diff options
Diffstat (limited to 'libtomcrypt/src/mac/omac/omac_process.c')
| -rw-r--r-- | libtomcrypt/src/mac/omac/omac_process.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/libtomcrypt/src/mac/omac/omac_process.c b/libtomcrypt/src/mac/omac/omac_process.c index f4b96f5..a70b179 100644 --- a/libtomcrypt/src/mac/omac/omac_process.c +++ b/libtomcrypt/src/mac/omac/omac_process.c @@ -6,28 +6,28 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com + * Tom St Denis, tomstdenis@gmail.com, http://libtom.org */ #include "tomcrypt.h" /** @file omac_process.c - OMAC1 support, process data, Tom St Denis + LTC_OMAC1 support, process data, Tom St Denis */ #ifdef LTC_OMAC /** - Process data through OMAC - @param omac The OMAC state - @param in The input data to send through OMAC + Process data through LTC_OMAC + @param omac The LTC_OMAC state + @param in The input data to send through LTC_OMAC @param inlen The length of the input (octets) @return CRYPT_OK if successful */ int omac_process(omac_state *omac, const unsigned char *in, unsigned long inlen) { - unsigned long n, x; + unsigned long n, x, blklen; int err; LTC_ARGCHK(omac != NULL); @@ -42,13 +42,14 @@ int omac_process(omac_state *omac, const unsigned char *in, unsigned long inlen) } #ifdef LTC_FAST - if (omac->buflen == 0 && inlen > 16) { - int y; - for (x = 0; x < (inlen - 16); x += 16) { - for (y = 0; y < 16; y += sizeof(LTC_FAST_TYPE)) { + blklen = cipher_descriptor[omac->cipher_idx].block_length; + if (omac->buflen == 0 && inlen > blklen) { + unsigned long y; + for (x = 0; x < (inlen - blklen); x += blklen) { + for (y = 0; y < blklen; y += sizeof(LTC_FAST_TYPE)) { *((LTC_FAST_TYPE*)(&omac->prev[y])) ^= *((LTC_FAST_TYPE*)(&in[y])); } - in += 16; + in += blklen; if ((err = cipher_descriptor[omac->cipher_idx].ecb_encrypt(omac->prev, omac->prev, &omac->key)) != CRYPT_OK) { return err; } @@ -83,6 +84,6 @@ int omac_process(omac_state *omac, const unsigned char *in, unsigned long inlen) #endif -/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_process.c,v $ */ -/* $Revision: 1.9 $ */ -/* $Date: 2006/11/03 00:39:49 $ */ +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */ |