1 files changed, 218 insertions, 79 deletions

diff --git a/Cryptlib/OpenSSL/crypto/evp/digest.c b/Cryptlib/OpenSSL/crypto/evp/digest.c
index 65eff7c8..4db17962 100644
--- a/Cryptlib/OpenSSL/crypto/evp/digest.c
+++ b/Cryptlib/OpenSSL/crypto/evp/digest.c
@@ -1,75 +1,173 @@
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+/* 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).
  *
- * 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 "internal/cryptlib.h"
+#include "cryptlib.h"
 #include <openssl/objects.h>
 #include <openssl/evp.h>
-#include <openssl/engine.h>
-#include "internal/evp_int.h"
-#include "evp_locl.h"
-
-/* This call frees resources associated with the context */
-int EVP_MD_CTX_reset(EVP_MD_CTX *ctx)
-{
-    if (ctx == NULL)
-        return 1;
-
-    /*
-     * 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_clear_free(ctx->md_data, ctx->digest->ctx_size);
-    }
-    EVP_PKEY_CTX_free(ctx->pctx);
 #ifndef OPENSSL_NO_ENGINE
-    ENGINE_finish(ctx->engine);
+# include <openssl/engine.h>
 #endif
-    OPENSSL_cleanse(ctx, sizeof(*ctx));
 
-    return 1;
-}
+#ifdef OPENSSL_FIPS
+# include <openssl/fips.h>
+# include "evp_locl.h"
+#endif
 
-EVP_MD_CTX *EVP_MD_CTX_new(void)
+void EVP_MD_CTX_init(EVP_MD_CTX *ctx)
 {
-    return OPENSSL_zalloc(sizeof(EVP_MD_CTX));
+    memset(ctx, '\0', sizeof *ctx);
 }
 
-void EVP_MD_CTX_free(EVP_MD_CTX *ctx)
+EVP_MD_CTX *EVP_MD_CTX_create(void)
 {
-    EVP_MD_CTX_reset(ctx);
-    OPENSSL_free(ctx);
+    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_reset(ctx);
+    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 unnecessary.
+     * reinitialisation, when it may all be unecessary.
      */
-    if (ctx->engine && ctx->digest &&
-        (type == NULL || (type->type == ctx->digest->type)))
+    if (ctx->engine && ctx->digest && (!type ||
+                                       (type
+                                        && (type->type ==
+                                            ctx->digest->type))))
         goto skip_to_init;
     if (type) {
         /*
@@ -77,21 +175,21 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
          * previous check attempted to avoid this if the same ENGINE and
          * EVP_MD could be used).
          */
-        ENGINE_finish(ctx->engine);
-        if (impl != NULL) {
+        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 {
+        } else
             /* Ask if an ENGINE is reserved for this job */
             impl = ENGINE_get_digest_engine(type->type);
-        }
-        if (impl != NULL) {
+        if (impl) {
             /* There's an ENGINE for this job ... (apparently) */
             const EVP_MD *d = ENGINE_get_digest(impl, type->type);
-
-            if (d == NULL) {
+            if (!d) {
+                /* Same comment from evp_enc.c */
                 EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_INITIALIZATION_ERROR);
                 ENGINE_finish(impl);
                 return 0;
@@ -115,13 +213,13 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
 #endif
     if (ctx->digest != type) {
         if (ctx->digest && ctx->digest->ctx_size) {
-            OPENSSL_clear_free(ctx->md_data, 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_zalloc(type->ctx_size);
+            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;
@@ -140,11 +238,24 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
     }
     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);
 }
 
@@ -153,7 +264,7 @@ 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_reset(ctx);
+    EVP_MD_CTX_cleanup(ctx);
     return ret;
 }
 
@@ -161,6 +272,10 @@ int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)
 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);
@@ -176,7 +291,7 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)
 
 int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in)
 {
-    EVP_MD_CTX_reset(out);
+    EVP_MD_CTX_init(out);
     return EVP_MD_CTX_copy_ex(out, in);
 }
 
@@ -200,22 +315,15 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in)
         EVP_MD_CTX_set_flags(out, EVP_MD_CTX_FLAG_REUSE);
     } else
         tmp_buf = NULL;
-    EVP_MD_CTX_reset(out);
-    memcpy(out, in, sizeof(*out));
-
-    /* Null these variables, since they are getting fixed up
-     * properly below.  Anything else may cause a memleak and/or
-     * double free if any of the memory allocations below fail
-     */
-    out->md_data = NULL;
-    out->pctx = 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 == NULL) {
+            if (!out->md_data) {
                 EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, ERR_R_MALLOC_FAILURE);
                 return 0;
             }
@@ -228,7 +336,7 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in)
     if (in->pctx) {
         out->pctx = EVP_PKEY_CTX_dup(in->pctx);
         if (!out->pctx) {
-            EVP_MD_CTX_reset(out);
+            EVP_MD_CTX_cleanup(out);
             return 0;
         }
     }
@@ -243,27 +351,58 @@ 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 = EVP_MD_CTX_new();
+    EVP_MD_CTX ctx;
     int ret;
 
-    if (ctx == NULL)
-        return 0;
-    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_free(ctx);
+    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;
 }
 
-int EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int cmd, int p1, void *p2)
+void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx)
 {
-    if (ctx->digest && ctx->digest->md_ctrl) {
-        int ret = ctx->digest->md_ctrl(ctx, cmd, p1, p2);
-        if (ret <= 0)
-            return 0;
-        return 1;
+    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);
     }
-    return 0;
+#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;
 }