aes_cfb.c
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/*
* Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/aes.h>
#include <openssl/modes.h>
/*
* The input and output encrypted as though 128bit cfb mode is being used.
* The extra state information to record how much of the 128bit block we have
* used is contained in *num;
*/
void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const AES_KEY *key,
unsigned char *ivec, int *num, const int enc)
{
CRYPTO_cfb128_encrypt(in, out, length, key, ivec, num, enc,
(block128_f) AES_encrypt);
}
/* N.B. This expects the input to be packed, MS bit first */
void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const AES_KEY *key,
unsigned char *ivec, int *num, const int enc)
{
CRYPTO_cfb128_1_encrypt(in, out, length, key, ivec, num, enc,
(block128_f) AES_encrypt);
}
void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const AES_KEY *key,
unsigned char *ivec, int *num, const int enc)
{
CRYPTO_cfb128_8_encrypt(in, out, length, key, ivec, num, enc,
(block128_f) AES_encrypt);
}