diff options
Diffstat (limited to 'crypto/modes/cfb128.c')
-rw-r--r-- | crypto/modes/cfb128.c | 70 |
1 files changed, 7 insertions, 63 deletions
diff --git a/crypto/modes/cfb128.c b/crypto/modes/cfb128.c index d4ecbd08eed1..e439567fe59f 100644 --- a/crypto/modes/cfb128.c +++ b/crypto/modes/cfb128.c @@ -1,64 +1,16 @@ -/* ==================================================================== - * Copyright (c) 2008 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 - * are met: - * - * 1. Redistributions of source code must retain the above 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 acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED 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 OpenSSL PROJECT OR - * ITS 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. - * ==================================================================== +/* + * Copyright 2008-2016 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/crypto.h> #include "modes_lcl.h" #include <string.h> -#ifndef MODES_DEBUG -# ifndef NDEBUG -# define NDEBUG -# endif -#endif -#include <assert.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 @@ -72,8 +24,6 @@ void CRYPTO_cfb128_encrypt(const unsigned char *in, unsigned char *out, unsigned int n; size_t l = 0; - assert(in && out && key && ivec && num); - n = *num; if (enc) { @@ -190,7 +140,7 @@ static void cfbr_encrypt_block(const unsigned char *in, unsigned char *out, block128_f block) { int n, rem, num; - unsigned char ovec[16 * 2 + 1]; /* +1 because we dererefence (but don't + unsigned char ovec[16 * 2 + 1]; /* +1 because we dereference (but don't * use) one byte off the end */ if (nbits <= 0 || nbits > 128) @@ -228,9 +178,6 @@ void CRYPTO_cfb128_1_encrypt(const unsigned char *in, unsigned char *out, size_t n; unsigned char c[1], d[1]; - assert(in && out && key && ivec && num); - assert(*num == 0); - for (n = 0; n < bits; ++n) { c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0; cfbr_encrypt_block(c, d, 1, key, ivec, enc, block); @@ -246,9 +193,6 @@ void CRYPTO_cfb128_8_encrypt(const unsigned char *in, unsigned char *out, { size_t n; - assert(in && out && key && ivec && num); - assert(*num == 0); - for (n = 0; n < length; ++n) cfbr_encrypt_block(&in[n], &out[n], 8, key, ivec, enc, block); } |