diff options
Diffstat (limited to 'crypto/asn1/a_sign.c')
| -rw-r--r-- | crypto/asn1/a_sign.c | 232 |
1 files changed, 65 insertions, 167 deletions
diff --git a/crypto/asn1/a_sign.c b/crypto/asn1/a_sign.c index 51c6a0c34daf..130e23eaaa1e 100644 --- a/crypto/asn1/a_sign.c +++ b/crypto/asn1/a_sign.c @@ -1,129 +1,25 @@ -/* crypto/asn1/a_sign.c */ -/* 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.] - */ -/* ==================================================================== - * Copyright (c) 1998-2003 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 1995-2016 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 <stdio.h> #include <time.h> +#include <sys/types.h> -#include "cryptlib.h" - -#ifndef NO_SYS_TYPES_H -# include <sys/types.h> -#endif +#include "internal/cryptlib.h" #include <openssl/bn.h> #include <openssl/evp.h> #include <openssl/x509.h> #include <openssl/objects.h> #include <openssl/buffer.h> -#include "asn1_locl.h" +#include "internal/asn1_int.h" +#include "internal/evp_int.h" #ifndef NO_ASN1_OLD @@ -131,12 +27,15 @@ int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2, ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey, const EVP_MD *type) { - EVP_MD_CTX ctx; + EVP_MD_CTX *ctx = EVP_MD_CTX_new(); unsigned char *p, *buf_in = NULL, *buf_out = NULL; int i, inl = 0, outl = 0, outll = 0; X509_ALGOR *a; - EVP_MD_CTX_init(&ctx); + if (ctx == NULL) { + ASN1err(ASN1_F_ASN1_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } for (i = 0; i < 2; i++) { if (i == 0) a = algor1; @@ -171,9 +70,9 @@ int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2, } } inl = i2d(data, NULL); - buf_in = (unsigned char *)OPENSSL_malloc((unsigned int)inl); + buf_in = OPENSSL_malloc((unsigned int)inl); outll = outl = EVP_PKEY_size(pkey); - buf_out = (unsigned char *)OPENSSL_malloc((unsigned int)outl); + buf_out = OPENSSL_malloc((unsigned int)outl); if ((buf_in == NULL) || (buf_out == NULL)) { outl = 0; ASN1err(ASN1_F_ASN1_SIGN, ERR_R_MALLOC_FAILURE); @@ -182,16 +81,15 @@ int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2, p = buf_in; i2d(data, &p); - if (!EVP_SignInit_ex(&ctx, type, NULL) - || !EVP_SignUpdate(&ctx, (unsigned char *)buf_in, inl) - || !EVP_SignFinal(&ctx, (unsigned char *)buf_out, + if (!EVP_SignInit_ex(ctx, type, NULL) + || !EVP_SignUpdate(ctx, (unsigned char *)buf_in, inl) + || !EVP_SignFinal(ctx, (unsigned char *)buf_out, (unsigned int *)&outl, pkey)) { outl = 0; ASN1err(ASN1_F_ASN1_SIGN, ERR_R_EVP_LIB); goto err; } - if (signature->data != NULL) - OPENSSL_free(signature->data); + OPENSSL_free(signature->data); signature->data = buf_out; buf_out = NULL; signature->length = outl; @@ -202,16 +100,10 @@ int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2, signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); signature->flags |= ASN1_STRING_FLAG_BITS_LEFT; err: - EVP_MD_CTX_cleanup(&ctx); - if (buf_in != NULL) { - OPENSSL_cleanse((char *)buf_in, (unsigned int)inl); - OPENSSL_free(buf_in); - } - if (buf_out != NULL) { - OPENSSL_cleanse((char *)buf_out, outll); - OPENSSL_free(buf_out); - } - return (outl); + EVP_MD_CTX_free(ctx); + OPENSSL_clear_free((char *)buf_in, (unsigned int)inl); + OPENSSL_clear_free((char *)buf_out, outll); + return outl; } #endif @@ -220,13 +112,22 @@ int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2, ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey, const EVP_MD *type) { - EVP_MD_CTX ctx; - EVP_MD_CTX_init(&ctx); - if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey)) { - EVP_MD_CTX_cleanup(&ctx); + int rv; + EVP_MD_CTX *ctx = EVP_MD_CTX_new(); + + if (ctx == NULL) { + ASN1err(ASN1_F_ASN1_ITEM_SIGN, ERR_R_MALLOC_FAILURE); return 0; } - return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx); + if (!EVP_DigestSignInit(ctx, NULL, type, NULL, pkey)) { + EVP_MD_CTX_free(ctx); + return 0; + } + + rv = ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, ctx); + + EVP_MD_CTX_free(ctx); + return rv; } int ASN1_item_sign_ctx(const ASN1_ITEM *it, @@ -241,11 +142,16 @@ int ASN1_item_sign_ctx(const ASN1_ITEM *it, int rv; type = EVP_MD_CTX_md(ctx); - pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx); + pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx)); - if (!type || !pkey) { + if (pkey == NULL) { ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISED); - return 0; + goto err; + } + + if (pkey->ameth == NULL) { + ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED); + goto err; } if (pkey->ameth->item_sign) { @@ -263,21 +169,22 @@ int ASN1_item_sign_ctx(const ASN1_ITEM *it, ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB); if (rv <= 1) goto err; - } else + } else { rv = 2; + } if (rv == 2) { - if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) { - if (!pkey->ameth || - !OBJ_find_sigid_by_algs(&signid, - EVP_MD_nid(type), - pkey->ameth->pkey_id)) { - ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, - ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED); - return 0; - } - } else - signid = type->pkey_type; + if (type == NULL) { + ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISED); + goto err; + } + if (!OBJ_find_sigid_by_algs(&signid, + EVP_MD_nid(type), + pkey->ameth->pkey_id)) { + ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, + ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED); + goto err; + } if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL) paramtype = V_ASN1_NULL; @@ -300,14 +207,12 @@ int ASN1_item_sign_ctx(const ASN1_ITEM *it, goto err; } - if (!EVP_DigestSignUpdate(ctx, buf_in, inl) - || !EVP_DigestSignFinal(ctx, buf_out, &outl)) { + if (!EVP_DigestSign(ctx, buf_out, &outl, buf_in, inl)) { outl = 0; ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB); goto err; } - if (signature->data != NULL) - OPENSSL_free(signature->data); + OPENSSL_free(signature->data); signature->data = buf_out; buf_out = NULL; signature->length = outl; @@ -318,14 +223,7 @@ int ASN1_item_sign_ctx(const ASN1_ITEM *it, signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); signature->flags |= ASN1_STRING_FLAG_BITS_LEFT; err: - EVP_MD_CTX_cleanup(ctx); - if (buf_in != NULL) { - OPENSSL_cleanse((char *)buf_in, (unsigned int)inl); - OPENSSL_free(buf_in); - } - if (buf_out != NULL) { - OPENSSL_cleanse((char *)buf_out, outll); - OPENSSL_free(buf_out); - } - return (outl); + OPENSSL_clear_free((char *)buf_in, (unsigned int)inl); + OPENSSL_clear_free((char *)buf_out, outll); + return outl; } |