diff options
Diffstat (limited to 'crypto/aes/aes_ofb.c')
| -rw-r--r-- | crypto/aes/aes_ofb.c | 94 |
1 files changed, 6 insertions, 88 deletions
diff --git a/crypto/aes/aes_ofb.c b/crypto/aes/aes_ofb.c index f358bb39e2..50bf0b8325 100644 --- a/crypto/aes/aes_ofb.c +++ b/crypto/aes/aes_ofb.c @@ -1,6 +1,6 @@ /* crypto/aes/aes_ofb.c -*- mode:C; c-file-style: "eay" -*- */ /* ==================================================================== - * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -48,95 +48,13 @@ * ==================================================================== * */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#ifndef AES_DEBUG -# ifndef NDEBUG -# define NDEBUG -# endif -#endif -#include <assert.h> #include <openssl/aes.h> -#include "aes_locl.h" +#include <openssl/modes.h> -/* The input and output encrypted as though 128bit ofb 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_ofb128_encrypt(const unsigned char *in, unsigned char *out, - const unsigned long length, const AES_KEY *key, - unsigned char *ivec, int *num) { - - unsigned int n; - unsigned long l=length; - - assert(in && out && key && ivec && num); - - n = *num; - - while (l--) { - if (n == 0) { - AES_encrypt(ivec, ivec, key); - } - *(out++) = *(in++) ^ ivec[n]; - n = (n+1) % AES_BLOCK_SIZE; - } - - *num=n; + size_t length, const AES_KEY *key, + unsigned char *ivec, int *num) +{ + CRYPTO_ofb128_encrypt(in,out,length,key,ivec,num,(block128_f)AES_encrypt); } |