diff options
Diffstat (limited to 'openssl/crypto/evp/digest.c')
| -rw-r--r-- | openssl/crypto/evp/digest.c | 377 |
1 files changed, 0 insertions, 377 deletions
diff --git a/openssl/crypto/evp/digest.c b/openssl/crypto/evp/digest.c deleted file mode 100644 index 982ba2b1..00000000 --- a/openssl/crypto/evp/digest.c +++ /dev/null @@ -1,377 +0,0 @@ -/* crypto/evp/digest.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) 1998-2001 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). - * - */ - -#include <stdio.h> -#include "cryptlib.h" -#include <openssl/objects.h> -#include <openssl/evp.h> -#ifndef OPENSSL_NO_ENGINE -#include <openssl/engine.h> -#endif - -void EVP_MD_CTX_init(EVP_MD_CTX *ctx) - { - memset(ctx,'\0',sizeof *ctx); - } - -EVP_MD_CTX *EVP_MD_CTX_create(void) - { - EVP_MD_CTX *ctx=OPENSSL_malloc(sizeof *ctx); - - if (ctx) - EVP_MD_CTX_init(ctx); - - return ctx; - } - -int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) - { - EVP_MD_CTX_init(ctx); - return EVP_DigestInit_ex(ctx, type, NULL); - } - -int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl) - { - EVP_MD_CTX_clear_flags(ctx,EVP_MD_CTX_FLAG_CLEANED); -#ifndef OPENSSL_NO_ENGINE - /* Whether it's nice or not, "Inits" can be used on "Final"'d contexts - * so this context may already have an ENGINE! Try to avoid releasing - * the previous handle, re-querying for an ENGINE, and having a - * reinitialisation, when it may all be unecessary. */ - if (ctx->engine && ctx->digest && (!type || - (type && (type->type == ctx->digest->type)))) - goto skip_to_init; - if (type) - { - /* Ensure an ENGINE left lying around from last time is cleared - * (the previous check attempted to avoid this if the same - * ENGINE and EVP_MD could be used). */ - if(ctx->engine) - ENGINE_finish(ctx->engine); - if(impl) - { - if (!ENGINE_init(impl)) - { - EVPerr(EVP_F_EVP_DIGESTINIT_EX,EVP_R_INITIALIZATION_ERROR); - return 0; - } - } - else - /* Ask if an ENGINE is reserved for this job */ - impl = ENGINE_get_digest_engine(type->type); - if(impl) - { - /* There's an ENGINE for this job ... (apparently) */ - const EVP_MD *d = ENGINE_get_digest(impl, type->type); - if(!d) - { - /* Same comment from evp_enc.c */ - EVPerr(EVP_F_EVP_DIGESTINIT_EX,EVP_R_INITIALIZATION_ERROR); - ENGINE_finish(impl); - return 0; - } - /* We'll use the ENGINE's private digest definition */ - type = d; - /* Store the ENGINE functional reference so we know - * 'type' came from an ENGINE and we need to release - * it when done. */ - ctx->engine = impl; - } - else - ctx->engine = NULL; - } - else - if(!ctx->digest) - { - EVPerr(EVP_F_EVP_DIGESTINIT_EX,EVP_R_NO_DIGEST_SET); - return 0; - } -#endif - if (ctx->digest != type) - { - if (ctx->digest && ctx->digest->ctx_size) - OPENSSL_free(ctx->md_data); - ctx->digest=type; - if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) - { - ctx->update = type->update; - ctx->md_data=OPENSSL_malloc(type->ctx_size); - if (ctx->md_data == NULL) - { - EVPerr(EVP_F_EVP_DIGESTINIT_EX, - ERR_R_MALLOC_FAILURE); - return 0; - } - } - } -#ifndef OPENSSL_NO_ENGINE -skip_to_init: -#endif - if (ctx->pctx) - { - int r; - r = EVP_PKEY_CTX_ctrl(ctx->pctx, -1, EVP_PKEY_OP_TYPE_SIG, - EVP_PKEY_CTRL_DIGESTINIT, 0, ctx); - if (r <= 0 && (r != -2)) - return 0; - } - if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) - return 1; - return ctx->digest->init(ctx); - } - -int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) - { - return ctx->update(ctx,data,count); - } - -/* The caller can assume that this removes any secret data from the context */ -int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) - { - int ret; - ret = EVP_DigestFinal_ex(ctx, md, size); - EVP_MD_CTX_cleanup(ctx); - return ret; - } - -/* The caller can assume that this removes any secret data from the context */ -int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) - { - int ret; - - OPENSSL_assert(ctx->digest->md_size <= EVP_MAX_MD_SIZE); - ret=ctx->digest->final(ctx,md); - if (size != NULL) - *size=ctx->digest->md_size; - if (ctx->digest->cleanup) - { - ctx->digest->cleanup(ctx); - EVP_MD_CTX_set_flags(ctx,EVP_MD_CTX_FLAG_CLEANED); - } - memset(ctx->md_data,0,ctx->digest->ctx_size); - return ret; - } - -int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) - { - EVP_MD_CTX_init(out); - return EVP_MD_CTX_copy_ex(out, in); - } - -int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) - { - unsigned char *tmp_buf; - if ((in == NULL) || (in->digest == NULL)) - { - EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,EVP_R_INPUT_NOT_INITIALIZED); - return 0; - } -#ifndef OPENSSL_NO_ENGINE - /* Make sure it's safe to copy a digest context using an ENGINE */ - if (in->engine && !ENGINE_init(in->engine)) - { - EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_ENGINE_LIB); - return 0; - } -#endif - - if (out->digest == in->digest) - { - tmp_buf = out->md_data; - EVP_MD_CTX_set_flags(out,EVP_MD_CTX_FLAG_REUSE); - } - else tmp_buf = NULL; - EVP_MD_CTX_cleanup(out); - memcpy(out,in,sizeof *out); - - if (in->md_data && out->digest->ctx_size) - { - if (tmp_buf) - out->md_data = tmp_buf; - else - { - out->md_data=OPENSSL_malloc(out->digest->ctx_size); - if (!out->md_data) - { - EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_MALLOC_FAILURE); - return 0; - } - } - memcpy(out->md_data,in->md_data,out->digest->ctx_size); - } - - out->update = in->update; - - if (in->pctx) - { - out->pctx = EVP_PKEY_CTX_dup(in->pctx); - if (!out->pctx) - { - EVP_MD_CTX_cleanup(out); - return 0; - } - } - - if (out->digest->copy) - return out->digest->copy(out,in); - - return 1; - } - -int EVP_Digest(const void *data, size_t count, - unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl) - { - EVP_MD_CTX ctx; - int ret; - - EVP_MD_CTX_init(&ctx); - EVP_MD_CTX_set_flags(&ctx,EVP_MD_CTX_FLAG_ONESHOT); - ret=EVP_DigestInit_ex(&ctx, type, impl) - && EVP_DigestUpdate(&ctx, data, count) - && EVP_DigestFinal_ex(&ctx, md, size); - EVP_MD_CTX_cleanup(&ctx); - - return ret; - } - -void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx) - { - EVP_MD_CTX_cleanup(ctx); - OPENSSL_free(ctx); - } - -/* This call frees resources associated with the context */ -int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx) - { - /* Don't assume ctx->md_data was cleaned in EVP_Digest_Final, - * because sometimes only copies of the context are ever finalised. - */ - if (ctx->digest && ctx->digest->cleanup - && !EVP_MD_CTX_test_flags(ctx,EVP_MD_CTX_FLAG_CLEANED)) - ctx->digest->cleanup(ctx); - if (ctx->digest && ctx->digest->ctx_size && ctx->md_data - && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) - { - OPENSSL_cleanse(ctx->md_data,ctx->digest->ctx_size); - OPENSSL_free(ctx->md_data); - } - if (ctx->pctx) - EVP_PKEY_CTX_free(ctx->pctx); -#ifndef OPENSSL_NO_ENGINE - if(ctx->engine) - /* The EVP_MD we used belongs to an ENGINE, release the - * functional reference we held for this reason. */ - ENGINE_finish(ctx->engine); -#endif - memset(ctx,'\0',sizeof *ctx); - - return 1; - } |