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47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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#include "tomcrypt.h"
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/**
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@file ecb_start.c
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ECB implementation, start chain, Tom St Denis
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*/
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#ifdef LTC_ECB_MODE
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/**
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Initialize a ECB context
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@param cipher The index of the cipher desired
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@param key The secret key
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@param keylen The length of the secret key (octets)
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@param num_rounds Number of rounds in the cipher desired (0 for default)
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@param ecb The ECB state to initialize
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@return CRYPT_OK if successful
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*/
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int ecb_start(int cipher, const unsigned char *key, int keylen, int num_rounds, symmetric_ECB *ecb)
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{
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int err;
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LTC_ARGCHK(key != NULL);
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LTC_ARGCHK(ecb != NULL);
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if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
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return err;
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}
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ecb->cipher = cipher;
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ecb->blocklen = cipher_descriptor[cipher].block_length;
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return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &ecb->key);
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}
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#endif
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/* ref: HEAD -> master, tag: v1.18.2 */
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/* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */
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/* commit time: 2018-07-01 22:49:01 +0200 */
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