diff options
Diffstat (limited to 'thirdparty/openssl/crypto/evp/digest.c')
| -rw-r--r-- | thirdparty/openssl/crypto/evp/digest.c | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/thirdparty/openssl/crypto/evp/digest.c b/thirdparty/openssl/crypto/evp/digest.c deleted file mode 100644 index 4db179629d..0000000000 --- a/thirdparty/openssl/crypto/evp/digest.c +++ /dev/null @@ -1,408 +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 - -#ifdef OPENSSL_FIPS -# include <openssl/fips.h> -# include "evp_locl.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); -#ifdef OPENSSL_FIPS - /* If FIPS mode switch to approved implementation if possible */ - if (FIPS_mode()) { - const EVP_MD *fipsmd; - if (type) { - fipsmd = evp_get_fips_md(type); - if (fipsmd) - type = fipsmd; - } - } -#endif -#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; - } - type = ctx->digest; - } -#endif - if (ctx->digest != type) { - if (ctx->digest && ctx->digest->ctx_size) { - OPENSSL_free(ctx->md_data); - ctx->md_data = NULL; - } - 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; -#ifdef OPENSSL_FIPS - if (FIPS_mode()) { - if (FIPS_digestinit(ctx, type)) - return 1; - OPENSSL_free(ctx->md_data); - ctx->md_data = NULL; - return 0; - } -#endif - return ctx->digest->init(ctx); -} - -int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) -{ -#ifdef OPENSSL_FIPS - if (FIPS_mode()) - return FIPS_digestupdate(ctx, data, count); -#endif - 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; -#ifdef OPENSSL_FIPS - if (FIPS_mode()) - return FIPS_digestfinal(ctx, md, size); -#endif - - 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); - } - OPENSSL_cleanse(ctx->md_data, 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) -{ - if (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) -{ -#ifndef OPENSSL_FIPS - /* - * 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); - } -#endif - 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 -#ifdef OPENSSL_FIPS - FIPS_md_ctx_cleanup(ctx); -#endif - memset(ctx, '\0', sizeof *ctx); - - return 1; -} |