diff options
Diffstat (limited to 'libtomcrypt/src/ciphers/rc6.c')
| -rw-r--r-- | libtomcrypt/src/ciphers/rc6.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/libtomcrypt/src/ciphers/rc6.c b/libtomcrypt/src/ciphers/rc6.c index ae6f114..8afa033 100644 --- a/libtomcrypt/src/ciphers/rc6.c +++ b/libtomcrypt/src/ciphers/rc6.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 */ /** @@ -28,7 +28,7 @@ const struct ltc_cipher_descriptor rc6_desc = &rc6_test, &rc6_done, &rc6_keysize, - NULL, NULL, NULL, NULL, NULL, NULL, NULL + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }; static const ulong32 stab[44] = { @@ -120,9 +120,9 @@ int rc6_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke @param skey The key as scheduled */ #ifdef LTC_CLEAN_STACK -static void _rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) +static int _rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) #else -void rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) +int rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) #endif { ulong32 a,b,c,d,t,u, *K; @@ -155,13 +155,15 @@ void rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key * a += skey->rc6.K[42]; c += skey->rc6.K[43]; STORE32L(a,&ct[0]);STORE32L(b,&ct[4]);STORE32L(c,&ct[8]);STORE32L(d,&ct[12]); + return CRYPT_OK; } #ifdef LTC_CLEAN_STACK -void rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) +int rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) { - _rc6_ecb_encrypt(pt, ct, skey); + int err = _rc6_ecb_encrypt(pt, ct, skey); burn_stack(sizeof(ulong32) * 6 + sizeof(int)); + return err; } #endif @@ -172,9 +174,9 @@ void rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key * @param skey The key as scheduled */ #ifdef LTC_CLEAN_STACK -static void _rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) +static int _rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) #else -void rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) +int rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) #endif { ulong32 a,b,c,d,t,u, *K; @@ -208,13 +210,16 @@ void rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key * b -= skey->rc6.K[0]; d -= skey->rc6.K[1]; STORE32L(a,&pt[0]);STORE32L(b,&pt[4]);STORE32L(c,&pt[8]);STORE32L(d,&pt[12]); + + return CRYPT_OK; } #ifdef LTC_CLEAN_STACK -void rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) +int rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) { - _rc6_ecb_decrypt(ct, pt, skey); + int err = _rc6_ecb_decrypt(ct, pt, skey); burn_stack(sizeof(ulong32) * 6 + sizeof(int)); + return err; } #endif @@ -280,17 +285,17 @@ int rc6_test(void) rc6_ecb_decrypt(tmp[0], tmp[1], &key); /* compare */ - if (memcmp(tmp[0], tests[x].ct, 16) || memcmp(tmp[1], tests[x].pt, 16)) { + if (XMEMCMP(tmp[0], tests[x].ct, 16) || XMEMCMP(tmp[1], tests[x].pt, 16)) { #if 0 printf("\n\nFailed test %d\n", x); - if (memcmp(tmp[0], tests[x].ct, 16)) { + if (XMEMCMP(tmp[0], tests[x].ct, 16)) { printf("Ciphertext: "); for (y = 0; y < 16; y++) printf("%02x ", tmp[0][y]); printf("\nExpected : "); for (y = 0; y < 16; y++) printf("%02x ", tests[x].ct[y]); printf("\n"); } - if (memcmp(tmp[1], tests[x].pt, 16)) { + if (XMEMCMP(tmp[1], tests[x].pt, 16)) { printf("Plaintext: "); for (y = 0; y < 16; y++) printf("%02x ", tmp[0][y]); printf("\nExpected : "); @@ -339,5 +344,5 @@ int rc6_keysize(int *keysize) /* $Source: /cvs/libtom/libtomcrypt/src/ciphers/rc6.c,v $ */ -/* $Revision: 1.7 $ */ -/* $Date: 2005/05/05 14:35:58 $ */ +/* $Revision: 1.12 $ */ +/* $Date: 2006/11/08 23:01:06 $ */ |