make engine file names unique in 8.3

1 files changed, 165 insertions, 0 deletions

diff --git a/crypto/engine/eng_openssl.c b/crypto/engine/eng_openssl.c
new file mode 100644
index 0000000000..c353df97d6
--- /dev/null
+++ b/crypto/engine/eng_openssl.c
@@ -0,0 +1,165 @@
+/* crypto/engine/engine_openssl.c */
+/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 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
+ *    licensing@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 <openssl/crypto.h>
+#include "cryptlib.h"
+#include <openssl/engine.h>
+#include <openssl/dso.h>
+
+/* This is the only function we need to implement as OpenSSL
+ * doesn't have a native CRT mod_exp. Perhaps this should be
+ * BN_mod_exp_crt and moved into crypto/bn/ ?? ... dunno. */
+static int openssl_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+		const BIGNUM *q, const BIGNUM *dmp1, const BIGNUM *dmq1,
+		const BIGNUM *iqmp, BN_CTX *ctx);
+
+/* The constants used when creating the ENGINE */
+static const char *engine_openssl_id = "openssl";
+static const char *engine_openssl_name = "Software default engine support";
+
+/* As this is only ever called once, there's no need for locking
+ * (indeed - the lock will already be held by our caller!!!) */
+ENGINE *ENGINE_openssl(void)
+	{
+	ENGINE *ret = ENGINE_new();
+	if(!ret)
+		return NULL;
+	if(!ENGINE_set_id(ret, engine_openssl_id) ||
+			!ENGINE_set_name(ret, engine_openssl_name) ||
+#ifndef OPENSSL_NO_RSA
+			!ENGINE_set_RSA(ret, RSA_get_default_openssl_method()) ||
+#endif
+#ifndef OPENSSL_NO_DSA
+			!ENGINE_set_DSA(ret, DSA_get_default_openssl_method()) ||
+#endif
+#ifndef OPENSSL_NO_DH
+			!ENGINE_set_DH(ret, DH_get_default_openssl_method()) ||
+#endif
+			!ENGINE_set_RAND(ret, RAND_SSLeay()) ||
+			!ENGINE_set_BN_mod_exp(ret, BN_mod_exp) ||
+			!ENGINE_set_BN_mod_exp_crt(ret, openssl_mod_exp_crt))
+		{
+		ENGINE_free(ret);
+		return NULL;
+		}
+	return ret;
+	}
+
+/* Chinese Remainder Theorem, taken and adapted from rsa_eay.c */
+static int openssl_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+			const BIGNUM *q, const BIGNUM *dmp1,
+			const BIGNUM *dmq1, const BIGNUM *iqmp, BN_CTX *ctx)
+	{
+	BIGNUM r1,m1;
+	int ret=0;
+	BN_CTX *bn_ctx;
+	BIGNUM *temp_bn = NULL;
+
+	if (ctx)
+		bn_ctx = ctx;
+	else
+		if ((bn_ctx=BN_CTX_new()) == NULL) goto err;
+	BN_init(&m1);
+	BN_init(&r1);
+	/* BN_mul() cannot accept const BIGNUMs so I use the BN_CTX
+	 * to duplicate what I need. <sigh> */
+	BN_CTX_start(bn_ctx);
+	if ((temp_bn = BN_CTX_get(bn_ctx)) == NULL) goto err;
+	if (!BN_copy(temp_bn, iqmp)) goto err;
+ 
+	if (!BN_mod(&r1, a, q, bn_ctx)) goto err;
+	if (!BN_mod_exp(&m1, &r1, dmq1, q, bn_ctx))
+		goto err;
+ 
+	if (!BN_mod(&r1, a, p, bn_ctx)) goto err;
+	if (!BN_mod_exp(r, &r1, dmp1, p, bn_ctx))
+		goto err;
+
+	if (!BN_sub(r, r, &m1)) goto err;
+	/* This will help stop the size of r0 increasing, which does
+	 * affect the multiply if it optimised for a power of 2 size */
+	if (r->neg)
+		if (!BN_add(r, r, p)) goto err;
+ 
+	if (!BN_mul(&r1, r, temp_bn, bn_ctx)) goto err;
+	if (!BN_mod(r, &r1, p, bn_ctx)) goto err;
+	/* If p < q it is occasionally possible for the correction of
+	 * adding 'p' if r is negative above to leave the result still
+	 * negative. This can break the private key operations: the following
+	 * second correction should *always* correct this rare occurrence.
+	 * This will *never* happen with OpenSSL generated keys because
+	 * they ensure p > q [steve]
+	 */
+	if (r->neg)
+		if (!BN_add(r, r, p)) goto err;
+	/* Again, BN_mul() will need non-const values. */
+	if (!BN_copy(temp_bn, q)) goto err;
+	if (!BN_mul(&r1, r, temp_bn, bn_ctx)) goto err;
+	if (!BN_add(r, &r1, &m1)) goto err;
+ 
+	ret=1;
+err:
+	BN_clear_free(&m1);
+	BN_clear_free(&r1);
+	BN_CTX_end(ctx);
+	if (!ctx)
+		BN_CTX_free(bn_ctx);
+	return(ret);
+	}