50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
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#include "mycrypt.h"
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#ifdef ECB
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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 errno;
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_ARGCHK(key != NULL);
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_ARGCHK(ecb != NULL);
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if ((errno = cipher_is_valid(cipher)) != CRYPT_OK) {
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return errno;
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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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int ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_ECB *ecb)
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{
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int errno;
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_ARGCHK(pt != NULL);
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_ARGCHK(ct != NULL);
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_ARGCHK(ecb != NULL);
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if ((errno = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
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return errno;
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}
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cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key);
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return CRYPT_OK;
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}
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int ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_ECB *ecb)
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{
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int errno;
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_ARGCHK(pt != NULL);
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_ARGCHK(ct != NULL);
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_ARGCHK(ecb != NULL);
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if ((errno = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
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return errno;
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}
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cipher_descriptor[ecb->cipher].ecb_decrypt(ct, pt, &ecb->key);
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return CRYPT_OK;
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}
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#endif
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