diff options
author | Matt Johnston <matt@ucc.asn.au> | 2007-02-03 08:20:30 +0000 |
---|---|---|
committer | Matt Johnston <matt@ucc.asn.au> | 2007-02-03 08:20:30 +0000 |
commit | c5fd7dd5548f28e32d846e39d17e5c4de4e769af (patch) | |
tree | 81b522e272facfb27ff614936b4988bf6569ef2d /libtomcrypt/src/modes/cbc | |
parent | 5092e30605dfc5c45990d91cf606990e5c768255 (diff) | |
parent | 4a5208512ba02f735acbf7e948ed02353583581e (diff) |
merge of '1250b8af44b62d8f4fe0f8d9fc7e7a1cc34e7e1c'
and '7f8670ac3bb975f40967f3979d09d2199b7e90c8'
--HG--
extra : convert_revision : 6b61c50f4cf888bea302ac8fcf5dbb573b443251
Diffstat (limited to 'libtomcrypt/src/modes/cbc')
-rw-r--r-- | libtomcrypt/src/modes/cbc/cbc_decrypt.c | 32 | ||||
-rw-r--r-- | libtomcrypt/src/modes/cbc/cbc_done.c | 8 | ||||
-rw-r--r-- | libtomcrypt/src/modes/cbc/cbc_encrypt.c | 38 | ||||
-rw-r--r-- | libtomcrypt/src/modes/cbc/cbc_getiv.c | 9 | ||||
-rw-r--r-- | libtomcrypt/src/modes/cbc/cbc_setiv.c | 8 | ||||
-rw-r--r-- | libtomcrypt/src/modes/cbc/cbc_start.c | 8 |
6 files changed, 54 insertions, 49 deletions
diff --git a/libtomcrypt/src/modes/cbc/cbc_decrypt.c b/libtomcrypt/src/modes/cbc/cbc_decrypt.c index fc3fdd5..d768d88 100644 --- a/libtomcrypt/src/modes/cbc/cbc_decrypt.c +++ b/libtomcrypt/src/modes/cbc/cbc_decrypt.c @@ -6,7 +6,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" @@ -16,7 +16,7 @@ */ -#ifdef CBC +#ifdef LTC_CBC_MODE /** CBC decrypt @@ -45,7 +45,7 @@ int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, s } /* is blocklen valid? */ - if (cbc->blocklen < 0 || cbc->blocklen > (int)sizeof(cbc->IV)) { + if (cbc->blocklen < 1 || cbc->blocklen > (int)sizeof(cbc->IV)) { return CRYPT_INVALID_ARG; } @@ -53,32 +53,34 @@ int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, s return CRYPT_INVALID_ARG; } #ifdef LTC_FAST - if (len % sizeof(LTC_FAST_TYPE)) { + if (cbc->blocklen % sizeof(LTC_FAST_TYPE)) { return CRYPT_INVALID_ARG; } #endif if (cipher_descriptor[cbc->cipher].accel_cbc_decrypt != NULL) { - cipher_descriptor[cbc->cipher].accel_cbc_decrypt(ct, pt, len / cbc->blocklen, cbc->IV, &cbc->key); + return cipher_descriptor[cbc->cipher].accel_cbc_decrypt(ct, pt, len / cbc->blocklen, cbc->IV, &cbc->key); } else { while (len) { /* decrypt */ - cipher_descriptor[cbc->cipher].ecb_decrypt(ct, tmp, &cbc->key); + if ((err = cipher_descriptor[cbc->cipher].ecb_decrypt(ct, tmp, &cbc->key)) != CRYPT_OK) { + return err; + } /* xor IV against plaintext */ #if defined(LTC_FAST) - for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) { - tmpy = *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) ^ *((LTC_FAST_TYPE*)((unsigned char *)tmp + x)); - *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) = *((LTC_FAST_TYPE*)((unsigned char *)ct + x)); - *((LTC_FAST_TYPE*)((unsigned char *)pt + x)) = tmpy; - } - #else + for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) { + tmpy = *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) ^ *((LTC_FAST_TYPE*)((unsigned char *)tmp + x)); + *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) = *((LTC_FAST_TYPE*)((unsigned char *)ct + x)); + *((LTC_FAST_TYPE*)((unsigned char *)pt + x)) = tmpy; + } + #else for (x = 0; x < cbc->blocklen; x++) { tmpy = tmp[x] ^ cbc->IV[x]; cbc->IV[x] = ct[x]; pt[x] = tmpy; } - #endif + #endif ct += cbc->blocklen; pt += cbc->blocklen; @@ -91,5 +93,5 @@ int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, s #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_decrypt.c,v $ */ -/* $Revision: 1.9 $ */ -/* $Date: 2005/05/05 14:35:59 $ */ +/* $Revision: 1.15 $ */ +/* $Date: 2006/11/21 00:18:23 $ */ diff --git a/libtomcrypt/src/modes/cbc/cbc_done.c b/libtomcrypt/src/modes/cbc/cbc_done.c index afaa9bb..99b035e 100644 --- a/libtomcrypt/src/modes/cbc/cbc_done.c +++ b/libtomcrypt/src/modes/cbc/cbc_done.c @@ -6,7 +6,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" @@ -15,7 +15,7 @@ CBC implementation, finish chain, Tom St Denis */ -#ifdef CBC +#ifdef LTC_CBC_MODE /** Terminate the chain @param cbc The CBC chain to terminate @@ -38,5 +38,5 @@ int cbc_done(symmetric_CBC *cbc) #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_done.c,v $ */ -/* $Revision: 1.4 $ */ -/* $Date: 2005/05/05 14:35:59 $ */ +/* $Revision: 1.6 $ */ +/* $Date: 2006/06/29 01:46:46 $ */ diff --git a/libtomcrypt/src/modes/cbc/cbc_encrypt.c b/libtomcrypt/src/modes/cbc/cbc_encrypt.c index a6b41b1..bbfd1c4 100644 --- a/libtomcrypt/src/modes/cbc/cbc_encrypt.c +++ b/libtomcrypt/src/modes/cbc/cbc_encrypt.c @@ -6,7 +6,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" @@ -16,7 +16,7 @@ */ -#ifdef CBC +#ifdef LTC_CBC_MODE /** CBC encrypt @@ -39,7 +39,7 @@ int cbc_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, s } /* is blocklen valid? */ - if (cbc->blocklen < 0 || cbc->blocklen > (int)sizeof(cbc->IV)) { + if (cbc->blocklen < 1 || cbc->blocklen > (int)sizeof(cbc->IV)) { return CRYPT_INVALID_ARG; } @@ -47,39 +47,41 @@ int cbc_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, s return CRYPT_INVALID_ARG; } #ifdef LTC_FAST - if (len % sizeof(LTC_FAST_TYPE)) { + if (cbc->blocklen % sizeof(LTC_FAST_TYPE)) { return CRYPT_INVALID_ARG; } #endif if (cipher_descriptor[cbc->cipher].accel_cbc_encrypt != NULL) { - cipher_descriptor[cbc->cipher].accel_cbc_encrypt(pt, ct, len / cbc->blocklen, cbc->IV, &cbc->key); + return cipher_descriptor[cbc->cipher].accel_cbc_encrypt(pt, ct, len / cbc->blocklen, cbc->IV, &cbc->key); } else { while (len) { /* xor IV against plaintext */ #if defined(LTC_FAST) - for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) { - *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) ^= *((LTC_FAST_TYPE*)((unsigned char *)pt + x)); - } - #else + for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) ^= *((LTC_FAST_TYPE*)((unsigned char *)pt + x)); + } + #else for (x = 0; x < cbc->blocklen; x++) { cbc->IV[x] ^= pt[x]; } - #endif + #endif /* encrypt */ - cipher_descriptor[cbc->cipher].ecb_encrypt(cbc->IV, ct, &cbc->key); + if ((err = cipher_descriptor[cbc->cipher].ecb_encrypt(cbc->IV, ct, &cbc->key)) != CRYPT_OK) { + return err; + } /* store IV [ciphertext] for a future block */ #if defined(LTC_FAST) - for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) { - *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) = *((LTC_FAST_TYPE*)((unsigned char *)ct + x)); - } - #else + for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) = *((LTC_FAST_TYPE*)((unsigned char *)ct + x)); + } + #else for (x = 0; x < cbc->blocklen; x++) { cbc->IV[x] = ct[x]; } - #endif + #endif ct += cbc->blocklen; pt += cbc->blocklen; @@ -92,5 +94,5 @@ int cbc_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, s #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_encrypt.c,v $ */ -/* $Revision: 1.7 $ */ -/* $Date: 2005/05/05 14:35:59 $ */ +/* $Revision: 1.13 $ */ +/* $Date: 2006/11/21 00:18:23 $ */ diff --git a/libtomcrypt/src/modes/cbc/cbc_getiv.c b/libtomcrypt/src/modes/cbc/cbc_getiv.c index ab418b1..c54d558 100644 --- a/libtomcrypt/src/modes/cbc/cbc_getiv.c +++ b/libtomcrypt/src/modes/cbc/cbc_getiv.c @@ -6,7 +6,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" @@ -15,7 +15,7 @@ CBC implementation, get IV, Tom St Denis */ -#ifdef CBC +#ifdef LTC_CBC_MODE /** Get the current initial vector @@ -30,6 +30,7 @@ int cbc_getiv(unsigned char *IV, unsigned long *len, symmetric_CBC *cbc) LTC_ARGCHK(len != NULL); LTC_ARGCHK(cbc != NULL); if ((unsigned long)cbc->blocklen > *len) { + *len = cbc->blocklen; return CRYPT_BUFFER_OVERFLOW; } XMEMCPY(IV, cbc->IV, cbc->blocklen); @@ -41,5 +42,5 @@ int cbc_getiv(unsigned char *IV, unsigned long *len, symmetric_CBC *cbc) #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_getiv.c,v $ */ -/* $Revision: 1.3 $ */ -/* $Date: 2005/05/05 14:35:59 $ */ +/* $Revision: 1.6 $ */ +/* $Date: 2006/06/29 01:46:46 $ */ diff --git a/libtomcrypt/src/modes/cbc/cbc_setiv.c b/libtomcrypt/src/modes/cbc/cbc_setiv.c index c38e713..6fb70ca 100644 --- a/libtomcrypt/src/modes/cbc/cbc_setiv.c +++ b/libtomcrypt/src/modes/cbc/cbc_setiv.c @@ -6,7 +6,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" @@ -16,7 +16,7 @@ */ -#ifdef CBC +#ifdef LTC_CBC_MODE /** Set an initial vector @@ -40,5 +40,5 @@ int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc) /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_setiv.c,v $ */ -/* $Revision: 1.3 $ */ -/* $Date: 2005/05/05 14:35:59 $ */ +/* $Revision: 1.5 $ */ +/* $Date: 2006/06/29 01:46:46 $ */ diff --git a/libtomcrypt/src/modes/cbc/cbc_start.c b/libtomcrypt/src/modes/cbc/cbc_start.c index 833bb87..86ec7b9 100644 --- a/libtomcrypt/src/modes/cbc/cbc_start.c +++ b/libtomcrypt/src/modes/cbc/cbc_start.c @@ -6,7 +6,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" @@ -15,7 +15,7 @@ CBC implementation, start chain, Tom St Denis */ -#ifdef CBC +#ifdef LTC_CBC_MODE /** Initialize a CBC context @@ -58,5 +58,5 @@ int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key, #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_start.c,v $ */ -/* $Revision: 1.3 $ */ -/* $Date: 2005/05/05 14:35:59 $ */ +/* $Revision: 1.5 $ */ +/* $Date: 2006/06/29 01:46:46 $ */ |