Fork of CyaSSL for my specific settings
Fork of CyaSSL by
ctaocrypt/src/des3.c
- Committer:
- d0773d
- Date:
- 2015-03-03
- Revision:
- 4:28ac50e1d49c
- Parent:
- 0:1239e9b70ca2
File content as of revision 4:28ac50e1d49c:
/* des3.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_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) { #ifdef CYASSL_SMALL_STACK byte* buffer = (byte*)XMALLOC(56+56+8, NULL, DYNAMIC_TYPE_TMP_BUFFER); if (buffer == NULL) return MEMORY_E; #else byte buffer[56+56+8]; #endif { 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; } } #ifdef CYASSL_SMALL_STACK XFREE(buffer, NULL, DYNAMIC_TYPE_TMP_BUFFER); #endif } 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 */