1 /* 2 * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <openssl/aes.h> 11 #include <openssl/modes.h> 12 13 /* 14 * The input and output encrypted as though 128bit cfb mode is being used. 15 * The extra state information to record how much of the 128bit block we have 16 * used is contained in *num; 17 */ 18 19 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, 20 size_t length, const AES_KEY *key, 21 unsigned char *ivec, int *num, const int enc) 22 { 23 24 CRYPTO_cfb128_encrypt(in, out, length, key, ivec, num, enc, 25 (block128_f) AES_encrypt); 26 } 27 28 /* N.B. This expects the input to be packed, MS bit first */ 29 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, 30 size_t length, const AES_KEY *key, 31 unsigned char *ivec, int *num, const int enc) 32 { 33 CRYPTO_cfb128_1_encrypt(in, out, length, key, ivec, num, enc, 34 (block128_f) AES_encrypt); 35 } 36 37 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, 38 size_t length, const AES_KEY *key, 39 unsigned char *ivec, int *num, const int enc) 40 { 41 CRYPTO_cfb128_8_encrypt(in, out, length, key, ivec, num, enc, 42 (block128_f) AES_encrypt); 43 } 44