1 files changed, 70 insertions, 66 deletions

diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_check.c b/Cryptlib/OpenSSL/crypto/dh/dh_check.c
index 3b0fa590..02770411 100644
--- a/Cryptlib/OpenSSL/crypto/dh/dh_check.c
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_check.c
@@ -1,56 +1,65 @@
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+/* crypto/dh/dh_check.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * 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
+ * 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.]
  */
 
 #include <stdio.h>
-#include "internal/cryptlib.h"
+#include "cryptlib.h"
 #include <openssl/bn.h>
-#include "dh_locl.h"
-
-/*-
- * Check that p and g are suitable enough
- *
- * p is odd
- * 1 < g < p - 1
- */
-
-int DH_check_params(const DH *dh, int *ret)
-{
-    int ok = 0;
-    BIGNUM *tmp = NULL;
-    BN_CTX *ctx = NULL;
-
-    *ret = 0;
-    ctx = BN_CTX_new();
-    if (ctx == NULL)
-        goto err;
-    BN_CTX_start(ctx);
-    tmp = BN_CTX_get(ctx);
-    if (tmp == NULL)
-        goto err;
-
-    if (!BN_is_odd(dh->p))
-        *ret |= DH_CHECK_P_NOT_PRIME;
-    if (BN_is_negative(dh->g) || BN_is_zero(dh->g) || BN_is_one(dh->g))
-        *ret |= DH_NOT_SUITABLE_GENERATOR;
-    if (BN_copy(tmp, dh->p) == NULL || !BN_sub_word(tmp, 1))
-        goto err;
-    if (BN_cmp(dh->g, tmp) >= 0)
-        *ret |= DH_NOT_SUITABLE_GENERATOR;
-
-    ok = 1;
- err:
-    if (ctx != NULL) {
-        BN_CTX_end(ctx);
-        BN_CTX_free(ctx);
-    }
-    return (ok);
-}
+#include <openssl/dh.h>
 
 /*-
  * Check that p is a safe prime and
@@ -64,7 +73,7 @@ int DH_check_params(const DH *dh, int *ret)
 
 int DH_check(const DH *dh, int *ret)
 {
-    int ok = 0, r;
+    int ok = 0;
     BN_CTX *ctx = NULL;
     BN_ULONG l;
     BIGNUM *t1 = NULL, *t2 = NULL;
@@ -93,10 +102,7 @@ int DH_check(const DH *dh, int *ret)
             if (!BN_is_one(t1))
                 *ret |= DH_NOT_SUITABLE_GENERATOR;
         }
-        r = BN_is_prime_ex(dh->q, BN_prime_checks, ctx, NULL);
-        if (r < 0)
-            goto err;
-        if (!r)
+        if (!BN_is_prime_ex(dh->q, BN_prime_checks, ctx, NULL))
             *ret |= DH_CHECK_Q_NOT_PRIME;
         /* Check p == 1 mod q  i.e. q divides p - 1 */
         if (!BN_div(t1, t2, dh->p, dh->q, ctx))
@@ -108,31 +114,29 @@ int DH_check(const DH *dh, int *ret)
 
     } else if (BN_is_word(dh->g, DH_GENERATOR_2)) {
         l = BN_mod_word(dh->p, 24);
-        if (l == (BN_ULONG)-1)
-            goto err;
         if (l != 11)
             *ret |= DH_NOT_SUITABLE_GENERATOR;
-    } else if (BN_is_word(dh->g, DH_GENERATOR_5)) {
+    }
+#if 0
+    else if (BN_is_word(dh->g, DH_GENERATOR_3)) {
+        l = BN_mod_word(dh->p, 12);
+        if (l != 5)
+            *ret |= DH_NOT_SUITABLE_GENERATOR;
+    }
+#endif
+    else if (BN_is_word(dh->g, DH_GENERATOR_5)) {
         l = BN_mod_word(dh->p, 10);
-        if (l == (BN_ULONG)-1)
-            goto err;
         if ((l != 3) && (l != 7))
             *ret |= DH_NOT_SUITABLE_GENERATOR;
     } else
         *ret |= DH_UNABLE_TO_CHECK_GENERATOR;
 
-    r = BN_is_prime_ex(dh->p, BN_prime_checks, ctx, NULL);
-    if (r < 0)
-        goto err;
-    if (!r)
+    if (!BN_is_prime_ex(dh->p, BN_prime_checks, ctx, NULL))
         *ret |= DH_CHECK_P_NOT_PRIME;
     else if (!dh->q) {
         if (!BN_rshift1(t1, dh->p))
             goto err;
-        r = BN_is_prime_ex(t1, BN_prime_checks, ctx, NULL);
-        if (r < 0)
-            goto err;
-	if (!r)
+        if (!BN_is_prime_ex(t1, BN_prime_checks, ctx, NULL))
             *ret |= DH_CHECK_P_NOT_SAFE_PRIME;
     }
     ok = 1;