Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/dh/dh_check.c

Index: openssl/crypto/dh/dh_check.c
diff --git a/openssl/crypto/dh/dh_check.c b/openssl/crypto/dh/dh_check.c
deleted file mode 100644
index 066898174e39e2a117369b65db6bfd21c9974d49..0000000000000000000000000000000000000000
--- a/openssl/crypto/dh/dh_check.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* crypto/dh/dh_check.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.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/bn.h>
-#include <openssl/dh.h>
-
-/* Check that p is a safe prime and
- * if g is 2, 3 or 5, check that it is a suitable generator
- * where
- * for 2, p mod 24 == 11
- * for 3, p mod 12 == 5
- * for 5, p mod 10 == 3 or 7
- * should hold.
- */
-
-int DH_check(const DH *dh, int *ret)
-	{
-	int ok=0;
-	BN_CTX *ctx=NULL;
-	BN_ULONG l;
-	BIGNUM *q=NULL;
-
-	*ret=0;
-	ctx=BN_CTX_new();
-	if (ctx == NULL) goto err;
-	q=BN_new();
-	if (q == NULL) goto err;
-
-	if (BN_is_word(dh->g,DH_GENERATOR_2))
-		{
-		l=BN_mod_word(dh->p,24);
-		if (l != 11) *ret|=DH_NOT_SUITABLE_GENERATOR;
-		}
-#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 != 3) && (l != 7))
-			*ret|=DH_NOT_SUITABLE_GENERATOR;
-		}
-	else
-		*ret|=DH_UNABLE_TO_CHECK_GENERATOR;
-
-	if (!BN_is_prime_ex(dh->p,BN_prime_checks,ctx,NULL))
-		*ret|=DH_CHECK_P_NOT_PRIME;
-	else
-		{
-		if (!BN_rshift1(q,dh->p)) goto err;
-		if (!BN_is_prime_ex(q,BN_prime_checks,ctx,NULL))
-			*ret|=DH_CHECK_P_NOT_SAFE_PRIME;
-		}
-	ok=1;
-err:
-	if (ctx != NULL) BN_CTX_free(ctx);
-	if (q != NULL) BN_free(q);
-	return(ok);
-	}
-
-int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)
-	{
-	int ok=0;
-	BIGNUM *q=NULL;
-
-	*ret=0;
-	q=BN_new();
-	if (q == NULL) goto err;
-	BN_set_word(q,1);
-	if (BN_cmp(pub_key,q)<=0)
-		*ret|=DH_CHECK_PUBKEY_TOO_SMALL;
-	BN_copy(q,dh->p);
-	BN_sub_word(q,1);
-	if (BN_cmp(pub_key,q)>=0)
-		*ret|=DH_CHECK_PUBKEY_TOO_LARGE;
-
-	ok = 1;
-err:
-	if (q != NULL) BN_free(q);
-	return(ok);
-	}