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Add cipher_crypt()

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This commit is contained in:
Manuel Pégourié-Gonnard
2014-05-12 13:46:08 +02:00
parent 64bf996fd9
commit 3c1d150b3d
2 changed files with 62 additions and 2 deletions
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28
library/cipher.c
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@ -771,6 +771,34 @@ int cipher_check_tag( cipher_context_t *ctx,
}
#endif /* POLARSSL_CIPHER_MODE_AEAD */
/*
* Packet-oriented wrapper for non-AEAD modes
*/
int cipher_crypt( cipher_context_t *ctx,
const unsigned char *iv, size_t iv_len,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen )
{
int ret;
size_t finish_olen;
if( ( ret = cipher_set_iv( ctx, iv, iv_len ) ) != 0 )
return( ret );
if( ( ret = cipher_reset( ctx ) ) != 0 )
return( ret );
if( ( ret = cipher_update( ctx, input, ilen, output, olen ) ) != 0 )
return( ret );
if( ( ret = cipher_finish( ctx, output + *olen, &finish_olen ) ) != 0 )
return( ret );
*olen += finish_olen;
return( 0 );
}
#if defined(POLARSSL_SELF_TEST)
/*