Fork of CyaSSL for my specific settings
Fork of CyaSSL by
ctaocrypt/src/aes.c
- Committer:
- d0773d
- Date:
- 2015-03-03
- Revision:
- 4:28ac50e1d49c
- Parent:
- 0:1239e9b70ca2
File content as of revision 4:28ac50e1d49c:
/* aes.c * * Copyright (C) 2006-2014 wolfSSL Inc. * * This file is part of CyaSSL. * * CyaSSL is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * CyaSSL is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <cyassl/ctaocrypt/settings.h> #ifndef NO_AES #ifdef HAVE_FIPS /* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */ #define FIPS_NO_WRAPPERS #endif #include <cyassl/ctaocrypt/aes.h> #include <cyassl/ctaocrypt/error-crypt.h> #include <cyassl/ctaocrypt/logging.h> #ifdef NO_INLINE #include <cyassl/ctaocrypt/misc.h> #else #include <ctaocrypt/src/misc.c> #endif #ifdef DEBUG_AESNI #include <stdio.h> #endif #ifdef _MSC_VER /* 4127 warning constant while(1) */ #pragma warning(disable: 4127) #endif #ifdef HAVE_CAVIUM static int AesCaviumSetKey(Aes* aes, const byte* key, word32 length, const byte* iv); static int AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 length); static int AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 length); #endif #if defined(CYASSL_PIC32MZ_CRYPT) #include "../../cyassl/ctaocrypt/port/pic32/pic32mz-crypt.h" #define DEBUG_CYASSL /* core hardware crypt engine driver */ static void AesCrypt(Aes *aes, byte* out, const byte* in, word32 sz, int dir, int algo, int cryptoalgo) { securityAssociation *sa_p ; bufferDescriptor *bd_p ; volatile securityAssociation sa __attribute__((aligned (8))); volatile bufferDescriptor bd __attribute__((aligned (8))); volatile int k ; /* get uncached address */ sa_p = KVA0_TO_KVA1(&sa) ; bd_p = KVA0_TO_KVA1(&bd) ; /* Sync cache and physical memory */ if(PIC32MZ_IF_RAM(in)) { XMEMCPY((void *)KVA0_TO_KVA1(in), (void *)in, sz); } XMEMSET((void *)KVA0_TO_KVA1(out), 0, sz); /* Set up the Security Association */ XMEMSET((byte *)KVA0_TO_KVA1(&sa), 0, sizeof(sa)); sa_p->SA_CTRL.ALGO = algo ; /* AES */ sa_p->SA_CTRL.LNC = 1; sa_p->SA_CTRL.LOADIV = 1; sa_p->SA_CTRL.FB = 1; sa_p->SA_CTRL.ENCTYPE = dir ; /* Encryption/Decryption */ sa_p->SA_CTRL.CRYPTOALGO = cryptoalgo; if(cryptoalgo == PIC32_CRYPTOALGO_AES_GCM){ switch(aes->keylen) { case 32: sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_256 ; break ; case 24: sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_192 ; break ; case 16: sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_128 ; break ; } } else sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_128 ; ByteReverseWords( (word32 *)KVA0_TO_KVA1(sa.SA_ENCKEY + 8 - aes->keylen/sizeof(word32)), (word32 *)aes->key_ce, aes->keylen); ByteReverseWords( (word32*)KVA0_TO_KVA1(sa.SA_ENCIV), (word32 *)aes->iv_ce, 16); XMEMSET((byte *)KVA0_TO_KVA1(&bd), 0, sizeof(bd)); /* Set up the Buffer Descriptor */ bd_p->BD_CTRL.BUFLEN = sz; if(cryptoalgo == PIC32_CRYPTOALGO_AES_GCM) { if(sz % 0x10) bd_p->BD_CTRL.BUFLEN = (sz/0x10 + 1) * 0x10 ; } bd_p->BD_CTRL.LIFM = 1; bd_p->BD_CTRL.SA_FETCH_EN = 1; bd_p->BD_CTRL.LAST_BD = 1; bd_p->BD_CTRL.DESC_EN = 1; bd_p->SA_ADDR = (unsigned int)KVA_TO_PA(&sa) ; bd_p->SRCADDR = (unsigned int)KVA_TO_PA(in) ; bd_p->DSTADDR = (unsigned int)KVA_TO_PA(out); bd_p->MSGLEN = sz ; CECON = 1 << 6; while (CECON); /* Run the engine */ CEBDPADDR = (unsigned int)KVA_TO_PA(&bd) ; CEINTEN = 0x07; CECON = 0x27; WAIT_ENGINE ; if((cryptoalgo == PIC32_CRYPTOALGO_CBC) || (cryptoalgo == PIC32_CRYPTOALGO_TCBC)|| (cryptoalgo == PIC32_CRYPTOALGO_RCBC)) { /* set iv for the next call */ if(dir == PIC32_ENCRYPTION) { XMEMCPY((void *)aes->iv_ce, (void*)KVA0_TO_KVA1(out + sz - AES_BLOCK_SIZE), AES_BLOCK_SIZE) ; } else { ByteReverseWords((word32*)aes->iv_ce, (word32 *)KVA0_TO_KVA1(in + sz - AES_BLOCK_SIZE), AES_BLOCK_SIZE); } } XMEMCPY((byte *)out, (byte *)KVA0_TO_KVA1(out), sz) ; ByteReverseWords((word32*)out, (word32 *)out, sz); } int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { AesCrypt(aes, out, in, sz, PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCBC ); } int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) { AesCrypt(aes, out, in, sz, PIC32_DECRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCBC); } #if defined(CYASSL_AES_COUNTER) void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { int i ; char out_block[AES_BLOCK_SIZE] ; int odd ; int even ; char *tmp ; /* (char *)aes->tmp, for short */ tmp = (char *)aes->tmp ; if(aes->left) { if((aes->left + sz) >= AES_BLOCK_SIZE){ odd = AES_BLOCK_SIZE - aes->left ; } else { odd = sz ; } XMEMCPY(tmp+aes->left, in, odd) ; if((odd+aes->left) == AES_BLOCK_SIZE){ AesCrypt(aes, out_block, tmp, AES_BLOCK_SIZE, PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR); XMEMCPY(out, out_block+aes->left, odd) ; aes->left = 0 ; XMEMSET(tmp, 0x0, AES_BLOCK_SIZE) ; /* Increment IV */ for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) { if (++((byte *)aes->iv_ce)[i]) break ; } } in += odd ; out+= odd ; sz -= odd ; } odd = sz % AES_BLOCK_SIZE ; /* if there is tail flagment */ if(sz / AES_BLOCK_SIZE) { even = (sz/AES_BLOCK_SIZE)*AES_BLOCK_SIZE ; AesCrypt(aes, out, in, even, PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR); out += even ; in += even ; do { /* Increment IV */ for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) { if (++((byte *)aes->iv_ce)[i]) break ; } even -= AES_BLOCK_SIZE ; } while((int)even > 0) ; } if(odd) { XMEMSET(tmp+aes->left, 0x0, AES_BLOCK_SIZE - aes->left) ; XMEMCPY(tmp+aes->left, in, odd) ; AesCrypt(aes, out_block, tmp, AES_BLOCK_SIZE, PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR); XMEMCPY(out, out_block+aes->left,odd) ; aes->left += odd ; } } #endif /* CYASSL_AES_COUNTER */ #ifdef HAVE_AESGCM #define HAVE_AES_ENGINE /* Hardware AESGCM borows most of the software AESGCM, GMAC */ #endif #endif /* CYASSL_PIC32MZ_CRYPT */ #ifdef STM32F2_CRYPTO /* * STM32F2 hardware AES support through the STM32F2 standard peripheral * library. Documentation located in STM32F2xx Standard Peripheral Library * document (See note in README). */ #include "stm32f2xx.h" #include "stm32f2xx_cryp.h" int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { word32 *rk = aes->key; if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) return BAD_FUNC_ARG; aes->rounds = keylen/4 + 6; XMEMCPY(rk, userKey, keylen); ByteReverseWords(rk, rk, keylen); return AesSetIV(aes, iv); } int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { word32 *enc_key, *iv; CRYP_InitTypeDef AES_CRYP_InitStructure; CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure; CRYP_IVInitTypeDef AES_CRYP_IVInitStructure; enc_key = aes->key; iv = aes->reg; /* crypto structure initialization */ CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure); CRYP_StructInit(&AES_CRYP_InitStructure); CRYP_IVStructInit(&AES_CRYP_IVInitStructure); /* reset registers to their default values */ CRYP_DeInit(); /* load key into correct registers */ switch(aes->rounds) { case 10: /* 128-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b; AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3]; break; case 12: /* 192-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b; AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[4]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5]; break; case 14: /* 256-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b; AES_CRYP_KeyInitStructure.CRYP_Key0Left = enc_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3]; AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[4]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[6]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7]; break; default: break; } CRYP_KeyInit(&AES_CRYP_KeyInitStructure); /* set iv */ ByteReverseWords(iv, iv, AES_BLOCK_SIZE); AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2]; AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3]; CRYP_IVInit(&AES_CRYP_IVInitStructure); /* set direction, mode, and datatype */ AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt; AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC; AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; CRYP_Init(&AES_CRYP_InitStructure); /* enable crypto processor */ CRYP_Cmd(ENABLE); while (sz > 0) { /* flush IN/OUT FIFOs */ CRYP_FIFOFlush(); CRYP_DataIn(*(uint32_t*)&in[0]); CRYP_DataIn(*(uint32_t*)&in[4]); CRYP_DataIn(*(uint32_t*)&in[8]); CRYP_DataIn(*(uint32_t*)&in[12]); /* wait until the complete message has been processed */ while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} *(uint32_t*)&out[0] = CRYP_DataOut(); *(uint32_t*)&out[4] = CRYP_DataOut(); *(uint32_t*)&out[8] = CRYP_DataOut(); *(uint32_t*)&out[12] = CRYP_DataOut(); /* store iv for next call */ XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); sz -= 16; in += 16; out += 16; } /* disable crypto processor */ CRYP_Cmd(DISABLE); return 0; } int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) { word32 *dec_key, *iv; CRYP_InitTypeDef AES_CRYP_InitStructure; CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure; CRYP_IVInitTypeDef AES_CRYP_IVInitStructure; dec_key = aes->key; iv = aes->reg; /* crypto structure initialization */ CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure); CRYP_StructInit(&AES_CRYP_InitStructure); CRYP_IVStructInit(&AES_CRYP_IVInitStructure); /* if input and output same will overwrite input iv */ XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); /* reset registers to their default values */ CRYP_DeInit(); /* load key into correct registers */ switch(aes->rounds) { case 10: /* 128-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b; AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[3]; break; case 12: /* 192-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b; AES_CRYP_KeyInitStructure.CRYP_Key1Left = dec_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[3]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[4]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[5]; break; case 14: /* 256-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b; AES_CRYP_KeyInitStructure.CRYP_Key0Left = dec_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key0Right = dec_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key1Left = dec_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[3]; AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[4]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[5]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[6]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[7]; break; default: break; } /* set direction, mode, and datatype for key preparation */ AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt; AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_Key; AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b; CRYP_Init(&AES_CRYP_InitStructure); CRYP_KeyInit(&AES_CRYP_KeyInitStructure); /* enable crypto processor */ CRYP_Cmd(ENABLE); /* wait until key has been prepared */ while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} /* set direction, mode, and datatype for decryption */ AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt; AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC; AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; CRYP_Init(&AES_CRYP_InitStructure); /* set iv */ ByteReverseWords(iv, iv, AES_BLOCK_SIZE); AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2]; AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3]; CRYP_IVInit(&AES_CRYP_IVInitStructure); /* enable crypto processor */ CRYP_Cmd(ENABLE); while (sz > 0) { /* flush IN/OUT FIFOs */ CRYP_FIFOFlush(); CRYP_DataIn(*(uint32_t*)&in[0]); CRYP_DataIn(*(uint32_t*)&in[4]); CRYP_DataIn(*(uint32_t*)&in[8]); CRYP_DataIn(*(uint32_t*)&in[12]); /* wait until the complete message has been processed */ while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} *(uint32_t*)&out[0] = CRYP_DataOut(); *(uint32_t*)&out[4] = CRYP_DataOut(); *(uint32_t*)&out[8] = CRYP_DataOut(); *(uint32_t*)&out[12] = CRYP_DataOut(); /* store iv for next call */ XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); sz -= 16; in += 16; out += 16; } /* disable crypto processor */ CRYP_Cmd(DISABLE); return 0; } #ifdef CYASSL_AES_COUNTER /* AES-CTR calls this for key setup */ int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { return AesSetKey(aes, userKey, keylen, iv, dir); } void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { word32 *enc_key, *iv; CRYP_InitTypeDef AES_CRYP_InitStructure; CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure; CRYP_IVInitTypeDef AES_CRYP_IVInitStructure; enc_key = aes->key; iv = aes->reg; /* crypto structure initialization */ CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure); CRYP_StructInit(&AES_CRYP_InitStructure); CRYP_IVStructInit(&AES_CRYP_IVInitStructure); /* reset registers to their default values */ CRYP_DeInit(); /* load key into correct registers */ switch(aes->rounds) { case 10: /* 128-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b; AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3]; break; case 12: /* 192-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b; AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[4]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5]; break; case 14: /* 256-bit key */ AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b; AES_CRYP_KeyInitStructure.CRYP_Key0Left = enc_key[0]; AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1]; AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[2]; AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3]; AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[4]; AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5]; AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[6]; AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7]; break; default: break; } CRYP_KeyInit(&AES_CRYP_KeyInitStructure); /* set iv */ ByteReverseWords(iv, iv, AES_BLOCK_SIZE); AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2]; AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3]; CRYP_IVInit(&AES_CRYP_IVInitStructure); /* set direction, mode, and datatype */ AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt; AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CTR; AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; CRYP_Init(&AES_CRYP_InitStructure); /* enable crypto processor */ CRYP_Cmd(ENABLE); while (sz > 0) { /* flush IN/OUT FIFOs */ CRYP_FIFOFlush(); CRYP_DataIn(*(uint32_t*)&in[0]); CRYP_DataIn(*(uint32_t*)&in[4]); CRYP_DataIn(*(uint32_t*)&in[8]); CRYP_DataIn(*(uint32_t*)&in[12]); /* wait until the complete message has been processed */ while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} *(uint32_t*)&out[0] = CRYP_DataOut(); *(uint32_t*)&out[4] = CRYP_DataOut(); *(uint32_t*)&out[8] = CRYP_DataOut(); *(uint32_t*)&out[12] = CRYP_DataOut(); /* store iv for next call */ XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); sz -= 16; in += 16; out += 16; } /* disable crypto processor */ CRYP_Cmd(DISABLE); } #endif /* CYASSL_AES_COUNTER */ #elif defined(HAVE_COLDFIRE_SEC) #include "sec.h" #include "mcf548x_sec.h" #include "mcf548x_siu.h" #include "memory_pools.h" extern TX_BYTE_POOL mp_ncached; /* Non Cached memory pool */ #define AES_BUFFER_SIZE (AES_BLOCK_SIZE * 8) static unsigned char *AESBuffer = NULL ; #define SEC_DESC_AES_CBC_ENCRYPT 0x60300010 #define SEC_DESC_AES_CBC_DECRYPT 0x60200010 #define AES_BLOCK_LENGTH 16 extern volatile unsigned char __MBAR[]; int AesCbcEncrypt(Aes* aes, byte* po, const byte* pi, word32 sz) { return(AesCbcCrypt(aes, po, pi, sz, SEC_DESC_AES_CBC_ENCRYPT)) ; } int AesCbcDecrypt(Aes* aes, byte* po, const byte* pi, word32 sz) { return(AesCbcCrypt(aes, po, pi, sz, SEC_DESC_AES_CBC_DECRYPT)) ; } static int AesCbcCrypt(Aes* aes, byte* po, const byte* pi, word32 sz, word32 descHeader) { int i ; int stat1, stat2 ; int ret ; int size ; static SECdescriptorType descriptor; volatile int v ; if((pi == NULL) || (po == NULL)) return BAD_FUNC_ARG;/*wrong pointer*/ while(sz) { if((sz%AES_BUFFER_SIZE) == sz) { size = sz ; sz = 0 ; } else { size = AES_BUFFER_SIZE ; sz -= AES_BUFFER_SIZE ; } /* Set descriptor for SEC */ descriptor.header = descHeader ; /* descriptor.length1 = 0x0; descriptor.pointer1 = NULL; */ descriptor.length2 = AES_BLOCK_SIZE; descriptor.pointer2 = (byte *)aes->reg ; /* Initial Vector */ switch(aes->rounds) { case 10: descriptor.length3 = 16 ; break ; case 12: descriptor.length3 = 24 ; break ; case 14: descriptor.length3 = 32 ; break ; } descriptor.pointer3 = (byte *)aes->key; descriptor.length4 = size; descriptor.pointer4 = (byte *)pi ; descriptor.length5 = size; descriptor.pointer5 = AESBuffer ; /* descriptor.length6 = 0x0; descriptor.pointer6 = NULL; descriptor.length7 = 0x0; descriptor.pointer7 = NULL; descriptor.nextDescriptorPtr = NULL; */ /* Initialize SEC and wait for encryption to complete */ MCF_SEC_CCCR0 = 0x00000000; /* Point SEC to the location of the descriptor */ MCF_SEC_FR0 = (uint32)&descriptor; /* poll SISR to determine when channel is complete */ i=0 ; while (!(MCF_SEC_SISRL) && !(MCF_SEC_SISRH))i++ ; for(v=0; v<100; v++) ; ret = MCF_SEC_SISRH; stat1 = MCF_SEC_AESSR ; stat2 = MCF_SEC_AESISR ; if(ret & 0xe0000000) { db_printf("Aes_Cbc(i=%d):ISRH=%08x, AESSR=%08x, AESISR=%08x\n", i, ret, stat1, stat2) ; } XMEMCPY(po, AESBuffer, size) ; if(descHeader == SEC_DESC_AES_CBC_ENCRYPT) { XMEMCPY((void*)aes->reg, (void*)&(po[size-AES_BLOCK_SIZE]), AES_BLOCK_SIZE) ; } else { XMEMCPY((void*)aes->reg, (void*)&(pi[size-AES_BLOCK_SIZE]), AES_BLOCK_SIZE) ; } pi += size ; po += size ; } return 0 ; /* for descriptier header 0xff000000 mode */ } int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { int status ; if(AESBuffer == NULL) { status = tx_byte_allocate(&mp_ncached,(void *)&AESBuffer, AES_BUFFER_SIZE,TX_NO_WAIT); } if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) return BAD_FUNC_ARG; if (aes == NULL) return BAD_FUNC_ARG; aes->rounds = keylen/4 + 6; XMEMCPY(aes->key, userKey, keylen); if (iv) XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); return 0; } #elif defined FREESCALE_MMCAU /* * Freescale mmCAU hardware AES support through the CAU/mmCAU library. * Documentation located in ColdFire/ColdFire+ CAU and Kinetis mmCAU * Software Library User Guide (See note in README). */ #include "cau_api.h" int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { byte *rk = (byte*)aes->key; if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) return BAD_FUNC_ARG; if (rk == NULL) return BAD_FUNC_ARG; aes->rounds = keylen/4 + 6; cau_aes_set_key(userKey, keylen*8, rk); return AesSetIV(aes, iv); } int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { int i; int offset = 0; int len = sz; byte *iv, *enc_key; byte temp_block[AES_BLOCK_SIZE]; iv = (byte*)aes->reg; enc_key = (byte*)aes->key; while (len > 0) { XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE); /* XOR block with IV for CBC */ for (i = 0; i < AES_BLOCK_SIZE; i++) temp_block[i] ^= iv[i]; cau_aes_encrypt(temp_block, enc_key, aes->rounds, out + offset); len -= AES_BLOCK_SIZE; offset += AES_BLOCK_SIZE; /* store IV for next block */ XMEMCPY(iv, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE); } return 0; } int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) { int i; int offset = 0; int len = sz; byte* iv, *dec_key; byte temp_block[AES_BLOCK_SIZE]; iv = (byte*)aes->reg; dec_key = (byte*)aes->key; while (len > 0) { XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE); cau_aes_decrypt(in + offset, dec_key, aes->rounds, out + offset); /* XOR block with IV for CBC */ for (i = 0; i < AES_BLOCK_SIZE; i++) (out + offset)[i] ^= iv[i]; /* store IV for next block */ XMEMCPY(iv, temp_block, AES_BLOCK_SIZE); len -= AES_BLOCK_SIZE; offset += AES_BLOCK_SIZE; } return 0; } #else /* CTaoCrypt software implementation */ static const word32 rcon[] = { 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000, 0x20000000, 0x40000000, 0x80000000, 0x1B000000, 0x36000000, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ }; static const word32 Te[5][256] = { { 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU, 0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U, 0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU, 0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU, 0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U, 0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU, 0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU, 0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU, 0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU, 0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU, 0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U, 0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU, 0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU, 0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U, 0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU, 0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU, 0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU, 0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU, 0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU, 0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U, 0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU, 0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU, 0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU, 0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU, 0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U, 0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U, 0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U, 0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U, 0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU, 0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U, 0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U, 0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU, 0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU, 0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U, 0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U, 0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U, 0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU, 0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U, 0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU, 0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U, 0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU, 0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U, 0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U, 0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU, 0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U, 0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U, 0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U, 0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U, 0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U, 0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U, 0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U, 0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U, 0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU, 0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U, 0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U, 0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U, 0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U, 0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U, 0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U, 0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU, 0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U, 0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U, 0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U, 0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU, }, { 0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU, 0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U, 0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU, 0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U, 0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU, 0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U, 0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU, 0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U, 0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U, 0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU, 0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U, 0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U, 0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U, 0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU, 0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U, 0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U, 0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU, 0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U, 0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U, 0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U, 0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU, 0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU, 0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U, 0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU, 0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU, 0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U, 0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU, 0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U, 0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU, 0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U, 0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U, 0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U, 0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU, 0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U, 0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU, 0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U, 0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU, 0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U, 0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U, 0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU, 0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU, 0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU, 0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U, 0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U, 0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU, 0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U, 0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU, 0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U, 0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU, 0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U, 0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU, 0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU, 0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U, 0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU, 0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U, 0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU, 0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U, 0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U, 0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U, 0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU, 0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU, 0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U, 0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU, 0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U, }, { 0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU, 0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U, 0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU, 0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U, 0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU, 0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U, 0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU, 0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U, 0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U, 0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU, 0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U, 0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U, 0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U, 0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU, 0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U, 0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U, 0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU, 0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U, 0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U, 0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U, 0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU, 0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU, 0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U, 0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU, 0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU, 0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U, 0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU, 0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U, 0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU, 0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U, 0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U, 0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U, 0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU, 0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U, 0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU, 0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U, 0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU, 0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U, 0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U, 0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU, 0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU, 0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU, 0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U, 0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U, 0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU, 0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U, 0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU, 0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U, 0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU, 0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U, 0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU, 0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU, 0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U, 0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU, 0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U, 0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU, 0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U, 0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U, 0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U, 0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU, 0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU, 0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U, 0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU, 0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U, }, { 0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U, 0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U, 0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U, 0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU, 0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU, 0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU, 0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U, 0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU, 0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU, 0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U, 0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U, 0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU, 0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU, 0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU, 0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU, 0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU, 0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U, 0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU, 0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU, 0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U, 0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U, 0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U, 0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U, 0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U, 0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU, 0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U, 0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU, 0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU, 0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U, 0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U, 0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U, 0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU, 0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U, 0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU, 0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU, 0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U, 0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U, 0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU, 0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U, 0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU, 0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U, 0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U, 0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U, 0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U, 0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU, 0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U, 0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU, 0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U, 0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU, 0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U, 0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU, 0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU, 0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU, 0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU, 0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U, 0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U, 0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U, 0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U, 0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U, 0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U, 0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU, 0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U, 0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU, 0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU, }, { 0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU, 0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U, 0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU, 0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U, 0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU, 0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U, 0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU, 0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U, 0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U, 0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU, 0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U, 0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U, 0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U, 0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU, 0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U, 0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U, 0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU, 0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U, 0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U, 0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U, 0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU, 0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU, 0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U, 0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU, 0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU, 0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U, 0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU, 0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U, 0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU, 0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U, 0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U, 0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U, 0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU, 0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U, 0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU, 0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U, 0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU, 0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U, 0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U, 0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU, 0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU, 0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU, 0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U, 0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U, 0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU, 0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U, 0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU, 0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U, 0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU, 0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U, 0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU, 0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU, 0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U, 0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU, 0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U, 0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU, 0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U, 0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U, 0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U, 0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU, 0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU, 0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U, 0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU, 0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U, } }; static const word32 Td[5][256] = { { 0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U, 0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U, 0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U, 0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU, 0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U, 0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U, 0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU, 0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U, 0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU, 0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U, 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0x61dc20a2U, 0x5a774b69U, 0x1c121a16U, 0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU, 0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U, 0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU, 0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U, 0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U, 0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U, 0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU, 0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U, 0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U, 0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU, 0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U, 0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U, 0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U, 0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U, 0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U, 0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU, 0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U, 0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U, 0xbae79bd9U, 0x4a6f36ceU, 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0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U, 0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U, 0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U, 0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U, 0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U, 0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U, 0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU, 0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU, 0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU, 0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU, 0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U, 0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U, 0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U, 0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU, 0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U, 0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U, }, { 0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U, 0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U, 0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU, 0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU, 0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U, 0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U, 0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U, 0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU, 0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U, 0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU, 0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU, 0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU, 0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U, 0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U, 0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U, 0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U, 0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U, 0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U, 0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU, 0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U, 0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U, 0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU, 0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U, 0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U, 0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U, 0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU, 0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U, 0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U, 0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU, 0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U, 0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U, 0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU, 0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U, 0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU, 0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU, 0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U, 0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U, 0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U, 0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U, 0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU, 0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U, 0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U, 0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU, 0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU, 0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU, 0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U, 0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU, 0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U, 0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U, 0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U, 0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U, 0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU, 0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U, 0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU, 0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU, 0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU, 0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU, 0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U, 0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU, 0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U, 0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU, 0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U, 0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U, 0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU, } }; #define GETBYTE(x, y) (word32)((byte)((x) >> (8 * (y)))) #ifdef CYASSL_AESNI #ifndef _MSC_VER #define cpuid(func,ax,bx,cx,dx)\ __asm__ __volatile__ ("cpuid":\ "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) : "a" (func)); #else #define cpuid(func,ax,bx,cx,dx)\ __asm mov eax, func \ __asm cpuid \ __asm mov ax, eax \ __asm mov bx, ebx \ __asm mov cx, ecx \ __asm mov dx, edx #endif /* _MSC_VER */ static int Check_CPU_support_AES(void) { unsigned int a,b,c,d; cpuid(1,a,b,c,d); if (c & 0x2000000) return 1; return 0; } static int checkAESNI = 0; static int haveAESNI = 0; /* tell C compiler these are asm functions in case any mix up of ABI underscore prefix between clang/gcc/llvm etc */ void AES_CBC_encrypt(const unsigned char* in, unsigned char* out, unsigned char* ivec, unsigned long length, const unsigned char* KS, int nr) asm ("AES_CBC_encrypt"); void AES_CBC_decrypt(const unsigned char* in, unsigned char* out, unsigned char* ivec, unsigned long length, const unsigned char* KS, int nr) asm ("AES_CBC_decrypt"); void AES_ECB_encrypt(const unsigned char* in, unsigned char* out, unsigned long length, const unsigned char* KS, int nr) asm ("AES_ECB_encrypt"); void AES_ECB_decrypt(const unsigned char* in, unsigned char* out, unsigned long length, const unsigned char* KS, int nr) asm ("AES_ECB_decrypt"); void AES_128_Key_Expansion(const unsigned char* userkey, unsigned char* key_schedule) asm ("AES_128_Key_Expansion"); void AES_192_Key_Expansion(const unsigned char* userkey, unsigned char* key_schedule) asm ("AES_192_Key_Expansion"); void AES_256_Key_Expansion(const unsigned char* userkey, unsigned char* key_schedule) asm ("AES_256_Key_Expansion"); static int AES_set_encrypt_key(const unsigned char *userKey, const int bits, Aes* aes) { if (!userKey || !aes) return BAD_FUNC_ARG; if (bits == 128) { AES_128_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 10; return 0; } else if (bits == 192) { AES_192_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 12; return 0; } else if (bits == 256) { AES_256_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 14; return 0; } return BAD_FUNC_ARG; } static int AES_set_decrypt_key(const unsigned char* userKey, const int bits, Aes* aes) { int nr; Aes temp_key; __m128i *Key_Schedule = (__m128i*)aes->key; __m128i *Temp_Key_Schedule = (__m128i*)temp_key.key; if (!userKey || !aes) return BAD_FUNC_ARG; if (AES_set_encrypt_key(userKey,bits,&temp_key) == BAD_FUNC_ARG) return BAD_FUNC_ARG; nr = temp_key.rounds; aes->rounds = nr; Key_Schedule[nr] = Temp_Key_Schedule[0]; Key_Schedule[nr-1] = _mm_aesimc_si128(Temp_Key_Schedule[1]); Key_Schedule[nr-2] = _mm_aesimc_si128(Temp_Key_Schedule[2]); Key_Schedule[nr-3] = _mm_aesimc_si128(Temp_Key_Schedule[3]); Key_Schedule[nr-4] = _mm_aesimc_si128(Temp_Key_Schedule[4]); Key_Schedule[nr-5] = _mm_aesimc_si128(Temp_Key_Schedule[5]); Key_Schedule[nr-6] = _mm_aesimc_si128(Temp_Key_Schedule[6]); Key_Schedule[nr-7] = _mm_aesimc_si128(Temp_Key_Schedule[7]); Key_Schedule[nr-8] = _mm_aesimc_si128(Temp_Key_Schedule[8]); Key_Schedule[nr-9] = _mm_aesimc_si128(Temp_Key_Schedule[9]); if(nr>10) { Key_Schedule[nr-10] = _mm_aesimc_si128(Temp_Key_Schedule[10]); Key_Schedule[nr-11] = _mm_aesimc_si128(Temp_Key_Schedule[11]); } if(nr>12) { Key_Schedule[nr-12] = _mm_aesimc_si128(Temp_Key_Schedule[12]); Key_Schedule[nr-13] = _mm_aesimc_si128(Temp_Key_Schedule[13]); } Key_Schedule[0] = Temp_Key_Schedule[nr]; return 0; } #endif /* CYASSL_AESNI */ static int AesSetKeyLocal(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { word32 temp, *rk = aes->key; unsigned int i = 0; #ifdef CYASSL_AESNI aes->use_aesni = 0; #endif /* CYASSL_AESNI */ #ifdef CYASSL_AES_COUNTER aes->left = 0; #endif /* CYASSL_AES_COUNTER */ aes->rounds = keylen/4 + 6; XMEMCPY(rk, userKey, keylen); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(rk, rk, keylen); #endif #ifdef CYASSL_PIC32MZ_CRYPT { word32 *akey1 = aes->key_ce; word32 *areg = aes->iv_ce ; aes->keylen = keylen ; XMEMCPY(akey1, userKey, keylen); if (iv) XMEMCPY(areg, iv, AES_BLOCK_SIZE); else XMEMSET(areg, 0, AES_BLOCK_SIZE); } #endif switch(keylen) { case 16: while (1) { temp = rk[3]; rk[4] = rk[0] ^ (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^ (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^ (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^ (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^ rcon[i]; rk[5] = rk[1] ^ rk[4]; rk[6] = rk[2] ^ rk[5]; rk[7] = rk[3] ^ rk[6]; if (++i == 10) break; rk += 4; } break; case 24: while (1) /* for (;;) here triggers a bug in VC60 SP4 w/ Pro Pack */ { temp = rk[ 5]; rk[ 6] = rk[ 0] ^ (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^ (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^ (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^ (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^ rcon[i]; rk[ 7] = rk[ 1] ^ rk[ 6]; rk[ 8] = rk[ 2] ^ rk[ 7]; rk[ 9] = rk[ 3] ^ rk[ 8]; if (++i == 8) break; rk[10] = rk[ 4] ^ rk[ 9]; rk[11] = rk[ 5] ^ rk[10]; rk += 6; } break; case 32: while (1) { temp = rk[ 7]; rk[ 8] = rk[ 0] ^ (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^ (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^ (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^ (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^ rcon[i]; rk[ 9] = rk[ 1] ^ rk[ 8]; rk[10] = rk[ 2] ^ rk[ 9]; rk[11] = rk[ 3] ^ rk[10]; if (++i == 7) break; temp = rk[11]; rk[12] = rk[ 4] ^ (Te[4][GETBYTE(temp, 3)] & 0xff000000) ^ (Te[4][GETBYTE(temp, 2)] & 0x00ff0000) ^ (Te[4][GETBYTE(temp, 1)] & 0x0000ff00) ^ (Te[4][GETBYTE(temp, 0)] & 0x000000ff); rk[13] = rk[ 5] ^ rk[12]; rk[14] = rk[ 6] ^ rk[13]; rk[15] = rk[ 7] ^ rk[14]; rk += 8; } break; default: return BAD_FUNC_ARG; } if (dir == AES_DECRYPTION) { unsigned int j; rk = aes->key; /* invert the order of the round keys: */ for (i = 0, j = 4* aes->rounds; i < j; i += 4, j -= 4) { temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp; temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp; temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp; temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp; } /* apply the inverse MixColumn transform to all round keys but the first and the last: */ for (i = 1; i < aes->rounds; i++) { rk += 4; rk[0] = Td[0][Te[4][GETBYTE(rk[0], 3)] & 0xff] ^ Td[1][Te[4][GETBYTE(rk[0], 2)] & 0xff] ^ Td[2][Te[4][GETBYTE(rk[0], 1)] & 0xff] ^ Td[3][Te[4][GETBYTE(rk[0], 0)] & 0xff]; rk[1] = Td[0][Te[4][GETBYTE(rk[1], 3)] & 0xff] ^ Td[1][Te[4][GETBYTE(rk[1], 2)] & 0xff] ^ Td[2][Te[4][GETBYTE(rk[1], 1)] & 0xff] ^ Td[3][Te[4][GETBYTE(rk[1], 0)] & 0xff]; rk[2] = Td[0][Te[4][GETBYTE(rk[2], 3)] & 0xff] ^ Td[1][Te[4][GETBYTE(rk[2], 2)] & 0xff] ^ Td[2][Te[4][GETBYTE(rk[2], 1)] & 0xff] ^ Td[3][Te[4][GETBYTE(rk[2], 0)] & 0xff]; rk[3] = Td[0][Te[4][GETBYTE(rk[3], 3)] & 0xff] ^ Td[1][Te[4][GETBYTE(rk[3], 2)] & 0xff] ^ Td[2][Te[4][GETBYTE(rk[3], 1)] & 0xff] ^ Td[3][Te[4][GETBYTE(rk[3], 0)] & 0xff]; } } return AesSetIV(aes, iv); } int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) return BAD_FUNC_ARG; #ifdef HAVE_CAVIUM if (aes->magic == CYASSL_AES_CAVIUM_MAGIC) return AesCaviumSetKey(aes, userKey, keylen, iv); #endif #ifdef CYASSL_AESNI if (checkAESNI == 0) { haveAESNI = Check_CPU_support_AES(); checkAESNI = 1; } if (haveAESNI) { aes->use_aesni = 1; if (iv) XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); if (dir == AES_ENCRYPTION) return AES_set_encrypt_key(userKey, keylen * 8, aes); else return AES_set_decrypt_key(userKey, keylen * 8, aes); } #endif /* CYASSL_AESNI */ return AesSetKeyLocal(aes, userKey, keylen, iv, dir); } static void AesEncrypt(Aes* aes, const byte* inBlock, byte* outBlock) { word32 s0, s1, s2, s3; word32 t0, t1, t2, t3; word32 r = aes->rounds >> 1; const word32* rk = aes->key; if (r > 7 || r == 0) { CYASSL_MSG("AesEncrypt encountered improper key, set it up"); return; /* stop instead of segfaulting, set up your keys! */ } #ifdef CYASSL_AESNI if (haveAESNI && aes->use_aesni) { #ifdef DEBUG_AESNI printf("about to aes encrypt\n"); printf("in = %p\n", inBlock); printf("out = %p\n", outBlock); printf("aes->key = %p\n", aes->key); printf("aes->rounds = %d\n", aes->rounds); printf("sz = %d\n", AES_BLOCK_SIZE); #endif /* check alignment, decrypt doesn't need alignment */ if ((word)inBlock % 16) { #ifndef NO_CYASSL_ALLOC_ALIGN byte* tmp = (byte*)XMALLOC(AES_BLOCK_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER); if (tmp == NULL) return; XMEMCPY(tmp, inBlock, AES_BLOCK_SIZE); AES_ECB_encrypt(tmp, tmp, AES_BLOCK_SIZE, (byte*)aes->key, aes->rounds); XMEMCPY(outBlock, tmp, AES_BLOCK_SIZE); XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER); return; #else CYASSL_MSG("AES-ECB encrypt with bad alignment"); return; #endif } AES_ECB_encrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key, aes->rounds); return; } else { #ifdef DEBUG_AESNI printf("Skipping AES-NI\n"); #endif } #endif /* * map byte array block to cipher state * and add initial round key: */ XMEMCPY(&s0, inBlock, sizeof(s0)); XMEMCPY(&s1, inBlock + sizeof(s0), sizeof(s1)); XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2)); XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3)); #ifdef LITTLE_ENDIAN_ORDER s0 = ByteReverseWord32(s0); s1 = ByteReverseWord32(s1); s2 = ByteReverseWord32(s2); s3 = ByteReverseWord32(s3); #endif s0 ^= rk[0]; s1 ^= rk[1]; s2 ^= rk[2]; s3 ^= rk[3]; /* * Nr - 1 full rounds: */ for (;;) { t0 = Te[0][GETBYTE(s0, 3)] ^ Te[1][GETBYTE(s1, 2)] ^ Te[2][GETBYTE(s2, 1)] ^ Te[3][GETBYTE(s3, 0)] ^ rk[4]; t1 = Te[0][GETBYTE(s1, 3)] ^ Te[1][GETBYTE(s2, 2)] ^ Te[2][GETBYTE(s3, 1)] ^ Te[3][GETBYTE(s0, 0)] ^ rk[5]; t2 = Te[0][GETBYTE(s2, 3)] ^ Te[1][GETBYTE(s3, 2)] ^ Te[2][GETBYTE(s0, 1)] ^ Te[3][GETBYTE(s1, 0)] ^ rk[6]; t3 = Te[0][GETBYTE(s3, 3)] ^ Te[1][GETBYTE(s0, 2)] ^ Te[2][GETBYTE(s1, 1)] ^ Te[3][GETBYTE(s2, 0)] ^ rk[7]; rk += 8; if (--r == 0) { break; } s0 = Te[0][GETBYTE(t0, 3)] ^ Te[1][GETBYTE(t1, 2)] ^ Te[2][GETBYTE(t2, 1)] ^ Te[3][GETBYTE(t3, 0)] ^ rk[0]; s1 = Te[0][GETBYTE(t1, 3)] ^ Te[1][GETBYTE(t2, 2)] ^ Te[2][GETBYTE(t3, 1)] ^ Te[3][GETBYTE(t0, 0)] ^ rk[1]; s2 = Te[0][GETBYTE(t2, 3)] ^ Te[1][GETBYTE(t3, 2)] ^ Te[2][GETBYTE(t0, 1)] ^ Te[3][GETBYTE(t1, 0)] ^ rk[2]; s3 = Te[0][GETBYTE(t3, 3)] ^ Te[1][GETBYTE(t0, 2)] ^ Te[2][GETBYTE(t1, 1)] ^ Te[3][GETBYTE(t2, 0)] ^ rk[3]; } /* * apply last round and * map cipher state to byte array block: */ s0 = (Te[4][GETBYTE(t0, 3)] & 0xff000000) ^ (Te[4][GETBYTE(t1, 2)] & 0x00ff0000) ^ (Te[4][GETBYTE(t2, 1)] & 0x0000ff00) ^ (Te[4][GETBYTE(t3, 0)] & 0x000000ff) ^ rk[0]; s1 = (Te[4][GETBYTE(t1, 3)] & 0xff000000) ^ (Te[4][GETBYTE(t2, 2)] & 0x00ff0000) ^ (Te[4][GETBYTE(t3, 1)] & 0x0000ff00) ^ (Te[4][GETBYTE(t0, 0)] & 0x000000ff) ^ rk[1]; s2 = (Te[4][GETBYTE(t2, 3)] & 0xff000000) ^ (Te[4][GETBYTE(t3, 2)] & 0x00ff0000) ^ (Te[4][GETBYTE(t0, 1)] & 0x0000ff00) ^ (Te[4][GETBYTE(t1, 0)] & 0x000000ff) ^ rk[2]; s3 = (Te[4][GETBYTE(t3, 3)] & 0xff000000) ^ (Te[4][GETBYTE(t0, 2)] & 0x00ff0000) ^ (Te[4][GETBYTE(t1, 1)] & 0x0000ff00) ^ (Te[4][GETBYTE(t2, 0)] & 0x000000ff) ^ rk[3]; /* write out */ #ifdef LITTLE_ENDIAN_ORDER s0 = ByteReverseWord32(s0); s1 = ByteReverseWord32(s1); s2 = ByteReverseWord32(s2); s3 = ByteReverseWord32(s3); #endif XMEMCPY(outBlock, &s0, sizeof(s0)); XMEMCPY(outBlock + sizeof(s0), &s1, sizeof(s1)); XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2)); XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3)); } static void AesDecrypt(Aes* aes, const byte* inBlock, byte* outBlock) { word32 s0, s1, s2, s3; word32 t0, t1, t2, t3; word32 r = aes->rounds >> 1; const word32* rk = aes->key; if (r > 7 || r == 0) { CYASSL_MSG("AesDecrypt encountered improper key, set it up"); return; /* stop instead of segfaulting, set up your keys! */ } #ifdef CYASSL_AESNI if (haveAESNI && aes->use_aesni) { #ifdef DEBUG_AESNI printf("about to aes decrypt\n"); printf("in = %p\n", inBlock); printf("out = %p\n", outBlock); printf("aes->key = %p\n", aes->key); printf("aes->rounds = %d\n", aes->rounds); printf("sz = %d\n", AES_BLOCK_SIZE); #endif /* if input and output same will overwrite input iv */ XMEMCPY(aes->tmp, inBlock, AES_BLOCK_SIZE); AES_ECB_decrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key, aes->rounds); return; } else { #ifdef DEBUG_AESNI printf("Skipping AES-NI\n"); #endif } #endif /* * map byte array block to cipher state * and add initial round key: */ XMEMCPY(&s0, inBlock, sizeof(s0)); XMEMCPY(&s1, inBlock + sizeof(s0), sizeof(s1)); XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2)); XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3)); #ifdef LITTLE_ENDIAN_ORDER s0 = ByteReverseWord32(s0); s1 = ByteReverseWord32(s1); s2 = ByteReverseWord32(s2); s3 = ByteReverseWord32(s3); #endif s0 ^= rk[0]; s1 ^= rk[1]; s2 ^= rk[2]; s3 ^= rk[3]; /* * Nr - 1 full rounds: */ for (;;) { t0 = Td[0][GETBYTE(s0, 3)] ^ Td[1][GETBYTE(s3, 2)] ^ Td[2][GETBYTE(s2, 1)] ^ Td[3][GETBYTE(s1, 0)] ^ rk[4]; t1 = Td[0][GETBYTE(s1, 3)] ^ Td[1][GETBYTE(s0, 2)] ^ Td[2][GETBYTE(s3, 1)] ^ Td[3][GETBYTE(s2, 0)] ^ rk[5]; t2 = Td[0][GETBYTE(s2, 3)] ^ Td[1][GETBYTE(s1, 2)] ^ Td[2][GETBYTE(s0, 1)] ^ Td[3][GETBYTE(s3, 0)] ^ rk[6]; t3 = Td[0][GETBYTE(s3, 3)] ^ Td[1][GETBYTE(s2, 2)] ^ Td[2][GETBYTE(s1, 1)] ^ Td[3][GETBYTE(s0, 0)] ^ rk[7]; rk += 8; if (--r == 0) { break; } s0 = Td[0][GETBYTE(t0, 3)] ^ Td[1][GETBYTE(t3, 2)] ^ Td[2][GETBYTE(t2, 1)] ^ Td[3][GETBYTE(t1, 0)] ^ rk[0]; s1 = Td[0][GETBYTE(t1, 3)] ^ Td[1][GETBYTE(t0, 2)] ^ Td[2][GETBYTE(t3, 1)] ^ Td[3][GETBYTE(t2, 0)] ^ rk[1]; s2 = Td[0][GETBYTE(t2, 3)] ^ Td[1][GETBYTE(t1, 2)] ^ Td[2][GETBYTE(t0, 1)] ^ Td[3][GETBYTE(t3, 0)] ^ rk[2]; s3 = Td[0][GETBYTE(t3, 3)] ^ Td[1][GETBYTE(t2, 2)] ^ Td[2][GETBYTE(t1, 1)] ^ Td[3][GETBYTE(t0, 0)] ^ rk[3]; } /* * apply last round and * map cipher state to byte array block: */ s0 = (Td[4][GETBYTE(t0, 3)] & 0xff000000) ^ (Td[4][GETBYTE(t3, 2)] & 0x00ff0000) ^ (Td[4][GETBYTE(t2, 1)] & 0x0000ff00) ^ (Td[4][GETBYTE(t1, 0)] & 0x000000ff) ^ rk[0]; s1 = (Td[4][GETBYTE(t1, 3)] & 0xff000000) ^ (Td[4][GETBYTE(t0, 2)] & 0x00ff0000) ^ (Td[4][GETBYTE(t3, 1)] & 0x0000ff00) ^ (Td[4][GETBYTE(t2, 0)] & 0x000000ff) ^ rk[1]; s2 = (Td[4][GETBYTE(t2, 3)] & 0xff000000) ^ (Td[4][GETBYTE(t1, 2)] & 0x00ff0000) ^ (Td[4][GETBYTE(t0, 1)] & 0x0000ff00) ^ (Td[4][GETBYTE(t3, 0)] & 0x000000ff) ^ rk[2]; s3 = (Td[4][GETBYTE(t3, 3)] & 0xff000000) ^ (Td[4][GETBYTE(t2, 2)] & 0x00ff0000) ^ (Td[4][GETBYTE(t1, 1)] & 0x0000ff00) ^ (Td[4][GETBYTE(t0, 0)] & 0x000000ff) ^ rk[3]; /* write out */ #ifdef LITTLE_ENDIAN_ORDER s0 = ByteReverseWord32(s0); s1 = ByteReverseWord32(s1); s2 = ByteReverseWord32(s2); s3 = ByteReverseWord32(s3); #endif XMEMCPY(outBlock, &s0, sizeof(s0)); XMEMCPY(outBlock + sizeof(s0), &s1, sizeof(s1)); XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2)); XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3)); } #ifndef HAVE_AES_ENGINE int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { word32 blocks = sz / AES_BLOCK_SIZE; #ifdef HAVE_CAVIUM if (aes->magic == CYASSL_AES_CAVIUM_MAGIC) return AesCaviumCbcEncrypt(aes, out, in, sz); #endif #ifdef CYASSL_AESNI if (haveAESNI) { #ifdef DEBUG_AESNI printf("about to aes cbc encrypt\n"); printf("in = %p\n", in); printf("out = %p\n", out); printf("aes->key = %p\n", aes->key); printf("aes->reg = %p\n", aes->reg); printf("aes->rounds = %d\n", aes->rounds); printf("sz = %d\n", sz); #endif /* check alignment, decrypt doesn't need alignment */ if ((word)in % 16) { #ifndef NO_CYASSL_ALLOC_ALIGN byte* tmp = (byte*)XMALLOC(sz, NULL, DYNAMIC_TYPE_TMP_BUFFER); if (tmp == NULL) return MEMORY_E; XMEMCPY(tmp, in, sz); AES_CBC_encrypt(tmp, tmp, (byte*)aes->reg, sz, (byte*)aes->key, aes->rounds); /* store iv for next call */ XMEMCPY(aes->reg, tmp + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); XMEMCPY(out, tmp, sz); XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER); return 0; #else return BAD_ALIGN_E; #endif } AES_CBC_encrypt(in, out, (byte*)aes->reg, sz, (byte*)aes->key, aes->rounds); /* store iv for next call */ XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); return 0; } #endif while (blocks--) { xorbuf((byte*)aes->reg, in, AES_BLOCK_SIZE); AesEncrypt(aes, (byte*)aes->reg, (byte*)aes->reg); XMEMCPY(out, aes->reg, AES_BLOCK_SIZE); out += AES_BLOCK_SIZE; in += AES_BLOCK_SIZE; } return 0; } int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) { word32 blocks = sz / AES_BLOCK_SIZE; #ifdef HAVE_CAVIUM if (aes->magic == CYASSL_AES_CAVIUM_MAGIC) return AesCaviumCbcDecrypt(aes, out, in, sz); #endif #ifdef CYASSL_AESNI if (haveAESNI) { #ifdef DEBUG_AESNI printf("about to aes cbc decrypt\n"); printf("in = %p\n", in); printf("out = %p\n", out); printf("aes->key = %p\n", aes->key); printf("aes->reg = %p\n", aes->reg); printf("aes->rounds = %d\n", aes->rounds); printf("sz = %d\n", sz); #endif /* if input and output same will overwrite input iv */ XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); AES_CBC_decrypt(in, out, (byte*)aes->reg, sz, (byte*)aes->key, aes->rounds); /* store iv for next call */ XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); return 0; } #endif while (blocks--) { XMEMCPY(aes->tmp, in, AES_BLOCK_SIZE); AesDecrypt(aes, (byte*)aes->tmp, out); xorbuf(out, (byte*)aes->reg, AES_BLOCK_SIZE); XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); out += AES_BLOCK_SIZE; in += AES_BLOCK_SIZE; } return 0; } #endif #ifdef CYASSL_AES_DIRECT /* Allow direct access to one block encrypt */ void AesEncryptDirect(Aes* aes, byte* out, const byte* in) { return AesEncrypt(aes, in, out); } /* Allow direct access to one block decrypt */ void AesDecryptDirect(Aes* aes, byte* out, const byte* in) { return AesDecrypt(aes, in, out); } #endif /* CYASSL_AES_DIRECT */ #if defined(CYASSL_AES_DIRECT) || defined(CYASSL_AES_COUNTER) /* AES-CTR and AES-DIRECT need to use this for key setup, no aesni yet */ int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, int dir) { return AesSetKeyLocal(aes, userKey, keylen, iv, dir); } #endif /* CYASSL_AES_DIRECT || CYASSL_AES_COUNTER */ #if defined(CYASSL_AES_COUNTER) && !defined(HAVE_AES_ENGINE) /* Increment AES counter */ static INLINE void IncrementAesCounter(byte* inOutCtr) { int i; /* in network byte order so start at end and work back */ for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) { if (++inOutCtr[i]) /* we're done unless we overflow */ return; } } void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { byte* tmp = (byte*)aes->tmp + AES_BLOCK_SIZE - aes->left; /* consume any unused bytes left in aes->tmp */ while (aes->left && sz) { *(out++) = *(in++) ^ *(tmp++); aes->left--; sz--; } /* do as many block size ops as possible */ while (sz >= AES_BLOCK_SIZE) { AesEncrypt(aes, (byte*)aes->reg, out); IncrementAesCounter((byte*)aes->reg); xorbuf(out, in, AES_BLOCK_SIZE); out += AES_BLOCK_SIZE; in += AES_BLOCK_SIZE; sz -= AES_BLOCK_SIZE; aes->left = 0; } /* handle non block size remaining and sotre unused byte count in left */ if (sz) { AesEncrypt(aes, (byte*)aes->reg, (byte*)aes->tmp); IncrementAesCounter((byte*)aes->reg); aes->left = AES_BLOCK_SIZE; tmp = (byte*)aes->tmp; while (sz--) { *(out++) = *(in++) ^ *(tmp++); aes->left--; } } } #endif /* CYASSL_AES_COUNTER */ #ifdef HAVE_AESGCM /* * The IV for AES GCM, stored in struct Aes's member reg, is comprised of * three parts in order: * 1. The implicit IV. This is generated from the PRF using the shared * secrets between endpoints. It is 4 bytes long. * 2. The explicit IV. This is set by the user of the AES. It needs to be * unique for each call to encrypt. The explicit IV is shared with the * other end of the transaction in the clear. * 3. The counter. Each block of data is encrypted with its own sequence * number counter. */ enum { CTR_SZ = 4 }; static INLINE void InitGcmCounter(byte* inOutCtr) { inOutCtr[AES_BLOCK_SIZE - 4] = 0; inOutCtr[AES_BLOCK_SIZE - 3] = 0; inOutCtr[AES_BLOCK_SIZE - 2] = 0; inOutCtr[AES_BLOCK_SIZE - 1] = 1; } static INLINE void IncrementGcmCounter(byte* inOutCtr) { int i; /* in network byte order so start at end and work back */ for (i = AES_BLOCK_SIZE - 1; i >= AES_BLOCK_SIZE - CTR_SZ; i--) { if (++inOutCtr[i]) /* we're done unless we overflow */ return; } } #if defined(GCM_SMALL) || defined(GCM_TABLE) static INLINE void FlattenSzInBits(byte* buf, word32 sz) { /* Multiply the sz by 8 */ word32 szHi = (sz >> (8*sizeof(sz) - 3)); sz <<= 3; /* copy over the words of the sz into the destination buffer */ buf[0] = (szHi >> 24) & 0xff; buf[1] = (szHi >> 16) & 0xff; buf[2] = (szHi >> 8) & 0xff; buf[3] = szHi & 0xff; buf[4] = (sz >> 24) & 0xff; buf[5] = (sz >> 16) & 0xff; buf[6] = (sz >> 8) & 0xff; buf[7] = sz & 0xff; } static INLINE void RIGHTSHIFTX(byte* x) { int i; int carryOut = 0; int carryIn = 0; int borrow = x[15] & 0x01; for (i = 0; i < AES_BLOCK_SIZE; i++) { carryOut = x[i] & 0x01; x[i] = (x[i] >> 1) | (carryIn ? 0x80 : 0); carryIn = carryOut; } if (borrow) x[0] ^= 0xE1; } #endif /* defined(GCM_SMALL) || defined(GCM_TABLE) */ #ifdef GCM_TABLE static void GenerateM0(Aes* aes) { int i, j; byte (*m)[AES_BLOCK_SIZE] = aes->M0; XMEMCPY(m[128], aes->H, AES_BLOCK_SIZE); for (i = 64; i > 0; i /= 2) { XMEMCPY(m[i], m[i*2], AES_BLOCK_SIZE); RIGHTSHIFTX(m[i]); } for (i = 2; i < 256; i *= 2) { for (j = 1; j < i; j++) { XMEMCPY(m[i+j], m[i], AES_BLOCK_SIZE); xorbuf(m[i+j], m[j], AES_BLOCK_SIZE); } } XMEMSET(m[0], 0, AES_BLOCK_SIZE); } #endif /* GCM_TABLE */ void AesGcmSetKey(Aes* aes, const byte* key, word32 len) { byte iv[AES_BLOCK_SIZE]; if (!((len == 16) || (len == 24) || (len == 32))) return; XMEMSET(iv, 0, AES_BLOCK_SIZE); AesSetKey(aes, key, len, iv, AES_ENCRYPTION); AesEncrypt(aes, iv, aes->H); #ifdef GCM_TABLE GenerateM0(aes); #endif /* GCM_TABLE */ } #if defined(GCM_SMALL) static void GMULT(byte* X, byte* Y) { byte Z[AES_BLOCK_SIZE]; byte V[AES_BLOCK_SIZE]; int i, j; XMEMSET(Z, 0, AES_BLOCK_SIZE); XMEMCPY(V, X, AES_BLOCK_SIZE); for (i = 0; i < AES_BLOCK_SIZE; i++) { byte y = Y[i]; for (j = 0; j < 8; j++) { if (y & 0x80) { xorbuf(Z, V, AES_BLOCK_SIZE); } RIGHTSHIFTX(V); y = y << 1; } } XMEMCPY(X, Z, AES_BLOCK_SIZE); } static void GHASH(Aes* aes, const byte* a, word32 aSz, const byte* c, word32 cSz, byte* s, word32 sSz) { byte x[AES_BLOCK_SIZE]; byte scratch[AES_BLOCK_SIZE]; word32 blocks, partial; byte* h = aes->H; XMEMSET(x, 0, AES_BLOCK_SIZE); /* Hash in A, the Additional Authentication Data */ if (aSz != 0 && a != NULL) { blocks = aSz / AES_BLOCK_SIZE; partial = aSz % AES_BLOCK_SIZE; while (blocks--) { xorbuf(x, a, AES_BLOCK_SIZE); GMULT(x, h); a += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(scratch, 0, AES_BLOCK_SIZE); XMEMCPY(scratch, a, partial); xorbuf(x, scratch, AES_BLOCK_SIZE); GMULT(x, h); } } /* Hash in C, the Ciphertext */ if (cSz != 0 && c != NULL) { blocks = cSz / AES_BLOCK_SIZE; partial = cSz % AES_BLOCK_SIZE; while (blocks--) { xorbuf(x, c, AES_BLOCK_SIZE); GMULT(x, h); c += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(scratch, 0, AES_BLOCK_SIZE); XMEMCPY(scratch, c, partial); xorbuf(x, scratch, AES_BLOCK_SIZE); GMULT(x, h); } } /* Hash in the lengths of A and C in bits */ FlattenSzInBits(&scratch[0], aSz); FlattenSzInBits(&scratch[8], cSz); xorbuf(x, scratch, AES_BLOCK_SIZE); GMULT(x, h); /* Copy the result into s. */ XMEMCPY(s, x, sSz); } /* end GCM_SMALL */ #elif defined(GCM_TABLE) static const byte R[256][2] = { {0x00, 0x00}, {0x01, 0xc2}, {0x03, 0x84}, {0x02, 0x46}, {0x07, 0x08}, {0x06, 0xca}, {0x04, 0x8c}, {0x05, 0x4e}, {0x0e, 0x10}, {0x0f, 0xd2}, {0x0d, 0x94}, {0x0c, 0x56}, {0x09, 0x18}, {0x08, 0xda}, {0x0a, 0x9c}, {0x0b, 0x5e}, {0x1c, 0x20}, {0x1d, 0xe2}, {0x1f, 0xa4}, {0x1e, 0x66}, {0x1b, 0x28}, {0x1a, 0xea}, {0x18, 0xac}, {0x19, 0x6e}, {0x12, 0x30}, {0x13, 0xf2}, {0x11, 0xb4}, {0x10, 0x76}, {0x15, 0x38}, {0x14, 0xfa}, {0x16, 0xbc}, {0x17, 0x7e}, {0x38, 0x40}, {0x39, 0x82}, {0x3b, 0xc4}, {0x3a, 0x06}, {0x3f, 0x48}, {0x3e, 0x8a}, {0x3c, 0xcc}, {0x3d, 0x0e}, {0x36, 0x50}, {0x37, 0x92}, {0x35, 0xd4}, {0x34, 0x16}, {0x31, 0x58}, {0x30, 0x9a}, {0x32, 0xdc}, {0x33, 0x1e}, {0x24, 0x60}, {0x25, 0xa2}, {0x27, 0xe4}, {0x26, 0x26}, {0x23, 0x68}, {0x22, 0xaa}, {0x20, 0xec}, {0x21, 0x2e}, {0x2a, 0x70}, {0x2b, 0xb2}, {0x29, 0xf4}, {0x28, 0x36}, {0x2d, 0x78}, {0x2c, 0xba}, {0x2e, 0xfc}, {0x2f, 0x3e}, {0x70, 0x80}, {0x71, 0x42}, {0x73, 0x04}, {0x72, 0xc6}, {0x77, 0x88}, {0x76, 0x4a}, {0x74, 0x0c}, {0x75, 0xce}, {0x7e, 0x90}, {0x7f, 0x52}, {0x7d, 0x14}, {0x7c, 0xd6}, {0x79, 0x98}, {0x78, 0x5a}, {0x7a, 0x1c}, {0x7b, 0xde}, {0x6c, 0xa0}, {0x6d, 0x62}, {0x6f, 0x24}, {0x6e, 0xe6}, {0x6b, 0xa8}, {0x6a, 0x6a}, {0x68, 0x2c}, {0x69, 0xee}, {0x62, 0xb0}, {0x63, 0x72}, {0x61, 0x34}, {0x60, 0xf6}, {0x65, 0xb8}, {0x64, 0x7a}, {0x66, 0x3c}, {0x67, 0xfe}, {0x48, 0xc0}, {0x49, 0x02}, {0x4b, 0x44}, {0x4a, 0x86}, {0x4f, 0xc8}, {0x4e, 0x0a}, {0x4c, 0x4c}, {0x4d, 0x8e}, {0x46, 0xd0}, {0x47, 0x12}, {0x45, 0x54}, {0x44, 0x96}, {0x41, 0xd8}, {0x40, 0x1a}, {0x42, 0x5c}, {0x43, 0x9e}, {0x54, 0xe0}, {0x55, 0x22}, {0x57, 0x64}, {0x56, 0xa6}, {0x53, 0xe8}, {0x52, 0x2a}, {0x50, 0x6c}, {0x51, 0xae}, {0x5a, 0xf0}, {0x5b, 0x32}, {0x59, 0x74}, {0x58, 0xb6}, {0x5d, 0xf8}, {0x5c, 0x3a}, {0x5e, 0x7c}, {0x5f, 0xbe}, {0xe1, 0x00}, {0xe0, 0xc2}, {0xe2, 0x84}, {0xe3, 0x46}, {0xe6, 0x08}, {0xe7, 0xca}, {0xe5, 0x8c}, {0xe4, 0x4e}, {0xef, 0x10}, {0xee, 0xd2}, {0xec, 0x94}, {0xed, 0x56}, {0xe8, 0x18}, {0xe9, 0xda}, {0xeb, 0x9c}, {0xea, 0x5e}, {0xfd, 0x20}, {0xfc, 0xe2}, {0xfe, 0xa4}, {0xff, 0x66}, {0xfa, 0x28}, {0xfb, 0xea}, {0xf9, 0xac}, {0xf8, 0x6e}, {0xf3, 0x30}, {0xf2, 0xf2}, {0xf0, 0xb4}, {0xf1, 0x76}, {0xf4, 0x38}, {0xf5, 0xfa}, {0xf7, 0xbc}, {0xf6, 0x7e}, {0xd9, 0x40}, {0xd8, 0x82}, {0xda, 0xc4}, {0xdb, 0x06}, {0xde, 0x48}, {0xdf, 0x8a}, {0xdd, 0xcc}, {0xdc, 0x0e}, {0xd7, 0x50}, {0xd6, 0x92}, {0xd4, 0xd4}, {0xd5, 0x16}, {0xd0, 0x58}, {0xd1, 0x9a}, {0xd3, 0xdc}, {0xd2, 0x1e}, {0xc5, 0x60}, {0xc4, 0xa2}, {0xc6, 0xe4}, {0xc7, 0x26}, {0xc2, 0x68}, {0xc3, 0xaa}, {0xc1, 0xec}, {0xc0, 0x2e}, {0xcb, 0x70}, {0xca, 0xb2}, {0xc8, 0xf4}, {0xc9, 0x36}, {0xcc, 0x78}, {0xcd, 0xba}, {0xcf, 0xfc}, {0xce, 0x3e}, {0x91, 0x80}, {0x90, 0x42}, {0x92, 0x04}, {0x93, 0xc6}, {0x96, 0x88}, {0x97, 0x4a}, {0x95, 0x0c}, {0x94, 0xce}, {0x9f, 0x90}, {0x9e, 0x52}, {0x9c, 0x14}, {0x9d, 0xd6}, {0x98, 0x98}, {0x99, 0x5a}, {0x9b, 0x1c}, {0x9a, 0xde}, {0x8d, 0xa0}, {0x8c, 0x62}, {0x8e, 0x24}, {0x8f, 0xe6}, {0x8a, 0xa8}, {0x8b, 0x6a}, {0x89, 0x2c}, {0x88, 0xee}, {0x83, 0xb0}, {0x82, 0x72}, {0x80, 0x34}, {0x81, 0xf6}, {0x84, 0xb8}, {0x85, 0x7a}, {0x87, 0x3c}, {0x86, 0xfe}, {0xa9, 0xc0}, {0xa8, 0x02}, {0xaa, 0x44}, {0xab, 0x86}, {0xae, 0xc8}, {0xaf, 0x0a}, {0xad, 0x4c}, {0xac, 0x8e}, {0xa7, 0xd0}, {0xa6, 0x12}, {0xa4, 0x54}, {0xa5, 0x96}, {0xa0, 0xd8}, {0xa1, 0x1a}, {0xa3, 0x5c}, {0xa2, 0x9e}, {0xb5, 0xe0}, {0xb4, 0x22}, {0xb6, 0x64}, {0xb7, 0xa6}, {0xb2, 0xe8}, {0xb3, 0x2a}, {0xb1, 0x6c}, {0xb0, 0xae}, {0xbb, 0xf0}, {0xba, 0x32}, {0xb8, 0x74}, {0xb9, 0xb6}, {0xbc, 0xf8}, {0xbd, 0x3a}, {0xbf, 0x7c}, {0xbe, 0xbe} }; static void GMULT(byte *x, byte m[256][AES_BLOCK_SIZE]) { int i, j; byte Z[AES_BLOCK_SIZE]; byte a; XMEMSET(Z, 0, sizeof(Z)); for (i = 15; i > 0; i--) { xorbuf(Z, m[x[i]], AES_BLOCK_SIZE); a = Z[15]; for (j = 15; j > 0; j--) { Z[j] = Z[j-1]; } Z[0] = R[a][0]; Z[1] ^= R[a][1]; } xorbuf(Z, m[x[0]], AES_BLOCK_SIZE); XMEMCPY(x, Z, AES_BLOCK_SIZE); } static void GHASH(Aes* aes, const byte* a, word32 aSz, const byte* c, word32 cSz, byte* s, word32 sSz) { byte x[AES_BLOCK_SIZE]; byte scratch[AES_BLOCK_SIZE]; word32 blocks, partial; XMEMSET(x, 0, AES_BLOCK_SIZE); /* Hash in A, the Additional Authentication Data */ if (aSz != 0 && a != NULL) { blocks = aSz / AES_BLOCK_SIZE; partial = aSz % AES_BLOCK_SIZE; while (blocks--) { xorbuf(x, a, AES_BLOCK_SIZE); GMULT(x, aes->M0); a += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(scratch, 0, AES_BLOCK_SIZE); XMEMCPY(scratch, a, partial); xorbuf(x, scratch, AES_BLOCK_SIZE); GMULT(x, aes->M0); } } /* Hash in C, the Ciphertext */ if (cSz != 0 && c != NULL) { blocks = cSz / AES_BLOCK_SIZE; partial = cSz % AES_BLOCK_SIZE; while (blocks--) { xorbuf(x, c, AES_BLOCK_SIZE); GMULT(x, aes->M0); c += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(scratch, 0, AES_BLOCK_SIZE); XMEMCPY(scratch, c, partial); xorbuf(x, scratch, AES_BLOCK_SIZE); GMULT(x, aes->M0); } } /* Hash in the lengths of A and C in bits */ FlattenSzInBits(&scratch[0], aSz); FlattenSzInBits(&scratch[8], cSz); xorbuf(x, scratch, AES_BLOCK_SIZE); GMULT(x, aes->M0); /* Copy the result into s. */ XMEMCPY(s, x, sSz); } /* end GCM_TABLE */ #elif defined(WORD64_AVAILABLE) && !defined(GCM_WORD32) static void GMULT(word64* X, word64* Y) { word64 Z[2] = {0,0}; word64 V[2] ; int i, j; V[0] = X[0] ; V[1] = X[1] ; for (i = 0; i < 2; i++) { word64 y = Y[i]; for (j = 0; j < 64; j++) { if (y & 0x8000000000000000) { Z[0] ^= V[0]; Z[1] ^= V[1]; } if (V[1] & 0x0000000000000001) { V[1] >>= 1; V[1] |= ((V[0] & 0x0000000000000001) ? 0x8000000000000000 : 0); V[0] >>= 1; V[0] ^= 0xE100000000000000; } else { V[1] >>= 1; V[1] |= ((V[0] & 0x0000000000000001) ? 0x8000000000000000 : 0); V[0] >>= 1; } y <<= 1; } } X[0] = Z[0]; X[1] = Z[1]; } static void GHASH(Aes* aes, const byte* a, word32 aSz, const byte* c, word32 cSz, byte* s, word32 sSz) { word64 x[2] = {0,0}; word32 blocks, partial; word64 bigH[2]; XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords64(bigH, bigH, AES_BLOCK_SIZE); #endif /* Hash in A, the Additional Authentication Data */ if (aSz != 0 && a != NULL) { word64 bigA[2]; blocks = aSz / AES_BLOCK_SIZE; partial = aSz % AES_BLOCK_SIZE; while (blocks--) { XMEMCPY(bigA, a, AES_BLOCK_SIZE); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE); #endif x[0] ^= bigA[0]; x[1] ^= bigA[1]; GMULT(x, bigH); a += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(bigA, 0, AES_BLOCK_SIZE); XMEMCPY(bigA, a, partial); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE); #endif x[0] ^= bigA[0]; x[1] ^= bigA[1]; GMULT(x, bigH); } } /* Hash in C, the Ciphertext */ if (cSz != 0 && c != NULL) { word64 bigC[2]; blocks = cSz / AES_BLOCK_SIZE; partial = cSz % AES_BLOCK_SIZE; while (blocks--) { XMEMCPY(bigC, c, AES_BLOCK_SIZE); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE); #endif x[0] ^= bigC[0]; x[1] ^= bigC[1]; GMULT(x, bigH); c += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(bigC, 0, AES_BLOCK_SIZE); XMEMCPY(bigC, c, partial); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE); #endif x[0] ^= bigC[0]; x[1] ^= bigC[1]; GMULT(x, bigH); } } /* Hash in the lengths in bits of A and C */ { word64 len[2] ; len[0] = aSz ; len[1] = cSz; /* Lengths are in bytes. Convert to bits. */ len[0] *= 8; len[1] *= 8; x[0] ^= len[0]; x[1] ^= len[1]; GMULT(x, bigH); } #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords64(x, x, AES_BLOCK_SIZE); #endif XMEMCPY(s, x, sSz); } /* end defined(WORD64_AVAILABLE) && !defined(GCM_WORD32) */ #else /* GCM_WORD32 */ static void GMULT(word32* X, word32* Y) { word32 Z[4] = {0,0,0,0}; word32 V[4] ; int i, j; V[0] = X[0]; V[1] = X[1]; V[2] = X[2]; V[3] = X[3]; for (i = 0; i < 4; i++) { word32 y = Y[i]; for (j = 0; j < 32; j++) { if (y & 0x80000000) { Z[0] ^= V[0]; Z[1] ^= V[1]; Z[2] ^= V[2]; Z[3] ^= V[3]; } if (V[3] & 0x00000001) { V[3] >>= 1; V[3] |= ((V[2] & 0x00000001) ? 0x80000000 : 0); V[2] >>= 1; V[2] |= ((V[1] & 0x00000001) ? 0x80000000 : 0); V[1] >>= 1; V[1] |= ((V[0] & 0x00000001) ? 0x80000000 : 0); V[0] >>= 1; V[0] ^= 0xE1000000; } else { V[3] >>= 1; V[3] |= ((V[2] & 0x00000001) ? 0x80000000 : 0); V[2] >>= 1; V[2] |= ((V[1] & 0x00000001) ? 0x80000000 : 0); V[1] >>= 1; V[1] |= ((V[0] & 0x00000001) ? 0x80000000 : 0); V[0] >>= 1; } y <<= 1; } } X[0] = Z[0]; X[1] = Z[1]; X[2] = Z[2]; X[3] = Z[3]; } static void GHASH(Aes* aes, const byte* a, word32 aSz, const byte* c, word32 cSz, byte* s, word32 sSz) { word32 x[4] = {0,0,0,0}; word32 blocks, partial; word32 bigH[4]; XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(bigH, bigH, AES_BLOCK_SIZE); #endif /* Hash in A, the Additional Authentication Data */ if (aSz != 0 && a != NULL) { word32 bigA[4]; blocks = aSz / AES_BLOCK_SIZE; partial = aSz % AES_BLOCK_SIZE; while (blocks--) { XMEMCPY(bigA, a, AES_BLOCK_SIZE); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE); #endif x[0] ^= bigA[0]; x[1] ^= bigA[1]; x[2] ^= bigA[2]; x[3] ^= bigA[3]; GMULT(x, bigH); a += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(bigA, 0, AES_BLOCK_SIZE); XMEMCPY(bigA, a, partial); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE); #endif x[0] ^= bigA[0]; x[1] ^= bigA[1]; x[2] ^= bigA[2]; x[3] ^= bigA[3]; GMULT(x, bigH); } } /* Hash in C, the Ciphertext */ if (cSz != 0 && c != NULL) { word32 bigC[4]; blocks = cSz / AES_BLOCK_SIZE; partial = cSz % AES_BLOCK_SIZE; while (blocks--) { XMEMCPY(bigC, c, AES_BLOCK_SIZE); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE); #endif x[0] ^= bigC[0]; x[1] ^= bigC[1]; x[2] ^= bigC[2]; x[3] ^= bigC[3]; GMULT(x, bigH); c += AES_BLOCK_SIZE; } if (partial != 0) { XMEMSET(bigC, 0, AES_BLOCK_SIZE); XMEMCPY(bigC, c, partial); #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE); #endif x[0] ^= bigC[0]; x[1] ^= bigC[1]; x[2] ^= bigC[2]; x[3] ^= bigC[3]; GMULT(x, bigH); } } /* Hash in the lengths in bits of A and C */ { word32 len[4]; /* Lengths are in bytes. Convert to bits. */ len[0] = (aSz >> (8*sizeof(aSz) - 3)); len[1] = aSz << 3; len[2] = (cSz >> (8*sizeof(cSz) - 3)); len[3] = cSz << 3; x[0] ^= len[0]; x[1] ^= len[1]; x[2] ^= len[2]; x[3] ^= len[3]; GMULT(x, bigH); } #ifdef LITTLE_ENDIAN_ORDER ByteReverseWords(x, x, AES_BLOCK_SIZE); #endif XMEMCPY(s, x, sSz); } #endif /* end GCM_WORD32 */ void AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz, const byte* iv, word32 ivSz, byte* authTag, word32 authTagSz, const byte* authIn, word32 authInSz) { word32 blocks = sz / AES_BLOCK_SIZE; word32 partial = sz % AES_BLOCK_SIZE; const byte* p = in; byte* c = out; byte counter[AES_BLOCK_SIZE]; byte *ctr ; byte scratch[AES_BLOCK_SIZE]; CYASSL_ENTER("AesGcmEncrypt"); #ifdef CYASSL_PIC32MZ_CRYPT ctr = (char *)aes->iv_ce ; #else ctr = counter ; #endif XMEMSET(ctr, 0, AES_BLOCK_SIZE); XMEMCPY(ctr, iv, ivSz); InitGcmCounter(ctr); #ifdef CYASSL_PIC32MZ_CRYPT if(blocks) AesCrypt(aes, out, in, blocks*AES_BLOCK_SIZE, PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_AES_GCM ); #endif while (blocks--) { IncrementGcmCounter(ctr); #ifndef CYASSL_PIC32MZ_CRYPT AesEncrypt(aes, ctr, scratch); xorbuf(scratch, p, AES_BLOCK_SIZE); XMEMCPY(c, scratch, AES_BLOCK_SIZE); #endif p += AES_BLOCK_SIZE; c += AES_BLOCK_SIZE; } if (partial != 0) { IncrementGcmCounter(ctr); AesEncrypt(aes, ctr, scratch); xorbuf(scratch, p, partial); XMEMCPY(c, scratch, partial); } GHASH(aes, authIn, authInSz, out, sz, authTag, authTagSz); InitGcmCounter(ctr); AesEncrypt(aes, ctr, scratch); xorbuf(authTag, scratch, authTagSz); } int AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz, const byte* iv, word32 ivSz, const byte* authTag, word32 authTagSz, const byte* authIn, word32 authInSz) { word32 blocks = sz / AES_BLOCK_SIZE; word32 partial = sz % AES_BLOCK_SIZE; const byte* c = in; byte* p = out; byte counter[AES_BLOCK_SIZE]; byte *ctr ; byte scratch[AES_BLOCK_SIZE]; CYASSL_ENTER("AesGcmDecrypt"); #ifdef CYASSL_PIC32MZ_CRYPT ctr = (char *)aes->iv_ce ; #else ctr = counter ; #endif XMEMSET(ctr, 0, AES_BLOCK_SIZE); XMEMCPY(ctr, iv, ivSz); InitGcmCounter(ctr); /* Calculate the authTag again using the received auth data and the * cipher text. */ { byte Tprime[AES_BLOCK_SIZE]; byte EKY0[AES_BLOCK_SIZE]; GHASH(aes, authIn, authInSz, in, sz, Tprime, sizeof(Tprime)); AesEncrypt(aes, ctr, EKY0); xorbuf(Tprime, EKY0, sizeof(Tprime)); if (XMEMCMP(authTag, Tprime, authTagSz) != 0) { return AES_GCM_AUTH_E; } } #ifdef CYASSL_PIC32MZ_CRYPT if(blocks) AesCrypt(aes, out, in, blocks*AES_BLOCK_SIZE, PIC32_DECRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_AES_GCM ); #endif while (blocks--) { IncrementGcmCounter(ctr); #ifndef CYASSL_PIC32MZ_CRYPT AesEncrypt(aes, ctr, scratch); xorbuf(scratch, c, AES_BLOCK_SIZE); XMEMCPY(p, scratch, AES_BLOCK_SIZE); #endif p += AES_BLOCK_SIZE; c += AES_BLOCK_SIZE; } if (partial != 0) { IncrementGcmCounter(ctr); AesEncrypt(aes, ctr, scratch); xorbuf(scratch, c, partial); XMEMCPY(p, scratch, partial); } return 0; } CYASSL_API void GmacSetKey(Gmac* gmac, const byte* key, word32 len) { AesGcmSetKey(&gmac->aes, key, len); } CYASSL_API void GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz, const byte* authIn, word32 authInSz, byte* authTag, word32 authTagSz) { AesGcmEncrypt(&gmac->aes, NULL, NULL, 0, iv, ivSz, authTag, authTagSz, authIn, authInSz); } #endif /* HAVE_AESGCM */ #ifdef HAVE_AESCCM void AesCcmSetKey(Aes* aes, const byte* key, word32 keySz) { byte nonce[AES_BLOCK_SIZE]; if (!((keySz == 16) || (keySz == 24) || (keySz == 32))) return; XMEMSET(nonce, 0, sizeof(nonce)); AesSetKey(aes, key, keySz, nonce, AES_ENCRYPTION); } static void roll_x(Aes* aes, const byte* in, word32 inSz, byte* out) { /* process the bulk of the data */ while (inSz >= AES_BLOCK_SIZE) { xorbuf(out, in, AES_BLOCK_SIZE); in += AES_BLOCK_SIZE; inSz -= AES_BLOCK_SIZE; AesEncrypt(aes, out, out); } /* process remainder of the data */ if (inSz > 0) { xorbuf(out, in, inSz); AesEncrypt(aes, out, out); } } static void roll_auth(Aes* aes, const byte* in, word32 inSz, byte* out) { word32 authLenSz; word32 remainder; /* encode the length in */ if (inSz <= 0xFEFF) { authLenSz = 2; out[0] ^= ((inSz & 0xFF00) >> 8); out[1] ^= (inSz & 0x00FF); } else if (inSz <= 0xFFFFFFFF) { authLenSz = 6; out[0] ^= 0xFF; out[1] ^= 0xFE; out[2] ^= ((inSz & 0xFF000000) >> 24); out[3] ^= ((inSz & 0x00FF0000) >> 16); out[4] ^= ((inSz & 0x0000FF00) >> 8); out[5] ^= (inSz & 0x000000FF); } /* Note, the protocol handles auth data up to 2^64, but we are * using 32-bit sizes right now, so the bigger data isn't handled * else if (inSz <= 0xFFFFFFFFFFFFFFFF) {} */ else return; /* start fill out the rest of the first block */ remainder = AES_BLOCK_SIZE - authLenSz; if (inSz >= remainder) { /* plenty of bulk data to fill the remainder of this block */ xorbuf(out + authLenSz, in, remainder); inSz -= remainder; in += remainder; } else { /* not enough bulk data, copy what is available, and pad zero */ xorbuf(out + authLenSz, in, inSz); inSz = 0; } AesEncrypt(aes, out, out); if (inSz > 0) roll_x(aes, in, inSz, out); } static INLINE void AesCcmCtrInc(byte* B, word32 lenSz) { word32 i; for (i = 0; i < lenSz; i++) { if (++B[AES_BLOCK_SIZE - 1 - i] != 0) return; } } void AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz, const byte* nonce, word32 nonceSz, byte* authTag, word32 authTagSz, const byte* authIn, word32 authInSz) { byte A[AES_BLOCK_SIZE]; byte B[AES_BLOCK_SIZE]; byte lenSz; word32 i; XMEMCPY(B+1, nonce, nonceSz); lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz; B[0] = (authInSz > 0 ? 64 : 0) + (8 * (((byte)authTagSz - 2) / 2)) + (lenSz - 1); for (i = 0; i < lenSz; i++) B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF; AesEncrypt(aes, B, A); if (authInSz > 0) roll_auth(aes, authIn, authInSz, A); if (inSz > 0) roll_x(aes, in, inSz, A); XMEMCPY(authTag, A, authTagSz); B[0] = lenSz - 1; for (i = 0; i < lenSz; i++) B[AES_BLOCK_SIZE - 1 - i] = 0; AesEncrypt(aes, B, A); xorbuf(authTag, A, authTagSz); B[15] = 1; while (inSz >= AES_BLOCK_SIZE) { AesEncrypt(aes, B, A); xorbuf(A, in, AES_BLOCK_SIZE); XMEMCPY(out, A, AES_BLOCK_SIZE); AesCcmCtrInc(B, lenSz); inSz -= AES_BLOCK_SIZE; in += AES_BLOCK_SIZE; out += AES_BLOCK_SIZE; } if (inSz > 0) { AesEncrypt(aes, B, A); xorbuf(A, in, inSz); XMEMCPY(out, A, inSz); } XMEMSET(A, 0, AES_BLOCK_SIZE); XMEMSET(B, 0, AES_BLOCK_SIZE); } int AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz, const byte* nonce, word32 nonceSz, const byte* authTag, word32 authTagSz, const byte* authIn, word32 authInSz) { byte A[AES_BLOCK_SIZE]; byte B[AES_BLOCK_SIZE]; byte* o; byte lenSz; word32 i, oSz; int result = 0; o = out; oSz = inSz; XMEMCPY(B+1, nonce, nonceSz); lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz; B[0] = lenSz - 1; for (i = 0; i < lenSz; i++) B[AES_BLOCK_SIZE - 1 - i] = 0; B[15] = 1; while (oSz >= AES_BLOCK_SIZE) { AesEncrypt(aes, B, A); xorbuf(A, in, AES_BLOCK_SIZE); XMEMCPY(o, A, AES_BLOCK_SIZE); AesCcmCtrInc(B, lenSz); oSz -= AES_BLOCK_SIZE; in += AES_BLOCK_SIZE; o += AES_BLOCK_SIZE; } if (inSz > 0) { AesEncrypt(aes, B, A); xorbuf(A, in, oSz); XMEMCPY(o, A, oSz); } for (i = 0; i < lenSz; i++) B[AES_BLOCK_SIZE - 1 - i] = 0; AesEncrypt(aes, B, A); o = out; oSz = inSz; B[0] = (authInSz > 0 ? 64 : 0) + (8 * (((byte)authTagSz - 2) / 2)) + (lenSz - 1); for (i = 0; i < lenSz; i++) B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF; AesEncrypt(aes, B, A); if (authInSz > 0) roll_auth(aes, authIn, authInSz, A); if (inSz > 0) roll_x(aes, o, oSz, A); B[0] = lenSz - 1; for (i = 0; i < lenSz; i++) B[AES_BLOCK_SIZE - 1 - i] = 0; AesEncrypt(aes, B, B); xorbuf(A, B, authTagSz); if (XMEMCMP(A, authTag, authTagSz) != 0) { /* If the authTag check fails, don't keep the decrypted data. * Unfortunately, you need the decrypted data to calculate the * check value. */ XMEMSET(out, 0, inSz); result = AES_CCM_AUTH_E; } XMEMSET(A, 0, AES_BLOCK_SIZE); XMEMSET(B, 0, AES_BLOCK_SIZE); o = NULL; return result; } #endif #endif /* STM32F2_CRYPTO */ int AesSetIV(Aes* aes, const byte* iv) { if (aes == NULL) return BAD_FUNC_ARG; if (iv) XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); else XMEMSET(aes->reg, 0, AES_BLOCK_SIZE); return 0; } #ifdef HAVE_CAVIUM #include <cyassl/ctaocrypt/logging.h> #include "cavium_common.h" /* Initiliaze Aes for use with Nitrox device */ int AesInitCavium(Aes* aes, int devId) { if (aes == NULL) return -1; if (CspAllocContext(CONTEXT_SSL, &aes->contextHandle, devId) != 0) return -1; aes->devId = devId; aes->magic = CYASSL_AES_CAVIUM_MAGIC; return 0; } /* Free Aes from use with Nitrox device */ void AesFreeCavium(Aes* aes) { if (aes == NULL) return; if (aes->magic != CYASSL_AES_CAVIUM_MAGIC) return; CspFreeContext(CONTEXT_SSL, aes->contextHandle, aes->devId); aes->magic = 0; } static int AesCaviumSetKey(Aes* aes, const byte* key, word32 length, const byte* iv) { if (aes == NULL) return -1; XMEMCPY(aes->key, key, length); /* key still holds key, iv still in reg */ if (length == 16) aes->type = AES_128; else if (length == 24) aes->type = AES_192; else if (length == 32) aes->type = AES_256; return AesSetIV(aes, iv); } static int AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 length) { word offset = 0; word32 requestId; while (length > CYASSL_MAX_16BIT) { word16 slen = (word16)CYASSL_MAX_16BIT; if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, aes->type, slen, (byte*)in + offset, out + offset, (byte*)aes->reg, (byte*)aes->key, &requestId, aes->devId) != 0) { CYASSL_MSG("Bad Cavium Aes Encrypt"); return -1; } length -= CYASSL_MAX_16BIT; offset += CYASSL_MAX_16BIT; XMEMCPY(aes->reg, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE); } if (length) { word16 slen = (word16)length; if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, aes->type, slen, (byte*)in + offset, out + offset, (byte*)aes->reg, (byte*)aes->key, &requestId, aes->devId) != 0) { CYASSL_MSG("Bad Cavium Aes Encrypt"); return -1; } XMEMCPY(aes->reg, out + offset+length - AES_BLOCK_SIZE, AES_BLOCK_SIZE); } return 0; } static int AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 length) { word32 requestId; word offset = 0; while (length > CYASSL_MAX_16BIT) { word16 slen = (word16)CYASSL_MAX_16BIT; XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE); if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, aes->type, slen, (byte*)in + offset, out + offset, (byte*)aes->reg, (byte*)aes->key, &requestId, aes->devId) != 0) { CYASSL_MSG("Bad Cavium Aes Decrypt"); return -1; } length -= CYASSL_MAX_16BIT; offset += CYASSL_MAX_16BIT; XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); } if (length) { word16 slen = (word16)length; XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE); if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, aes->type, slen, (byte*)in + offset, out + offset, (byte*)aes->reg, (byte*)aes->key, &requestId, aes->devId) != 0) { CYASSL_MSG("Bad Cavium Aes Decrypt"); return -1; } XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); } return 0; } #endif /* HAVE_CAVIUM */ #endif /* NO_AES */