cyassl-lib - This is a port of cyaSSL 2.7.0.

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This is a port of cyaSSL 2.7.0.

Dependents: CyaSSL_DTLS_Cellular CyaSSL_DTLS_Ethernet

ctaocrypt/src/aes.c@0:714293de3836, 2013-09-05 (annotated)

Committer:: ashleymills
Date:: Thu Sep 05 10:33:04 2013 +0000
Revision:: 0:714293de3836

Initial commit

Who changed what in which revision?

User	Revision	Line number	New contents of line
ashleymills	0:714293de3836	1	/* aes.c
ashleymills	0:714293de3836	2	*
ashleymills	0:714293de3836	3	* Copyright (C) 2006-2013 wolfSSL Inc.
ashleymills	0:714293de3836	4	*
ashleymills	0:714293de3836	5	* This file is part of CyaSSL.
ashleymills	0:714293de3836	6	*
ashleymills	0:714293de3836	7	* CyaSSL is free software; you can redistribute it and/or modify
ashleymills	0:714293de3836	8	* it under the terms of the GNU General Public License as published by
ashleymills	0:714293de3836	9	* the Free Software Foundation; either version 2 of the License, or
ashleymills	0:714293de3836	10	* (at your option) any later version.
ashleymills	0:714293de3836	11	*
ashleymills	0:714293de3836	12	* CyaSSL is distributed in the hope that it will be useful,
ashleymills	0:714293de3836	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
ashleymills	0:714293de3836	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ashleymills	0:714293de3836	15	* GNU General Public License for more details.
ashleymills	0:714293de3836	16	*
ashleymills	0:714293de3836	17	* You should have received a copy of the GNU General Public License
ashleymills	0:714293de3836	18	* along with this program; if not, write to the Free Software
ashleymills	0:714293de3836	19	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
ashleymills	0:714293de3836	20	*/
ashleymills	0:714293de3836	21
ashleymills	0:714293de3836	22	#ifdef HAVE_CONFIG_H
ashleymills	0:714293de3836	23	#include <config.h>
ashleymills	0:714293de3836	24	#endif
ashleymills	0:714293de3836	25
ashleymills	0:714293de3836	26	#include <cyassl/ctaocrypt/settings.h>
ashleymills	0:714293de3836	27
ashleymills	0:714293de3836	28	#ifndef NO_AES
ashleymills	0:714293de3836	29
ashleymills	0:714293de3836	30	#include <cyassl/ctaocrypt/aes.h>
ashleymills	0:714293de3836	31	#include <cyassl/ctaocrypt/ctaoerror2.h>
ashleymills	0:714293de3836	32	#include <cyassl/ctaocrypt/logging.h>
ashleymills	0:714293de3836	33	#ifdef NO_INLINE
ashleymills	0:714293de3836	34	#include <cyassl/ctaocrypt/misc.h>
ashleymills	0:714293de3836	35	#else
ashleymills	0:714293de3836	36	#include <ctaocrypt/src/misc.c>
ashleymills	0:714293de3836	37	#endif
ashleymills	0:714293de3836	38
ashleymills	0:714293de3836	39
ashleymills	0:714293de3836	40	#ifdef _MSC_VER
ashleymills	0:714293de3836	41	/* 4127 warning constant while(1) */
ashleymills	0:714293de3836	42	#pragma warning(disable: 4127)
ashleymills	0:714293de3836	43	#endif
ashleymills	0:714293de3836	44
ashleymills	0:714293de3836	45
ashleymills	0:714293de3836	46	#ifdef HAVE_CAVIUM
ashleymills	0:714293de3836	47	static int AesCaviumSetKey(Aes* aes, const byte* key, word32 length,
ashleymills	0:714293de3836	48	const byte* iv);
ashleymills	0:714293de3836	49	static void AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in,
ashleymills	0:714293de3836	50	word32 length);
ashleymills	0:714293de3836	51	static void AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in,
ashleymills	0:714293de3836	52	word32 length);
ashleymills	0:714293de3836	53	#endif
ashleymills	0:714293de3836	54
ashleymills	0:714293de3836	55	#ifdef STM32F2_CRYPTO
ashleymills	0:714293de3836	56	/*
ashleymills	0:714293de3836	57	* STM32F2 hardware AES support through the STM32F2 standard peripheral
ashleymills	0:714293de3836	58	* library. Documentation located in STM32F2xx Standard Peripheral Library
ashleymills	0:714293de3836	59	* document (See note in README).
ashleymills	0:714293de3836	60	*/
ashleymills	0:714293de3836	61	#include "stm32f2xx.h"
ashleymills	0:714293de3836	62	#include "stm32f2xx_cryp.h"
ashleymills	0:714293de3836	63
ashleymills	0:714293de3836	64	int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv,
ashleymills	0:714293de3836	65	int dir)
ashleymills	0:714293de3836	66	{
ashleymills	0:714293de3836	67	word32 *rk = aes->key;
ashleymills	0:714293de3836	68
ashleymills	0:714293de3836	69	if (!((keylen == 16) \|\| (keylen == 24) \|\| (keylen == 32)))
ashleymills	0:714293de3836	70	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	71
ashleymills	0:714293de3836	72	aes->rounds = keylen/4 + 6;
ashleymills	0:714293de3836	73	XMEMCPY(rk, userKey, keylen);
ashleymills	0:714293de3836	74	ByteReverseWords(rk, rk, keylen);
ashleymills	0:714293de3836	75
ashleymills	0:714293de3836	76	return AesSetIV(aes, iv);
ashleymills	0:714293de3836	77	}
ashleymills	0:714293de3836	78
ashleymills	0:714293de3836	79	int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
ashleymills	0:714293de3836	80	{
ashleymills	0:714293de3836	81	word32 enc_key, iv;
ashleymills	0:714293de3836	82	CRYP_InitTypeDef AES_CRYP_InitStructure;
ashleymills	0:714293de3836	83	CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure;
ashleymills	0:714293de3836	84	CRYP_IVInitTypeDef AES_CRYP_IVInitStructure;
ashleymills	0:714293de3836	85
ashleymills	0:714293de3836	86	enc_key = aes->key;
ashleymills	0:714293de3836	87	iv = aes->reg;
ashleymills	0:714293de3836	88
ashleymills	0:714293de3836	89	/* crypto structure initialization */
ashleymills	0:714293de3836	90	CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure);
ashleymills	0:714293de3836	91	CRYP_StructInit(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	92	CRYP_IVStructInit(&AES_CRYP_IVInitStructure);
ashleymills	0:714293de3836	93
ashleymills	0:714293de3836	94	/* reset registers to their default values */
ashleymills	0:714293de3836	95	CRYP_DeInit();
ashleymills	0:714293de3836	96
ashleymills	0:714293de3836	97	/* load key into correct registers */
ashleymills	0:714293de3836	98	switch(aes->rounds)
ashleymills	0:714293de3836	99	{
ashleymills	0:714293de3836	100	case 10: /* 128-bit key */
ashleymills	0:714293de3836	101	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
ashleymills	0:714293de3836	102	AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[0];
ashleymills	0:714293de3836	103	AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1];
ashleymills	0:714293de3836	104	AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[2];
ashleymills	0:714293de3836	105	AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3];
ashleymills	0:714293de3836	106	break;
ashleymills	0:714293de3836	107
ashleymills	0:714293de3836	108	case 12: /* 192-bit key */
ashleymills	0:714293de3836	109	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b;
ashleymills	0:714293de3836	110	AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[0];
ashleymills	0:714293de3836	111	AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1];
ashleymills	0:714293de3836	112	AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[2];
ashleymills	0:714293de3836	113	AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3];
ashleymills	0:714293de3836	114	AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[4];
ashleymills	0:714293de3836	115	AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5];
ashleymills	0:714293de3836	116	break;
ashleymills	0:714293de3836	117
ashleymills	0:714293de3836	118	case 14: /* 256-bit key */
ashleymills	0:714293de3836	119	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b;
ashleymills	0:714293de3836	120	AES_CRYP_KeyInitStructure.CRYP_Key0Left = enc_key[0];
ashleymills	0:714293de3836	121	AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1];
ashleymills	0:714293de3836	122	AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[2];
ashleymills	0:714293de3836	123	AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3];
ashleymills	0:714293de3836	124	AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[4];
ashleymills	0:714293de3836	125	AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5];
ashleymills	0:714293de3836	126	AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[6];
ashleymills	0:714293de3836	127	AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7];
ashleymills	0:714293de3836	128	break;
ashleymills	0:714293de3836	129
ashleymills	0:714293de3836	130	default:
ashleymills	0:714293de3836	131	break;
ashleymills	0:714293de3836	132	}
ashleymills	0:714293de3836	133	CRYP_KeyInit(&AES_CRYP_KeyInitStructure);
ashleymills	0:714293de3836	134
ashleymills	0:714293de3836	135	/* set iv */
ashleymills	0:714293de3836	136	ByteReverseWords(iv, iv, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	137	AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0];
ashleymills	0:714293de3836	138	AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1];
ashleymills	0:714293de3836	139	AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2];
ashleymills	0:714293de3836	140	AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3];
ashleymills	0:714293de3836	141	CRYP_IVInit(&AES_CRYP_IVInitStructure);
ashleymills	0:714293de3836	142
ashleymills	0:714293de3836	143	/* set direction, mode, and datatype */
ashleymills	0:714293de3836	144	AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt;
ashleymills	0:714293de3836	145	AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC;
ashleymills	0:714293de3836	146	AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b;
ashleymills	0:714293de3836	147	CRYP_Init(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	148
ashleymills	0:714293de3836	149	/* enable crypto processor */
ashleymills	0:714293de3836	150	CRYP_Cmd(ENABLE);
ashleymills	0:714293de3836	151
ashleymills	0:714293de3836	152	while (sz > 0)
ashleymills	0:714293de3836	153	{
ashleymills	0:714293de3836	154	/* flush IN/OUT FIFOs */
ashleymills	0:714293de3836	155	CRYP_FIFOFlush();
ashleymills	0:714293de3836	156
ashleymills	0:714293de3836	157	CRYP_DataIn((uint32_t)&in[0]);
ashleymills	0:714293de3836	158	CRYP_DataIn((uint32_t)&in[4]);
ashleymills	0:714293de3836	159	CRYP_DataIn((uint32_t)&in[8]);
ashleymills	0:714293de3836	160	CRYP_DataIn((uint32_t)&in[12]);
ashleymills	0:714293de3836	161
ashleymills	0:714293de3836	162	/* wait until the complete message has been processed */
ashleymills	0:714293de3836	163	while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}
ashleymills	0:714293de3836	164
ashleymills	0:714293de3836	165	(uint32_t)&out[0] = CRYP_DataOut();
ashleymills	0:714293de3836	166	(uint32_t)&out[4] = CRYP_DataOut();
ashleymills	0:714293de3836	167	(uint32_t)&out[8] = CRYP_DataOut();
ashleymills	0:714293de3836	168	(uint32_t)&out[12] = CRYP_DataOut();
ashleymills	0:714293de3836	169
ashleymills	0:714293de3836	170	/* store iv for next call */
ashleymills	0:714293de3836	171	XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	172
ashleymills	0:714293de3836	173	sz -= 16;
ashleymills	0:714293de3836	174	in += 16;
ashleymills	0:714293de3836	175	out += 16;
ashleymills	0:714293de3836	176	}
ashleymills	0:714293de3836	177
ashleymills	0:714293de3836	178	/* disable crypto processor */
ashleymills	0:714293de3836	179	CRYP_Cmd(DISABLE);
ashleymills	0:714293de3836	180
ashleymills	0:714293de3836	181	return 0;
ashleymills	0:714293de3836	182	}
ashleymills	0:714293de3836	183
ashleymills	0:714293de3836	184	int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
ashleymills	0:714293de3836	185	{
ashleymills	0:714293de3836	186	word32 dec_key, iv;
ashleymills	0:714293de3836	187	CRYP_InitTypeDef AES_CRYP_InitStructure;
ashleymills	0:714293de3836	188	CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure;
ashleymills	0:714293de3836	189	CRYP_IVInitTypeDef AES_CRYP_IVInitStructure;
ashleymills	0:714293de3836	190
ashleymills	0:714293de3836	191	dec_key = aes->key;
ashleymills	0:714293de3836	192	iv = aes->reg;
ashleymills	0:714293de3836	193
ashleymills	0:714293de3836	194	/* crypto structure initialization */
ashleymills	0:714293de3836	195	CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure);
ashleymills	0:714293de3836	196	CRYP_StructInit(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	197	CRYP_IVStructInit(&AES_CRYP_IVInitStructure);
ashleymills	0:714293de3836	198
ashleymills	0:714293de3836	199	/* if input and output same will overwrite input iv */
ashleymills	0:714293de3836	200	XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	201
ashleymills	0:714293de3836	202	/* reset registers to their default values */
ashleymills	0:714293de3836	203	CRYP_DeInit();
ashleymills	0:714293de3836	204
ashleymills	0:714293de3836	205	/* load key into correct registers */
ashleymills	0:714293de3836	206	switch(aes->rounds)
ashleymills	0:714293de3836	207	{
ashleymills	0:714293de3836	208	case 10: /* 128-bit key */
ashleymills	0:714293de3836	209	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
ashleymills	0:714293de3836	210	AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[0];
ashleymills	0:714293de3836	211	AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[1];
ashleymills	0:714293de3836	212	AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[2];
ashleymills	0:714293de3836	213	AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[3];
ashleymills	0:714293de3836	214	break;
ashleymills	0:714293de3836	215
ashleymills	0:714293de3836	216	case 12: /* 192-bit key */
ashleymills	0:714293de3836	217	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b;
ashleymills	0:714293de3836	218	AES_CRYP_KeyInitStructure.CRYP_Key1Left = dec_key[0];
ashleymills	0:714293de3836	219	AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[1];
ashleymills	0:714293de3836	220	AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[2];
ashleymills	0:714293de3836	221	AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[3];
ashleymills	0:714293de3836	222	AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[4];
ashleymills	0:714293de3836	223	AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[5];
ashleymills	0:714293de3836	224	break;
ashleymills	0:714293de3836	225
ashleymills	0:714293de3836	226	case 14: /* 256-bit key */
ashleymills	0:714293de3836	227	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b;
ashleymills	0:714293de3836	228	AES_CRYP_KeyInitStructure.CRYP_Key0Left = dec_key[0];
ashleymills	0:714293de3836	229	AES_CRYP_KeyInitStructure.CRYP_Key0Right = dec_key[1];
ashleymills	0:714293de3836	230	AES_CRYP_KeyInitStructure.CRYP_Key1Left = dec_key[2];
ashleymills	0:714293de3836	231	AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[3];
ashleymills	0:714293de3836	232	AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[4];
ashleymills	0:714293de3836	233	AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[5];
ashleymills	0:714293de3836	234	AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[6];
ashleymills	0:714293de3836	235	AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[7];
ashleymills	0:714293de3836	236	break;
ashleymills	0:714293de3836	237
ashleymills	0:714293de3836	238	default:
ashleymills	0:714293de3836	239	break;
ashleymills	0:714293de3836	240	}
ashleymills	0:714293de3836	241
ashleymills	0:714293de3836	242	/* set direction, mode, and datatype for key preparation */
ashleymills	0:714293de3836	243	AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt;
ashleymills	0:714293de3836	244	AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_Key;
ashleymills	0:714293de3836	245	AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
ashleymills	0:714293de3836	246	CRYP_Init(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	247	CRYP_KeyInit(&AES_CRYP_KeyInitStructure);
ashleymills	0:714293de3836	248
ashleymills	0:714293de3836	249	/* enable crypto processor */
ashleymills	0:714293de3836	250	CRYP_Cmd(ENABLE);
ashleymills	0:714293de3836	251
ashleymills	0:714293de3836	252	/* wait until key has been prepared */
ashleymills	0:714293de3836	253	while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}
ashleymills	0:714293de3836	254
ashleymills	0:714293de3836	255	/* set direction, mode, and datatype for decryption */
ashleymills	0:714293de3836	256	AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt;
ashleymills	0:714293de3836	257	AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC;
ashleymills	0:714293de3836	258	AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b;
ashleymills	0:714293de3836	259	CRYP_Init(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	260
ashleymills	0:714293de3836	261	/* set iv */
ashleymills	0:714293de3836	262	ByteReverseWords(iv, iv, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	263
ashleymills	0:714293de3836	264	AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0];
ashleymills	0:714293de3836	265	AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1];
ashleymills	0:714293de3836	266	AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2];
ashleymills	0:714293de3836	267	AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3];
ashleymills	0:714293de3836	268	CRYP_IVInit(&AES_CRYP_IVInitStructure);
ashleymills	0:714293de3836	269
ashleymills	0:714293de3836	270	/* enable crypto processor */
ashleymills	0:714293de3836	271	CRYP_Cmd(ENABLE);
ashleymills	0:714293de3836	272
ashleymills	0:714293de3836	273	while (sz > 0)
ashleymills	0:714293de3836	274	{
ashleymills	0:714293de3836	275	/* flush IN/OUT FIFOs */
ashleymills	0:714293de3836	276	CRYP_FIFOFlush();
ashleymills	0:714293de3836	277
ashleymills	0:714293de3836	278	CRYP_DataIn((uint32_t)&in[0]);
ashleymills	0:714293de3836	279	CRYP_DataIn((uint32_t)&in[4]);
ashleymills	0:714293de3836	280	CRYP_DataIn((uint32_t)&in[8]);
ashleymills	0:714293de3836	281	CRYP_DataIn((uint32_t)&in[12]);
ashleymills	0:714293de3836	282
ashleymills	0:714293de3836	283	/* wait until the complete message has been processed */
ashleymills	0:714293de3836	284	while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}
ashleymills	0:714293de3836	285
ashleymills	0:714293de3836	286	(uint32_t)&out[0] = CRYP_DataOut();
ashleymills	0:714293de3836	287	(uint32_t)&out[4] = CRYP_DataOut();
ashleymills	0:714293de3836	288	(uint32_t)&out[8] = CRYP_DataOut();
ashleymills	0:714293de3836	289	(uint32_t)&out[12] = CRYP_DataOut();
ashleymills	0:714293de3836	290
ashleymills	0:714293de3836	291	/* store iv for next call */
ashleymills	0:714293de3836	292	XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	293
ashleymills	0:714293de3836	294	sz -= 16;
ashleymills	0:714293de3836	295	in += 16;
ashleymills	0:714293de3836	296	out += 16;
ashleymills	0:714293de3836	297	}
ashleymills	0:714293de3836	298
ashleymills	0:714293de3836	299	/* disable crypto processor */
ashleymills	0:714293de3836	300	CRYP_Cmd(DISABLE);
ashleymills	0:714293de3836	301
ashleymills	0:714293de3836	302	return 0;
ashleymills	0:714293de3836	303	}
ashleymills	0:714293de3836	304
ashleymills	0:714293de3836	305	#ifdef CYASSL_AES_COUNTER
ashleymills	0:714293de3836	306
ashleymills	0:714293de3836	307	/* AES-CTR calls this for key setup */
ashleymills	0:714293de3836	308	int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen,
ashleymills	0:714293de3836	309	const byte* iv, int dir)
ashleymills	0:714293de3836	310	{
ashleymills	0:714293de3836	311	return AesSetKey(aes, userKey, keylen, iv, dir);
ashleymills	0:714293de3836	312	}
ashleymills	0:714293de3836	313
ashleymills	0:714293de3836	314	void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
ashleymills	0:714293de3836	315	{
ashleymills	0:714293de3836	316	word32 enc_key, iv;
ashleymills	0:714293de3836	317	CRYP_InitTypeDef AES_CRYP_InitStructure;
ashleymills	0:714293de3836	318	CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure;
ashleymills	0:714293de3836	319	CRYP_IVInitTypeDef AES_CRYP_IVInitStructure;
ashleymills	0:714293de3836	320
ashleymills	0:714293de3836	321	enc_key = aes->key;
ashleymills	0:714293de3836	322	iv = aes->reg;
ashleymills	0:714293de3836	323
ashleymills	0:714293de3836	324	/* crypto structure initialization */
ashleymills	0:714293de3836	325	CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure);
ashleymills	0:714293de3836	326	CRYP_StructInit(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	327	CRYP_IVStructInit(&AES_CRYP_IVInitStructure);
ashleymills	0:714293de3836	328
ashleymills	0:714293de3836	329	/* reset registers to their default values */
ashleymills	0:714293de3836	330	CRYP_DeInit();
ashleymills	0:714293de3836	331
ashleymills	0:714293de3836	332	/* load key into correct registers */
ashleymills	0:714293de3836	333	switch(aes->rounds)
ashleymills	0:714293de3836	334	{
ashleymills	0:714293de3836	335	case 10: /* 128-bit key */
ashleymills	0:714293de3836	336	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
ashleymills	0:714293de3836	337	AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[0];
ashleymills	0:714293de3836	338	AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1];
ashleymills	0:714293de3836	339	AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[2];
ashleymills	0:714293de3836	340	AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3];
ashleymills	0:714293de3836	341	break;
ashleymills	0:714293de3836	342
ashleymills	0:714293de3836	343	case 12: /* 192-bit key */
ashleymills	0:714293de3836	344	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b;
ashleymills	0:714293de3836	345	AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[0];
ashleymills	0:714293de3836	346	AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1];
ashleymills	0:714293de3836	347	AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[2];
ashleymills	0:714293de3836	348	AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3];
ashleymills	0:714293de3836	349	AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[4];
ashleymills	0:714293de3836	350	AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5];
ashleymills	0:714293de3836	351	break;
ashleymills	0:714293de3836	352
ashleymills	0:714293de3836	353	case 14: /* 256-bit key */
ashleymills	0:714293de3836	354	AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b;
ashleymills	0:714293de3836	355	AES_CRYP_KeyInitStructure.CRYP_Key0Left = enc_key[0];
ashleymills	0:714293de3836	356	AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1];
ashleymills	0:714293de3836	357	AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[2];
ashleymills	0:714293de3836	358	AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3];
ashleymills	0:714293de3836	359	AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[4];
ashleymills	0:714293de3836	360	AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5];
ashleymills	0:714293de3836	361	AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[6];
ashleymills	0:714293de3836	362	AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7];
ashleymills	0:714293de3836	363	break;
ashleymills	0:714293de3836	364
ashleymills	0:714293de3836	365	default:
ashleymills	0:714293de3836	366	break;
ashleymills	0:714293de3836	367	}
ashleymills	0:714293de3836	368	CRYP_KeyInit(&AES_CRYP_KeyInitStructure);
ashleymills	0:714293de3836	369
ashleymills	0:714293de3836	370	/* set iv */
ashleymills	0:714293de3836	371	ByteReverseWords(iv, iv, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	372	AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0];
ashleymills	0:714293de3836	373	AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1];
ashleymills	0:714293de3836	374	AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2];
ashleymills	0:714293de3836	375	AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3];
ashleymills	0:714293de3836	376	CRYP_IVInit(&AES_CRYP_IVInitStructure);
ashleymills	0:714293de3836	377
ashleymills	0:714293de3836	378	/* set direction, mode, and datatype */
ashleymills	0:714293de3836	379	AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt;
ashleymills	0:714293de3836	380	AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CTR;
ashleymills	0:714293de3836	381	AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b;
ashleymills	0:714293de3836	382	CRYP_Init(&AES_CRYP_InitStructure);
ashleymills	0:714293de3836	383
ashleymills	0:714293de3836	384	/* enable crypto processor */
ashleymills	0:714293de3836	385	CRYP_Cmd(ENABLE);
ashleymills	0:714293de3836	386
ashleymills	0:714293de3836	387	while (sz > 0)
ashleymills	0:714293de3836	388	{
ashleymills	0:714293de3836	389	/* flush IN/OUT FIFOs */
ashleymills	0:714293de3836	390	CRYP_FIFOFlush();
ashleymills	0:714293de3836	391
ashleymills	0:714293de3836	392	CRYP_DataIn((uint32_t)&in[0]);
ashleymills	0:714293de3836	393	CRYP_DataIn((uint32_t)&in[4]);
ashleymills	0:714293de3836	394	CRYP_DataIn((uint32_t)&in[8]);
ashleymills	0:714293de3836	395	CRYP_DataIn((uint32_t)&in[12]);
ashleymills	0:714293de3836	396
ashleymills	0:714293de3836	397	/* wait until the complete message has been processed */
ashleymills	0:714293de3836	398	while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}
ashleymills	0:714293de3836	399
ashleymills	0:714293de3836	400	(uint32_t)&out[0] = CRYP_DataOut();
ashleymills	0:714293de3836	401	(uint32_t)&out[4] = CRYP_DataOut();
ashleymills	0:714293de3836	402	(uint32_t)&out[8] = CRYP_DataOut();
ashleymills	0:714293de3836	403	(uint32_t)&out[12] = CRYP_DataOut();
ashleymills	0:714293de3836	404
ashleymills	0:714293de3836	405	/* store iv for next call */
ashleymills	0:714293de3836	406	XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	407
ashleymills	0:714293de3836	408	sz -= 16;
ashleymills	0:714293de3836	409	in += 16;
ashleymills	0:714293de3836	410	out += 16;
ashleymills	0:714293de3836	411	}
ashleymills	0:714293de3836	412
ashleymills	0:714293de3836	413	/* disable crypto processor */
ashleymills	0:714293de3836	414	CRYP_Cmd(DISABLE);
ashleymills	0:714293de3836	415	}
ashleymills	0:714293de3836	416
ashleymills	0:714293de3836	417	#endif /* CYASSL_AES_COUNTER */
ashleymills	0:714293de3836	418
ashleymills	0:714293de3836	419	#else /* CTaoCrypt software implementation */
ashleymills	0:714293de3836	420
ashleymills	0:714293de3836	421	static const word32 rcon[] = {
ashleymills	0:714293de3836	422	0x01000000, 0x02000000, 0x04000000, 0x08000000,
ashleymills	0:714293de3836	423	0x10000000, 0x20000000, 0x40000000, 0x80000000,
ashleymills	0:714293de3836	424	0x1B000000, 0x36000000,
ashleymills	0:714293de3836	425	/* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
ashleymills	0:714293de3836	426	};
ashleymills	0:714293de3836	427
ashleymills	0:714293de3836	428
ashleymills	0:714293de3836	429	static const word32 Te[5][256] = {
ashleymills	0:714293de3836	430	{
ashleymills	0:714293de3836	431	0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU,
ashleymills	0:714293de3836	432	0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U,
ashleymills	0:714293de3836	433	0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU,
ashleymills	0:714293de3836	434	0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU,
ashleymills	0:714293de3836	435	0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U,
ashleymills	0:714293de3836	436	0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU,
ashleymills	0:714293de3836	437	0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU,
ashleymills	0:714293de3836	438	0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU,
ashleymills	0:714293de3836	439	0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU,
ashleymills	0:714293de3836	440	0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU,
ashleymills	0:714293de3836	441	0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U,
ashleymills	0:714293de3836	442	0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU,
ashleymills	0:714293de3836	443	0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU,
ashleymills	0:714293de3836	444	0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U,
ashleymills	0:714293de3836	445	0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU,
ashleymills	0:714293de3836	446	0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU,
ashleymills	0:714293de3836	447	0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU,
ashleymills	0:714293de3836	448	0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU,
ashleymills	0:714293de3836	449	0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU,
ashleymills	0:714293de3836	450	0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U,
ashleymills	0:714293de3836	451	0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU,
ashleymills	0:714293de3836	452	0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU,
ashleymills	0:714293de3836	453	0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU,
ashleymills	0:714293de3836	454	0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU,
ashleymills	0:714293de3836	455	0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U,
ashleymills	0:714293de3836	456	0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U,
ashleymills	0:714293de3836	457	0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U,
ashleymills	0:714293de3836	458	0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U,
ashleymills	0:714293de3836	459	0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU,
ashleymills	0:714293de3836	460	0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U,
ashleymills	0:714293de3836	461	0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U,
ashleymills	0:714293de3836	462	0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU,
ashleymills	0:714293de3836	463	0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU,
ashleymills	0:714293de3836	464	0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U,
ashleymills	0:714293de3836	465	0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U,
ashleymills	0:714293de3836	466	0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U,
ashleymills	0:714293de3836	467	0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU,
ashleymills	0:714293de3836	468	0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U,
ashleymills	0:714293de3836	469	0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU,
ashleymills	0:714293de3836	470	0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U,
ashleymills	0:714293de3836	471	0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU,
ashleymills	0:714293de3836	472	0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U,
ashleymills	0:714293de3836	473	0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U,
ashleymills	0:714293de3836	474	0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU,
ashleymills	0:714293de3836	475	0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U,
ashleymills	0:714293de3836	476	0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U,
ashleymills	0:714293de3836	477	0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U,
ashleymills	0:714293de3836	478	0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U,
ashleymills	0:714293de3836	479	0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U,
ashleymills	0:714293de3836	480	0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U,
ashleymills	0:714293de3836	481	0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U,
ashleymills	0:714293de3836	482	0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U,
ashleymills	0:714293de3836	483	0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU,
ashleymills	0:714293de3836	484	0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U,
ashleymills	0:714293de3836	485	0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U,
ashleymills	0:714293de3836	486	0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U,
ashleymills	0:714293de3836	487	0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U,
ashleymills	0:714293de3836	488	0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U,
ashleymills	0:714293de3836	489	0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U,
ashleymills	0:714293de3836	490	0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU,
ashleymills	0:714293de3836	491	0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U,
ashleymills	0:714293de3836	492	0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U,
ashleymills	0:714293de3836	493	0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U,
ashleymills	0:714293de3836	494	0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU,
ashleymills	0:714293de3836	495	},
ashleymills	0:714293de3836	496	{
ashleymills	0:714293de3836	497	0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU,
ashleymills	0:714293de3836	498	0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U,
ashleymills	0:714293de3836	499	0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU,
ashleymills	0:714293de3836	500	0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U,
ashleymills	0:714293de3836	501	0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU,
ashleymills	0:714293de3836	502	0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U,
ashleymills	0:714293de3836	503	0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU,
ashleymills	0:714293de3836	504	0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U,
ashleymills	0:714293de3836	505	0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U,
ashleymills	0:714293de3836	506	0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU,
ashleymills	0:714293de3836	507	0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U,
ashleymills	0:714293de3836	508	0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U,
ashleymills	0:714293de3836	509	0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U,
ashleymills	0:714293de3836	510	0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU,
ashleymills	0:714293de3836	511	0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U,
ashleymills	0:714293de3836	512	0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U,
ashleymills	0:714293de3836	513	0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU,
ashleymills	0:714293de3836	514	0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U,
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ashleymills	0:714293de3836	669	0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U,
ashleymills	0:714293de3836	670	0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U,
ashleymills	0:714293de3836	671	0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U,
ashleymills	0:714293de3836	672	0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U,
ashleymills	0:714293de3836	673	0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU,
ashleymills	0:714293de3836	674	0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U,
ashleymills	0:714293de3836	675	0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU,
ashleymills	0:714293de3836	676	0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U,
ashleymills	0:714293de3836	677	0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU,
ashleymills	0:714293de3836	678	0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U,
ashleymills	0:714293de3836	679	0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU,
ashleymills	0:714293de3836	680	0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU,
ashleymills	0:714293de3836	681	0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU,
ashleymills	0:714293de3836	682	0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU,
ashleymills	0:714293de3836	683	0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U,
ashleymills	0:714293de3836	684	0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U,
ashleymills	0:714293de3836	685	0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U,
ashleymills	0:714293de3836	686	0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U,
ashleymills	0:714293de3836	687	0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U,
ashleymills	0:714293de3836	688	0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U,
ashleymills	0:714293de3836	689	0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU,
ashleymills	0:714293de3836	690	0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U,
ashleymills	0:714293de3836	691	0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU,
ashleymills	0:714293de3836	692	0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU,
ashleymills	0:714293de3836	693	},
ashleymills	0:714293de3836	694	{
ashleymills	0:714293de3836	695	0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU,
ashleymills	0:714293de3836	696	0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U,
ashleymills	0:714293de3836	697	0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU,
ashleymills	0:714293de3836	698	0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U,
ashleymills	0:714293de3836	699	0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU,
ashleymills	0:714293de3836	700	0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U,
ashleymills	0:714293de3836	701	0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU,
ashleymills	0:714293de3836	702	0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U,
ashleymills	0:714293de3836	703	0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U,
ashleymills	0:714293de3836	704	0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU,
ashleymills	0:714293de3836	705	0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U,
ashleymills	0:714293de3836	706	0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U,
ashleymills	0:714293de3836	707	0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U,
ashleymills	0:714293de3836	708	0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU,
ashleymills	0:714293de3836	709	0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U,
ashleymills	0:714293de3836	710	0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U,
ashleymills	0:714293de3836	711	0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU,
ashleymills	0:714293de3836	712	0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U,
ashleymills	0:714293de3836	713	0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U,
ashleymills	0:714293de3836	714	0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U,
ashleymills	0:714293de3836	715	0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU,
ashleymills	0:714293de3836	716	0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU,
ashleymills	0:714293de3836	717	0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U,
ashleymills	0:714293de3836	718	0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU,
ashleymills	0:714293de3836	719	0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU,
ashleymills	0:714293de3836	720	0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U,
ashleymills	0:714293de3836	721	0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU,
ashleymills	0:714293de3836	722	0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U,
ashleymills	0:714293de3836	723	0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU,
ashleymills	0:714293de3836	724	0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U,
ashleymills	0:714293de3836	725	0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U,
ashleymills	0:714293de3836	726	0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U,
ashleymills	0:714293de3836	727	0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU,
ashleymills	0:714293de3836	728	0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U,
ashleymills	0:714293de3836	729	0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU,
ashleymills	0:714293de3836	730	0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U,
ashleymills	0:714293de3836	731	0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU,
ashleymills	0:714293de3836	732	0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U,
ashleymills	0:714293de3836	733	0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U,
ashleymills	0:714293de3836	734	0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU,
ashleymills	0:714293de3836	735	0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU,
ashleymills	0:714293de3836	736	0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU,
ashleymills	0:714293de3836	737	0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U,
ashleymills	0:714293de3836	738	0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U,
ashleymills	0:714293de3836	739	0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU,
ashleymills	0:714293de3836	740	0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U,
ashleymills	0:714293de3836	741	0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU,
ashleymills	0:714293de3836	742	0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U,
ashleymills	0:714293de3836	743	0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU,
ashleymills	0:714293de3836	744	0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U,
ashleymills	0:714293de3836	745	0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU,
ashleymills	0:714293de3836	746	0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU,
ashleymills	0:714293de3836	747	0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U,
ashleymills	0:714293de3836	748	0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU,
ashleymills	0:714293de3836	749	0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U,
ashleymills	0:714293de3836	750	0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU,
ashleymills	0:714293de3836	751	0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U,
ashleymills	0:714293de3836	752	0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U,
ashleymills	0:714293de3836	753	0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U,
ashleymills	0:714293de3836	754	0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU,
ashleymills	0:714293de3836	755	0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU,
ashleymills	0:714293de3836	756	0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U,
ashleymills	0:714293de3836	757	0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU,
ashleymills	0:714293de3836	758	0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U,
ashleymills	0:714293de3836	759	}
ashleymills	0:714293de3836	760	};
ashleymills	0:714293de3836	761
ashleymills	0:714293de3836	762
ashleymills	0:714293de3836	763	static const word32 Td[5][256] = {
ashleymills	0:714293de3836	764	{
ashleymills	0:714293de3836	765	0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U,
ashleymills	0:714293de3836	766	0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U,
ashleymills	0:714293de3836	767	0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U,
ashleymills	0:714293de3836	768	0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU,
ashleymills	0:714293de3836	769	0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U,
ashleymills	0:714293de3836	770	0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U,
ashleymills	0:714293de3836	771	0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU,
ashleymills	0:714293de3836	772	0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U,
ashleymills	0:714293de3836	773	0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU,
ashleymills	0:714293de3836	774	0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U,
ashleymills	0:714293de3836	775	0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U,
ashleymills	0:714293de3836	776	0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U,
ashleymills	0:714293de3836	777	0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U,
ashleymills	0:714293de3836	778	0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU,
ashleymills	0:714293de3836	779	0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U,
ashleymills	0:714293de3836	780	0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU,
ashleymills	0:714293de3836	781	0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U,
ashleymills	0:714293de3836	782	0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU,
ashleymills	0:714293de3836	783	0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U,
ashleymills	0:714293de3836	784	0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U,
ashleymills	0:714293de3836	785	0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U,
ashleymills	0:714293de3836	786	0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU,
ashleymills	0:714293de3836	787	0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U,
ashleymills	0:714293de3836	788	0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU,
ashleymills	0:714293de3836	789	0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U,
ashleymills	0:714293de3836	790	0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU,
ashleymills	0:714293de3836	791	0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U,
ashleymills	0:714293de3836	792	0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU,
ashleymills	0:714293de3836	793	0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU,
ashleymills	0:714293de3836	794	0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U,
ashleymills	0:714293de3836	795	0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU,
ashleymills	0:714293de3836	796	0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U,
ashleymills	0:714293de3836	797	0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU,
ashleymills	0:714293de3836	798	0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U,
ashleymills	0:714293de3836	799	0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U,
ashleymills	0:714293de3836	800	0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U,
ashleymills	0:714293de3836	801	0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU,
ashleymills	0:714293de3836	802	0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U,
ashleymills	0:714293de3836	803	0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U,
ashleymills	0:714293de3836	804	0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU,
ashleymills	0:714293de3836	805	0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U,
ashleymills	0:714293de3836	806	0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U,
ashleymills	0:714293de3836	807	0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U,
ashleymills	0:714293de3836	808	0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U,
ashleymills	0:714293de3836	809	0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U,
ashleymills	0:714293de3836	810	0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU,
ashleymills	0:714293de3836	811	0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U,
ashleymills	0:714293de3836	812	0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U,
ashleymills	0:714293de3836	813	0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, 0x29b07cd6U,
ashleymills	0:714293de3836	814	0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U,
ashleymills	0:714293de3836	815	0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U,
ashleymills	0:714293de3836	816	0xf104984aU, 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU,
ashleymills	0:714293de3836	817	0x764dd68dU, 0x43efb04dU, 0xccaa4d54U, 0xe49604dfU,
ashleymills	0:714293de3836	818	0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, 0x4665517fU,
ashleymills	0:714293de3836	819	0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU,
ashleymills	0:714293de3836	820	0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U,
ashleymills	0:714293de3836	821	0x9ad7618cU, 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U,
ashleymills	0:714293de3836	822	0xcea927eeU, 0xb761c935U, 0xe11ce5edU, 0x7a47b13cU,
ashleymills	0:714293de3836	823	0x9cd2df59U, 0x55f2733fU, 0x1814ce79U, 0x73c737bfU,
ashleymills	0:714293de3836	824	0x53f7cdeaU, 0x5ffdaa5bU, 0xdf3d6f14U, 0x7844db86U,
ashleymills	0:714293de3836	825	0xcaaff381U, 0xb968c43eU, 0x3824342cU, 0xc2a3405fU,
ashleymills	0:714293de3836	826	0x161dc372U, 0xbce2250cU, 0x283c498bU, 0xff0d9541U,
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ashleymills	0:714293de3836	983	0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU,
ashleymills	0:714293de3836	984	0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU,
ashleymills	0:714293de3836	985	0x548db591U, 0xc45d0571U, 0x06d46f04U, 0x5015ff60U,
ashleymills	0:714293de3836	986	0x98fb2419U, 0xbde997d6U, 0x4043cc89U, 0xd99e7767U,
ashleymills	0:714293de3836	987	0xe842bdb0U, 0x898b8807U, 0x195b38e7U, 0xc8eedb79U,
ashleymills	0:714293de3836	988	0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U,
ashleymills	0:714293de3836	989	0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU,
ashleymills	0:714293de3836	990	0x0efffbfdU, 0x8538560fU, 0xaed51e3dU, 0x2d392736U,
ashleymills	0:714293de3836	991	0x0fd9640aU, 0x5ca62168U, 0x5b54d19bU, 0x362e3a24U,
ashleymills	0:714293de3836	992	0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, 0x9b919e1bU,
ashleymills	0:714293de3836	993	0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU,
ashleymills	0:714293de3836	994	0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U,
ashleymills	0:714293de3836	995	0x090d0b0eU, 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U,
ashleymills	0:714293de3836	996	0xf1198557U, 0x75074cafU, 0x99ddbbeeU, 0x7f60fda3U,
ashleymills	0:714293de3836	997	0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, 0xfb7e345bU,
ashleymills	0:714293de3836	998	0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U,
ashleymills	0:714293de3836	999	0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U,
ashleymills	0:714293de3836	1000	0x4a247d85U, 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U,
ashleymills	0:714293de3836	1001	0x9e2f4b1dU, 0xb230f3dcU, 0x8652ec0dU, 0xc1e3d077U,
ashleymills	0:714293de3836	1002	0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, 0xe9642247U,
ashleymills	0:714293de3836	1003	0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U,
ashleymills	0:714293de3836	1004	0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U,
ashleymills	0:714293de3836	1005	0xf581cfa6U, 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU,
ashleymills	0:714293de3836	1006	0x3a9de42cU, 0x78920d50U, 0x5fcc9b6aU, 0x7e466254U,
ashleymills	0:714293de3836	1007	0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, 0xc3aff582U,
ashleymills	0:714293de3836	1008	0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU,
ashleymills	0:714293de3836	1009	0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU,
ashleymills	0:714293de3836	1010	0x267809cdU, 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U,
ashleymills	0:714293de3836	1011	0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU,
ashleymills	0:714293de3836	1012	0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U,
ashleymills	0:714293de3836	1013	0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U,
ashleymills	0:714293de3836	1014	0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U,
ashleymills	0:714293de3836	1015	0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U,
ashleymills	0:714293de3836	1016	0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U,
ashleymills	0:714293de3836	1017	0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U,
ashleymills	0:714293de3836	1018	0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU,
ashleymills	0:714293de3836	1019	0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU,
ashleymills	0:714293de3836	1020	0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU,
ashleymills	0:714293de3836	1021	0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU,
ashleymills	0:714293de3836	1022	0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U,
ashleymills	0:714293de3836	1023	0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U,
ashleymills	0:714293de3836	1024	0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U,
ashleymills	0:714293de3836	1025	0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU,
ashleymills	0:714293de3836	1026	0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U,
ashleymills	0:714293de3836	1027	0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U,
ashleymills	0:714293de3836	1028	},
ashleymills	0:714293de3836	1029	{
ashleymills	0:714293de3836	1030	0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U,
ashleymills	0:714293de3836	1031	0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U,
ashleymills	0:714293de3836	1032	0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU,
ashleymills	0:714293de3836	1033	0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU,
ashleymills	0:714293de3836	1034	0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U,
ashleymills	0:714293de3836	1035	0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U,
ashleymills	0:714293de3836	1036	0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U,
ashleymills	0:714293de3836	1037	0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU,
ashleymills	0:714293de3836	1038	0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U,
ashleymills	0:714293de3836	1039	0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU,
ashleymills	0:714293de3836	1040	0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU,
ashleymills	0:714293de3836	1041	0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU,
ashleymills	0:714293de3836	1042	0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U,
ashleymills	0:714293de3836	1043	0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U,
ashleymills	0:714293de3836	1044	0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U,
ashleymills	0:714293de3836	1045	0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U,
ashleymills	0:714293de3836	1046	0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U,
ashleymills	0:714293de3836	1047	0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U,
ashleymills	0:714293de3836	1048	0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU,
ashleymills	0:714293de3836	1049	0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U,
ashleymills	0:714293de3836	1050	0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U,
ashleymills	0:714293de3836	1051	0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU,
ashleymills	0:714293de3836	1052	0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U,
ashleymills	0:714293de3836	1053	0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U,
ashleymills	0:714293de3836	1054	0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U,
ashleymills	0:714293de3836	1055	0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU,
ashleymills	0:714293de3836	1056	0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U,
ashleymills	0:714293de3836	1057	0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U,
ashleymills	0:714293de3836	1058	0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU,
ashleymills	0:714293de3836	1059	0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U,
ashleymills	0:714293de3836	1060	0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U,
ashleymills	0:714293de3836	1061	0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU,
ashleymills	0:714293de3836	1062	0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U,
ashleymills	0:714293de3836	1063	0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU,
ashleymills	0:714293de3836	1064	0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU,
ashleymills	0:714293de3836	1065	0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U,
ashleymills	0:714293de3836	1066	0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U,
ashleymills	0:714293de3836	1067	0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U,
ashleymills	0:714293de3836	1068	0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U,
ashleymills	0:714293de3836	1069	0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU,
ashleymills	0:714293de3836	1070	0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U,
ashleymills	0:714293de3836	1071	0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U,
ashleymills	0:714293de3836	1072	0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU,
ashleymills	0:714293de3836	1073	0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU,
ashleymills	0:714293de3836	1074	0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU,
ashleymills	0:714293de3836	1075	0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U,
ashleymills	0:714293de3836	1076	0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU,
ashleymills	0:714293de3836	1077	0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U,
ashleymills	0:714293de3836	1078	0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U,
ashleymills	0:714293de3836	1079	0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U,
ashleymills	0:714293de3836	1080	0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U,
ashleymills	0:714293de3836	1081	0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU,
ashleymills	0:714293de3836	1082	0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U,
ashleymills	0:714293de3836	1083	0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU,
ashleymills	0:714293de3836	1084	0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU,
ashleymills	0:714293de3836	1085	0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU,
ashleymills	0:714293de3836	1086	0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU,
ashleymills	0:714293de3836	1087	0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U,
ashleymills	0:714293de3836	1088	0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU,
ashleymills	0:714293de3836	1089	0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U,
ashleymills	0:714293de3836	1090	0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU,
ashleymills	0:714293de3836	1091	0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U,
ashleymills	0:714293de3836	1092	0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U,
ashleymills	0:714293de3836	1093	0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU,
ashleymills	0:714293de3836	1094	}
ashleymills	0:714293de3836	1095	};
ashleymills	0:714293de3836	1096
ashleymills	0:714293de3836	1097
ashleymills	0:714293de3836	1098
ashleymills	0:714293de3836	1099	#define GETBYTE(x, y) (word32)((byte)((x) >> (8 * (y))))
ashleymills	0:714293de3836	1100
ashleymills	0:714293de3836	1101
ashleymills	0:714293de3836	1102	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1103
ashleymills	0:714293de3836	1104	#ifndef _MSC_VER
ashleymills	0:714293de3836	1105
ashleymills	0:714293de3836	1106	#define cpuid(func,ax,bx,cx,dx)\
ashleymills	0:714293de3836	1107	__asm__ __volatile__ ("cpuid":\
ashleymills	0:714293de3836	1108	"=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) : "a" (func));
ashleymills	0:714293de3836	1109
ashleymills	0:714293de3836	1110	#else
ashleymills	0:714293de3836	1111
ashleymills	0:714293de3836	1112	#define cpuid(func,ax,bx,cx,dx)\
ashleymills	0:714293de3836	1113	__asm mov eax, func \
ashleymills	0:714293de3836	1114	__asm cpuid \
ashleymills	0:714293de3836	1115	__asm mov ax, eax \
ashleymills	0:714293de3836	1116	__asm mov bx, ebx \
ashleymills	0:714293de3836	1117	__asm mov cx, ecx \
ashleymills	0:714293de3836	1118	__asm mov dx, edx
ashleymills	0:714293de3836	1119
ashleymills	0:714293de3836	1120	#endif /* _MSC_VER */
ashleymills	0:714293de3836	1121
ashleymills	0:714293de3836	1122
ashleymills	0:714293de3836	1123	static int Check_CPU_support_AES(void)
ashleymills	0:714293de3836	1124	{
ashleymills	0:714293de3836	1125	unsigned int a,b,c,d;
ashleymills	0:714293de3836	1126	cpuid(1,a,b,c,d);
ashleymills	0:714293de3836	1127
ashleymills	0:714293de3836	1128	if (c & 0x2000000)
ashleymills	0:714293de3836	1129	return 1;
ashleymills	0:714293de3836	1130
ashleymills	0:714293de3836	1131	return 0;
ashleymills	0:714293de3836	1132	}
ashleymills	0:714293de3836	1133
ashleymills	0:714293de3836	1134	static int checkAESNI = 0;
ashleymills	0:714293de3836	1135	static int haveAESNI = 0;
ashleymills	0:714293de3836	1136
ashleymills	0:714293de3836	1137
ashleymills	0:714293de3836	1138	/* tell C compiler these are asm functions in case any mix up of ABI underscore
ashleymills	0:714293de3836	1139	prefix between clang/gcc/llvm etc */
ashleymills	0:714293de3836	1140	void AES_CBC_encrypt(const unsigned char* in, unsigned char* out,
ashleymills	0:714293de3836	1141	unsigned char* ivec, unsigned long length,
ashleymills	0:714293de3836	1142	const unsigned char* KS, int nr)
ashleymills	0:714293de3836	1143	asm ("AES_CBC_encrypt");
ashleymills	0:714293de3836	1144
ashleymills	0:714293de3836	1145
ashleymills	0:714293de3836	1146	void AES_CBC_decrypt(const unsigned char* in, unsigned char* out,
ashleymills	0:714293de3836	1147	unsigned char* ivec, unsigned long length,
ashleymills	0:714293de3836	1148	const unsigned char* KS, int nr)
ashleymills	0:714293de3836	1149	asm ("AES_CBC_decrypt");
ashleymills	0:714293de3836	1150
ashleymills	0:714293de3836	1151	void AES_128_Key_Expansion(const unsigned char* userkey,
ashleymills	0:714293de3836	1152	unsigned char* key_schedule)
ashleymills	0:714293de3836	1153	asm ("AES_128_Key_Expansion");
ashleymills	0:714293de3836	1154
ashleymills	0:714293de3836	1155	void AES_192_Key_Expansion(const unsigned char* userkey,
ashleymills	0:714293de3836	1156	unsigned char* key_schedule)
ashleymills	0:714293de3836	1157	asm ("AES_192_Key_Expansion");
ashleymills	0:714293de3836	1158
ashleymills	0:714293de3836	1159	void AES_256_Key_Expansion(const unsigned char* userkey,
ashleymills	0:714293de3836	1160	unsigned char* key_schedule)
ashleymills	0:714293de3836	1161	asm ("AES_256_Key_Expansion");
ashleymills	0:714293de3836	1162
ashleymills	0:714293de3836	1163
ashleymills	0:714293de3836	1164	static int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
ashleymills	0:714293de3836	1165	Aes* aes)
ashleymills	0:714293de3836	1166	{
ashleymills	0:714293de3836	1167	if (!userKey \|\| !aes)
ashleymills	0:714293de3836	1168	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	1169
ashleymills	0:714293de3836	1170	if (bits == 128) {
ashleymills	0:714293de3836	1171	AES_128_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 10;
ashleymills	0:714293de3836	1172	return 0;
ashleymills	0:714293de3836	1173	}
ashleymills	0:714293de3836	1174	else if (bits == 192) {
ashleymills	0:714293de3836	1175	AES_192_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 12;
ashleymills	0:714293de3836	1176	return 0;
ashleymills	0:714293de3836	1177	}
ashleymills	0:714293de3836	1178	else if (bits == 256) {
ashleymills	0:714293de3836	1179	AES_256_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 14;
ashleymills	0:714293de3836	1180	return 0;
ashleymills	0:714293de3836	1181	}
ashleymills	0:714293de3836	1182	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	1183	}
ashleymills	0:714293de3836	1184
ashleymills	0:714293de3836	1185
ashleymills	0:714293de3836	1186	static int AES_set_decrypt_key(const unsigned char* userKey, const int bits,
ashleymills	0:714293de3836	1187	Aes* aes)
ashleymills	0:714293de3836	1188	{
ashleymills	0:714293de3836	1189	int nr;
ashleymills	0:714293de3836	1190	Aes temp_key;
ashleymills	0:714293de3836	1191	__m128i Key_Schedule = (__m128i)aes->key;
ashleymills	0:714293de3836	1192	__m128i Temp_Key_Schedule = (__m128i)temp_key.key;
ashleymills	0:714293de3836	1193
ashleymills	0:714293de3836	1194	if (!userKey \|\| !aes)
ashleymills	0:714293de3836	1195	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	1196
ashleymills	0:714293de3836	1197	if (AES_set_encrypt_key(userKey,bits,&temp_key) == BAD_FUNC_ARG)
ashleymills	0:714293de3836	1198	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	1199
ashleymills	0:714293de3836	1200	nr = temp_key.rounds;
ashleymills	0:714293de3836	1201	aes->rounds = nr;
ashleymills	0:714293de3836	1202
ashleymills	0:714293de3836	1203	Key_Schedule[nr] = Temp_Key_Schedule[0];
ashleymills	0:714293de3836	1204	Key_Schedule[nr-1] = _mm_aesimc_si128(Temp_Key_Schedule[1]);
ashleymills	0:714293de3836	1205	Key_Schedule[nr-2] = _mm_aesimc_si128(Temp_Key_Schedule[2]);
ashleymills	0:714293de3836	1206	Key_Schedule[nr-3] = _mm_aesimc_si128(Temp_Key_Schedule[3]);
ashleymills	0:714293de3836	1207	Key_Schedule[nr-4] = _mm_aesimc_si128(Temp_Key_Schedule[4]);
ashleymills	0:714293de3836	1208	Key_Schedule[nr-5] = _mm_aesimc_si128(Temp_Key_Schedule[5]);
ashleymills	0:714293de3836	1209	Key_Schedule[nr-6] = _mm_aesimc_si128(Temp_Key_Schedule[6]);
ashleymills	0:714293de3836	1210	Key_Schedule[nr-7] = _mm_aesimc_si128(Temp_Key_Schedule[7]);
ashleymills	0:714293de3836	1211	Key_Schedule[nr-8] = _mm_aesimc_si128(Temp_Key_Schedule[8]);
ashleymills	0:714293de3836	1212	Key_Schedule[nr-9] = _mm_aesimc_si128(Temp_Key_Schedule[9]);
ashleymills	0:714293de3836	1213
ashleymills	0:714293de3836	1214	if(nr>10) {
ashleymills	0:714293de3836	1215	Key_Schedule[nr-10] = _mm_aesimc_si128(Temp_Key_Schedule[10]);
ashleymills	0:714293de3836	1216	Key_Schedule[nr-11] = _mm_aesimc_si128(Temp_Key_Schedule[11]);
ashleymills	0:714293de3836	1217	}
ashleymills	0:714293de3836	1218
ashleymills	0:714293de3836	1219	if(nr>12) {
ashleymills	0:714293de3836	1220	Key_Schedule[nr-12] = _mm_aesimc_si128(Temp_Key_Schedule[12]);
ashleymills	0:714293de3836	1221	Key_Schedule[nr-13] = _mm_aesimc_si128(Temp_Key_Schedule[13]);
ashleymills	0:714293de3836	1222	}
ashleymills	0:714293de3836	1223
ashleymills	0:714293de3836	1224	Key_Schedule[0] = Temp_Key_Schedule[nr];
ashleymills	0:714293de3836	1225
ashleymills	0:714293de3836	1226	return 0;
ashleymills	0:714293de3836	1227	}
ashleymills	0:714293de3836	1228
ashleymills	0:714293de3836	1229
ashleymills	0:714293de3836	1230
ashleymills	0:714293de3836	1231	#endif /* CYASSL_AESNI */
ashleymills	0:714293de3836	1232
ashleymills	0:714293de3836	1233
ashleymills	0:714293de3836	1234	static int AesSetKeyLocal(Aes* aes, const byte* userKey, word32 keylen,
ashleymills	0:714293de3836	1235	const byte* iv, int dir)
ashleymills	0:714293de3836	1236	{
ashleymills	0:714293de3836	1237	word32 temp, *rk = aes->key;
ashleymills	0:714293de3836	1238	unsigned int i = 0;
ashleymills	0:714293de3836	1239
ashleymills	0:714293de3836	1240	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1241	aes->use_aesni = 0;
ashleymills	0:714293de3836	1242	#endif /* CYASSL_AESNI */
ashleymills	0:714293de3836	1243	aes->rounds = keylen/4 + 6;
ashleymills	0:714293de3836	1244
ashleymills	0:714293de3836	1245	XMEMCPY(rk, userKey, keylen);
ashleymills	0:714293de3836	1246	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	1247	ByteReverseWords(rk, rk, keylen);
ashleymills	0:714293de3836	1248	#endif
ashleymills	0:714293de3836	1249
ashleymills	0:714293de3836	1250	switch(keylen)
ashleymills	0:714293de3836	1251	{
ashleymills	0:714293de3836	1252	case 16:
ashleymills	0:714293de3836	1253	while (1)
ashleymills	0:714293de3836	1254	{
ashleymills	0:714293de3836	1255	temp = rk[3];
ashleymills	0:714293de3836	1256	rk[4] = rk[0] ^
ashleymills	0:714293de3836	1257	(Te[4][GETBYTE(temp, 2)] & 0xff000000) ^
ashleymills	0:714293de3836	1258	(Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1259	(Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1260	(Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^
ashleymills	0:714293de3836	1261	rcon[i];
ashleymills	0:714293de3836	1262	rk[5] = rk[1] ^ rk[4];
ashleymills	0:714293de3836	1263	rk[6] = rk[2] ^ rk[5];
ashleymills	0:714293de3836	1264	rk[7] = rk[3] ^ rk[6];
ashleymills	0:714293de3836	1265	if (++i == 10)
ashleymills	0:714293de3836	1266	break;
ashleymills	0:714293de3836	1267	rk += 4;
ashleymills	0:714293de3836	1268	}
ashleymills	0:714293de3836	1269	break;
ashleymills	0:714293de3836	1270
ashleymills	0:714293de3836	1271	case 24:
ashleymills	0:714293de3836	1272	while (1) /* for (;;) here triggers a bug in VC60 SP4 w/ Pro Pack */
ashleymills	0:714293de3836	1273	{
ashleymills	0:714293de3836	1274	temp = rk[ 5];
ashleymills	0:714293de3836	1275	rk[ 6] = rk[ 0] ^
ashleymills	0:714293de3836	1276	(Te[4][GETBYTE(temp, 2)] & 0xff000000) ^
ashleymills	0:714293de3836	1277	(Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1278	(Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1279	(Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^
ashleymills	0:714293de3836	1280	rcon[i];
ashleymills	0:714293de3836	1281	rk[ 7] = rk[ 1] ^ rk[ 6];
ashleymills	0:714293de3836	1282	rk[ 8] = rk[ 2] ^ rk[ 7];
ashleymills	0:714293de3836	1283	rk[ 9] = rk[ 3] ^ rk[ 8];
ashleymills	0:714293de3836	1284	if (++i == 8)
ashleymills	0:714293de3836	1285	break;
ashleymills	0:714293de3836	1286	rk[10] = rk[ 4] ^ rk[ 9];
ashleymills	0:714293de3836	1287	rk[11] = rk[ 5] ^ rk[10];
ashleymills	0:714293de3836	1288	rk += 6;
ashleymills	0:714293de3836	1289	}
ashleymills	0:714293de3836	1290	break;
ashleymills	0:714293de3836	1291
ashleymills	0:714293de3836	1292	case 32:
ashleymills	0:714293de3836	1293	while (1)
ashleymills	0:714293de3836	1294	{
ashleymills	0:714293de3836	1295	temp = rk[ 7];
ashleymills	0:714293de3836	1296	rk[ 8] = rk[ 0] ^
ashleymills	0:714293de3836	1297	(Te[4][GETBYTE(temp, 2)] & 0xff000000) ^
ashleymills	0:714293de3836	1298	(Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1299	(Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1300	(Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^
ashleymills	0:714293de3836	1301	rcon[i];
ashleymills	0:714293de3836	1302	rk[ 9] = rk[ 1] ^ rk[ 8];
ashleymills	0:714293de3836	1303	rk[10] = rk[ 2] ^ rk[ 9];
ashleymills	0:714293de3836	1304	rk[11] = rk[ 3] ^ rk[10];
ashleymills	0:714293de3836	1305	if (++i == 7)
ashleymills	0:714293de3836	1306	break;
ashleymills	0:714293de3836	1307	temp = rk[11];
ashleymills	0:714293de3836	1308	rk[12] = rk[ 4] ^
ashleymills	0:714293de3836	1309	(Te[4][GETBYTE(temp, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1310	(Te[4][GETBYTE(temp, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1311	(Te[4][GETBYTE(temp, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1312	(Te[4][GETBYTE(temp, 0)] & 0x000000ff);
ashleymills	0:714293de3836	1313	rk[13] = rk[ 5] ^ rk[12];
ashleymills	0:714293de3836	1314	rk[14] = rk[ 6] ^ rk[13];
ashleymills	0:714293de3836	1315	rk[15] = rk[ 7] ^ rk[14];
ashleymills	0:714293de3836	1316
ashleymills	0:714293de3836	1317	rk += 8;
ashleymills	0:714293de3836	1318	}
ashleymills	0:714293de3836	1319	break;
ashleymills	0:714293de3836	1320
ashleymills	0:714293de3836	1321	default:
ashleymills	0:714293de3836	1322	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	1323	}
ashleymills	0:714293de3836	1324
ashleymills	0:714293de3836	1325	if (dir == AES_DECRYPTION)
ashleymills	0:714293de3836	1326	{
ashleymills	0:714293de3836	1327	unsigned int j;
ashleymills	0:714293de3836	1328	rk = aes->key;
ashleymills	0:714293de3836	1329
ashleymills	0:714293de3836	1330	/* invert the order of the round keys: */
ashleymills	0:714293de3836	1331	for (i = 0, j = 4* aes->rounds; i < j; i += 4, j -= 4) {
ashleymills	0:714293de3836	1332	temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp;
ashleymills	0:714293de3836	1333	temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp;
ashleymills	0:714293de3836	1334	temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp;
ashleymills	0:714293de3836	1335	temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp;
ashleymills	0:714293de3836	1336	}
ashleymills	0:714293de3836	1337	/* apply the inverse MixColumn transform to all round keys but the
ashleymills	0:714293de3836	1338	first and the last: */
ashleymills	0:714293de3836	1339	for (i = 1; i < aes->rounds; i++) {
ashleymills	0:714293de3836	1340	rk += 4;
ashleymills	0:714293de3836	1341	rk[0] =
ashleymills	0:714293de3836	1342	Td[0][Te[4][GETBYTE(rk[0], 3)] & 0xff] ^
ashleymills	0:714293de3836	1343	Td[1][Te[4][GETBYTE(rk[0], 2)] & 0xff] ^
ashleymills	0:714293de3836	1344	Td[2][Te[4][GETBYTE(rk[0], 1)] & 0xff] ^
ashleymills	0:714293de3836	1345	Td[3][Te[4][GETBYTE(rk[0], 0)] & 0xff];
ashleymills	0:714293de3836	1346	rk[1] =
ashleymills	0:714293de3836	1347	Td[0][Te[4][GETBYTE(rk[1], 3)] & 0xff] ^
ashleymills	0:714293de3836	1348	Td[1][Te[4][GETBYTE(rk[1], 2)] & 0xff] ^
ashleymills	0:714293de3836	1349	Td[2][Te[4][GETBYTE(rk[1], 1)] & 0xff] ^
ashleymills	0:714293de3836	1350	Td[3][Te[4][GETBYTE(rk[1], 0)] & 0xff];
ashleymills	0:714293de3836	1351	rk[2] =
ashleymills	0:714293de3836	1352	Td[0][Te[4][GETBYTE(rk[2], 3)] & 0xff] ^
ashleymills	0:714293de3836	1353	Td[1][Te[4][GETBYTE(rk[2], 2)] & 0xff] ^
ashleymills	0:714293de3836	1354	Td[2][Te[4][GETBYTE(rk[2], 1)] & 0xff] ^
ashleymills	0:714293de3836	1355	Td[3][Te[4][GETBYTE(rk[2], 0)] & 0xff];
ashleymills	0:714293de3836	1356	rk[3] =
ashleymills	0:714293de3836	1357	Td[0][Te[4][GETBYTE(rk[3], 3)] & 0xff] ^
ashleymills	0:714293de3836	1358	Td[1][Te[4][GETBYTE(rk[3], 2)] & 0xff] ^
ashleymills	0:714293de3836	1359	Td[2][Te[4][GETBYTE(rk[3], 1)] & 0xff] ^
ashleymills	0:714293de3836	1360	Td[3][Te[4][GETBYTE(rk[3], 0)] & 0xff];
ashleymills	0:714293de3836	1361	}
ashleymills	0:714293de3836	1362	}
ashleymills	0:714293de3836	1363
ashleymills	0:714293de3836	1364	return AesSetIV(aes, iv);
ashleymills	0:714293de3836	1365	}
ashleymills	0:714293de3836	1366
ashleymills	0:714293de3836	1367
ashleymills	0:714293de3836	1368	int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv,
ashleymills	0:714293de3836	1369	int dir)
ashleymills	0:714293de3836	1370	{
ashleymills	0:714293de3836	1371
ashleymills	0:714293de3836	1372	if (!((keylen == 16) \|\| (keylen == 24) \|\| (keylen == 32)))
ashleymills	0:714293de3836	1373	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	1374
ashleymills	0:714293de3836	1375	#ifdef HAVE_CAVIUM
ashleymills	0:714293de3836	1376	if (aes->magic == CYASSL_AES_CAVIUM_MAGIC)
ashleymills	0:714293de3836	1377	return AesCaviumSetKey(aes, userKey, keylen, iv);
ashleymills	0:714293de3836	1378	#endif
ashleymills	0:714293de3836	1379
ashleymills	0:714293de3836	1380	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1381	if (checkAESNI == 0) {
ashleymills	0:714293de3836	1382	haveAESNI = Check_CPU_support_AES();
ashleymills	0:714293de3836	1383	checkAESNI = 1;
ashleymills	0:714293de3836	1384	}
ashleymills	0:714293de3836	1385	if (haveAESNI) {
ashleymills	0:714293de3836	1386	aes->use_aesni = 1;
ashleymills	0:714293de3836	1387	if (iv)
ashleymills	0:714293de3836	1388	XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1389	if (dir == AES_ENCRYPTION)
ashleymills	0:714293de3836	1390	return AES_set_encrypt_key(userKey, keylen * 8, aes);
ashleymills	0:714293de3836	1391	else
ashleymills	0:714293de3836	1392	return AES_set_decrypt_key(userKey, keylen * 8, aes);
ashleymills	0:714293de3836	1393	}
ashleymills	0:714293de3836	1394	#endif /* CYASSL_AESNI */
ashleymills	0:714293de3836	1395
ashleymills	0:714293de3836	1396	return AesSetKeyLocal(aes, userKey, keylen, iv, dir);
ashleymills	0:714293de3836	1397	}
ashleymills	0:714293de3836	1398
ashleymills	0:714293de3836	1399
ashleymills	0:714293de3836	1400	static void AesEncrypt(Aes* aes, const byte* inBlock, byte* outBlock)
ashleymills	0:714293de3836	1401	{
ashleymills	0:714293de3836	1402	word32 s0, s1, s2, s3;
ashleymills	0:714293de3836	1403	word32 t0, t1, t2, t3;
ashleymills	0:714293de3836	1404	word32 r = aes->rounds >> 1;
ashleymills	0:714293de3836	1405
ashleymills	0:714293de3836	1406	const word32* rk = aes->key;
ashleymills	0:714293de3836	1407	if (r > 7 \|\| r == 0) {
ashleymills	0:714293de3836	1408	CYASSL_MSG("AesEncrypt encountered improper key, set it up");
ashleymills	0:714293de3836	1409	return; /* stop instead of segfaulting, set up your keys! */
ashleymills	0:714293de3836	1410	}
ashleymills	0:714293de3836	1411	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1412	if (aes->use_aesni) {
ashleymills	0:714293de3836	1413	CYASSL_MSG("AesEncrypt encountered aesni keysetup, don't use direct");
ashleymills	0:714293de3836	1414	return; /* just stop now */
ashleymills	0:714293de3836	1415	}
ashleymills	0:714293de3836	1416	#endif
ashleymills	0:714293de3836	1417
ashleymills	0:714293de3836	1418	/*
ashleymills	0:714293de3836	1419	* map byte array block to cipher state
ashleymills	0:714293de3836	1420	* and add initial round key:
ashleymills	0:714293de3836	1421	*/
ashleymills	0:714293de3836	1422	XMEMCPY(&s0, inBlock, sizeof(s0));
ashleymills	0:714293de3836	1423	XMEMCPY(&s1, inBlock + sizeof(s0), sizeof(s1));
ashleymills	0:714293de3836	1424	XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2));
ashleymills	0:714293de3836	1425	XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3));
ashleymills	0:714293de3836	1426
ashleymills	0:714293de3836	1427	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	1428	s0 = ByteReverseWord32(s0);
ashleymills	0:714293de3836	1429	s1 = ByteReverseWord32(s1);
ashleymills	0:714293de3836	1430	s2 = ByteReverseWord32(s2);
ashleymills	0:714293de3836	1431	s3 = ByteReverseWord32(s3);
ashleymills	0:714293de3836	1432	#endif
ashleymills	0:714293de3836	1433
ashleymills	0:714293de3836	1434	s0 ^= rk[0];
ashleymills	0:714293de3836	1435	s1 ^= rk[1];
ashleymills	0:714293de3836	1436	s2 ^= rk[2];
ashleymills	0:714293de3836	1437	s3 ^= rk[3];
ashleymills	0:714293de3836	1438
ashleymills	0:714293de3836	1439	/*
ashleymills	0:714293de3836	1440	* Nr - 1 full rounds:
ashleymills	0:714293de3836	1441	*/
ashleymills	0:714293de3836	1442
ashleymills	0:714293de3836	1443	for (;;) {
ashleymills	0:714293de3836	1444	t0 =
ashleymills	0:714293de3836	1445	Te[0][GETBYTE(s0, 3)] ^
ashleymills	0:714293de3836	1446	Te[1][GETBYTE(s1, 2)] ^
ashleymills	0:714293de3836	1447	Te[2][GETBYTE(s2, 1)] ^
ashleymills	0:714293de3836	1448	Te[3][GETBYTE(s3, 0)] ^
ashleymills	0:714293de3836	1449	rk[4];
ashleymills	0:714293de3836	1450	t1 =
ashleymills	0:714293de3836	1451	Te[0][GETBYTE(s1, 3)] ^
ashleymills	0:714293de3836	1452	Te[1][GETBYTE(s2, 2)] ^
ashleymills	0:714293de3836	1453	Te[2][GETBYTE(s3, 1)] ^
ashleymills	0:714293de3836	1454	Te[3][GETBYTE(s0, 0)] ^
ashleymills	0:714293de3836	1455	rk[5];
ashleymills	0:714293de3836	1456	t2 =
ashleymills	0:714293de3836	1457	Te[0][GETBYTE(s2, 3)] ^
ashleymills	0:714293de3836	1458	Te[1][GETBYTE(s3, 2)] ^
ashleymills	0:714293de3836	1459	Te[2][GETBYTE(s0, 1)] ^
ashleymills	0:714293de3836	1460	Te[3][GETBYTE(s1, 0)] ^
ashleymills	0:714293de3836	1461	rk[6];
ashleymills	0:714293de3836	1462	t3 =
ashleymills	0:714293de3836	1463	Te[0][GETBYTE(s3, 3)] ^
ashleymills	0:714293de3836	1464	Te[1][GETBYTE(s0, 2)] ^
ashleymills	0:714293de3836	1465	Te[2][GETBYTE(s1, 1)] ^
ashleymills	0:714293de3836	1466	Te[3][GETBYTE(s2, 0)] ^
ashleymills	0:714293de3836	1467	rk[7];
ashleymills	0:714293de3836	1468
ashleymills	0:714293de3836	1469	rk += 8;
ashleymills	0:714293de3836	1470	if (--r == 0) {
ashleymills	0:714293de3836	1471	break;
ashleymills	0:714293de3836	1472	}
ashleymills	0:714293de3836	1473
ashleymills	0:714293de3836	1474	s0 =
ashleymills	0:714293de3836	1475	Te[0][GETBYTE(t0, 3)] ^
ashleymills	0:714293de3836	1476	Te[1][GETBYTE(t1, 2)] ^
ashleymills	0:714293de3836	1477	Te[2][GETBYTE(t2, 1)] ^
ashleymills	0:714293de3836	1478	Te[3][GETBYTE(t3, 0)] ^
ashleymills	0:714293de3836	1479	rk[0];
ashleymills	0:714293de3836	1480	s1 =
ashleymills	0:714293de3836	1481	Te[0][GETBYTE(t1, 3)] ^
ashleymills	0:714293de3836	1482	Te[1][GETBYTE(t2, 2)] ^
ashleymills	0:714293de3836	1483	Te[2][GETBYTE(t3, 1)] ^
ashleymills	0:714293de3836	1484	Te[3][GETBYTE(t0, 0)] ^
ashleymills	0:714293de3836	1485	rk[1];
ashleymills	0:714293de3836	1486	s2 =
ashleymills	0:714293de3836	1487	Te[0][GETBYTE(t2, 3)] ^
ashleymills	0:714293de3836	1488	Te[1][GETBYTE(t3, 2)] ^
ashleymills	0:714293de3836	1489	Te[2][GETBYTE(t0, 1)] ^
ashleymills	0:714293de3836	1490	Te[3][GETBYTE(t1, 0)] ^
ashleymills	0:714293de3836	1491	rk[2];
ashleymills	0:714293de3836	1492	s3 =
ashleymills	0:714293de3836	1493	Te[0][GETBYTE(t3, 3)] ^
ashleymills	0:714293de3836	1494	Te[1][GETBYTE(t0, 2)] ^
ashleymills	0:714293de3836	1495	Te[2][GETBYTE(t1, 1)] ^
ashleymills	0:714293de3836	1496	Te[3][GETBYTE(t2, 0)] ^
ashleymills	0:714293de3836	1497	rk[3];
ashleymills	0:714293de3836	1498	}
ashleymills	0:714293de3836	1499
ashleymills	0:714293de3836	1500	/*
ashleymills	0:714293de3836	1501	* apply last round and
ashleymills	0:714293de3836	1502	* map cipher state to byte array block:
ashleymills	0:714293de3836	1503	*/
ashleymills	0:714293de3836	1504
ashleymills	0:714293de3836	1505	s0 =
ashleymills	0:714293de3836	1506	(Te[4][GETBYTE(t0, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1507	(Te[4][GETBYTE(t1, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1508	(Te[4][GETBYTE(t2, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1509	(Te[4][GETBYTE(t3, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1510	rk[0];
ashleymills	0:714293de3836	1511	s1 =
ashleymills	0:714293de3836	1512	(Te[4][GETBYTE(t1, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1513	(Te[4][GETBYTE(t2, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1514	(Te[4][GETBYTE(t3, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1515	(Te[4][GETBYTE(t0, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1516	rk[1];
ashleymills	0:714293de3836	1517	s2 =
ashleymills	0:714293de3836	1518	(Te[4][GETBYTE(t2, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1519	(Te[4][GETBYTE(t3, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1520	(Te[4][GETBYTE(t0, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1521	(Te[4][GETBYTE(t1, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1522	rk[2];
ashleymills	0:714293de3836	1523	s3 =
ashleymills	0:714293de3836	1524	(Te[4][GETBYTE(t3, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1525	(Te[4][GETBYTE(t0, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1526	(Te[4][GETBYTE(t1, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1527	(Te[4][GETBYTE(t2, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1528	rk[3];
ashleymills	0:714293de3836	1529
ashleymills	0:714293de3836	1530	/* write out */
ashleymills	0:714293de3836	1531	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	1532	s0 = ByteReverseWord32(s0);
ashleymills	0:714293de3836	1533	s1 = ByteReverseWord32(s1);
ashleymills	0:714293de3836	1534	s2 = ByteReverseWord32(s2);
ashleymills	0:714293de3836	1535	s3 = ByteReverseWord32(s3);
ashleymills	0:714293de3836	1536	#endif
ashleymills	0:714293de3836	1537
ashleymills	0:714293de3836	1538	XMEMCPY(outBlock, &s0, sizeof(s0));
ashleymills	0:714293de3836	1539	XMEMCPY(outBlock + sizeof(s0), &s1, sizeof(s1));
ashleymills	0:714293de3836	1540	XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2));
ashleymills	0:714293de3836	1541	XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3));
ashleymills	0:714293de3836	1542	}
ashleymills	0:714293de3836	1543
ashleymills	0:714293de3836	1544
ashleymills	0:714293de3836	1545	static void AesDecrypt(Aes* aes, const byte* inBlock, byte* outBlock)
ashleymills	0:714293de3836	1546	{
ashleymills	0:714293de3836	1547	word32 s0, s1, s2, s3;
ashleymills	0:714293de3836	1548	word32 t0, t1, t2, t3;
ashleymills	0:714293de3836	1549	word32 r = aes->rounds >> 1;
ashleymills	0:714293de3836	1550
ashleymills	0:714293de3836	1551	const word32* rk = aes->key;
ashleymills	0:714293de3836	1552	if (r > 7 \|\| r == 0) {
ashleymills	0:714293de3836	1553	CYASSL_MSG("AesDecrypt encountered improper key, set it up");
ashleymills	0:714293de3836	1554	return; /* stop instead of segfaulting, set up your keys! */
ashleymills	0:714293de3836	1555	}
ashleymills	0:714293de3836	1556	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1557	if (aes->use_aesni) {
ashleymills	0:714293de3836	1558	CYASSL_MSG("AesEncrypt encountered aesni keysetup, don't use direct");
ashleymills	0:714293de3836	1559	return; /* just stop now */
ashleymills	0:714293de3836	1560	}
ashleymills	0:714293de3836	1561	#endif
ashleymills	0:714293de3836	1562
ashleymills	0:714293de3836	1563	/*
ashleymills	0:714293de3836	1564	* map byte array block to cipher state
ashleymills	0:714293de3836	1565	* and add initial round key:
ashleymills	0:714293de3836	1566	*/
ashleymills	0:714293de3836	1567	XMEMCPY(&s0, inBlock, sizeof(s0));
ashleymills	0:714293de3836	1568	XMEMCPY(&s1, inBlock + sizeof(s0), sizeof(s1));
ashleymills	0:714293de3836	1569	XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2));
ashleymills	0:714293de3836	1570	XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3));
ashleymills	0:714293de3836	1571
ashleymills	0:714293de3836	1572	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	1573	s0 = ByteReverseWord32(s0);
ashleymills	0:714293de3836	1574	s1 = ByteReverseWord32(s1);
ashleymills	0:714293de3836	1575	s2 = ByteReverseWord32(s2);
ashleymills	0:714293de3836	1576	s3 = ByteReverseWord32(s3);
ashleymills	0:714293de3836	1577	#endif
ashleymills	0:714293de3836	1578
ashleymills	0:714293de3836	1579	s0 ^= rk[0];
ashleymills	0:714293de3836	1580	s1 ^= rk[1];
ashleymills	0:714293de3836	1581	s2 ^= rk[2];
ashleymills	0:714293de3836	1582	s3 ^= rk[3];
ashleymills	0:714293de3836	1583
ashleymills	0:714293de3836	1584	/*
ashleymills	0:714293de3836	1585	* Nr - 1 full rounds:
ashleymills	0:714293de3836	1586	*/
ashleymills	0:714293de3836	1587
ashleymills	0:714293de3836	1588	for (;;) {
ashleymills	0:714293de3836	1589	t0 =
ashleymills	0:714293de3836	1590	Td[0][GETBYTE(s0, 3)] ^
ashleymills	0:714293de3836	1591	Td[1][GETBYTE(s3, 2)] ^
ashleymills	0:714293de3836	1592	Td[2][GETBYTE(s2, 1)] ^
ashleymills	0:714293de3836	1593	Td[3][GETBYTE(s1, 0)] ^
ashleymills	0:714293de3836	1594	rk[4];
ashleymills	0:714293de3836	1595	t1 =
ashleymills	0:714293de3836	1596	Td[0][GETBYTE(s1, 3)] ^
ashleymills	0:714293de3836	1597	Td[1][GETBYTE(s0, 2)] ^
ashleymills	0:714293de3836	1598	Td[2][GETBYTE(s3, 1)] ^
ashleymills	0:714293de3836	1599	Td[3][GETBYTE(s2, 0)] ^
ashleymills	0:714293de3836	1600	rk[5];
ashleymills	0:714293de3836	1601	t2 =
ashleymills	0:714293de3836	1602	Td[0][GETBYTE(s2, 3)] ^
ashleymills	0:714293de3836	1603	Td[1][GETBYTE(s1, 2)] ^
ashleymills	0:714293de3836	1604	Td[2][GETBYTE(s0, 1)] ^
ashleymills	0:714293de3836	1605	Td[3][GETBYTE(s3, 0)] ^
ashleymills	0:714293de3836	1606	rk[6];
ashleymills	0:714293de3836	1607	t3 =
ashleymills	0:714293de3836	1608	Td[0][GETBYTE(s3, 3)] ^
ashleymills	0:714293de3836	1609	Td[1][GETBYTE(s2, 2)] ^
ashleymills	0:714293de3836	1610	Td[2][GETBYTE(s1, 1)] ^
ashleymills	0:714293de3836	1611	Td[3][GETBYTE(s0, 0)] ^
ashleymills	0:714293de3836	1612	rk[7];
ashleymills	0:714293de3836	1613
ashleymills	0:714293de3836	1614	rk += 8;
ashleymills	0:714293de3836	1615	if (--r == 0) {
ashleymills	0:714293de3836	1616	break;
ashleymills	0:714293de3836	1617	}
ashleymills	0:714293de3836	1618
ashleymills	0:714293de3836	1619	s0 =
ashleymills	0:714293de3836	1620	Td[0][GETBYTE(t0, 3)] ^
ashleymills	0:714293de3836	1621	Td[1][GETBYTE(t3, 2)] ^
ashleymills	0:714293de3836	1622	Td[2][GETBYTE(t2, 1)] ^
ashleymills	0:714293de3836	1623	Td[3][GETBYTE(t1, 0)] ^
ashleymills	0:714293de3836	1624	rk[0];
ashleymills	0:714293de3836	1625	s1 =
ashleymills	0:714293de3836	1626	Td[0][GETBYTE(t1, 3)] ^
ashleymills	0:714293de3836	1627	Td[1][GETBYTE(t0, 2)] ^
ashleymills	0:714293de3836	1628	Td[2][GETBYTE(t3, 1)] ^
ashleymills	0:714293de3836	1629	Td[3][GETBYTE(t2, 0)] ^
ashleymills	0:714293de3836	1630	rk[1];
ashleymills	0:714293de3836	1631	s2 =
ashleymills	0:714293de3836	1632	Td[0][GETBYTE(t2, 3)] ^
ashleymills	0:714293de3836	1633	Td[1][GETBYTE(t1, 2)] ^
ashleymills	0:714293de3836	1634	Td[2][GETBYTE(t0, 1)] ^
ashleymills	0:714293de3836	1635	Td[3][GETBYTE(t3, 0)] ^
ashleymills	0:714293de3836	1636	rk[2];
ashleymills	0:714293de3836	1637	s3 =
ashleymills	0:714293de3836	1638	Td[0][GETBYTE(t3, 3)] ^
ashleymills	0:714293de3836	1639	Td[1][GETBYTE(t2, 2)] ^
ashleymills	0:714293de3836	1640	Td[2][GETBYTE(t1, 1)] ^
ashleymills	0:714293de3836	1641	Td[3][GETBYTE(t0, 0)] ^
ashleymills	0:714293de3836	1642	rk[3];
ashleymills	0:714293de3836	1643	}
ashleymills	0:714293de3836	1644	/*
ashleymills	0:714293de3836	1645	* apply last round and
ashleymills	0:714293de3836	1646	* map cipher state to byte array block:
ashleymills	0:714293de3836	1647	*/
ashleymills	0:714293de3836	1648	s0 =
ashleymills	0:714293de3836	1649	(Td[4][GETBYTE(t0, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1650	(Td[4][GETBYTE(t3, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1651	(Td[4][GETBYTE(t2, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1652	(Td[4][GETBYTE(t1, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1653	rk[0];
ashleymills	0:714293de3836	1654	s1 =
ashleymills	0:714293de3836	1655	(Td[4][GETBYTE(t1, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1656	(Td[4][GETBYTE(t0, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1657	(Td[4][GETBYTE(t3, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1658	(Td[4][GETBYTE(t2, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1659	rk[1];
ashleymills	0:714293de3836	1660	s2 =
ashleymills	0:714293de3836	1661	(Td[4][GETBYTE(t2, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1662	(Td[4][GETBYTE(t1, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1663	(Td[4][GETBYTE(t0, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1664	(Td[4][GETBYTE(t3, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1665	rk[2];
ashleymills	0:714293de3836	1666	s3 =
ashleymills	0:714293de3836	1667	(Td[4][GETBYTE(t3, 3)] & 0xff000000) ^
ashleymills	0:714293de3836	1668	(Td[4][GETBYTE(t2, 2)] & 0x00ff0000) ^
ashleymills	0:714293de3836	1669	(Td[4][GETBYTE(t1, 1)] & 0x0000ff00) ^
ashleymills	0:714293de3836	1670	(Td[4][GETBYTE(t0, 0)] & 0x000000ff) ^
ashleymills	0:714293de3836	1671	rk[3];
ashleymills	0:714293de3836	1672
ashleymills	0:714293de3836	1673	/* write out */
ashleymills	0:714293de3836	1674	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	1675	s0 = ByteReverseWord32(s0);
ashleymills	0:714293de3836	1676	s1 = ByteReverseWord32(s1);
ashleymills	0:714293de3836	1677	s2 = ByteReverseWord32(s2);
ashleymills	0:714293de3836	1678	s3 = ByteReverseWord32(s3);
ashleymills	0:714293de3836	1679	#endif
ashleymills	0:714293de3836	1680
ashleymills	0:714293de3836	1681	XMEMCPY(outBlock, &s0, sizeof(s0));
ashleymills	0:714293de3836	1682	XMEMCPY(outBlock + sizeof(s0), &s1, sizeof(s1));
ashleymills	0:714293de3836	1683	XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2));
ashleymills	0:714293de3836	1684	XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3));
ashleymills	0:714293de3836	1685	}
ashleymills	0:714293de3836	1686
ashleymills	0:714293de3836	1687
ashleymills	0:714293de3836	1688	int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
ashleymills	0:714293de3836	1689	{
ashleymills	0:714293de3836	1690	word32 blocks = sz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1691
ashleymills	0:714293de3836	1692	#ifdef HAVE_CAVIUM
ashleymills	0:714293de3836	1693	if (aes->magic == CYASSL_AES_CAVIUM_MAGIC)
ashleymills	0:714293de3836	1694	return AesCaviumCbcEncrypt(aes, out, in, sz);
ashleymills	0:714293de3836	1695	#endif
ashleymills	0:714293de3836	1696
ashleymills	0:714293de3836	1697	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1698	if (haveAESNI) {
ashleymills	0:714293de3836	1699	#ifdef DEBUG_AESNI
ashleymills	0:714293de3836	1700	printf("about to aes cbc encrypt\n");
ashleymills	0:714293de3836	1701	printf("in = %p\n", in);
ashleymills	0:714293de3836	1702	printf("out = %p\n", out);
ashleymills	0:714293de3836	1703	printf("aes->key = %p\n", aes->key);
ashleymills	0:714293de3836	1704	printf("aes->reg = %p\n", aes->reg);
ashleymills	0:714293de3836	1705	printf("aes->rounds = %d\n", aes->rounds);
ashleymills	0:714293de3836	1706	printf("sz = %d\n", sz);
ashleymills	0:714293de3836	1707	#endif
ashleymills	0:714293de3836	1708
ashleymills	0:714293de3836	1709	/* check alignment, decrypt doesn't need alignment */
ashleymills	0:714293de3836	1710	if ((word)in % 16) {
ashleymills	0:714293de3836	1711	#ifndef NO_CYASSL_ALLOC_ALIGN
ashleymills	0:714293de3836	1712	byte* tmp = (byte*)XMALLOC(sz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
ashleymills	0:714293de3836	1713	if (tmp == NULL) return MEMORY_E;
ashleymills	0:714293de3836	1714
ashleymills	0:714293de3836	1715	XMEMCPY(tmp, in, sz);
ashleymills	0:714293de3836	1716	AES_CBC_encrypt(tmp, tmp, (byte)aes->reg, sz, (byte)aes->key,
ashleymills	0:714293de3836	1717	aes->rounds);
ashleymills	0:714293de3836	1718	/* store iv for next call */
ashleymills	0:714293de3836	1719	XMEMCPY(aes->reg, tmp + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1720
ashleymills	0:714293de3836	1721	XMEMCPY(out, tmp, sz);
ashleymills	0:714293de3836	1722	XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER);
ashleymills	0:714293de3836	1723	return 0;
ashleymills	0:714293de3836	1724	#else
ashleymills	0:714293de3836	1725	return BAD_ALIGN_E;
ashleymills	0:714293de3836	1726	#endif
ashleymills	0:714293de3836	1727	}
ashleymills	0:714293de3836	1728
ashleymills	0:714293de3836	1729	AES_CBC_encrypt(in, out, (byte)aes->reg, sz, (byte)aes->key,
ashleymills	0:714293de3836	1730	aes->rounds);
ashleymills	0:714293de3836	1731	/* store iv for next call */
ashleymills	0:714293de3836	1732	XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1733
ashleymills	0:714293de3836	1734	return 0;
ashleymills	0:714293de3836	1735	}
ashleymills	0:714293de3836	1736	#endif
ashleymills	0:714293de3836	1737
ashleymills	0:714293de3836	1738	while (blocks--) {
ashleymills	0:714293de3836	1739	xorbuf((byte*)aes->reg, in, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1740	AesEncrypt(aes, (byte)aes->reg, (byte)aes->reg);
ashleymills	0:714293de3836	1741	XMEMCPY(out, aes->reg, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1742
ashleymills	0:714293de3836	1743	out += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1744	in += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1745	}
ashleymills	0:714293de3836	1746
ashleymills	0:714293de3836	1747	return 0;
ashleymills	0:714293de3836	1748	}
ashleymills	0:714293de3836	1749
ashleymills	0:714293de3836	1750
ashleymills	0:714293de3836	1751	int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
ashleymills	0:714293de3836	1752	{
ashleymills	0:714293de3836	1753	word32 blocks = sz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1754
ashleymills	0:714293de3836	1755	#ifdef HAVE_CAVIUM
ashleymills	0:714293de3836	1756	if (aes->magic == CYASSL_AES_CAVIUM_MAGIC)
ashleymills	0:714293de3836	1757	return AesCaviumCbcDecrypt(aes, out, in, sz);
ashleymills	0:714293de3836	1758	#endif
ashleymills	0:714293de3836	1759
ashleymills	0:714293de3836	1760	#ifdef CYASSL_AESNI
ashleymills	0:714293de3836	1761	if (haveAESNI) {
ashleymills	0:714293de3836	1762	#ifdef DEBUG_AESNI
ashleymills	0:714293de3836	1763	printf("about to aes cbc decrypt\n");
ashleymills	0:714293de3836	1764	printf("in = %p\n", in);
ashleymills	0:714293de3836	1765	printf("out = %p\n", out);
ashleymills	0:714293de3836	1766	printf("aes->key = %p\n", aes->key);
ashleymills	0:714293de3836	1767	printf("aes->reg = %p\n", aes->reg);
ashleymills	0:714293de3836	1768	printf("aes->rounds = %d\n", aes->rounds);
ashleymills	0:714293de3836	1769	printf("sz = %d\n", sz);
ashleymills	0:714293de3836	1770	#endif
ashleymills	0:714293de3836	1771
ashleymills	0:714293de3836	1772	/* if input and output same will overwrite input iv */
ashleymills	0:714293de3836	1773	XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1774	AES_CBC_decrypt(in, out, (byte)aes->reg, sz, (byte)aes->key,
ashleymills	0:714293de3836	1775	aes->rounds);
ashleymills	0:714293de3836	1776	/* store iv for next call */
ashleymills	0:714293de3836	1777	XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1778	return 0;
ashleymills	0:714293de3836	1779	}
ashleymills	0:714293de3836	1780	#endif
ashleymills	0:714293de3836	1781
ashleymills	0:714293de3836	1782	while (blocks--) {
ashleymills	0:714293de3836	1783	XMEMCPY(aes->tmp, in, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1784	AesDecrypt(aes, (byte*)aes->tmp, out);
ashleymills	0:714293de3836	1785	xorbuf(out, (byte*)aes->reg, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1786	XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1787
ashleymills	0:714293de3836	1788	out += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1789	in += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1790	}
ashleymills	0:714293de3836	1791
ashleymills	0:714293de3836	1792	return 0;
ashleymills	0:714293de3836	1793	}
ashleymills	0:714293de3836	1794
ashleymills	0:714293de3836	1795
ashleymills	0:714293de3836	1796	#ifdef CYASSL_AES_DIRECT
ashleymills	0:714293de3836	1797
ashleymills	0:714293de3836	1798	/* Allow direct access to one block encrypt */
ashleymills	0:714293de3836	1799	void AesEncryptDirect(Aes* aes, byte* out, const byte* in)
ashleymills	0:714293de3836	1800	{
ashleymills	0:714293de3836	1801	return AesEncrypt(aes, in, out);
ashleymills	0:714293de3836	1802	}
ashleymills	0:714293de3836	1803
ashleymills	0:714293de3836	1804
ashleymills	0:714293de3836	1805	/* Allow direct access to one block decrypt */
ashleymills	0:714293de3836	1806	void AesDecryptDirect(Aes* aes, byte* out, const byte* in)
ashleymills	0:714293de3836	1807	{
ashleymills	0:714293de3836	1808	return AesDecrypt(aes, in, out);
ashleymills	0:714293de3836	1809	}
ashleymills	0:714293de3836	1810
ashleymills	0:714293de3836	1811
ashleymills	0:714293de3836	1812	#endif /* CYASSL_AES_DIRECT */
ashleymills	0:714293de3836	1813
ashleymills	0:714293de3836	1814
ashleymills	0:714293de3836	1815	#if defined(CYASSL_AES_DIRECT) \|\| defined(CYASSL_AES_COUNTER)
ashleymills	0:714293de3836	1816
ashleymills	0:714293de3836	1817	/* AES-CTR and AES-DIRECT need to use this for key setup, no aesni yet */
ashleymills	0:714293de3836	1818	int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen,
ashleymills	0:714293de3836	1819	const byte* iv, int dir)
ashleymills	0:714293de3836	1820	{
ashleymills	0:714293de3836	1821	return AesSetKeyLocal(aes, userKey, keylen, iv, dir);
ashleymills	0:714293de3836	1822	}
ashleymills	0:714293de3836	1823
ashleymills	0:714293de3836	1824	#endif /* CYASSL_AES_DIRECT \|\| CYASSL_AES_COUNTER */
ashleymills	0:714293de3836	1825
ashleymills	0:714293de3836	1826
ashleymills	0:714293de3836	1827	#ifdef CYASSL_AES_COUNTER
ashleymills	0:714293de3836	1828
ashleymills	0:714293de3836	1829	/* Increment AES counter */
ashleymills	0:714293de3836	1830	static INLINE void IncrementAesCounter(byte* inOutCtr)
ashleymills	0:714293de3836	1831	{
ashleymills	0:714293de3836	1832	int i;
ashleymills	0:714293de3836	1833
ashleymills	0:714293de3836	1834	/* in network byte order so start at end and work back */
ashleymills	0:714293de3836	1835	for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) {
ashleymills	0:714293de3836	1836	if (++inOutCtr[i]) /* we're done unless we overflow */
ashleymills	0:714293de3836	1837	return;
ashleymills	0:714293de3836	1838	}
ashleymills	0:714293de3836	1839	}
ashleymills	0:714293de3836	1840
ashleymills	0:714293de3836	1841
ashleymills	0:714293de3836	1842	void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
ashleymills	0:714293de3836	1843	{
ashleymills	0:714293de3836	1844	word32 blocks = sz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1845
ashleymills	0:714293de3836	1846	while (blocks--) {
ashleymills	0:714293de3836	1847	AesEncrypt(aes, (byte*)aes->reg, out);
ashleymills	0:714293de3836	1848	IncrementAesCounter((byte*)aes->reg);
ashleymills	0:714293de3836	1849	xorbuf(out, in, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1850
ashleymills	0:714293de3836	1851	out += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1852	in += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	1853	}
ashleymills	0:714293de3836	1854	}
ashleymills	0:714293de3836	1855
ashleymills	0:714293de3836	1856	#endif /* CYASSL_AES_COUNTER */
ashleymills	0:714293de3836	1857
ashleymills	0:714293de3836	1858
ashleymills	0:714293de3836	1859	#ifdef HAVE_AESGCM
ashleymills	0:714293de3836	1860
ashleymills	0:714293de3836	1861	/*
ashleymills	0:714293de3836	1862	* The IV for AES GCM, stored in struct Aes's member reg, is comprised of
ashleymills	0:714293de3836	1863	* three parts in order:
ashleymills	0:714293de3836	1864	* 1. The implicit IV. This is generated from the PRF using the shared
ashleymills	0:714293de3836	1865	* secrets between endpoints. It is 4 bytes long.
ashleymills	0:714293de3836	1866	* 2. The explicit IV. This is set by the user of the AES. It needs to be
ashleymills	0:714293de3836	1867	* unique for each call to encrypt. The explicit IV is shared with the
ashleymills	0:714293de3836	1868	* other end of the transaction in the clear.
ashleymills	0:714293de3836	1869	* 3. The counter. Each block of data is encrypted with its own sequence
ashleymills	0:714293de3836	1870	* number counter.
ashleymills	0:714293de3836	1871	*/
ashleymills	0:714293de3836	1872
ashleymills	0:714293de3836	1873	enum {
ashleymills	0:714293de3836	1874	CTR_SZ = 4
ashleymills	0:714293de3836	1875	};
ashleymills	0:714293de3836	1876
ashleymills	0:714293de3836	1877
ashleymills	0:714293de3836	1878	static INLINE void InitGcmCounter(byte* inOutCtr)
ashleymills	0:714293de3836	1879	{
ashleymills	0:714293de3836	1880	inOutCtr[AES_BLOCK_SIZE - 4] = 0;
ashleymills	0:714293de3836	1881	inOutCtr[AES_BLOCK_SIZE - 3] = 0;
ashleymills	0:714293de3836	1882	inOutCtr[AES_BLOCK_SIZE - 2] = 0;
ashleymills	0:714293de3836	1883	inOutCtr[AES_BLOCK_SIZE - 1] = 1;
ashleymills	0:714293de3836	1884	}
ashleymills	0:714293de3836	1885
ashleymills	0:714293de3836	1886
ashleymills	0:714293de3836	1887	static INLINE void IncrementGcmCounter(byte* inOutCtr)
ashleymills	0:714293de3836	1888	{
ashleymills	0:714293de3836	1889	int i;
ashleymills	0:714293de3836	1890
ashleymills	0:714293de3836	1891	/* in network byte order so start at end and work back */
ashleymills	0:714293de3836	1892	for (i = AES_BLOCK_SIZE - 1; i >= AES_BLOCK_SIZE - CTR_SZ; i--) {
ashleymills	0:714293de3836	1893	if (++inOutCtr[i]) /* we're done unless we overflow */
ashleymills	0:714293de3836	1894	return;
ashleymills	0:714293de3836	1895	}
ashleymills	0:714293de3836	1896	}
ashleymills	0:714293de3836	1897
ashleymills	0:714293de3836	1898
ashleymills	0:714293de3836	1899	#if defined(GCM_SMALL) \|\| defined(GCM_TABLE)
ashleymills	0:714293de3836	1900
ashleymills	0:714293de3836	1901	static INLINE void FlattenSzInBits(byte* buf, word32 sz)
ashleymills	0:714293de3836	1902	{
ashleymills	0:714293de3836	1903	/* Multiply the sz by 8 */
ashleymills	0:714293de3836	1904	word32 szHi = (sz >> (8*sizeof(sz) - 3));
ashleymills	0:714293de3836	1905	sz <<= 3;
ashleymills	0:714293de3836	1906
ashleymills	0:714293de3836	1907	/* copy over the words of the sz into the destination buffer */
ashleymills	0:714293de3836	1908	buf[0] = (szHi >> 24) & 0xff;
ashleymills	0:714293de3836	1909	buf[1] = (szHi >> 16) & 0xff;
ashleymills	0:714293de3836	1910	buf[2] = (szHi >> 8) & 0xff;
ashleymills	0:714293de3836	1911	buf[3] = szHi & 0xff;
ashleymills	0:714293de3836	1912	buf[4] = (sz >> 24) & 0xff;
ashleymills	0:714293de3836	1913	buf[5] = (sz >> 16) & 0xff;
ashleymills	0:714293de3836	1914	buf[6] = (sz >> 8) & 0xff;
ashleymills	0:714293de3836	1915	buf[7] = sz & 0xff;
ashleymills	0:714293de3836	1916	}
ashleymills	0:714293de3836	1917
ashleymills	0:714293de3836	1918
ashleymills	0:714293de3836	1919	static INLINE void RIGHTSHIFTX(byte* x)
ashleymills	0:714293de3836	1920	{
ashleymills	0:714293de3836	1921	int i;
ashleymills	0:714293de3836	1922	int carryOut = 0;
ashleymills	0:714293de3836	1923	int carryIn = 0;
ashleymills	0:714293de3836	1924	int borrow = x[15] & 0x01;
ashleymills	0:714293de3836	1925
ashleymills	0:714293de3836	1926	for (i = 0; i < AES_BLOCK_SIZE; i++) {
ashleymills	0:714293de3836	1927	carryOut = x[i] & 0x01;
ashleymills	0:714293de3836	1928	x[i] = (x[i] >> 1) \| (carryIn ? 0x80 : 0);
ashleymills	0:714293de3836	1929	carryIn = carryOut;
ashleymills	0:714293de3836	1930	}
ashleymills	0:714293de3836	1931	if (borrow) x[0] ^= 0xE1;
ashleymills	0:714293de3836	1932	}
ashleymills	0:714293de3836	1933
ashleymills	0:714293de3836	1934	#endif /* defined(GCM_SMALL) \|\| defined(GCM_TABLE) */
ashleymills	0:714293de3836	1935
ashleymills	0:714293de3836	1936
ashleymills	0:714293de3836	1937	#ifdef GCM_TABLE
ashleymills	0:714293de3836	1938
ashleymills	0:714293de3836	1939	static void GenerateM0(Aes* aes)
ashleymills	0:714293de3836	1940	{
ashleymills	0:714293de3836	1941	int i, j;
ashleymills	0:714293de3836	1942	byte (*m)[AES_BLOCK_SIZE] = aes->M0;
ashleymills	0:714293de3836	1943
ashleymills	0:714293de3836	1944	XMEMCPY(m[128], aes->H, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1945
ashleymills	0:714293de3836	1946	for (i = 64; i > 0; i /= 2) {
ashleymills	0:714293de3836	1947	XMEMCPY(m[i], m[i*2], AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1948	RIGHTSHIFTX(m[i]);
ashleymills	0:714293de3836	1949	}
ashleymills	0:714293de3836	1950
ashleymills	0:714293de3836	1951	for (i = 2; i < 256; i *= 2) {
ashleymills	0:714293de3836	1952	for (j = 1; j < i; j++) {
ashleymills	0:714293de3836	1953	XMEMCPY(m[i+j], m[i], AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1954	xorbuf(m[i+j], m[j], AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1955	}
ashleymills	0:714293de3836	1956	}
ashleymills	0:714293de3836	1957
ashleymills	0:714293de3836	1958	XMEMSET(m[0], 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1959	}
ashleymills	0:714293de3836	1960
ashleymills	0:714293de3836	1961	#endif /* GCM_TABLE */
ashleymills	0:714293de3836	1962
ashleymills	0:714293de3836	1963
ashleymills	0:714293de3836	1964	void AesGcmSetKey(Aes* aes, const byte* key, word32 len)
ashleymills	0:714293de3836	1965	{
ashleymills	0:714293de3836	1966	byte iv[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	1967
ashleymills	0:714293de3836	1968	if (!((len == 16) \|\| (len == 24) \|\| (len == 32)))
ashleymills	0:714293de3836	1969	return;
ashleymills	0:714293de3836	1970
ashleymills	0:714293de3836	1971	XMEMSET(iv, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1972	AesSetKeyLocal(aes, key, len, iv, AES_ENCRYPTION);
ashleymills	0:714293de3836	1973
ashleymills	0:714293de3836	1974	AesEncrypt(aes, iv, aes->H);
ashleymills	0:714293de3836	1975	#ifdef GCM_TABLE
ashleymills	0:714293de3836	1976	GenerateM0(aes);
ashleymills	0:714293de3836	1977	#endif /* GCM_TABLE */
ashleymills	0:714293de3836	1978	}
ashleymills	0:714293de3836	1979
ashleymills	0:714293de3836	1980
ashleymills	0:714293de3836	1981	#if defined(GCM_SMALL)
ashleymills	0:714293de3836	1982
ashleymills	0:714293de3836	1983	static void GMULT(byte* X, byte* Y)
ashleymills	0:714293de3836	1984	{
ashleymills	0:714293de3836	1985	byte Z[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	1986	byte V[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	1987	int i, j;
ashleymills	0:714293de3836	1988
ashleymills	0:714293de3836	1989	XMEMSET(Z, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1990	XMEMCPY(V, X, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1991	for (i = 0; i < AES_BLOCK_SIZE; i++)
ashleymills	0:714293de3836	1992	{
ashleymills	0:714293de3836	1993	byte y = Y[i];
ashleymills	0:714293de3836	1994	for (j = 0; j < 8; j++)
ashleymills	0:714293de3836	1995	{
ashleymills	0:714293de3836	1996	if (y & 0x80) {
ashleymills	0:714293de3836	1997	xorbuf(Z, V, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	1998	}
ashleymills	0:714293de3836	1999
ashleymills	0:714293de3836	2000	RIGHTSHIFTX(V);
ashleymills	0:714293de3836	2001	y = y << 1;
ashleymills	0:714293de3836	2002	}
ashleymills	0:714293de3836	2003	}
ashleymills	0:714293de3836	2004	XMEMCPY(X, Z, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2005	}
ashleymills	0:714293de3836	2006
ashleymills	0:714293de3836	2007
ashleymills	0:714293de3836	2008	static void GHASH(Aes* aes, const byte* a, word32 aSz,
ashleymills	0:714293de3836	2009	const byte* c, word32 cSz, byte* s, word32 sSz)
ashleymills	0:714293de3836	2010	{
ashleymills	0:714293de3836	2011	byte x[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2012	byte scratch[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2013	word32 blocks, partial;
ashleymills	0:714293de3836	2014	byte* h = aes->H;
ashleymills	0:714293de3836	2015
ashleymills	0:714293de3836	2016	XMEMSET(x, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2017
ashleymills	0:714293de3836	2018	/* Hash in A, the Additional Authentication Data */
ashleymills	0:714293de3836	2019	if (aSz != 0 && a != NULL) {
ashleymills	0:714293de3836	2020	blocks = aSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2021	partial = aSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2022	while (blocks--) {
ashleymills	0:714293de3836	2023	xorbuf(x, a, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2024	GMULT(x, h);
ashleymills	0:714293de3836	2025	a += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2026	}
ashleymills	0:714293de3836	2027	if (partial != 0) {
ashleymills	0:714293de3836	2028	XMEMSET(scratch, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2029	XMEMCPY(scratch, a, partial);
ashleymills	0:714293de3836	2030	xorbuf(x, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2031	GMULT(x, h);
ashleymills	0:714293de3836	2032	}
ashleymills	0:714293de3836	2033	}
ashleymills	0:714293de3836	2034
ashleymills	0:714293de3836	2035	/* Hash in C, the Ciphertext */
ashleymills	0:714293de3836	2036	if (cSz != 0 && c != NULL) {
ashleymills	0:714293de3836	2037	blocks = cSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2038	partial = cSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2039	while (blocks--) {
ashleymills	0:714293de3836	2040	xorbuf(x, c, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2041	GMULT(x, h);
ashleymills	0:714293de3836	2042	c += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2043	}
ashleymills	0:714293de3836	2044	if (partial != 0) {
ashleymills	0:714293de3836	2045	XMEMSET(scratch, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2046	XMEMCPY(scratch, c, partial);
ashleymills	0:714293de3836	2047	xorbuf(x, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2048	GMULT(x, h);
ashleymills	0:714293de3836	2049	}
ashleymills	0:714293de3836	2050	}
ashleymills	0:714293de3836	2051
ashleymills	0:714293de3836	2052	/* Hash in the lengths of A and C in bits */
ashleymills	0:714293de3836	2053	FlattenSzInBits(&scratch[0], aSz);
ashleymills	0:714293de3836	2054	FlattenSzInBits(&scratch[8], cSz);
ashleymills	0:714293de3836	2055	xorbuf(x, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2056	GMULT(x, h);
ashleymills	0:714293de3836	2057
ashleymills	0:714293de3836	2058	/* Copy the result into s. */
ashleymills	0:714293de3836	2059	XMEMCPY(s, x, sSz);
ashleymills	0:714293de3836	2060	}
ashleymills	0:714293de3836	2061
ashleymills	0:714293de3836	2062	/* end GCM_SMALL */
ashleymills	0:714293de3836	2063	#elif defined(GCM_TABLE)
ashleymills	0:714293de3836	2064
ashleymills	0:714293de3836	2065	static const byte R[256][2] = {
ashleymills	0:714293de3836	2066	{0x00, 0x00}, {0x01, 0xc2}, {0x03, 0x84}, {0x02, 0x46},
ashleymills	0:714293de3836	2067	{0x07, 0x08}, {0x06, 0xca}, {0x04, 0x8c}, {0x05, 0x4e},
ashleymills	0:714293de3836	2068	{0x0e, 0x10}, {0x0f, 0xd2}, {0x0d, 0x94}, {0x0c, 0x56},
ashleymills	0:714293de3836	2069	{0x09, 0x18}, {0x08, 0xda}, {0x0a, 0x9c}, {0x0b, 0x5e},
ashleymills	0:714293de3836	2070	{0x1c, 0x20}, {0x1d, 0xe2}, {0x1f, 0xa4}, {0x1e, 0x66},
ashleymills	0:714293de3836	2071	{0x1b, 0x28}, {0x1a, 0xea}, {0x18, 0xac}, {0x19, 0x6e},
ashleymills	0:714293de3836	2072	{0x12, 0x30}, {0x13, 0xf2}, {0x11, 0xb4}, {0x10, 0x76},
ashleymills	0:714293de3836	2073	{0x15, 0x38}, {0x14, 0xfa}, {0x16, 0xbc}, {0x17, 0x7e},
ashleymills	0:714293de3836	2074	{0x38, 0x40}, {0x39, 0x82}, {0x3b, 0xc4}, {0x3a, 0x06},
ashleymills	0:714293de3836	2075	{0x3f, 0x48}, {0x3e, 0x8a}, {0x3c, 0xcc}, {0x3d, 0x0e},
ashleymills	0:714293de3836	2076	{0x36, 0x50}, {0x37, 0x92}, {0x35, 0xd4}, {0x34, 0x16},
ashleymills	0:714293de3836	2077	{0x31, 0x58}, {0x30, 0x9a}, {0x32, 0xdc}, {0x33, 0x1e},
ashleymills	0:714293de3836	2078	{0x24, 0x60}, {0x25, 0xa2}, {0x27, 0xe4}, {0x26, 0x26},
ashleymills	0:714293de3836	2079	{0x23, 0x68}, {0x22, 0xaa}, {0x20, 0xec}, {0x21, 0x2e},
ashleymills	0:714293de3836	2080	{0x2a, 0x70}, {0x2b, 0xb2}, {0x29, 0xf4}, {0x28, 0x36},
ashleymills	0:714293de3836	2081	{0x2d, 0x78}, {0x2c, 0xba}, {0x2e, 0xfc}, {0x2f, 0x3e},
ashleymills	0:714293de3836	2082	{0x70, 0x80}, {0x71, 0x42}, {0x73, 0x04}, {0x72, 0xc6},
ashleymills	0:714293de3836	2083	{0x77, 0x88}, {0x76, 0x4a}, {0x74, 0x0c}, {0x75, 0xce},
ashleymills	0:714293de3836	2084	{0x7e, 0x90}, {0x7f, 0x52}, {0x7d, 0x14}, {0x7c, 0xd6},
ashleymills	0:714293de3836	2085	{0x79, 0x98}, {0x78, 0x5a}, {0x7a, 0x1c}, {0x7b, 0xde},
ashleymills	0:714293de3836	2086	{0x6c, 0xa0}, {0x6d, 0x62}, {0x6f, 0x24}, {0x6e, 0xe6},
ashleymills	0:714293de3836	2087	{0x6b, 0xa8}, {0x6a, 0x6a}, {0x68, 0x2c}, {0x69, 0xee},
ashleymills	0:714293de3836	2088	{0x62, 0xb0}, {0x63, 0x72}, {0x61, 0x34}, {0x60, 0xf6},
ashleymills	0:714293de3836	2089	{0x65, 0xb8}, {0x64, 0x7a}, {0x66, 0x3c}, {0x67, 0xfe},
ashleymills	0:714293de3836	2090	{0x48, 0xc0}, {0x49, 0x02}, {0x4b, 0x44}, {0x4a, 0x86},
ashleymills	0:714293de3836	2091	{0x4f, 0xc8}, {0x4e, 0x0a}, {0x4c, 0x4c}, {0x4d, 0x8e},
ashleymills	0:714293de3836	2092	{0x46, 0xd0}, {0x47, 0x12}, {0x45, 0x54}, {0x44, 0x96},
ashleymills	0:714293de3836	2093	{0x41, 0xd8}, {0x40, 0x1a}, {0x42, 0x5c}, {0x43, 0x9e},
ashleymills	0:714293de3836	2094	{0x54, 0xe0}, {0x55, 0x22}, {0x57, 0x64}, {0x56, 0xa6},
ashleymills	0:714293de3836	2095	{0x53, 0xe8}, {0x52, 0x2a}, {0x50, 0x6c}, {0x51, 0xae},
ashleymills	0:714293de3836	2096	{0x5a, 0xf0}, {0x5b, 0x32}, {0x59, 0x74}, {0x58, 0xb6},
ashleymills	0:714293de3836	2097	{0x5d, 0xf8}, {0x5c, 0x3a}, {0x5e, 0x7c}, {0x5f, 0xbe},
ashleymills	0:714293de3836	2098	{0xe1, 0x00}, {0xe0, 0xc2}, {0xe2, 0x84}, {0xe3, 0x46},
ashleymills	0:714293de3836	2099	{0xe6, 0x08}, {0xe7, 0xca}, {0xe5, 0x8c}, {0xe4, 0x4e},
ashleymills	0:714293de3836	2100	{0xef, 0x10}, {0xee, 0xd2}, {0xec, 0x94}, {0xed, 0x56},
ashleymills	0:714293de3836	2101	{0xe8, 0x18}, {0xe9, 0xda}, {0xeb, 0x9c}, {0xea, 0x5e},
ashleymills	0:714293de3836	2102	{0xfd, 0x20}, {0xfc, 0xe2}, {0xfe, 0xa4}, {0xff, 0x66},
ashleymills	0:714293de3836	2103	{0xfa, 0x28}, {0xfb, 0xea}, {0xf9, 0xac}, {0xf8, 0x6e},
ashleymills	0:714293de3836	2104	{0xf3, 0x30}, {0xf2, 0xf2}, {0xf0, 0xb4}, {0xf1, 0x76},
ashleymills	0:714293de3836	2105	{0xf4, 0x38}, {0xf5, 0xfa}, {0xf7, 0xbc}, {0xf6, 0x7e},
ashleymills	0:714293de3836	2106	{0xd9, 0x40}, {0xd8, 0x82}, {0xda, 0xc4}, {0xdb, 0x06},
ashleymills	0:714293de3836	2107	{0xde, 0x48}, {0xdf, 0x8a}, {0xdd, 0xcc}, {0xdc, 0x0e},
ashleymills	0:714293de3836	2108	{0xd7, 0x50}, {0xd6, 0x92}, {0xd4, 0xd4}, {0xd5, 0x16},
ashleymills	0:714293de3836	2109	{0xd0, 0x58}, {0xd1, 0x9a}, {0xd3, 0xdc}, {0xd2, 0x1e},
ashleymills	0:714293de3836	2110	{0xc5, 0x60}, {0xc4, 0xa2}, {0xc6, 0xe4}, {0xc7, 0x26},
ashleymills	0:714293de3836	2111	{0xc2, 0x68}, {0xc3, 0xaa}, {0xc1, 0xec}, {0xc0, 0x2e},
ashleymills	0:714293de3836	2112	{0xcb, 0x70}, {0xca, 0xb2}, {0xc8, 0xf4}, {0xc9, 0x36},
ashleymills	0:714293de3836	2113	{0xcc, 0x78}, {0xcd, 0xba}, {0xcf, 0xfc}, {0xce, 0x3e},
ashleymills	0:714293de3836	2114	{0x91, 0x80}, {0x90, 0x42}, {0x92, 0x04}, {0x93, 0xc6},
ashleymills	0:714293de3836	2115	{0x96, 0x88}, {0x97, 0x4a}, {0x95, 0x0c}, {0x94, 0xce},
ashleymills	0:714293de3836	2116	{0x9f, 0x90}, {0x9e, 0x52}, {0x9c, 0x14}, {0x9d, 0xd6},
ashleymills	0:714293de3836	2117	{0x98, 0x98}, {0x99, 0x5a}, {0x9b, 0x1c}, {0x9a, 0xde},
ashleymills	0:714293de3836	2118	{0x8d, 0xa0}, {0x8c, 0x62}, {0x8e, 0x24}, {0x8f, 0xe6},
ashleymills	0:714293de3836	2119	{0x8a, 0xa8}, {0x8b, 0x6a}, {0x89, 0x2c}, {0x88, 0xee},
ashleymills	0:714293de3836	2120	{0x83, 0xb0}, {0x82, 0x72}, {0x80, 0x34}, {0x81, 0xf6},
ashleymills	0:714293de3836	2121	{0x84, 0xb8}, {0x85, 0x7a}, {0x87, 0x3c}, {0x86, 0xfe},
ashleymills	0:714293de3836	2122	{0xa9, 0xc0}, {0xa8, 0x02}, {0xaa, 0x44}, {0xab, 0x86},
ashleymills	0:714293de3836	2123	{0xae, 0xc8}, {0xaf, 0x0a}, {0xad, 0x4c}, {0xac, 0x8e},
ashleymills	0:714293de3836	2124	{0xa7, 0xd0}, {0xa6, 0x12}, {0xa4, 0x54}, {0xa5, 0x96},
ashleymills	0:714293de3836	2125	{0xa0, 0xd8}, {0xa1, 0x1a}, {0xa3, 0x5c}, {0xa2, 0x9e},
ashleymills	0:714293de3836	2126	{0xb5, 0xe0}, {0xb4, 0x22}, {0xb6, 0x64}, {0xb7, 0xa6},
ashleymills	0:714293de3836	2127	{0xb2, 0xe8}, {0xb3, 0x2a}, {0xb1, 0x6c}, {0xb0, 0xae},
ashleymills	0:714293de3836	2128	{0xbb, 0xf0}, {0xba, 0x32}, {0xb8, 0x74}, {0xb9, 0xb6},
ashleymills	0:714293de3836	2129	{0xbc, 0xf8}, {0xbd, 0x3a}, {0xbf, 0x7c}, {0xbe, 0xbe} };
ashleymills	0:714293de3836	2130
ashleymills	0:714293de3836	2131
ashleymills	0:714293de3836	2132	static void GMULT(byte *x, byte m[256][AES_BLOCK_SIZE])
ashleymills	0:714293de3836	2133	{
ashleymills	0:714293de3836	2134	int i, j;
ashleymills	0:714293de3836	2135	byte Z[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2136	byte a;
ashleymills	0:714293de3836	2137
ashleymills	0:714293de3836	2138	XMEMSET(Z, 0, sizeof(Z));
ashleymills	0:714293de3836	2139
ashleymills	0:714293de3836	2140	for (i = 15; i > 0; i--) {
ashleymills	0:714293de3836	2141	xorbuf(Z, m[x[i]], AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2142	a = Z[15];
ashleymills	0:714293de3836	2143
ashleymills	0:714293de3836	2144	for (j = 15; j > 0; j--) {
ashleymills	0:714293de3836	2145	Z[j] = Z[j-1];
ashleymills	0:714293de3836	2146	}
ashleymills	0:714293de3836	2147
ashleymills	0:714293de3836	2148	Z[0] = R[a][0];
ashleymills	0:714293de3836	2149	Z[1] ^= R[a][1];
ashleymills	0:714293de3836	2150	}
ashleymills	0:714293de3836	2151	xorbuf(Z, m[x[0]], AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2152
ashleymills	0:714293de3836	2153	XMEMCPY(x, Z, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2154	}
ashleymills	0:714293de3836	2155
ashleymills	0:714293de3836	2156
ashleymills	0:714293de3836	2157	static void GHASH(Aes* aes, const byte* a, word32 aSz,
ashleymills	0:714293de3836	2158	const byte* c, word32 cSz, byte* s, word32 sSz)
ashleymills	0:714293de3836	2159	{
ashleymills	0:714293de3836	2160	byte x[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2161	byte scratch[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2162	word32 blocks, partial;
ashleymills	0:714293de3836	2163
ashleymills	0:714293de3836	2164	XMEMSET(x, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2165
ashleymills	0:714293de3836	2166	/* Hash in A, the Additional Authentication Data */
ashleymills	0:714293de3836	2167	if (aSz != 0 && a != NULL) {
ashleymills	0:714293de3836	2168	blocks = aSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2169	partial = aSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2170	while (blocks--) {
ashleymills	0:714293de3836	2171	xorbuf(x, a, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2172	GMULT(x, aes->M0);
ashleymills	0:714293de3836	2173	a += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2174	}
ashleymills	0:714293de3836	2175	if (partial != 0) {
ashleymills	0:714293de3836	2176	XMEMSET(scratch, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2177	XMEMCPY(scratch, a, partial);
ashleymills	0:714293de3836	2178	xorbuf(x, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2179	GMULT(x, aes->M0);
ashleymills	0:714293de3836	2180	}
ashleymills	0:714293de3836	2181	}
ashleymills	0:714293de3836	2182
ashleymills	0:714293de3836	2183	/* Hash in C, the Ciphertext */
ashleymills	0:714293de3836	2184	if (cSz != 0 && c != NULL) {
ashleymills	0:714293de3836	2185	blocks = cSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2186	partial = cSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2187	while (blocks--) {
ashleymills	0:714293de3836	2188	xorbuf(x, c, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2189	GMULT(x, aes->M0);
ashleymills	0:714293de3836	2190	c += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2191	}
ashleymills	0:714293de3836	2192	if (partial != 0) {
ashleymills	0:714293de3836	2193	XMEMSET(scratch, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2194	XMEMCPY(scratch, c, partial);
ashleymills	0:714293de3836	2195	xorbuf(x, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2196	GMULT(x, aes->M0);
ashleymills	0:714293de3836	2197	}
ashleymills	0:714293de3836	2198	}
ashleymills	0:714293de3836	2199
ashleymills	0:714293de3836	2200	/* Hash in the lengths of A and C in bits */
ashleymills	0:714293de3836	2201	FlattenSzInBits(&scratch[0], aSz);
ashleymills	0:714293de3836	2202	FlattenSzInBits(&scratch[8], cSz);
ashleymills	0:714293de3836	2203	xorbuf(x, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2204	GMULT(x, aes->M0);
ashleymills	0:714293de3836	2205
ashleymills	0:714293de3836	2206	/* Copy the result into s. */
ashleymills	0:714293de3836	2207	XMEMCPY(s, x, sSz);
ashleymills	0:714293de3836	2208	}
ashleymills	0:714293de3836	2209
ashleymills	0:714293de3836	2210	/* end GCM_TABLE */
ashleymills	0:714293de3836	2211	#elif defined(WORD64_AVAILABLE) && !defined(GCM_WORD32)
ashleymills	0:714293de3836	2212
ashleymills	0:714293de3836	2213	static void GMULT(word64* X, word64* Y)
ashleymills	0:714293de3836	2214	{
ashleymills	0:714293de3836	2215	word64 Z[2] = {0,0};
ashleymills	0:714293de3836	2216	word64 V[2] ;
ashleymills	0:714293de3836	2217	int i, j;
ashleymills	0:714293de3836	2218	V[0] = X[0] ; V[1] = X[1] ;
ashleymills	0:714293de3836	2219
ashleymills	0:714293de3836	2220	for (i = 0; i < 2; i++)
ashleymills	0:714293de3836	2221	{
ashleymills	0:714293de3836	2222	word64 y = Y[i];
ashleymills	0:714293de3836	2223	for (j = 0; j < 64; j++)
ashleymills	0:714293de3836	2224	{
ashleymills	0:714293de3836	2225	if (y & 0x8000000000000000) {
ashleymills	0:714293de3836	2226	Z[0] ^= V[0];
ashleymills	0:714293de3836	2227	Z[1] ^= V[1];
ashleymills	0:714293de3836	2228	}
ashleymills	0:714293de3836	2229
ashleymills	0:714293de3836	2230	if (V[1] & 0x0000000000000001) {
ashleymills	0:714293de3836	2231	V[1] >>= 1;
ashleymills	0:714293de3836	2232	V[1] \|= ((V[0] & 0x0000000000000001) ? 0x8000000000000000 : 0);
ashleymills	0:714293de3836	2233	V[0] >>= 1;
ashleymills	0:714293de3836	2234	V[0] ^= 0xE100000000000000;
ashleymills	0:714293de3836	2235	}
ashleymills	0:714293de3836	2236	else {
ashleymills	0:714293de3836	2237	V[1] >>= 1;
ashleymills	0:714293de3836	2238	V[1] \|= ((V[0] & 0x0000000000000001) ? 0x8000000000000000 : 0);
ashleymills	0:714293de3836	2239	V[0] >>= 1;
ashleymills	0:714293de3836	2240	}
ashleymills	0:714293de3836	2241	y <<= 1;
ashleymills	0:714293de3836	2242	}
ashleymills	0:714293de3836	2243	}
ashleymills	0:714293de3836	2244	X[0] = Z[0];
ashleymills	0:714293de3836	2245	X[1] = Z[1];
ashleymills	0:714293de3836	2246	}
ashleymills	0:714293de3836	2247
ashleymills	0:714293de3836	2248
ashleymills	0:714293de3836	2249	static void GHASH(Aes* aes, const byte* a, word32 aSz,
ashleymills	0:714293de3836	2250	const byte* c, word32 cSz, byte* s, word32 sSz)
ashleymills	0:714293de3836	2251	{
ashleymills	0:714293de3836	2252	word64 x[2] = {0,0};
ashleymills	0:714293de3836	2253	word32 blocks, partial;
ashleymills	0:714293de3836	2254	word64 bigH[2];
ashleymills	0:714293de3836	2255
ashleymills	0:714293de3836	2256	XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2257	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2258	ByteReverseWords64(bigH, bigH, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2259	#endif
ashleymills	0:714293de3836	2260
ashleymills	0:714293de3836	2261	/* Hash in A, the Additional Authentication Data */
ashleymills	0:714293de3836	2262	if (aSz != 0 && a != NULL) {
ashleymills	0:714293de3836	2263	word64 bigA[2];
ashleymills	0:714293de3836	2264	blocks = aSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2265	partial = aSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2266	while (blocks--) {
ashleymills	0:714293de3836	2267	XMEMCPY(bigA, a, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2268	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2269	ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2270	#endif
ashleymills	0:714293de3836	2271	x[0] ^= bigA[0];
ashleymills	0:714293de3836	2272	x[1] ^= bigA[1];
ashleymills	0:714293de3836	2273	GMULT(x, bigH);
ashleymills	0:714293de3836	2274	a += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2275	}
ashleymills	0:714293de3836	2276	if (partial != 0) {
ashleymills	0:714293de3836	2277	XMEMSET(bigA, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2278	XMEMCPY(bigA, a, partial);
ashleymills	0:714293de3836	2279	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2280	ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2281	#endif
ashleymills	0:714293de3836	2282	x[0] ^= bigA[0];
ashleymills	0:714293de3836	2283	x[1] ^= bigA[1];
ashleymills	0:714293de3836	2284	GMULT(x, bigH);
ashleymills	0:714293de3836	2285	}
ashleymills	0:714293de3836	2286	}
ashleymills	0:714293de3836	2287
ashleymills	0:714293de3836	2288	/* Hash in C, the Ciphertext */
ashleymills	0:714293de3836	2289	if (cSz != 0 && c != NULL) {
ashleymills	0:714293de3836	2290	word64 bigC[2];
ashleymills	0:714293de3836	2291	blocks = cSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2292	partial = cSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2293	while (blocks--) {
ashleymills	0:714293de3836	2294	XMEMCPY(bigC, c, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2295	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2296	ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2297	#endif
ashleymills	0:714293de3836	2298	x[0] ^= bigC[0];
ashleymills	0:714293de3836	2299	x[1] ^= bigC[1];
ashleymills	0:714293de3836	2300	GMULT(x, bigH);
ashleymills	0:714293de3836	2301	c += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2302	}
ashleymills	0:714293de3836	2303	if (partial != 0) {
ashleymills	0:714293de3836	2304	XMEMSET(bigC, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2305	XMEMCPY(bigC, c, partial);
ashleymills	0:714293de3836	2306	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2307	ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2308	#endif
ashleymills	0:714293de3836	2309	x[0] ^= bigC[0];
ashleymills	0:714293de3836	2310	x[1] ^= bigC[1];
ashleymills	0:714293de3836	2311	GMULT(x, bigH);
ashleymills	0:714293de3836	2312	}
ashleymills	0:714293de3836	2313	}
ashleymills	0:714293de3836	2314
ashleymills	0:714293de3836	2315	/* Hash in the lengths in bits of A and C */
ashleymills	0:714293de3836	2316	{
ashleymills	0:714293de3836	2317	word64 len[2] ;
ashleymills	0:714293de3836	2318	len[0] = aSz ; len[1] = cSz;
ashleymills	0:714293de3836	2319
ashleymills	0:714293de3836	2320	/* Lengths are in bytes. Convert to bits. */
ashleymills	0:714293de3836	2321	len[0] *= 8;
ashleymills	0:714293de3836	2322	len[1] *= 8;
ashleymills	0:714293de3836	2323
ashleymills	0:714293de3836	2324	x[0] ^= len[0];
ashleymills	0:714293de3836	2325	x[1] ^= len[1];
ashleymills	0:714293de3836	2326	GMULT(x, bigH);
ashleymills	0:714293de3836	2327	}
ashleymills	0:714293de3836	2328	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2329	ByteReverseWords64(x, x, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2330	#endif
ashleymills	0:714293de3836	2331	XMEMCPY(s, x, sSz);
ashleymills	0:714293de3836	2332	}
ashleymills	0:714293de3836	2333
ashleymills	0:714293de3836	2334	/* end defined(WORD64_AVAILABLE) && !defined(GCM_WORD32) */
ashleymills	0:714293de3836	2335	#else /* GCM_WORD32 */
ashleymills	0:714293de3836	2336
ashleymills	0:714293de3836	2337	static void GMULT(word32* X, word32* Y)
ashleymills	0:714293de3836	2338	{
ashleymills	0:714293de3836	2339	word32 Z[4] = {0,0,0,0};
ashleymills	0:714293de3836	2340	word32 V[4] ;
ashleymills	0:714293de3836	2341	int i, j;
ashleymills	0:714293de3836	2342
ashleymills	0:714293de3836	2343	V[0] = X[0]; V[1] = X[1]; V[2] = X[2]; V[3] = X[3];
ashleymills	0:714293de3836	2344
ashleymills	0:714293de3836	2345	for (i = 0; i < 4; i++)
ashleymills	0:714293de3836	2346	{
ashleymills	0:714293de3836	2347	word32 y = Y[i];
ashleymills	0:714293de3836	2348	for (j = 0; j < 32; j++)
ashleymills	0:714293de3836	2349	{
ashleymills	0:714293de3836	2350	if (y & 0x80000000) {
ashleymills	0:714293de3836	2351	Z[0] ^= V[0];
ashleymills	0:714293de3836	2352	Z[1] ^= V[1];
ashleymills	0:714293de3836	2353	Z[2] ^= V[2];
ashleymills	0:714293de3836	2354	Z[3] ^= V[3];
ashleymills	0:714293de3836	2355	}
ashleymills	0:714293de3836	2356
ashleymills	0:714293de3836	2357	if (V[3] & 0x00000001) {
ashleymills	0:714293de3836	2358	V[3] >>= 1;
ashleymills	0:714293de3836	2359	V[3] \|= ((V[2] & 0x00000001) ? 0x80000000 : 0);
ashleymills	0:714293de3836	2360	V[2] >>= 1;
ashleymills	0:714293de3836	2361	V[2] \|= ((V[1] & 0x00000001) ? 0x80000000 : 0);
ashleymills	0:714293de3836	2362	V[1] >>= 1;
ashleymills	0:714293de3836	2363	V[1] \|= ((V[0] & 0x00000001) ? 0x80000000 : 0);
ashleymills	0:714293de3836	2364	V[0] >>= 1;
ashleymills	0:714293de3836	2365	V[0] ^= 0xE1000000;
ashleymills	0:714293de3836	2366	} else {
ashleymills	0:714293de3836	2367	V[3] >>= 1;
ashleymills	0:714293de3836	2368	V[3] \|= ((V[2] & 0x00000001) ? 0x80000000 : 0);
ashleymills	0:714293de3836	2369	V[2] >>= 1;
ashleymills	0:714293de3836	2370	V[2] \|= ((V[1] & 0x00000001) ? 0x80000000 : 0);
ashleymills	0:714293de3836	2371	V[1] >>= 1;
ashleymills	0:714293de3836	2372	V[1] \|= ((V[0] & 0x00000001) ? 0x80000000 : 0);
ashleymills	0:714293de3836	2373	V[0] >>= 1;
ashleymills	0:714293de3836	2374	}
ashleymills	0:714293de3836	2375	y <<= 1;
ashleymills	0:714293de3836	2376	}
ashleymills	0:714293de3836	2377	}
ashleymills	0:714293de3836	2378	X[0] = Z[0];
ashleymills	0:714293de3836	2379	X[1] = Z[1];
ashleymills	0:714293de3836	2380	X[2] = Z[2];
ashleymills	0:714293de3836	2381	X[3] = Z[3];
ashleymills	0:714293de3836	2382	}
ashleymills	0:714293de3836	2383
ashleymills	0:714293de3836	2384
ashleymills	0:714293de3836	2385	static void GHASH(Aes* aes, const byte* a, word32 aSz,
ashleymills	0:714293de3836	2386	const byte* c, word32 cSz, byte* s, word32 sSz)
ashleymills	0:714293de3836	2387	{
ashleymills	0:714293de3836	2388	word32 x[4] = {0,0,0,0};
ashleymills	0:714293de3836	2389	word32 blocks, partial;
ashleymills	0:714293de3836	2390	word32 bigH[4];
ashleymills	0:714293de3836	2391
ashleymills	0:714293de3836	2392	XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2393	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2394	ByteReverseWords(bigH, bigH, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2395	#endif
ashleymills	0:714293de3836	2396
ashleymills	0:714293de3836	2397	/* Hash in A, the Additional Authentication Data */
ashleymills	0:714293de3836	2398	if (aSz != 0 && a != NULL) {
ashleymills	0:714293de3836	2399	word32 bigA[4];
ashleymills	0:714293de3836	2400	blocks = aSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2401	partial = aSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2402	while (blocks--) {
ashleymills	0:714293de3836	2403	XMEMCPY(bigA, a, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2404	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2405	ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2406	#endif
ashleymills	0:714293de3836	2407	x[0] ^= bigA[0];
ashleymills	0:714293de3836	2408	x[1] ^= bigA[1];
ashleymills	0:714293de3836	2409	x[2] ^= bigA[2];
ashleymills	0:714293de3836	2410	x[3] ^= bigA[3];
ashleymills	0:714293de3836	2411	GMULT(x, bigH);
ashleymills	0:714293de3836	2412	a += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2413	}
ashleymills	0:714293de3836	2414	if (partial != 0) {
ashleymills	0:714293de3836	2415	XMEMSET(bigA, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2416	XMEMCPY(bigA, a, partial);
ashleymills	0:714293de3836	2417	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2418	ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2419	#endif
ashleymills	0:714293de3836	2420	x[0] ^= bigA[0];
ashleymills	0:714293de3836	2421	x[1] ^= bigA[1];
ashleymills	0:714293de3836	2422	x[2] ^= bigA[2];
ashleymills	0:714293de3836	2423	x[3] ^= bigA[3];
ashleymills	0:714293de3836	2424	GMULT(x, bigH);
ashleymills	0:714293de3836	2425	}
ashleymills	0:714293de3836	2426	}
ashleymills	0:714293de3836	2427
ashleymills	0:714293de3836	2428	/* Hash in C, the Ciphertext */
ashleymills	0:714293de3836	2429	if (cSz != 0 && c != NULL) {
ashleymills	0:714293de3836	2430	word32 bigC[4];
ashleymills	0:714293de3836	2431	blocks = cSz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2432	partial = cSz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2433	while (blocks--) {
ashleymills	0:714293de3836	2434	XMEMCPY(bigC, c, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2435	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2436	ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2437	#endif
ashleymills	0:714293de3836	2438	x[0] ^= bigC[0];
ashleymills	0:714293de3836	2439	x[1] ^= bigC[1];
ashleymills	0:714293de3836	2440	x[2] ^= bigC[2];
ashleymills	0:714293de3836	2441	x[3] ^= bigC[3];
ashleymills	0:714293de3836	2442	GMULT(x, bigH);
ashleymills	0:714293de3836	2443	c += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2444	}
ashleymills	0:714293de3836	2445	if (partial != 0) {
ashleymills	0:714293de3836	2446	XMEMSET(bigC, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2447	XMEMCPY(bigC, c, partial);
ashleymills	0:714293de3836	2448	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2449	ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2450	#endif
ashleymills	0:714293de3836	2451	x[0] ^= bigC[0];
ashleymills	0:714293de3836	2452	x[1] ^= bigC[1];
ashleymills	0:714293de3836	2453	x[2] ^= bigC[2];
ashleymills	0:714293de3836	2454	x[3] ^= bigC[3];
ashleymills	0:714293de3836	2455	GMULT(x, bigH);
ashleymills	0:714293de3836	2456	}
ashleymills	0:714293de3836	2457	}
ashleymills	0:714293de3836	2458
ashleymills	0:714293de3836	2459	/* Hash in the lengths in bits of A and C */
ashleymills	0:714293de3836	2460	{
ashleymills	0:714293de3836	2461	word32 len[4];
ashleymills	0:714293de3836	2462
ashleymills	0:714293de3836	2463	/* Lengths are in bytes. Convert to bits. */
ashleymills	0:714293de3836	2464	len[0] = (aSz >> (8*sizeof(aSz) - 3));
ashleymills	0:714293de3836	2465	len[1] = aSz << 3;
ashleymills	0:714293de3836	2466	len[2] = (cSz >> (8*sizeof(cSz) - 3));
ashleymills	0:714293de3836	2467	len[3] = cSz << 3;
ashleymills	0:714293de3836	2468
ashleymills	0:714293de3836	2469	x[0] ^= len[0];
ashleymills	0:714293de3836	2470	x[1] ^= len[1];
ashleymills	0:714293de3836	2471	x[2] ^= len[2];
ashleymills	0:714293de3836	2472	x[3] ^= len[3];
ashleymills	0:714293de3836	2473	GMULT(x, bigH);
ashleymills	0:714293de3836	2474	}
ashleymills	0:714293de3836	2475	#ifdef LITTLE_ENDIAN_ORDER
ashleymills	0:714293de3836	2476	ByteReverseWords(x, x, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2477	#endif
ashleymills	0:714293de3836	2478	XMEMCPY(s, x, sSz);
ashleymills	0:714293de3836	2479	}
ashleymills	0:714293de3836	2480
ashleymills	0:714293de3836	2481	#endif /* end GCM_WORD32 */
ashleymills	0:714293de3836	2482
ashleymills	0:714293de3836	2483
ashleymills	0:714293de3836	2484	void AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz,
ashleymills	0:714293de3836	2485	const byte* iv, word32 ivSz,
ashleymills	0:714293de3836	2486	byte* authTag, word32 authTagSz,
ashleymills	0:714293de3836	2487	const byte* authIn, word32 authInSz)
ashleymills	0:714293de3836	2488	{
ashleymills	0:714293de3836	2489	word32 blocks = sz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2490	word32 partial = sz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2491	const byte* p = in;
ashleymills	0:714293de3836	2492	byte* c = out;
ashleymills	0:714293de3836	2493	byte ctr[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2494	byte scratch[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2495
ashleymills	0:714293de3836	2496	CYASSL_ENTER("AesGcmEncrypt");
ashleymills	0:714293de3836	2497
ashleymills	0:714293de3836	2498	XMEMSET(ctr, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2499	XMEMCPY(ctr, iv, ivSz);
ashleymills	0:714293de3836	2500	InitGcmCounter(ctr);
ashleymills	0:714293de3836	2501
ashleymills	0:714293de3836	2502	while (blocks--) {
ashleymills	0:714293de3836	2503	IncrementGcmCounter(ctr);
ashleymills	0:714293de3836	2504	AesEncrypt(aes, ctr, scratch);
ashleymills	0:714293de3836	2505	xorbuf(scratch, p, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2506	XMEMCPY(c, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2507
ashleymills	0:714293de3836	2508	p += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2509	c += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2510	}
ashleymills	0:714293de3836	2511	if (partial != 0) {
ashleymills	0:714293de3836	2512	IncrementGcmCounter(ctr);
ashleymills	0:714293de3836	2513	AesEncrypt(aes, ctr, scratch);
ashleymills	0:714293de3836	2514	xorbuf(scratch, p, partial);
ashleymills	0:714293de3836	2515	XMEMCPY(c, scratch, partial);
ashleymills	0:714293de3836	2516	}
ashleymills	0:714293de3836	2517	GHASH(aes, authIn, authInSz, out, sz, authTag, authTagSz);
ashleymills	0:714293de3836	2518	InitGcmCounter(ctr);
ashleymills	0:714293de3836	2519	AesEncrypt(aes, ctr, scratch);
ashleymills	0:714293de3836	2520	xorbuf(authTag, scratch, authTagSz);
ashleymills	0:714293de3836	2521	}
ashleymills	0:714293de3836	2522
ashleymills	0:714293de3836	2523
ashleymills	0:714293de3836	2524	int AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
ashleymills	0:714293de3836	2525	const byte* iv, word32 ivSz,
ashleymills	0:714293de3836	2526	const byte* authTag, word32 authTagSz,
ashleymills	0:714293de3836	2527	const byte* authIn, word32 authInSz)
ashleymills	0:714293de3836	2528	{
ashleymills	0:714293de3836	2529	word32 blocks = sz / AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2530	word32 partial = sz % AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2531	const byte* c = in;
ashleymills	0:714293de3836	2532	byte* p = out;
ashleymills	0:714293de3836	2533	byte ctr[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2534	byte scratch[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2535
ashleymills	0:714293de3836	2536	CYASSL_ENTER("AesGcmDecrypt");
ashleymills	0:714293de3836	2537
ashleymills	0:714293de3836	2538	XMEMSET(ctr, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2539	XMEMCPY(ctr, iv, ivSz);
ashleymills	0:714293de3836	2540	InitGcmCounter(ctr);
ashleymills	0:714293de3836	2541
ashleymills	0:714293de3836	2542	/* Calculate the authTag again using the received auth data and the
ashleymills	0:714293de3836	2543	* cipher text. */
ashleymills	0:714293de3836	2544	{
ashleymills	0:714293de3836	2545	byte Tprime[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2546	byte EKY0[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2547
ashleymills	0:714293de3836	2548	GHASH(aes, authIn, authInSz, in, sz, Tprime, sizeof(Tprime));
ashleymills	0:714293de3836	2549	AesEncrypt(aes, ctr, EKY0);
ashleymills	0:714293de3836	2550	xorbuf(Tprime, EKY0, sizeof(Tprime));
ashleymills	0:714293de3836	2551	if (XMEMCMP(authTag, Tprime, authTagSz) != 0) {
ashleymills	0:714293de3836	2552	return AES_GCM_AUTH_E;
ashleymills	0:714293de3836	2553	}
ashleymills	0:714293de3836	2554	}
ashleymills	0:714293de3836	2555
ashleymills	0:714293de3836	2556	while (blocks--) {
ashleymills	0:714293de3836	2557	IncrementGcmCounter(ctr);
ashleymills	0:714293de3836	2558	AesEncrypt(aes, ctr, scratch);
ashleymills	0:714293de3836	2559	xorbuf(scratch, c, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2560	XMEMCPY(p, scratch, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2561
ashleymills	0:714293de3836	2562	p += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2563	c += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2564	}
ashleymills	0:714293de3836	2565	if (partial != 0) {
ashleymills	0:714293de3836	2566	IncrementGcmCounter(ctr);
ashleymills	0:714293de3836	2567	AesEncrypt(aes, ctr, scratch);
ashleymills	0:714293de3836	2568	xorbuf(scratch, c, partial);
ashleymills	0:714293de3836	2569	XMEMCPY(p, scratch, partial);
ashleymills	0:714293de3836	2570	}
ashleymills	0:714293de3836	2571
ashleymills	0:714293de3836	2572	return 0;
ashleymills	0:714293de3836	2573	}
ashleymills	0:714293de3836	2574
ashleymills	0:714293de3836	2575	#endif /* HAVE_AESGCM */
ashleymills	0:714293de3836	2576
ashleymills	0:714293de3836	2577	#ifdef HAVE_AESCCM
ashleymills	0:714293de3836	2578
ashleymills	0:714293de3836	2579	void AesCcmSetKey(Aes* aes, const byte* key, word32 keySz)
ashleymills	0:714293de3836	2580	{
ashleymills	0:714293de3836	2581	byte nonce[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2582
ashleymills	0:714293de3836	2583	if (!((keySz == 16) \|\| (keySz == 24) \|\| (keySz == 32)))
ashleymills	0:714293de3836	2584	return;
ashleymills	0:714293de3836	2585
ashleymills	0:714293de3836	2586	XMEMSET(nonce, 0, sizeof(nonce));
ashleymills	0:714293de3836	2587	AesSetKeyLocal(aes, key, keySz, nonce, AES_ENCRYPTION);
ashleymills	0:714293de3836	2588	}
ashleymills	0:714293de3836	2589
ashleymills	0:714293de3836	2590
ashleymills	0:714293de3836	2591	static void roll_x(Aes* aes, const byte* in, word32 inSz, byte* out)
ashleymills	0:714293de3836	2592	{
ashleymills	0:714293de3836	2593	/* process the bulk of the data */
ashleymills	0:714293de3836	2594	while (inSz >= AES_BLOCK_SIZE) {
ashleymills	0:714293de3836	2595	xorbuf(out, in, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2596	in += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2597	inSz -= AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2598
ashleymills	0:714293de3836	2599	AesEncrypt(aes, out, out);
ashleymills	0:714293de3836	2600	}
ashleymills	0:714293de3836	2601
ashleymills	0:714293de3836	2602	/* process remainder of the data */
ashleymills	0:714293de3836	2603	if (inSz > 0) {
ashleymills	0:714293de3836	2604	xorbuf(out, in, inSz);
ashleymills	0:714293de3836	2605	AesEncrypt(aes, out, out);
ashleymills	0:714293de3836	2606	}
ashleymills	0:714293de3836	2607	}
ashleymills	0:714293de3836	2608
ashleymills	0:714293de3836	2609
ashleymills	0:714293de3836	2610	static void roll_auth(Aes* aes, const byte* in, word32 inSz, byte* out)
ashleymills	0:714293de3836	2611	{
ashleymills	0:714293de3836	2612	word32 authLenSz;
ashleymills	0:714293de3836	2613	word32 remainder;
ashleymills	0:714293de3836	2614
ashleymills	0:714293de3836	2615	/* encode the length in */
ashleymills	0:714293de3836	2616	if (inSz <= 0xFEFF) {
ashleymills	0:714293de3836	2617	authLenSz = 2;
ashleymills	0:714293de3836	2618	out[0] ^= ((inSz & 0xFF00) >> 8);
ashleymills	0:714293de3836	2619	out[1] ^= (inSz & 0x00FF);
ashleymills	0:714293de3836	2620	}
ashleymills	0:714293de3836	2621	else if (inSz <= 0xFFFFFFFF) {
ashleymills	0:714293de3836	2622	authLenSz = 6;
ashleymills	0:714293de3836	2623	out[0] ^= 0xFF; out[1] ^= 0xFE;
ashleymills	0:714293de3836	2624	out[2] ^= ((inSz & 0xFF000000) >> 24);
ashleymills	0:714293de3836	2625	out[3] ^= ((inSz & 0x00FF0000) >> 16);
ashleymills	0:714293de3836	2626	out[4] ^= ((inSz & 0x0000FF00) >> 8);
ashleymills	0:714293de3836	2627	out[5] ^= (inSz & 0x000000FF);
ashleymills	0:714293de3836	2628	}
ashleymills	0:714293de3836	2629	/* Note, the protocol handles auth data up to 2^64, but we are
ashleymills	0:714293de3836	2630	* using 32-bit sizes right now, so the bigger data isn't handled
ashleymills	0:714293de3836	2631	* else if (inSz <= 0xFFFFFFFFFFFFFFFF) {} */
ashleymills	0:714293de3836	2632	else
ashleymills	0:714293de3836	2633	return;
ashleymills	0:714293de3836	2634
ashleymills	0:714293de3836	2635	/* start fill out the rest of the first block */
ashleymills	0:714293de3836	2636	remainder = AES_BLOCK_SIZE - authLenSz;
ashleymills	0:714293de3836	2637	if (inSz >= remainder) {
ashleymills	0:714293de3836	2638	/* plenty of bulk data to fill the remainder of this block */
ashleymills	0:714293de3836	2639	xorbuf(out + authLenSz, in, remainder);
ashleymills	0:714293de3836	2640	inSz -= remainder;
ashleymills	0:714293de3836	2641	in += remainder;
ashleymills	0:714293de3836	2642	}
ashleymills	0:714293de3836	2643	else {
ashleymills	0:714293de3836	2644	/* not enough bulk data, copy what is available, and pad zero */
ashleymills	0:714293de3836	2645	xorbuf(out + authLenSz, in, inSz);
ashleymills	0:714293de3836	2646	inSz = 0;
ashleymills	0:714293de3836	2647	}
ashleymills	0:714293de3836	2648	AesEncrypt(aes, out, out);
ashleymills	0:714293de3836	2649
ashleymills	0:714293de3836	2650	if (inSz > 0)
ashleymills	0:714293de3836	2651	roll_x(aes, in, inSz, out);
ashleymills	0:714293de3836	2652	}
ashleymills	0:714293de3836	2653
ashleymills	0:714293de3836	2654
ashleymills	0:714293de3836	2655	static INLINE void AesCcmCtrInc(byte* B, word32 lenSz)
ashleymills	0:714293de3836	2656	{
ashleymills	0:714293de3836	2657	word32 i;
ashleymills	0:714293de3836	2658
ashleymills	0:714293de3836	2659	for (i = 0; i < lenSz; i++) {
ashleymills	0:714293de3836	2660	if (++B[AES_BLOCK_SIZE - 1 - i] != 0) return;
ashleymills	0:714293de3836	2661	}
ashleymills	0:714293de3836	2662	}
ashleymills	0:714293de3836	2663
ashleymills	0:714293de3836	2664
ashleymills	0:714293de3836	2665	void AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
ashleymills	0:714293de3836	2666	const byte* nonce, word32 nonceSz,
ashleymills	0:714293de3836	2667	byte* authTag, word32 authTagSz,
ashleymills	0:714293de3836	2668	const byte* authIn, word32 authInSz)
ashleymills	0:714293de3836	2669	{
ashleymills	0:714293de3836	2670	byte A[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2671	byte B[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2672	word32 i, lenSz;
ashleymills	0:714293de3836	2673
ashleymills	0:714293de3836	2674	XMEMCPY(B+1, nonce, nonceSz);
ashleymills	0:714293de3836	2675	lenSz = AES_BLOCK_SIZE - 1 - nonceSz;
ashleymills	0:714293de3836	2676	B[0] = (authInSz > 0 ? 64 : 0)
ashleymills	0:714293de3836	2677	+ (8 * ((authTagSz - 2) / 2))
ashleymills	0:714293de3836	2678	+ (lenSz - 1);
ashleymills	0:714293de3836	2679	for (i = 0; i < lenSz; i++)
ashleymills	0:714293de3836	2680	B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF;
ashleymills	0:714293de3836	2681
ashleymills	0:714293de3836	2682	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2683	if (authInSz > 0)
ashleymills	0:714293de3836	2684	roll_auth(aes, authIn, authInSz, A);
ashleymills	0:714293de3836	2685	if (inSz > 0)
ashleymills	0:714293de3836	2686	roll_x(aes, in, inSz, A);
ashleymills	0:714293de3836	2687	XMEMCPY(authTag, A, authTagSz);
ashleymills	0:714293de3836	2688
ashleymills	0:714293de3836	2689	B[0] = (lenSz - 1);
ashleymills	0:714293de3836	2690	for (i = 0; i < lenSz; i++)
ashleymills	0:714293de3836	2691	B[AES_BLOCK_SIZE - 1 - i] = 0;
ashleymills	0:714293de3836	2692	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2693	xorbuf(authTag, A, authTagSz);
ashleymills	0:714293de3836	2694
ashleymills	0:714293de3836	2695	B[15] = 1;
ashleymills	0:714293de3836	2696	while (inSz >= AES_BLOCK_SIZE) {
ashleymills	0:714293de3836	2697	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2698	xorbuf(A, in, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2699	XMEMCPY(out, A, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2700
ashleymills	0:714293de3836	2701	AesCcmCtrInc(B, lenSz);
ashleymills	0:714293de3836	2702	inSz -= AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2703	in += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2704	out += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2705	}
ashleymills	0:714293de3836	2706	if (inSz > 0) {
ashleymills	0:714293de3836	2707	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2708	xorbuf(A, in, inSz);
ashleymills	0:714293de3836	2709	XMEMCPY(out, A, inSz);
ashleymills	0:714293de3836	2710	}
ashleymills	0:714293de3836	2711
ashleymills	0:714293de3836	2712	XMEMSET(A, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2713	XMEMSET(B, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2714	}
ashleymills	0:714293de3836	2715
ashleymills	0:714293de3836	2716
ashleymills	0:714293de3836	2717	int AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
ashleymills	0:714293de3836	2718	const byte* nonce, word32 nonceSz,
ashleymills	0:714293de3836	2719	const byte* authTag, word32 authTagSz,
ashleymills	0:714293de3836	2720	const byte* authIn, word32 authInSz)
ashleymills	0:714293de3836	2721	{
ashleymills	0:714293de3836	2722	byte A[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2723	byte B[AES_BLOCK_SIZE];
ashleymills	0:714293de3836	2724	byte* o;
ashleymills	0:714293de3836	2725	word32 i, lenSz, oSz; int result = 0;
ashleymills	0:714293de3836	2726
ashleymills	0:714293de3836	2727	o = out;
ashleymills	0:714293de3836	2728	oSz = inSz;
ashleymills	0:714293de3836	2729	XMEMCPY(B+1, nonce, nonceSz);
ashleymills	0:714293de3836	2730	lenSz = AES_BLOCK_SIZE - 1 - nonceSz;
ashleymills	0:714293de3836	2731
ashleymills	0:714293de3836	2732	B[0] = (lenSz - 1);
ashleymills	0:714293de3836	2733	for (i = 0; i < lenSz; i++)
ashleymills	0:714293de3836	2734	B[AES_BLOCK_SIZE - 1 - i] = 0;
ashleymills	0:714293de3836	2735	B[15] = 1;
ashleymills	0:714293de3836	2736
ashleymills	0:714293de3836	2737	while (oSz >= AES_BLOCK_SIZE) {
ashleymills	0:714293de3836	2738	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2739	xorbuf(A, in, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2740	XMEMCPY(o, A, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2741
ashleymills	0:714293de3836	2742	AesCcmCtrInc(B, lenSz);
ashleymills	0:714293de3836	2743	oSz -= AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2744	in += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2745	o += AES_BLOCK_SIZE;
ashleymills	0:714293de3836	2746	}
ashleymills	0:714293de3836	2747	if (inSz > 0) {
ashleymills	0:714293de3836	2748	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2749	xorbuf(A, in, oSz);
ashleymills	0:714293de3836	2750	XMEMCPY(o, A, oSz);
ashleymills	0:714293de3836	2751	}
ashleymills	0:714293de3836	2752
ashleymills	0:714293de3836	2753	for (i = 0; i < lenSz; i++)
ashleymills	0:714293de3836	2754	B[AES_BLOCK_SIZE - 1 - i] = 0;
ashleymills	0:714293de3836	2755	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2756
ashleymills	0:714293de3836	2757	o = out;
ashleymills	0:714293de3836	2758	oSz = inSz;
ashleymills	0:714293de3836	2759
ashleymills	0:714293de3836	2760	B[0] = (authInSz > 0 ? 64 : 0)
ashleymills	0:714293de3836	2761	+ (8 * ((authTagSz - 2) / 2))
ashleymills	0:714293de3836	2762	+ (lenSz - 1);
ashleymills	0:714293de3836	2763	for (i = 0; i < lenSz; i++)
ashleymills	0:714293de3836	2764	B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF;
ashleymills	0:714293de3836	2765
ashleymills	0:714293de3836	2766	AesEncrypt(aes, B, A);
ashleymills	0:714293de3836	2767	if (authInSz > 0)
ashleymills	0:714293de3836	2768	roll_auth(aes, authIn, authInSz, A);
ashleymills	0:714293de3836	2769	if (inSz > 0)
ashleymills	0:714293de3836	2770	roll_x(aes, o, oSz, A);
ashleymills	0:714293de3836	2771
ashleymills	0:714293de3836	2772	B[0] = (lenSz - 1);
ashleymills	0:714293de3836	2773	for (i = 0; i < lenSz; i++)
ashleymills	0:714293de3836	2774	B[AES_BLOCK_SIZE - 1 - i] = 0;
ashleymills	0:714293de3836	2775	AesEncrypt(aes, B, B);
ashleymills	0:714293de3836	2776	xorbuf(A, B, authTagSz);
ashleymills	0:714293de3836	2777
ashleymills	0:714293de3836	2778	if (XMEMCMP(A, authTag, authTagSz) != 0) {
ashleymills	0:714293de3836	2779	/* If the authTag check fails, don't keep the decrypted data.
ashleymills	0:714293de3836	2780	* Unfortunately, you need the decrypted data to calculate the
ashleymills	0:714293de3836	2781	* check value. */
ashleymills	0:714293de3836	2782	XMEMSET(out, 0, inSz);
ashleymills	0:714293de3836	2783	result = AES_CCM_AUTH_E;
ashleymills	0:714293de3836	2784	}
ashleymills	0:714293de3836	2785
ashleymills	0:714293de3836	2786	XMEMSET(A, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2787	XMEMSET(B, 0, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2788	o = NULL;
ashleymills	0:714293de3836	2789
ashleymills	0:714293de3836	2790	return result;
ashleymills	0:714293de3836	2791	}
ashleymills	0:714293de3836	2792
ashleymills	0:714293de3836	2793	#endif
ashleymills	0:714293de3836	2794
ashleymills	0:714293de3836	2795	#endif /* STM32F2_CRYPTO */
ashleymills	0:714293de3836	2796
ashleymills	0:714293de3836	2797	int AesSetIV(Aes* aes, const byte* iv)
ashleymills	0:714293de3836	2798	{
ashleymills	0:714293de3836	2799	if (aes == NULL)
ashleymills	0:714293de3836	2800	return BAD_FUNC_ARG;
ashleymills	0:714293de3836	2801
ashleymills	0:714293de3836	2802	if (iv)
ashleymills	0:714293de3836	2803	XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2804
ashleymills	0:714293de3836	2805	return 0;
ashleymills	0:714293de3836	2806	}
ashleymills	0:714293de3836	2807
ashleymills	0:714293de3836	2808
ashleymills	0:714293de3836	2809	#ifdef HAVE_CAVIUM
ashleymills	0:714293de3836	2810
ashleymills	0:714293de3836	2811	#include <cyassl/ctaocrypt/logging.h>
ashleymills	0:714293de3836	2812	#include "cavium_common.h"
ashleymills	0:714293de3836	2813
ashleymills	0:714293de3836	2814	/* Initiliaze Aes for use with Nitrox device */
ashleymills	0:714293de3836	2815	int AesInitCavium(Aes* aes, int devId)
ashleymills	0:714293de3836	2816	{
ashleymills	0:714293de3836	2817	if (aes == NULL)
ashleymills	0:714293de3836	2818	return -1;
ashleymills	0:714293de3836	2819
ashleymills	0:714293de3836	2820	if (CspAllocContext(CONTEXT_SSL, &aes->contextHandle, devId) != 0)
ashleymills	0:714293de3836	2821	return -1;
ashleymills	0:714293de3836	2822
ashleymills	0:714293de3836	2823	aes->devId = devId;
ashleymills	0:714293de3836	2824	aes->magic = CYASSL_AES_CAVIUM_MAGIC;
ashleymills	0:714293de3836	2825
ashleymills	0:714293de3836	2826	return 0;
ashleymills	0:714293de3836	2827	}
ashleymills	0:714293de3836	2828
ashleymills	0:714293de3836	2829
ashleymills	0:714293de3836	2830	/* Free Aes from use with Nitrox device */
ashleymills	0:714293de3836	2831	void AesFreeCavium(Aes* aes)
ashleymills	0:714293de3836	2832	{
ashleymills	0:714293de3836	2833	if (aes == NULL)
ashleymills	0:714293de3836	2834	return;
ashleymills	0:714293de3836	2835
ashleymills	0:714293de3836	2836	if (aes->magic != CYASSL_AES_CAVIUM_MAGIC)
ashleymills	0:714293de3836	2837	return;
ashleymills	0:714293de3836	2838
ashleymills	0:714293de3836	2839	CspFreeContext(CONTEXT_SSL, aes->contextHandle, aes->devId);
ashleymills	0:714293de3836	2840	aes->magic = 0;
ashleymills	0:714293de3836	2841	}
ashleymills	0:714293de3836	2842
ashleymills	0:714293de3836	2843
ashleymills	0:714293de3836	2844	static int AesCaviumSetKey(Aes* aes, const byte* key, word32 length,
ashleymills	0:714293de3836	2845	const byte* iv)
ashleymills	0:714293de3836	2846	{
ashleymills	0:714293de3836	2847	if (aes == NULL)
ashleymills	0:714293de3836	2848	return -1;
ashleymills	0:714293de3836	2849
ashleymills	0:714293de3836	2850	XMEMCPY(aes->key, key, length); /* key still holds key, iv still in reg */
ashleymills	0:714293de3836	2851	if (length == 16)
ashleymills	0:714293de3836	2852	aes->type = AES_128;
ashleymills	0:714293de3836	2853	else if (length == 24)
ashleymills	0:714293de3836	2854	aes->type = AES_192;
ashleymills	0:714293de3836	2855	else if (length == 32)
ashleymills	0:714293de3836	2856	aes->type = AES_256;
ashleymills	0:714293de3836	2857
ashleymills	0:714293de3836	2858	return AesSetIV(aes, iv);
ashleymills	0:714293de3836	2859	}
ashleymills	0:714293de3836	2860
ashleymills	0:714293de3836	2861
ashleymills	0:714293de3836	2862	static void AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in,
ashleymills	0:714293de3836	2863	word32 length)
ashleymills	0:714293de3836	2864	{
ashleymills	0:714293de3836	2865	word offset = 0;
ashleymills	0:714293de3836	2866	word32 requestId;
ashleymills	0:714293de3836	2867
ashleymills	0:714293de3836	2868	while (length > CYASSL_MAX_16BIT) {
ashleymills	0:714293de3836	2869	word16 slen = (word16)CYASSL_MAX_16BIT;
ashleymills	0:714293de3836	2870	if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
ashleymills	0:714293de3836	2871	aes->type, slen, (byte*)in + offset, out + offset,
ashleymills	0:714293de3836	2872	(byte)aes->reg, (byte)aes->key, &requestId,
ashleymills	0:714293de3836	2873	aes->devId) != 0) {
ashleymills	0:714293de3836	2874	CYASSL_MSG("Bad Cavium Aes Encrypt");
ashleymills	0:714293de3836	2875	}
ashleymills	0:714293de3836	2876	length -= CYASSL_MAX_16BIT;
ashleymills	0:714293de3836	2877	offset += CYASSL_MAX_16BIT;
ashleymills	0:714293de3836	2878	XMEMCPY(aes->reg, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2879	}
ashleymills	0:714293de3836	2880	if (length) {
ashleymills	0:714293de3836	2881	word16 slen = (word16)length;
ashleymills	0:714293de3836	2882	if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
ashleymills	0:714293de3836	2883	aes->type, slen, (byte*)in + offset, out + offset,
ashleymills	0:714293de3836	2884	(byte)aes->reg, (byte)aes->key, &requestId,
ashleymills	0:714293de3836	2885	aes->devId) != 0) {
ashleymills	0:714293de3836	2886	CYASSL_MSG("Bad Cavium Aes Encrypt");
ashleymills	0:714293de3836	2887	}
ashleymills	0:714293de3836	2888	XMEMCPY(aes->reg, out + offset+length - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2889	}
ashleymills	0:714293de3836	2890	}
ashleymills	0:714293de3836	2891
ashleymills	0:714293de3836	2892	static void AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in,
ashleymills	0:714293de3836	2893	word32 length)
ashleymills	0:714293de3836	2894	{
ashleymills	0:714293de3836	2895	word32 requestId;
ashleymills	0:714293de3836	2896	word offset = 0;
ashleymills	0:714293de3836	2897
ashleymills	0:714293de3836	2898	while (length > CYASSL_MAX_16BIT) {
ashleymills	0:714293de3836	2899	word16 slen = (word16)CYASSL_MAX_16BIT;
ashleymills	0:714293de3836	2900	XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2901	if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
ashleymills	0:714293de3836	2902	aes->type, slen, (byte*)in + offset, out + offset,
ashleymills	0:714293de3836	2903	(byte)aes->reg, (byte)aes->key, &requestId,
ashleymills	0:714293de3836	2904	aes->devId) != 0) {
ashleymills	0:714293de3836	2905	CYASSL_MSG("Bad Cavium Aes Decrypt");
ashleymills	0:714293de3836	2906	}
ashleymills	0:714293de3836	2907	length -= CYASSL_MAX_16BIT;
ashleymills	0:714293de3836	2908	offset += CYASSL_MAX_16BIT;
ashleymills	0:714293de3836	2909	XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2910	}
ashleymills	0:714293de3836	2911	if (length) {
ashleymills	0:714293de3836	2912	word16 slen = (word16)length;
ashleymills	0:714293de3836	2913	XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2914	if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
ashleymills	0:714293de3836	2915	aes->type, slen, (byte*)in + offset, out + offset,
ashleymills	0:714293de3836	2916	(byte)aes->reg, (byte)aes->key, &requestId,
ashleymills	0:714293de3836	2917	aes->devId) != 0) {
ashleymills	0:714293de3836	2918	CYASSL_MSG("Bad Cavium Aes Decrypt");
ashleymills	0:714293de3836	2919	}
ashleymills	0:714293de3836	2920	XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
ashleymills	0:714293de3836	2921	}
ashleymills	0:714293de3836	2922	}
ashleymills	0:714293de3836	2923
ashleymills	0:714293de3836	2924	#endif /* HAVE_CAVIUM */
ashleymills	0:714293de3836	2925
ashleymills	0:714293de3836	2926	#endif /* NO_AES */
ashleymills	0:714293de3836	2927

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Type:	Library
Created:	05 Sep 2013
Imports:	18
Forks:	0
Commits:	2
Dependents:	2
Dependencies:	0
Followers:	4

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Ashley Mills

Francois Berder

The code in this repository is Apache licensed.

ctaocrypt/src/aes.c@0:714293de3836, 2013-09-05 (annotated)

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