SSL/TLS Library
CyaSSL is SSL/TLS library for embedded systems.
Diff: ctaocrypt/src/des3.c
- Revision:
- 0:9d17e4342598
diff -r 000000000000 -r 9d17e4342598 ctaocrypt/src/des3.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ctaocrypt/src/des3.c Sun Apr 20 12:40:57 2014 +0000 @@ -0,0 +1,1416 @@ +/* des3.c + * + * Copyright (C) 2006-2013 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#ifdef HAVE_CONFIG_H + #include <config.h> +#endif + +#include <cyassl/ctaocrypt/settings.h> + +#ifndef NO_DES3 + +#ifdef HAVE_FIPS + /* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */ + #define FIPS_NO_WRAPPERS +#endif + +#include <cyassl/ctaocrypt/des3.h> +#include <cyassl/ctaocrypt/error-crypt.h> + +#ifdef NO_INLINE + #include <cyassl/ctaocrypt/misc.h> +#else + #include <ctaocrypt/src/misc.c> +#endif + + +#ifdef HAVE_CAVIUM + static int Des3_CaviumSetKey(Des3* des3, const byte* key, const byte* iv); + static int Des3_CaviumCbcEncrypt(Des3* des3, byte* out, const byte* in, + word32 length); + static int Des3_CaviumCbcDecrypt(Des3* des3, byte* out, const byte* in, + word32 length); +#endif + + + + +#ifdef STM32F2_CRYPTO + /* + * STM32F2 hardware DES/3DES 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 Des_SetKey(Des* des, const byte* key, const byte* iv, int dir) + { + word32 *dkey = des->key; + + XMEMCPY(dkey, key, 8); + ByteReverseWords(dkey, dkey, 8); + + Des_SetIV(des, iv); + + return 0; + } + + int Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir) + { + word32 *dkey1 = des->key[0]; + word32 *dkey2 = des->key[1]; + word32 *dkey3 = des->key[2]; + + XMEMCPY(dkey1, key, 8); /* set key 1 */ + XMEMCPY(dkey2, key + 8, 8); /* set key 2 */ + XMEMCPY(dkey3, key + 16, 8); /* set key 3 */ + + ByteReverseWords(dkey1, dkey1, 8); + ByteReverseWords(dkey2, dkey2, 8); + ByteReverseWords(dkey3, dkey3, 8); + + return Des3_SetIV(des, iv); + } + + void DesCrypt(Des* des, byte* out, const byte* in, word32 sz, + int dir, int mode) + { + word32 *dkey, *iv; + CRYP_InitTypeDef DES_CRYP_InitStructure; + CRYP_KeyInitTypeDef DES_CRYP_KeyInitStructure; + CRYP_IVInitTypeDef DES_CRYP_IVInitStructure; + + dkey = des->key; + iv = des->reg; + + /* crypto structure initialization */ + CRYP_KeyStructInit(&DES_CRYP_KeyInitStructure); + CRYP_StructInit(&DES_CRYP_InitStructure); + CRYP_IVStructInit(&DES_CRYP_IVInitStructure); + + /* reset registers to their default values */ + CRYP_DeInit(); + + /* set direction, mode, and datatype */ + if (dir == DES_ENCRYPTION) { + DES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt; + } else { /* DES_DECRYPTION */ + DES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt; + } + + if (mode == DES_CBC) { + DES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_DES_CBC; + } else { /* DES_ECB */ + DES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_DES_ECB; + } + + DES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; + CRYP_Init(&DES_CRYP_InitStructure); + + /* load key into correct registers */ + DES_CRYP_KeyInitStructure.CRYP_Key1Left = dkey[0]; + DES_CRYP_KeyInitStructure.CRYP_Key1Right = dkey[1]; + CRYP_KeyInit(&DES_CRYP_KeyInitStructure); + + /* set iv */ + ByteReverseWords(iv, iv, DES_BLOCK_SIZE); + DES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; + DES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; + CRYP_IVInit(&DES_CRYP_IVInitStructure); + + /* enable crypto processor */ + CRYP_Cmd(ENABLE); + + while (sz > 0) + { + /* flush IN/OUT FIFOs */ + CRYP_FIFOFlush(); + + /* if input and output same will overwrite input iv */ + XMEMCPY(des->tmp, in + sz - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + + CRYP_DataIn(*(uint32_t*)&in[0]); + CRYP_DataIn(*(uint32_t*)&in[4]); + + /* 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(); + + /* store iv for next call */ + XMEMCPY(des->reg, des->tmp, DES_BLOCK_SIZE); + + sz -= DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + out += DES_BLOCK_SIZE; + } + + /* disable crypto processor */ + CRYP_Cmd(DISABLE); + } + + void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des, out, in, sz, DES_ENCRYPTION, DES_CBC); + } + + void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des, out, in, sz, DES_DECRYPTION, DES_CBC); + } + + void Des_EcbEncrypt(Des* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des, out, in, sz, DES_ENCRYPTION, DES_ECB); + } + + void Des3Crypt(Des3* des, byte* out, const byte* in, word32 sz, + int dir) + { + word32 *dkey1, *dkey2, *dkey3, *iv; + CRYP_InitTypeDef DES3_CRYP_InitStructure; + CRYP_KeyInitTypeDef DES3_CRYP_KeyInitStructure; + CRYP_IVInitTypeDef DES3_CRYP_IVInitStructure; + + dkey1 = des->key[0]; + dkey2 = des->key[1]; + dkey3 = des->key[2]; + iv = des->reg; + + /* crypto structure initialization */ + CRYP_KeyStructInit(&DES3_CRYP_KeyInitStructure); + CRYP_StructInit(&DES3_CRYP_InitStructure); + CRYP_IVStructInit(&DES3_CRYP_IVInitStructure); + + /* reset registers to their default values */ + CRYP_DeInit(); + + /* set direction, mode, and datatype */ + if (dir == DES_ENCRYPTION) { + DES3_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt; + } else { + DES3_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt; + } + + DES3_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_TDES_CBC; + DES3_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; + CRYP_Init(&DES3_CRYP_InitStructure); + + /* load key into correct registers */ + DES3_CRYP_KeyInitStructure.CRYP_Key1Left = dkey1[0]; + DES3_CRYP_KeyInitStructure.CRYP_Key1Right = dkey1[1]; + DES3_CRYP_KeyInitStructure.CRYP_Key2Left = dkey2[0]; + DES3_CRYP_KeyInitStructure.CRYP_Key2Right = dkey2[1]; + DES3_CRYP_KeyInitStructure.CRYP_Key3Left = dkey3[0]; + DES3_CRYP_KeyInitStructure.CRYP_Key3Right = dkey3[1]; + CRYP_KeyInit(&DES3_CRYP_KeyInitStructure); + + /* set iv */ + ByteReverseWords(iv, iv, DES_BLOCK_SIZE); + DES3_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; + DES3_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; + CRYP_IVInit(&DES3_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]); + + /* 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(); + + /* store iv for next call */ + XMEMCPY(des->reg, out + sz - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + + sz -= DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + out += DES_BLOCK_SIZE; + } + + /* disable crypto processor */ + CRYP_Cmd(DISABLE); + + } + + int Des3_CbcEncrypt(Des3* des, byte* out, const byte* in, word32 sz) + { + Des3Crypt(des, out, in, sz, DES_ENCRYPTION); + return 0; + } + + int Des3_CbcDecrypt(Des3* des, byte* out, const byte* in, word32 sz) + { + Des3Crypt(des, out, in, sz, DES_DECRYPTION); + return 0; + } + + +#elif defined(HAVE_COLDFIRE_SEC) + +#include "sec.h" +#include "mcf548x_sec.h" + +#include "memory_pools.h" +extern TX_BYTE_POOL mp_ncached; /* Non Cached memory pool */ +#define DES_BUFFER_SIZE (DES_BLOCK_SIZE * 16) +static unsigned char *DesBuffer = NULL ; + +#define SEC_DESC_DES_CBC_ENCRYPT 0x20500010 +#define SEC_DESC_DES_CBC_DECRYPT 0x20400010 +#define SEC_DESC_DES3_CBC_ENCRYPT 0x20700010 +#define SEC_DESC_DES3_CBC_DECRYPT 0x20600010 + +extern volatile unsigned char __MBAR[]; + +static void Des_Cbc(Des* des, byte* out, const byte* in, word32 sz, word32 desc) +{ + static volatile SECdescriptorType descriptor = { NULL } ; + int ret ; int stat1,stat2 ; + int i ; int size ; + volatile int v ; + + while(sz) { + if((sz%DES_BUFFER_SIZE) == sz) { + size = sz ; + sz = 0 ; + } else { + size = DES_BUFFER_SIZE ; + sz -= DES_BUFFER_SIZE ; + } + + descriptor.header = desc ; + /* + escriptor.length1 = 0x0; + descriptor.pointer1 = NULL; + */ + descriptor.length2 = des->ivlen ; + descriptor.pointer2 = (byte *)des->iv ; + descriptor.length3 = des->keylen ; + descriptor.pointer3 = (byte *)des->key; + descriptor.length4 = size; + descriptor.pointer4 = (byte *)in ; + descriptor.length5 = size; + descriptor.pointer5 = DesBuffer ; + /* + descriptor.length6 = 0; + descriptor.pointer6 = NULL; + descriptor.length7 = 0x0; + descriptor.pointer7 = NULL; + descriptor.nextDescriptorPtr = NULL ; + */ + + /* Initialize SEC and wait for encryption to complete */ + MCF_SEC_CCCR0 = 0x0000001A; //enable channel done notification + + /* Point SEC to the location of the descriptor */ + MCF_SEC_FR0 = (uint32)&descriptor; + + /* poll SISR to determine when channel is complete */ + while (!(MCF_SEC_SISRL) && !(MCF_SEC_SISRH)) + ; + + for(v=0; v<500; v++) ; + + ret = MCF_SEC_SISRH; + stat1 = MCF_SEC_DSR ; + stat2 = MCF_SEC_DISR ; + if(ret & 0xe0000000) + db_printf("Des_Cbc(%x):ISRH=%08x, DSR=%08x, DISR=%08x\n", desc, ret, stat1, stat2) ; + + XMEMCPY(out, DesBuffer, size) ; + + if((desc==SEC_DESC_DES3_CBC_ENCRYPT)||(desc==SEC_DESC_DES_CBC_ENCRYPT)) { + XMEMCPY((void*)des->iv, (void*)&(out[size-DES_IVLEN]), DES_IVLEN) ; + } else { + XMEMCPY((void*)des->iv, (void*)&(in[size-DES_IVLEN]), DES_IVLEN) ; + } + + in += size ; + out += size ; + + } +} + + +void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz) +{ + Des_Cbc(des, out, in, sz, SEC_DESC_DES_CBC_ENCRYPT) ; +} + +void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz) +{ + Des_Cbc(des, out, in, sz, SEC_DESC_DES_CBC_DECRYPT) ; +} + +int Des3_CbcEncrypt(Des3* des3, byte* out, const byte* in, word32 sz) +{ + Des_Cbc((Des *)des3, out, in, sz, SEC_DESC_DES3_CBC_ENCRYPT) ; + return 0; +} + +int Des3_CbcDecrypt(Des3* des3, byte* out, const byte* in, word32 sz) +{ + Des_Cbc((Des *)des3, out, in, sz, SEC_DESC_DES3_CBC_DECRYPT) ; + return 0; +} + + +int Des_SetKey(Des* des, const byte* key, const byte* iv, int dir) +{ + int i ; int status ; + + if(DesBuffer == NULL) { + status = tx_byte_allocate(&mp_ncached,(void *)&DesBuffer,DES_BUFFER_SIZE,TX_NO_WAIT); + } + + XMEMCPY(des->key, key, DES_KEYLEN); + des->keylen = DES_KEYLEN ; + des->ivlen = 0 ; + if (iv) { + XMEMCPY(des->iv, iv, DES_IVLEN); + des->ivlen = DES_IVLEN ; + } else { + for(i=0; i<DES_IVLEN; i++) + des->iv[i] = 0x0 ; + } + + return 0; +} + +int Des3_SetKey(Des3* des3, const byte* key, const byte* iv, int dir) +{ + int i ; int status ; + + if(DesBuffer == NULL) { + status = tx_byte_allocate(&mp_ncached,(void *)&DesBuffer,DES_BUFFER_SIZE,TX_NO_WAIT); + } + + XMEMCPY(des3->key, key, DES3_KEYLEN); + des3->keylen = DES3_KEYLEN ; + des3->ivlen = 0 ; + if (iv) { + XMEMCPY(des3->iv, iv, DES3_IVLEN); + des3->ivlen = DES3_IVLEN ; + } else { + for(i=0; i<DES_IVLEN; i++) + des3->iv[i] = 0x0 ; + } + + return 0; +} + +#elif defined FREESCALE_MMCAU + /* + * Freescale mmCAU hardware DES/3DES 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" + + const unsigned char parityLookup[128] = + { + 1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0, + 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1, + 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1, + 1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0 + }; + + int Des_SetKey(Des* des, const byte* key, const byte* iv, int dir) + { + int i = 0; + byte* dkey = (byte*)des->key; + + XMEMCPY(dkey, key, 8); + + Des_SetIV(des, iv); + + /* fix key parity, if needed */ + for (i = 0; i < 8; i++) { + dkey[i] = ((dkey[i] & 0xFE) | parityLookup[dkey[i] >> 1]); + } + + return 0; + } + + int Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir) + { + int i = 0, ret = 0; + byte* dkey1 = (byte*)des->key[0]; + byte* dkey2 = (byte*)des->key[1]; + byte* dkey3 = (byte*)des->key[2]; + + XMEMCPY(dkey1, key, 8); /* set key 1 */ + XMEMCPY(dkey2, key + 8, 8); /* set key 2 */ + XMEMCPY(dkey3, key + 16, 8); /* set key 3 */ + + ret = Des3_SetIV(des, iv); + if (ret != 0) + return ret; + + /* fix key parity if needed */ + for (i = 0; i < 8; i++) + dkey1[i] = ((dkey1[i] & 0xFE) | parityLookup[dkey1[i] >> 1]); + + for (i = 0; i < 8; i++) + dkey2[i] = ((dkey2[i] & 0xFE) | parityLookup[dkey2[i] >> 1]); + + for (i = 0; i < 8; i++) + dkey3[i] = ((dkey3[i] & 0xFE) | parityLookup[dkey3[i] >> 1]); + + return ret; + } + + void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz) + { + int i; + int offset = 0; + int len = sz; + byte *iv; + byte temp_block[DES_BLOCK_SIZE]; + + iv = (byte*)des->reg; + + while (len > 0) + { + XMEMCPY(temp_block, in + offset, DES_BLOCK_SIZE); + + /* XOR block with IV for CBC */ + for (i = 0; i < DES_BLOCK_SIZE; i++) + temp_block[i] ^= iv[i]; + + cau_des_encrypt(temp_block, (byte*)des->key, out + offset); + + len -= DES_BLOCK_SIZE; + offset += DES_BLOCK_SIZE; + + /* store IV for next block */ + XMEMCPY(iv, out + offset - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + } + + return; + } + + void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz) + { + int i; + int offset = 0; + int len = sz; + byte* iv; + byte temp_block[DES_BLOCK_SIZE]; + + iv = (byte*)des->reg; + + while (len > 0) + { + XMEMCPY(temp_block, in + offset, DES_BLOCK_SIZE); + + cau_des_decrypt(in + offset, (byte*)des->key, out + offset); + + /* XOR block with IV for CBC */ + for (i = 0; i < DES_BLOCK_SIZE; i++) + (out + offset)[i] ^= iv[i]; + + /* store IV for next block */ + XMEMCPY(iv, temp_block, DES_BLOCK_SIZE); + + len -= DES_BLOCK_SIZE; + offset += DES_BLOCK_SIZE; + } + + return; + } + + int Des3_CbcEncrypt(Des3* des, byte* out, const byte* in, word32 sz) + { + int i; + int offset = 0; + int len = sz; + + byte *iv; + byte temp_block[DES_BLOCK_SIZE]; + + iv = (byte*)des->reg; + + while (len > 0) + { + XMEMCPY(temp_block, in + offset, DES_BLOCK_SIZE); + + /* XOR block with IV for CBC */ + for (i = 0; i < DES_BLOCK_SIZE; i++) + temp_block[i] ^= iv[i]; + + cau_des_encrypt(temp_block , (byte*)des->key[0], out + offset); + cau_des_decrypt(out + offset, (byte*)des->key[1], out + offset); + cau_des_encrypt(out + offset, (byte*)des->key[2], out + offset); + + len -= DES_BLOCK_SIZE; + offset += DES_BLOCK_SIZE; + + /* store IV for next block */ + XMEMCPY(iv, out + offset - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + } + + return 0; + } + + int Des3_CbcDecrypt(Des3* des, byte* out, const byte* in, word32 sz) + { + int i; + int offset = 0; + int len = sz; + + byte* iv; + byte temp_block[DES_BLOCK_SIZE]; + + iv = (byte*)des->reg; + + while (len > 0) + { + XMEMCPY(temp_block, in + offset, DES_BLOCK_SIZE); + + cau_des_decrypt(in + offset , (byte*)des->key[2], out + offset); + cau_des_encrypt(out + offset, (byte*)des->key[1], out + offset); + cau_des_decrypt(out + offset, (byte*)des->key[0], out + offset); + + /* XOR block with IV for CBC */ + for (i = 0; i < DES_BLOCK_SIZE; i++) + (out + offset)[i] ^= iv[i]; + + /* store IV for next block */ + XMEMCPY(iv, temp_block, DES_BLOCK_SIZE); + + len -= DES_BLOCK_SIZE; + offset += DES_BLOCK_SIZE; + } + + return 0; + } + + +#elif defined(CYASSL_PIC32MZ_CRYPT) + + #include "../../cyassl/ctaocrypt/port/pic32/pic32mz-crypt.h" + +void Des_SetIV(Des* des, const byte* iv); +int Des3_SetIV(Des3* des, const byte* iv); + + int Des_SetKey(Des* des, const byte* key, const byte* iv, int dir) + { + word32 *dkey = des->key ; + word32 *dreg = des->reg ; + + XMEMCPY((byte *)dkey, (byte *)key, 8); + ByteReverseWords(dkey, dkey, 8); + XMEMCPY((byte *)dreg, (byte *)iv, 8); + ByteReverseWords(dreg, dreg, 8); + + return 0; + } + + int Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir) + { + word32 *dkey1 = des->key[0]; + word32 *dreg = des->reg ; + + XMEMCPY(dkey1, key, 24); + ByteReverseWords(dkey1, dkey1, 24); + XMEMCPY(dreg, iv, 8); + ByteReverseWords(dreg, dreg, 8) ; + + return 0; + } + + void DesCrypt(word32 *key, word32 *iv, byte* out, const byte* in, word32 sz, + int dir, int algo, int cryptoalgo) + { + securityAssociation *sa_p ; + bufferDescriptor *bd_p ; + const byte *in_p, *in_l ; + byte *out_p, *out_l ; + volatile securityAssociation sa __attribute__((aligned (8))); + volatile bufferDescriptor bd __attribute__((aligned (8))); + volatile int k ; + + /* get uncached address */ + + in_l = in; + out_l = out ; + sa_p = KVA0_TO_KVA1(&sa) ; + bd_p = KVA0_TO_KVA1(&bd) ; + in_p = KVA0_TO_KVA1(in_l) ; + out_p= KVA0_TO_KVA1(out_l); + + if(PIC32MZ_IF_RAM(in_p)) + XMEMCPY((void *)in_p, (void *)in, sz); + XMEMSET((void *)out_p, 0, sz); + + /* Set up the Security Association */ + XMEMSET((byte *)KVA0_TO_KVA1(&sa), 0, sizeof(sa)); + sa_p->SA_CTRL.ALGO = algo ; + 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; + sa_p->SA_CTRL.KEYSIZE = 1 ; /* KEY is 192 bits */ + XMEMCPY((byte *)KVA0_TO_KVA1(&sa.SA_ENCKEY[algo==PIC32_ALGO_TDES ? 2 : 6]), + (byte *)key, algo==PIC32_ALGO_TDES ? 24 : 8); + XMEMCPY((byte *)KVA0_TO_KVA1(&sa.SA_ENCIV[2]), (byte *)iv, 8); + + XMEMSET((byte *)KVA0_TO_KVA1(&bd), 0, sizeof(bd)); + /* Set up the Buffer Descriptor */ + bd_p->BD_CTRL.BUFLEN = sz; + 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) ; // (unsigned int)sa_p ; + bd_p->SRCADDR = (unsigned int)KVA_TO_PA(in) ; // (unsigned int)in_p ; + bd_p->DSTADDR = (unsigned int)KVA_TO_PA(out); // (unsigned int)out_p ; + bd_p->NXTPTR = (unsigned int)KVA_TO_PA(&bd); + bd_p->MSGLEN = sz ; + + /* Fire in the hole! */ + CECON = 1 << 6; + while (CECON); + + /* Run the engine */ + CEBDPADDR = (unsigned int)KVA_TO_PA(&bd) ; // (unsigned int)bd_p ; + 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 *)iv, (void*)&(out_p[sz-DES_IVLEN]), DES_IVLEN) ; + } else { + ByteReverseWords((word32*)iv, (word32 *)&(in_p[sz-DES_IVLEN]), DES_IVLEN); + } + + } + + ByteReverseWords((word32*)out, (word32 *)KVA0_TO_KVA1(out), sz); + } + + void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des->key, des->reg, out, in, sz, + PIC32_ENCRYPTION, PIC32_ALGO_DES, PIC32_CRYPTOALGO_CBC ); + } + + void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des->key, des->reg, out, in, sz, + PIC32_DECRYPTION, PIC32_ALGO_DES, PIC32_CRYPTOALGO_CBC); + } + + int Des3_CbcEncrypt(Des3* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des->key[0], des->reg, out, in, sz, + PIC32_ENCRYPTION, PIC32_ALGO_TDES, PIC32_CRYPTOALGO_TCBC); + return 0; + } + + int Des3_CbcDecrypt(Des3* des, byte* out, const byte* in, word32 sz) + { + DesCrypt(des->key[0], des->reg, out, in, sz, + PIC32_DECRYPTION, PIC32_ALGO_TDES, PIC32_CRYPTOALGO_TCBC); + return 0; + } + +#else /* CTaoCrypt software implementation */ + +/* permuted choice table (key) */ +static const byte pc1[] = { + 57, 49, 41, 33, 25, 17, 9, + 1, 58, 50, 42, 34, 26, 18, + 10, 2, 59, 51, 43, 35, 27, + 19, 11, 3, 60, 52, 44, 36, + + 63, 55, 47, 39, 31, 23, 15, + 7, 62, 54, 46, 38, 30, 22, + 14, 6, 61, 53, 45, 37, 29, + 21, 13, 5, 28, 20, 12, 4 +}; + +/* number left rotations of pc1 */ +static const byte totrot[] = { + 1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28 +}; + +/* permuted choice key (table) */ +static const byte pc2[] = { + 14, 17, 11, 24, 1, 5, + 3, 28, 15, 6, 21, 10, + 23, 19, 12, 4, 26, 8, + 16, 7, 27, 20, 13, 2, + 41, 52, 31, 37, 47, 55, + 30, 40, 51, 45, 33, 48, + 44, 49, 39, 56, 34, 53, + 46, 42, 50, 36, 29, 32 +}; + +/* End of DES-defined tables */ + +/* bit 0 is left-most in byte */ +static const int bytebit[] = { + 0200,0100,040,020,010,04,02,01 +}; + +static const word32 Spbox[8][64] = { +{ +0x01010400,0x00000000,0x00010000,0x01010404, +0x01010004,0x00010404,0x00000004,0x00010000, +0x00000400,0x01010400,0x01010404,0x00000400, +0x01000404,0x01010004,0x01000000,0x00000004, +0x00000404,0x01000400,0x01000400,0x00010400, +0x00010400,0x01010000,0x01010000,0x01000404, +0x00010004,0x01000004,0x01000004,0x00010004, +0x00000000,0x00000404,0x00010404,0x01000000, +0x00010000,0x01010404,0x00000004,0x01010000, +0x01010400,0x01000000,0x01000000,0x00000400, +0x01010004,0x00010000,0x00010400,0x01000004, +0x00000400,0x00000004,0x01000404,0x00010404, +0x01010404,0x00010004,0x01010000,0x01000404, +0x01000004,0x00000404,0x00010404,0x01010400, +0x00000404,0x01000400,0x01000400,0x00000000, +0x00010004,0x00010400,0x00000000,0x01010004}, +{ +0x80108020,0x80008000,0x00008000,0x00108020, +0x00100000,0x00000020,0x80100020,0x80008020, +0x80000020,0x80108020,0x80108000,0x80000000, +0x80008000,0x00100000,0x00000020,0x80100020, +0x00108000,0x00100020,0x80008020,0x00000000, +0x80000000,0x00008000,0x00108020,0x80100000, +0x00100020,0x80000020,0x00000000,0x00108000, +0x00008020,0x80108000,0x80100000,0x00008020, +0x00000000,0x00108020,0x80100020,0x00100000, +0x80008020,0x80100000,0x80108000,0x00008000, +0x80100000,0x80008000,0x00000020,0x80108020, +0x00108020,0x00000020,0x00008000,0x80000000, +0x00008020,0x80108000,0x00100000,0x80000020, +0x00100020,0x80008020,0x80000020,0x00100020, +0x00108000,0x00000000,0x80008000,0x00008020, +0x80000000,0x80100020,0x80108020,0x00108000}, +{ +0x00000208,0x08020200,0x00000000,0x08020008, +0x08000200,0x00000000,0x00020208,0x08000200, +0x00020008,0x08000008,0x08000008,0x00020000, +0x08020208,0x00020008,0x08020000,0x00000208, +0x08000000,0x00000008,0x08020200,0x00000200, +0x00020200,0x08020000,0x08020008,0x00020208, +0x08000208,0x00020200,0x00020000,0x08000208, +0x00000008,0x08020208,0x00000200,0x08000000, +0x08020200,0x08000000,0x00020008,0x00000208, +0x00020000,0x08020200,0x08000200,0x00000000, +0x00000200,0x00020008,0x08020208,0x08000200, +0x08000008,0x00000200,0x00000000,0x08020008, +0x08000208,0x00020000,0x08000000,0x08020208, +0x00000008,0x00020208,0x00020200,0x08000008, +0x08020000,0x08000208,0x00000208,0x08020000, +0x00020208,0x00000008,0x08020008,0x00020200}, +{ +0x00802001,0x00002081,0x00002081,0x00000080, +0x00802080,0x00800081,0x00800001,0x00002001, +0x00000000,0x00802000,0x00802000,0x00802081, +0x00000081,0x00000000,0x00800080,0x00800001, +0x00000001,0x00002000,0x00800000,0x00802001, +0x00000080,0x00800000,0x00002001,0x00002080, +0x00800081,0x00000001,0x00002080,0x00800080, +0x00002000,0x00802080,0x00802081,0x00000081, +0x00800080,0x00800001,0x00802000,0x00802081, +0x00000081,0x00000000,0x00000000,0x00802000, +0x00002080,0x00800080,0x00800081,0x00000001, +0x00802001,0x00002081,0x00002081,0x00000080, +0x00802081,0x00000081,0x00000001,0x00002000, +0x00800001,0x00002001,0x00802080,0x00800081, +0x00002001,0x00002080,0x00800000,0x00802001, +0x00000080,0x00800000,0x00002000,0x00802080}, +{ +0x00000100,0x02080100,0x02080000,0x42000100, +0x00080000,0x00000100,0x40000000,0x02080000, +0x40080100,0x00080000,0x02000100,0x40080100, +0x42000100,0x42080000,0x00080100,0x40000000, +0x02000000,0x40080000,0x40080000,0x00000000, +0x40000100,0x42080100,0x42080100,0x02000100, +0x42080000,0x40000100,0x00000000,0x42000000, +0x02080100,0x02000000,0x42000000,0x00080100, +0x00080000,0x42000100,0x00000100,0x02000000, +0x40000000,0x02080000,0x42000100,0x40080100, +0x02000100,0x40000000,0x42080000,0x02080100, +0x40080100,0x00000100,0x02000000,0x42080000, +0x42080100,0x00080100,0x42000000,0x42080100, +0x02080000,0x00000000,0x40080000,0x42000000, +0x00080100,0x02000100,0x40000100,0x00080000, +0x00000000,0x40080000,0x02080100,0x40000100}, +{ +0x20000010,0x20400000,0x00004000,0x20404010, +0x20400000,0x00000010,0x20404010,0x00400000, +0x20004000,0x00404010,0x00400000,0x20000010, +0x00400010,0x20004000,0x20000000,0x00004010, +0x00000000,0x00400010,0x20004010,0x00004000, +0x00404000,0x20004010,0x00000010,0x20400010, +0x20400010,0x00000000,0x00404010,0x20404000, +0x00004010,0x00404000,0x20404000,0x20000000, +0x20004000,0x00000010,0x20400010,0x00404000, +0x20404010,0x00400000,0x00004010,0x20000010, +0x00400000,0x20004000,0x20000000,0x00004010, +0x20000010,0x20404010,0x00404000,0x20400000, +0x00404010,0x20404000,0x00000000,0x20400010, +0x00000010,0x00004000,0x20400000,0x00404010, +0x00004000,0x00400010,0x20004010,0x00000000, +0x20404000,0x20000000,0x00400010,0x20004010}, +{ +0x00200000,0x04200002,0x04000802,0x00000000, +0x00000800,0x04000802,0x00200802,0x04200800, +0x04200802,0x00200000,0x00000000,0x04000002, +0x00000002,0x04000000,0x04200002,0x00000802, +0x04000800,0x00200802,0x00200002,0x04000800, +0x04000002,0x04200000,0x04200800,0x00200002, +0x04200000,0x00000800,0x00000802,0x04200802, +0x00200800,0x00000002,0x04000000,0x00200800, +0x04000000,0x00200800,0x00200000,0x04000802, +0x04000802,0x04200002,0x04200002,0x00000002, +0x00200002,0x04000000,0x04000800,0x00200000, +0x04200800,0x00000802,0x00200802,0x04200800, +0x00000802,0x04000002,0x04200802,0x04200000, +0x00200800,0x00000000,0x00000002,0x04200802, +0x00000000,0x00200802,0x04200000,0x00000800, +0x04000002,0x04000800,0x00000800,0x00200002}, +{ +0x10001040,0x00001000,0x00040000,0x10041040, +0x10000000,0x10001040,0x00000040,0x10000000, +0x00040040,0x10040000,0x10041040,0x00041000, +0x10041000,0x00041040,0x00001000,0x00000040, +0x10040000,0x10000040,0x10001000,0x00001040, +0x00041000,0x00040040,0x10040040,0x10041000, +0x00001040,0x00000000,0x00000000,0x10040040, +0x10000040,0x10001000,0x00041040,0x00040000, +0x00041040,0x00040000,0x10041000,0x00001000, +0x00000040,0x10040040,0x00001000,0x00041040, +0x10001000,0x00000040,0x10000040,0x10040000, +0x10040040,0x10000000,0x00040000,0x10001040, +0x00000000,0x10041040,0x00040040,0x10000040, +0x10040000,0x10001000,0x10001040,0x00000000, +0x10041040,0x00041000,0x00041000,0x00001040, +0x00001040,0x00040040,0x10000000,0x10041000} +}; + + +static INLINE void IPERM(word32* left, word32* right) +{ + word32 work; + + *right = rotlFixed(*right, 4U); + work = (*left ^ *right) & 0xf0f0f0f0; + *left ^= work; + + *right = rotrFixed(*right^work, 20U); + work = (*left ^ *right) & 0xffff0000; + *left ^= work; + + *right = rotrFixed(*right^work, 18U); + work = (*left ^ *right) & 0x33333333; + *left ^= work; + + *right = rotrFixed(*right^work, 6U); + work = (*left ^ *right) & 0x00ff00ff; + *left ^= work; + + *right = rotlFixed(*right^work, 9U); + work = (*left ^ *right) & 0xaaaaaaaa; + *left = rotlFixed(*left^work, 1U); + *right ^= work; +} + + +static INLINE void FPERM(word32* left, word32* right) +{ + word32 work; + + *right = rotrFixed(*right, 1U); + work = (*left ^ *right) & 0xaaaaaaaa; + *right ^= work; + + *left = rotrFixed(*left^work, 9U); + work = (*left ^ *right) & 0x00ff00ff; + *right ^= work; + + *left = rotlFixed(*left^work, 6U); + work = (*left ^ *right) & 0x33333333; + *right ^= work; + + *left = rotlFixed(*left^work, 18U); + work = (*left ^ *right) & 0xffff0000; + *right ^= work; + + *left = rotlFixed(*left^work, 20U); + work = (*left ^ *right) & 0xf0f0f0f0; + *right ^= work; + + *left = rotrFixed(*left^work, 4U); +} + + +static int DesSetKey(const byte* key, int dir, word32* out) +{ + byte* buffer = (byte*)XMALLOC(56+56+8, NULL, DYNAMIC_TYPE_TMP_BUFFER); + + if (!buffer) { + return MEMORY_E; + } + else { + byte* const pc1m = buffer; /* place to modify pc1 into */ + byte* const pcr = pc1m + 56; /* place to rotate pc1 into */ + byte* const ks = pcr + 56; + register int i, j, l; + int m; + + for (j = 0; j < 56; j++) { /* convert pc1 to bits of key */ + l = pc1[j] - 1; /* integer bit location */ + m = l & 07; /* find bit */ + pc1m[j] = (key[l >> 3] & /* find which key byte l is in */ + bytebit[m]) /* and which bit of that byte */ + ? 1 : 0; /* and store 1-bit result */ + } + + for (i = 0; i < 16; i++) { /* key chunk for each iteration */ + XMEMSET(ks, 0, 8); /* Clear key schedule */ + + for (j = 0; j < 56; j++) /* rotate pc1 the right amount */ + pcr[j] = + pc1m[(l = j + totrot[i]) < (j < 28 ? 28 : 56) ? l : l-28]; + + /* rotate left and right halves independently */ + for (j = 0; j < 48; j++) { /* select bits individually */ + if (pcr[pc2[j] - 1]) { /* check bit that goes to ks[j] */ + l= j % 6; /* mask it in if it's there */ + ks[j/6] |= bytebit[l] >> 2; + } + } + + /* Now convert to odd/even interleaved form for use in F */ + out[2*i] = ((word32) ks[0] << 24) + | ((word32) ks[2] << 16) + | ((word32) ks[4] << 8) + | ((word32) ks[6]); + + out[2*i + 1] = ((word32) ks[1] << 24) + | ((word32) ks[3] << 16) + | ((word32) ks[5] << 8) + | ((word32) ks[7]); + } + + /* reverse key schedule order */ + if (dir == DES_DECRYPTION) { + for (i = 0; i < 16; i += 2) { + word32 swap = out[i]; + out[i] = out[DES_KS_SIZE - 2 - i]; + out[DES_KS_SIZE - 2 - i] = swap; + + swap = out[i + 1]; + out[i + 1] = out[DES_KS_SIZE - 1 - i]; + out[DES_KS_SIZE - 1 - i] = swap; + } + } + + XFREE(buffer, NULL, DYNAMIC_TYPE_TMP_BUFFER); + } + + return 0; +} + + +static INLINE int Reverse(int dir) +{ + return !dir; +} + + +int Des_SetKey(Des* des, const byte* key, const byte* iv, int dir) +{ + Des_SetIV(des, iv); + + return DesSetKey(key, dir, des->key); +} + + +int Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir) +{ + int ret; + +#ifdef HAVE_CAVIUM + if (des->magic == CYASSL_3DES_CAVIUM_MAGIC) + return Des3_CaviumSetKey(des, key, iv); +#endif + + ret = DesSetKey(key + (dir == DES_ENCRYPTION ? 0:16), dir, des->key[0]); + if (ret != 0) + return ret; + + ret = DesSetKey(key + 8, Reverse(dir), des->key[1]); + if (ret != 0) + return ret; + + ret = DesSetKey(key + (dir == DES_DECRYPTION ? 0:16), dir, des->key[2]); + if (ret != 0) + return ret; + + return Des3_SetIV(des, iv); +} + + +static void DesRawProcessBlock(word32* lIn, word32* rIn, const word32* kptr) +{ + word32 l = *lIn, r = *rIn, i; + + for (i=0; i<8; i++) + { + word32 work = rotrFixed(r, 4U) ^ kptr[4*i+0]; + l ^= Spbox[6][(work) & 0x3f] + ^ Spbox[4][(work >> 8) & 0x3f] + ^ Spbox[2][(work >> 16) & 0x3f] + ^ Spbox[0][(work >> 24) & 0x3f]; + work = r ^ kptr[4*i+1]; + l ^= Spbox[7][(work) & 0x3f] + ^ Spbox[5][(work >> 8) & 0x3f] + ^ Spbox[3][(work >> 16) & 0x3f] + ^ Spbox[1][(work >> 24) & 0x3f]; + + work = rotrFixed(l, 4U) ^ kptr[4*i+2]; + r ^= Spbox[6][(work) & 0x3f] + ^ Spbox[4][(work >> 8) & 0x3f] + ^ Spbox[2][(work >> 16) & 0x3f] + ^ Spbox[0][(work >> 24) & 0x3f]; + work = l ^ kptr[4*i+3]; + r ^= Spbox[7][(work) & 0x3f] + ^ Spbox[5][(work >> 8) & 0x3f] + ^ Spbox[3][(work >> 16) & 0x3f] + ^ Spbox[1][(work >> 24) & 0x3f]; + } + + *lIn = l; *rIn = r; +} + + +static void DesProcessBlock(Des* des, const byte* in, byte* out) +{ + word32 l, r; + + XMEMCPY(&l, in, sizeof(l)); + XMEMCPY(&r, in + sizeof(l), sizeof(r)); + #ifdef LITTLE_ENDIAN_ORDER + l = ByteReverseWord32(l); + r = ByteReverseWord32(r); + #endif + IPERM(&l,&r); + + DesRawProcessBlock(&l, &r, des->key); + + FPERM(&l,&r); + #ifdef LITTLE_ENDIAN_ORDER + l = ByteReverseWord32(l); + r = ByteReverseWord32(r); + #endif + XMEMCPY(out, &r, sizeof(r)); + XMEMCPY(out + sizeof(r), &l, sizeof(l)); +} + + +static void Des3ProcessBlock(Des3* des, const byte* in, byte* out) +{ + word32 l, r; + + XMEMCPY(&l, in, sizeof(l)); + XMEMCPY(&r, in + sizeof(l), sizeof(r)); + #ifdef LITTLE_ENDIAN_ORDER + l = ByteReverseWord32(l); + r = ByteReverseWord32(r); + #endif + IPERM(&l,&r); + + DesRawProcessBlock(&l, &r, des->key[0]); + DesRawProcessBlock(&r, &l, des->key[1]); + DesRawProcessBlock(&l, &r, des->key[2]); + + FPERM(&l,&r); + #ifdef LITTLE_ENDIAN_ORDER + l = ByteReverseWord32(l); + r = ByteReverseWord32(r); + #endif + XMEMCPY(out, &r, sizeof(r)); + XMEMCPY(out + sizeof(r), &l, sizeof(l)); +} + + +void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz) +{ + word32 blocks = sz / DES_BLOCK_SIZE; + + while (blocks--) { + xorbuf((byte*)des->reg, in, DES_BLOCK_SIZE); + DesProcessBlock(des, (byte*)des->reg, (byte*)des->reg); + XMEMCPY(out, des->reg, DES_BLOCK_SIZE); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + } +} + + +void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz) +{ + word32 blocks = sz / DES_BLOCK_SIZE; + byte hold[DES_BLOCK_SIZE]; + + while (blocks--) { + XMEMCPY(des->tmp, in, DES_BLOCK_SIZE); + DesProcessBlock(des, (byte*)des->tmp, out); + xorbuf(out, (byte*)des->reg, DES_BLOCK_SIZE); + + XMEMCPY(hold, des->reg, DES_BLOCK_SIZE); + XMEMCPY(des->reg, des->tmp, DES_BLOCK_SIZE); + XMEMCPY(des->tmp, hold, DES_BLOCK_SIZE); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + } +} + + +int Des3_CbcEncrypt(Des3* des, byte* out, const byte* in, word32 sz) +{ + word32 blocks; + +#ifdef HAVE_CAVIUM + if (des->magic == CYASSL_3DES_CAVIUM_MAGIC) + return Des3_CaviumCbcEncrypt(des, out, in, sz); +#endif + + blocks = sz / DES_BLOCK_SIZE; + while (blocks--) { + xorbuf((byte*)des->reg, in, DES_BLOCK_SIZE); + Des3ProcessBlock(des, (byte*)des->reg, (byte*)des->reg); + XMEMCPY(out, des->reg, DES_BLOCK_SIZE); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + } + return 0; +} + + +int Des3_CbcDecrypt(Des3* des, byte* out, const byte* in, word32 sz) +{ + word32 blocks; + +#ifdef HAVE_CAVIUM + if (des->magic == CYASSL_3DES_CAVIUM_MAGIC) + return Des3_CaviumCbcDecrypt(des, out, in, sz); +#endif + + blocks = sz / DES_BLOCK_SIZE; + while (blocks--) { + XMEMCPY(des->tmp, in, DES_BLOCK_SIZE); + Des3ProcessBlock(des, (byte*)des->tmp, out); + xorbuf(out, (byte*)des->reg, DES_BLOCK_SIZE); + XMEMCPY(des->reg, des->tmp, DES_BLOCK_SIZE); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + } + return 0; +} + +#ifdef CYASSL_DES_ECB + +/* One block, compatibility only */ +void Des_EcbEncrypt(Des* des, byte* out, const byte* in, word32 sz) +{ + word32 blocks = sz / DES_BLOCK_SIZE; + + while (blocks--) { + DesProcessBlock(des, in, out); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + } +} + +#endif /* CYASSL_DES_ECB */ + +#endif /* STM32F2_CRYPTO */ + +void Des_SetIV(Des* des, const byte* iv) +{ + if (des && iv) + XMEMCPY(des->reg, iv, DES_BLOCK_SIZE); + else if (des) + XMEMSET(des->reg, 0, DES_BLOCK_SIZE); +} + + +int Des3_SetIV(Des3* des, const byte* iv) +{ + if (des && iv) + XMEMCPY(des->reg, iv, DES_BLOCK_SIZE); + else if (des) + XMEMSET(des->reg, 0, DES_BLOCK_SIZE); + + return 0; +} + + +#ifdef HAVE_CAVIUM + +#include <cyassl/ctaocrypt/logging.h> +#include "cavium_common.h" + +/* Initiliaze Des3 for use with Nitrox device */ +int Des3_InitCavium(Des3* des3, int devId) +{ + if (des3 == NULL) + return -1; + + if (CspAllocContext(CONTEXT_SSL, &des3->contextHandle, devId) != 0) + return -1; + + des3->devId = devId; + des3->magic = CYASSL_3DES_CAVIUM_MAGIC; + + return 0; +} + + +/* Free Des3 from use with Nitrox device */ +void Des3_FreeCavium(Des3* des3) +{ + if (des3 == NULL) + return; + + if (des3->magic != CYASSL_3DES_CAVIUM_MAGIC) + return; + + CspFreeContext(CONTEXT_SSL, des3->contextHandle, des3->devId); + des3->magic = 0; +} + + +static int Des3_CaviumSetKey(Des3* des3, const byte* key, const byte* iv) +{ + if (des3 == NULL) + return -1; + + /* key[0] holds key, iv in reg */ + XMEMCPY(des3->key[0], key, DES_BLOCK_SIZE*3); + + return Des3_SetIV(des3, iv); +} + + +static int Des3_CaviumCbcEncrypt(Des3* des3, byte* out, const byte* in, + word32 length) +{ + word offset = 0; + word32 requestId; + + while (length > CYASSL_MAX_16BIT) { + word16 slen = (word16)CYASSL_MAX_16BIT; + if (CspEncrypt3Des(CAVIUM_BLOCKING, des3->contextHandle, + CAVIUM_NO_UPDATE, slen, (byte*)in + offset, + out + offset, (byte*)des3->reg, (byte*)des3->key[0], + &requestId, des3->devId) != 0) { + CYASSL_MSG("Bad Cavium 3DES Cbc Encrypt"); + return -1; + } + length -= CYASSL_MAX_16BIT; + offset += CYASSL_MAX_16BIT; + XMEMCPY(des3->reg, out + offset - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + } + if (length) { + word16 slen = (word16)length; + + if (CspEncrypt3Des(CAVIUM_BLOCKING, des3->contextHandle, + CAVIUM_NO_UPDATE, slen, (byte*)in + offset, + out + offset, (byte*)des3->reg, (byte*)des3->key[0], + &requestId, des3->devId) != 0) { + CYASSL_MSG("Bad Cavium 3DES Cbc Encrypt"); + return -1; + } + XMEMCPY(des3->reg, out+offset+length - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + } + return 0; +} + +static int Des3_CaviumCbcDecrypt(Des3* des3, byte* out, const byte* in, + word32 length) +{ + word32 requestId; + word offset = 0; + + while (length > CYASSL_MAX_16BIT) { + word16 slen = (word16)CYASSL_MAX_16BIT; + XMEMCPY(des3->tmp, in + offset + slen - DES_BLOCK_SIZE, DES_BLOCK_SIZE); + if (CspDecrypt3Des(CAVIUM_BLOCKING, des3->contextHandle, + CAVIUM_NO_UPDATE, slen, (byte*)in+offset, out+offset, + (byte*)des3->reg, (byte*)des3->key[0], &requestId, + des3->devId) != 0) { + CYASSL_MSG("Bad Cavium 3Des Decrypt"); + return -1; + } + length -= CYASSL_MAX_16BIT; + offset += CYASSL_MAX_16BIT; + XMEMCPY(des3->reg, des3->tmp, DES_BLOCK_SIZE); + } + if (length) { + word16 slen = (word16)length; + XMEMCPY(des3->tmp, in + offset + slen - DES_BLOCK_SIZE,DES_BLOCK_SIZE); + if (CspDecrypt3Des(CAVIUM_BLOCKING, des3->contextHandle, + CAVIUM_NO_UPDATE, slen, (byte*)in+offset, out+offset, + (byte*)des3->reg, (byte*)des3->key[0], &requestId, + des3->devId) != 0) { + CYASSL_MSG("Bad Cavium 3Des Decrypt"); + return -1; + } + XMEMCPY(des3->reg, des3->tmp, DES_BLOCK_SIZE); + } + return 0; +} + +#endif /* HAVE_CAVIUM */ + +#endif /* NO_DES3 */