/*

 * 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);

}