X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fe_xcbc_d.c;h=d402606b6d7f0ec5aa36ae0444e0f0f4db0309cc;hp=a6f849e93d01393dfb646f7d82db767f791b7c46;hb=25f2138b0ab54a65ba713c093ca3734d88f7cb51;hpb=c2e4f17c1a0d4d5115c6ede9492de1615fe392ac diff --git a/crypto/evp/e_xcbc_d.c b/crypto/evp/e_xcbc_d.c index a6f849e93d..d402606b6d 100644 --- a/crypto/evp/e_xcbc_d.c +++ b/crypto/evp/e_xcbc_d.c @@ -1,122 +1,83 @@ -/* crypto/evp/e_xcbc_d.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. 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.] + * Licensed under the Apache License 2.0 (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 */ -#ifndef OPENSSL_NO_DES #include -#include "cryptlib.h" -#include -#include -#include +#include "internal/cryptlib.h" + +#ifndef OPENSSL_NO_DES + +# include +# include +# include "crypto/evp.h" +# include static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv,int enc); + const unsigned char *iv, int enc); static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl); - + const unsigned char *in, size_t inl); -typedef struct - { - DES_key_schedule ks;/* key schedule */ +typedef struct { + DES_key_schedule ks; /* key schedule */ DES_cblock inw; DES_cblock outw; - } DESX_CBC_KEY; +} DESX_CBC_KEY; -#define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data) +# define data(ctx) EVP_C_DATA(DESX_CBC_KEY,ctx) -static const EVP_CIPHER d_xcbc_cipher= - { - NID_desx_cbc, - 8,24,8, - EVP_CIPH_CBC_MODE, - desx_cbc_init_key, - desx_cbc_cipher, - NULL, - sizeof(DESX_CBC_KEY), - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv, - NULL - }; +static const EVP_CIPHER d_xcbc_cipher = { + NID_desx_cbc, + 8, 24, 8, + EVP_CIPH_CBC_MODE, + desx_cbc_init_key, + desx_cbc_cipher, + NULL, + sizeof(DESX_CBC_KEY), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL, + NULL +}; const EVP_CIPHER *EVP_desx_cbc(void) - { - return(&d_xcbc_cipher); - } - +{ + return &d_xcbc_cipher; +} + static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - DES_cblock *deskey = (DES_cblock *)key; + const unsigned char *iv, int enc) +{ + DES_cblock *deskey = (DES_cblock *)key; - DES_set_key_unchecked(deskey,&data(ctx)->ks); - memcpy(&data(ctx)->inw[0],&key[8],8); - memcpy(&data(ctx)->outw[0],&key[16],8); + DES_set_key_unchecked(deskey, &data(ctx)->ks); + memcpy(&data(ctx)->inw[0], &key[8], 8); + memcpy(&data(ctx)->outw[0], &key[16], 8); - return 1; - } + return 1; +} static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) - { - DES_xcbc_encrypt(in,out,inl,&data(ctx)->ks, - (DES_cblock *)&(ctx->iv[0]), - &data(ctx)->inw, - &data(ctx)->outw, - ctx->encrypt); - return 1; - } + const unsigned char *in, size_t inl) +{ + while (inl >= EVP_MAXCHUNK) { + DES_xcbc_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks, + (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), + &data(ctx)->inw, &data(ctx)->outw, + EVP_CIPHER_CTX_encrypting(ctx)); + inl -= EVP_MAXCHUNK; + in += EVP_MAXCHUNK; + out += EVP_MAXCHUNK; + } + if (inl) + DES_xcbc_encrypt(in, out, (long)inl, &data(ctx)->ks, + (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), + &data(ctx)->inw, &data(ctx)->outw, + EVP_CIPHER_CTX_encrypting(ctx)); + return 1; +} #endif