diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/modes/ctr128.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/modes/ctr128.c | 70 |
1 files changed, 62 insertions, 8 deletions
diff --git a/Cryptlib/OpenSSL/crypto/modes/ctr128.c b/Cryptlib/OpenSSL/crypto/modes/ctr128.c index 03920b44..d4b22728 100644 --- a/Cryptlib/OpenSSL/crypto/modes/ctr128.c +++ b/Cryptlib/OpenSSL/crypto/modes/ctr128.c @@ -1,16 +1,64 @@ -/* - * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved. +/* ==================================================================== + * 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. + * ==================================================================== * - * 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> + /* * NOTE: the IV/counter CTR mode is big-endian. The code itself is * endian-neutral. @@ -65,7 +113,7 @@ static void ctr128_inc_aligned(unsigned char *counter) * before the first call to CRYPTO_ctr128_encrypt(). This algorithm assumes * that the counter is in the x lower bits of the IV (ivec), and that the * application has full control over overflow and the rest of the IV. This - * implementation takes NO responsibility for checking that the counter + * implementation takes NO responsability for checking that the counter * doesn't overflow into the rest of the IV when incremented. */ void CRYPTO_ctr128_encrypt(const unsigned char *in, unsigned char *out, @@ -77,6 +125,9 @@ void CRYPTO_ctr128_encrypt(const unsigned char *in, unsigned char *out, unsigned int n; size_t l = 0; + assert(in && out && key && ecount_buf && num); + assert(*num < 16); + n = *num; #if !defined(OPENSSL_SMALL_FOOTPRINT) @@ -152,6 +203,9 @@ void CRYPTO_ctr128_encrypt_ctr32(const unsigned char *in, unsigned char *out, { unsigned int n, ctr32; + assert(in && out && key && ecount_buf && num); + assert(*num < 16); + n = *num; while (n && len) { @@ -184,7 +238,7 @@ void CRYPTO_ctr128_encrypt_ctr32(const unsigned char *in, unsigned char *out, (*func) (in, out, blocks, key, ivec); /* (*ctr) does not update ivec, caller does: */ PUTU32(ivec + 12, ctr32); - /* ... overflow was detected, propagate carry. */ + /* ... overflow was detected, propogate carry. */ if (ctr32 == 0) ctr96_inc(ivec); blocks *= 16; |