[Opentnl-cvs] tnl/libtomcrypt/modes/ecb ecb_decrypt.c,NONE,1.1 ecb_done.c,NONE,1.1 ecb_encrypt.c,NON
Brought to you by:
mark_frohnmayer,
s_alanet
From: Mark F. <mar...@us...> - 2005-04-28 17:28:13
|
Update of /cvsroot/opentnl/tnl/libtomcrypt/modes/ecb In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26694/libtomcrypt/modes/ecb Added Files: ecb_decrypt.c ecb_done.c ecb_encrypt.c ecb_start.c Log Message: Updated to libtomcrypt 1.0.2 Not tested on linux or OS X --- NEW FILE: ecb_encrypt.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file ecb_encrypt.c ECB implementation, encrypt a block, Tom St Denis */ #ifdef ECB /** ECB encrypt @param pt Plaintext @param ct [out] Ciphertext @param len The number of octets to process (must be multiple of the cipher block size) @param ecb ECB state @return CRYPT_OK if successful */ int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb) { int err; LTC_ARGCHK(pt != NULL); LTC_ARGCHK(ct != NULL); LTC_ARGCHK(ecb != NULL); if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) { return err; } if (len % cipher_descriptor[ecb->cipher].block_length) { return CRYPT_INVALID_ARG; } /* check for accel */ if (cipher_descriptor[ecb->cipher].accel_ecb_encrypt != NULL) { cipher_descriptor[ecb->cipher].accel_ecb_encrypt(pt, ct, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key); } else { while (len) { cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key); pt += cipher_descriptor[ecb->cipher].block_length; ct += cipher_descriptor[ecb->cipher].block_length; len -= cipher_descriptor[ecb->cipher].block_length; } } return CRYPT_OK; } #endif --- NEW FILE: ecb_start.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file ecb_start.c ECB implementation, start chain, Tom St Denis */ #ifdef ECB /** Initialize a ECB context @param cipher The index of the cipher desired @param key The secret key @param keylen The length of the secret key (octets) @param num_rounds Number of rounds in the cipher desired (0 for default) @param ecb The ECB state to initialize @return CRYPT_OK if successful */ int ecb_start(int cipher, const unsigned char *key, int keylen, int num_rounds, symmetric_ECB *ecb) { int err; LTC_ARGCHK(key != NULL); LTC_ARGCHK(ecb != NULL); if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { return err; } ecb->cipher = cipher; ecb->blocklen = cipher_descriptor[cipher].block_length; return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &ecb->key); } #endif --- NEW FILE: ecb_decrypt.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file ecb_decrypt.c ECB implementation, decrypt a block, Tom St Denis */ #ifdef ECB /** ECB decrypt @param ct Ciphertext @param pt [out] Plaintext @param len The number of octets to process (must be multiple of the cipher block size) @param ecb ECB state @return CRYPT_OK if successful */ int ecb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_ECB *ecb) { int err; LTC_ARGCHK(pt != NULL); LTC_ARGCHK(ct != NULL); LTC_ARGCHK(ecb != NULL); if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) { return err; } if (len % cipher_descriptor[ecb->cipher].block_length) { return CRYPT_INVALID_ARG; } /* check for accel */ if (cipher_descriptor[ecb->cipher].accel_ecb_decrypt != NULL) { cipher_descriptor[ecb->cipher].accel_ecb_decrypt(ct, pt, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key); } else { while (len) { cipher_descriptor[ecb->cipher].ecb_decrypt(ct, pt, &ecb->key); pt += cipher_descriptor[ecb->cipher].block_length; ct += cipher_descriptor[ecb->cipher].block_length; len -= cipher_descriptor[ecb->cipher].block_length; } } return CRYPT_OK; } #endif --- NEW FILE: ecb_done.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file ecb_done.c ECB implementation, finish chain, Tom St Denis */ #ifdef ECB /** Terminate the chain @param rcb The ECB chain to terminate @return CRYPT_OK on success */ int ecb_done(symmetric_ECB *ecb) { int err; LTC_ARGCHK(ecb != NULL); if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) { return err; } cipher_descriptor[ecb->cipher].done(&ecb->key); return CRYPT_OK; } #endif |