X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fe_rc2.c;h=375714a6f47cf87ff27c3a3cce4e2d3929407c1c;hp=799858f2f61b9320ab66a5881e3efed9d3064a3b;hb=703170d4b9da1b3adc0e4d87719a5156080b2dca;hpb=dbad169019598981174ff46c7a9bf58373b0e53a diff --git a/crypto/evp/e_rc2.c b/crypto/evp/e_rc2.c index 799858f2f6..375714a6f4 100644 --- a/crypto/evp/e_rc2.c +++ b/crypto/evp/e_rc2.c @@ -1,229 +1,191 @@ -/* crypto/evp/e_rc2.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2018 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 */ +#include +#include "internal/cryptlib.h" + #ifndef OPENSSL_NO_RC2 -#include -#include "cryptlib.h" -#include -#include -#include "evp_locl.h" -#include +# include +# include +# include "internal/evp_int.h" +# include static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv,int enc); + const unsigned char *iv, int enc); static int rc2_meth_to_magic(EVP_CIPHER_CTX *ctx); static int rc2_magic_to_meth(int i); static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type); static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type); static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); -typedef struct - { - int key_bits; /* effective key bits */ - RC2_KEY ks; /* key schedule */ - } EVP_RC2_KEY; +typedef struct { + int key_bits; /* effective key bits */ + RC2_KEY ks; /* key schedule */ +} EVP_RC2_KEY; -#define data(ctx) ((EVP_RC2_KEY *)(ctx)->cipher_data) +# define data(ctx) EVP_C_DATA(EVP_RC2_KEY,ctx) IMPLEMENT_BLOCK_CIPHER(rc2, ks, RC2, EVP_RC2_KEY, NID_rc2, - 8, - RC2_KEY_LENGTH, 8, - EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, - rc2_init_key, NULL, - rc2_set_asn1_type_and_iv, rc2_get_asn1_type_and_iv, - rc2_ctrl) - -#define RC2_40_MAGIC 0xa0 -#define RC2_64_MAGIC 0x78 -#define RC2_128_MAGIC 0x3a - -static const EVP_CIPHER r2_64_cbc_cipher= - { - NID_rc2_64_cbc, - 8,8 /* 64 bit */,8, - EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, - rc2_init_key, - rc2_cbc_cipher, - NULL, - sizeof(EVP_RC2_KEY), - rc2_set_asn1_type_and_iv, - rc2_get_asn1_type_and_iv, - rc2_ctrl, - NULL - }; - -static const EVP_CIPHER r2_40_cbc_cipher= - { - NID_rc2_40_cbc, - 8,5 /* 40 bit */,8, - EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, - rc2_init_key, - rc2_cbc_cipher, - NULL, - sizeof(EVP_RC2_KEY), - rc2_set_asn1_type_and_iv, - rc2_get_asn1_type_and_iv, - rc2_ctrl, - NULL - }; + 8, + RC2_KEY_LENGTH, 8, 64, + EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, + rc2_init_key, NULL, + rc2_set_asn1_type_and_iv, rc2_get_asn1_type_and_iv, + rc2_ctrl) +# define RC2_40_MAGIC 0xa0 +# define RC2_64_MAGIC 0x78 +# define RC2_128_MAGIC 0x3a +static const EVP_CIPHER r2_64_cbc_cipher = { + NID_rc2_64_cbc, + 8, 8 /* 64 bit */ , 8, + EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, + rc2_init_key, + rc2_cbc_cipher, + NULL, + sizeof(EVP_RC2_KEY), + rc2_set_asn1_type_and_iv, + rc2_get_asn1_type_and_iv, + rc2_ctrl, + NULL +}; + +static const EVP_CIPHER r2_40_cbc_cipher = { + NID_rc2_40_cbc, + 8, 5 /* 40 bit */ , 8, + EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, + rc2_init_key, + rc2_cbc_cipher, + NULL, + sizeof(EVP_RC2_KEY), + rc2_set_asn1_type_and_iv, + rc2_get_asn1_type_and_iv, + rc2_ctrl, + NULL +}; const EVP_CIPHER *EVP_rc2_64_cbc(void) - { - return(&r2_64_cbc_cipher); - } +{ + return &r2_64_cbc_cipher; +} const EVP_CIPHER *EVP_rc2_40_cbc(void) - { - return(&r2_40_cbc_cipher); - } - +{ + return &r2_40_cbc_cipher; +} + static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - RC2_set_key(&data(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx), - key,data(ctx)->key_bits); - return 1; - } + const unsigned char *iv, int enc) +{ + RC2_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), + key, data(ctx)->key_bits); + return 1; +} static int rc2_meth_to_magic(EVP_CIPHER_CTX *e) - { - int i; - - EVP_CIPHER_CTX_ctrl(e, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i); - if (i == 128) return(RC2_128_MAGIC); - else if (i == 64) return(RC2_64_MAGIC); - else if (i == 40) return(RC2_40_MAGIC); - else return(0); - } +{ + int i; + + if (EVP_CIPHER_CTX_ctrl(e, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i) <= 0) + return 0; + if (i == 128) + return RC2_128_MAGIC; + else if (i == 64) + return RC2_64_MAGIC; + else if (i == 40) + return RC2_40_MAGIC; + else + return 0; +} static int rc2_magic_to_meth(int i) - { - if (i == RC2_128_MAGIC) return 128; - else if (i == RC2_64_MAGIC) return 64; - else if (i == RC2_40_MAGIC) return 40; - else - { - EVPerr(EVP_F_RC2_MAGIC_TO_METH,EVP_R_UNSUPPORTED_KEY_SIZE); - return(0); - } - } +{ + if (i == RC2_128_MAGIC) + return 128; + else if (i == RC2_64_MAGIC) + return 64; + else if (i == RC2_40_MAGIC) + return 40; + else { + EVPerr(EVP_F_RC2_MAGIC_TO_METH, EVP_R_UNSUPPORTED_KEY_SIZE); + return 0; + } +} static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) - { - long num=0; - int i=0,l; - int key_bits; - unsigned char iv[EVP_MAX_IV_LENGTH]; - - if (type != NULL) - { - l=EVP_CIPHER_CTX_iv_length(c); - i=ASN1_TYPE_get_int_octetstring(type,&num,iv,l); - if (i != l) - return(-1); - key_bits =rc2_magic_to_meth((int)num); - if (!key_bits) - return(-1); - if(i > 0) EVP_CipherInit(c, NULL, NULL, iv, -1); - EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_RC2_KEY_BITS, key_bits, NULL); - EVP_CIPHER_CTX_set_key_length(c, key_bits / 8); - } - return(i); - } +{ + long num = 0; + int i = 0; + int key_bits; + unsigned int l; + unsigned char iv[EVP_MAX_IV_LENGTH]; + + if (type != NULL) { + l = EVP_CIPHER_CTX_iv_length(c); + OPENSSL_assert(l <= sizeof(iv)); + i = ASN1_TYPE_get_int_octetstring(type, &num, iv, l); + if (i != (int)l) + return -1; + key_bits = rc2_magic_to_meth((int)num); + if (!key_bits) + return -1; + if (i > 0 && !EVP_CipherInit_ex(c, NULL, NULL, NULL, iv, -1)) + return -1; + if (EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_RC2_KEY_BITS, key_bits, + NULL) <= 0 + || EVP_CIPHER_CTX_set_key_length(c, key_bits / 8) <= 0) + return -1; + } + return i; +} static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) - { - long num; - int i=0,j; - - if (type != NULL) - { - num=rc2_meth_to_magic(c); - j=EVP_CIPHER_CTX_iv_length(c); - i=ASN1_TYPE_set_int_octetstring(type,num,c->oiv,j); - } - return(i); - } +{ + long num; + int i = 0, j; + + if (type != NULL) { + num = rc2_meth_to_magic(c); + j = EVP_CIPHER_CTX_iv_length(c); + i = ASN1_TYPE_set_int_octetstring(type, num, + (unsigned char *)EVP_CIPHER_CTX_original_iv(c), + j); + } + return i; +} static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) - { - switch(type) - { - case EVP_CTRL_INIT: - data(c)->key_bits = EVP_CIPHER_CTX_key_length(c) * 8; - return 1; - - case EVP_CTRL_GET_RC2_KEY_BITS: - *(int *)ptr = data(c)->key_bits; - return 1; - - case EVP_CTRL_SET_RC2_KEY_BITS: - if(arg > 0) - { - data(c)->key_bits = arg; - return 1; - } - return 0; - - default: - return -1; - } - } +{ + switch (type) { + case EVP_CTRL_INIT: + data(c)->key_bits = EVP_CIPHER_CTX_key_length(c) * 8; + return 1; + + case EVP_CTRL_GET_RC2_KEY_BITS: + *(int *)ptr = data(c)->key_bits; + return 1; + + case EVP_CTRL_SET_RC2_KEY_BITS: + if (arg > 0) { + data(c)->key_bits = arg; + return 1; + } + return 0; +# ifdef PBE_PRF_TEST + case EVP_CTRL_PBE_PRF_NID: + *(int *)ptr = NID_hmacWithMD5; + return 1; +# endif + + default: + return -1; + } +} #endif