1 files changed, 434 insertions, 0 deletions
diff --git a/openssl/engines/e_nuron.c b/openssl/engines/e_nuron.c
new file mode 100644
index 000000000..4c2537cbc
--- /dev/null
+++ b/openssl/engines/e_nuron.c
@@ -0,0 +1,434 @@
+/* crypto/engine/hw_nuron.c */
+/* Written by Ben Laurie for the OpenSSL Project, leaning heavily on Geoff
+ * Thorpe's Atalla implementation.
+ */
+/* ====================================================================
+ * Copyright (c) 2000-2001 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
+ *    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 <string.h>
+#include <openssl/crypto.h>
+#include <openssl/buffer.h>
+#include <openssl/dso.h>
+#include <openssl/engine.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
+
+#ifndef OPENSSL_NO_HW
+#ifndef OPENSSL_NO_HW_NURON
+
+#define NURON_LIB_NAME "nuron engine"
+#include "e_nuron_err.c"
+
+static const char *NURON_LIBNAME = NULL;
+static const char *get_NURON_LIBNAME(void)
+	{
+	if(NURON_LIBNAME)
+		return NURON_LIBNAME;
+	return "nuronssl";
+	}
+static void free_NURON_LIBNAME(void)
+	{
+	if(NURON_LIBNAME)
+		OPENSSL_free((void*)NURON_LIBNAME);
+	NURON_LIBNAME = NULL;
+	}
+static long set_NURON_LIBNAME(const char *name)
+	{
+	free_NURON_LIBNAME();
+	return (((NURON_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
+	}
+static const char *NURON_F1 = "nuron_mod_exp";
+
+/* The definitions for control commands specific to this engine */
+#define NURON_CMD_SO_PATH		ENGINE_CMD_BASE
+static const ENGINE_CMD_DEFN nuron_cmd_defns[] = {
+	{NURON_CMD_SO_PATH,
+		"SO_PATH",
+		"Specifies the path to the 'nuronssl' shared library",
+		ENGINE_CMD_FLAG_STRING},
+	{0, NULL, NULL, 0}
+	};
+
+typedef int tfnModExp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,const BIGNUM *m);
+static tfnModExp *pfnModExp = NULL;
+
+static DSO *pvDSOHandle = NULL;
+
+static int nuron_destroy(ENGINE *e)
+	{
+	free_NURON_LIBNAME();
+	ERR_unload_NURON_strings();
+	return 1;
+	}
+
+static int nuron_init(ENGINE *e)
+	{
+	if(pvDSOHandle != NULL)
+		{
+		NURONerr(NURON_F_NURON_INIT,NURON_R_ALREADY_LOADED);
+		return 0;
+		}
+
+	pvDSOHandle = DSO_load(NULL, get_NURON_LIBNAME(), NULL,
+		DSO_FLAG_NAME_TRANSLATION_EXT_ONLY);
+	if(!pvDSOHandle)
+		{
+		NURONerr(NURON_F_NURON_INIT,NURON_R_DSO_NOT_FOUND);
+		return 0;
+		}
+
+	pfnModExp = (tfnModExp *)DSO_bind_func(pvDSOHandle, NURON_F1);
+	if(!pfnModExp)
+		{
+		NURONerr(NURON_F_NURON_INIT,NURON_R_DSO_FUNCTION_NOT_FOUND);
+		return 0;
+		}
+
+	return 1;
+	}
+
+static int nuron_finish(ENGINE *e)
+	{
+	free_NURON_LIBNAME();
+	if(pvDSOHandle == NULL)
+		{
+		NURONerr(NURON_F_NURON_FINISH,NURON_R_NOT_LOADED);
+		return 0;
+		}
+	if(!DSO_free(pvDSOHandle))
+		{
+		NURONerr(NURON_F_NURON_FINISH,NURON_R_DSO_FAILURE);
+		return 0;
+		}
+	pvDSOHandle=NULL;
+	pfnModExp=NULL;
+	return 1;
+	}
+
+static int nuron_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
+	{
+	int initialised = ((pvDSOHandle == NULL) ? 0 : 1);
+	switch(cmd)
+		{
+	case NURON_CMD_SO_PATH:
+		if(p == NULL)
+			{
+			NURONerr(NURON_F_NURON_CTRL,ERR_R_PASSED_NULL_PARAMETER);
+			return 0;
+			}
+		if(initialised)
+			{
+			NURONerr(NURON_F_NURON_CTRL,NURON_R_ALREADY_LOADED);
+			return 0;
+			}
+		return set_NURON_LIBNAME((const char *)p);
+	default:
+		break;
+		}
+	NURONerr(NURON_F_NURON_CTRL,NURON_R_CTRL_COMMAND_NOT_IMPLEMENTED);
+	return 0;
+}
+
+static int nuron_mod_exp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,
+			 const BIGNUM *m,BN_CTX *ctx)
+	{
+	if(!pvDSOHandle)
+		{
+		NURONerr(NURON_F_NURON_MOD_EXP,NURON_R_NOT_LOADED);
+		return 0;
+		}
+	return pfnModExp(r,a,p,m);
+	}
+
+#ifndef OPENSSL_NO_RSA
+static int nuron_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
+	{
+	return nuron_mod_exp(r0,I,rsa->d,rsa->n,ctx);
+	}
+#endif
+
+#ifndef OPENSSL_NO_DSA
+/* This code was liberated and adapted from the commented-out code in
+ * dsa_ossl.c. Because of the unoptimised form of the Atalla acceleration
+ * (it doesn't have a CRT form for RSA), this function means that an
+ * Atalla system running with a DSA server certificate can handshake
+ * around 5 or 6 times faster/more than an equivalent system running with
+ * RSA. Just check out the "signs" statistics from the RSA and DSA parts
+ * of "openssl speed -engine atalla dsa1024 rsa1024". */
+static int nuron_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
+			     BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
+			     BN_CTX *ctx, BN_MONT_CTX *in_mont)
+	{
+	BIGNUM t;
+	int to_return = 0;
+ 
+	BN_init(&t);
+	/* let rr = a1 ^ p1 mod m */
+	if (!nuron_mod_exp(rr,a1,p1,m,ctx))
+		goto end;
+	/* let t = a2 ^ p2 mod m */
+	if (!nuron_mod_exp(&t,a2,p2,m,ctx))
+		goto end;
+	/* let rr = rr * t mod m */
+	if (!BN_mod_mul(rr,rr,&t,m,ctx))
+		goto end;
+	to_return = 1;
+end:
+	BN_free(&t);
+	return to_return;
+	}
+
+
+static int nuron_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
+			     const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+			     BN_MONT_CTX *m_ctx)
+	{
+	return nuron_mod_exp(r, a, p, m, ctx);
+	}
+#endif
+
+/* This function is aliased to mod_exp (with the mont stuff dropped). */
+#ifndef OPENSSL_NO_RSA
+static int nuron_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+			      const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+	{
+	return nuron_mod_exp(r, a, p, m, ctx);
+	}
+#endif
+
+#ifndef OPENSSL_NO_DH
+/* This function is aliased to mod_exp (with the dh and mont dropped). */
+static int nuron_mod_exp_dh(const DH *dh, BIGNUM *r,
+		const BIGNUM *a, const BIGNUM *p,
+		const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+	{
+	return nuron_mod_exp(r, a, p, m, ctx);
+	}
+#endif
+
+#ifndef OPENSSL_NO_RSA
+static RSA_METHOD nuron_rsa =
+	{
+	"Nuron RSA method",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	nuron_rsa_mod_exp,
+	nuron_mod_exp_mont,
+	NULL,
+	NULL,
+	0,
+	NULL,
+	NULL,
+	NULL,
+	NULL
+	};
+#endif
+
+#ifndef OPENSSL_NO_DSA
+static DSA_METHOD nuron_dsa =
+	{
+	"Nuron DSA method",
+	NULL, /* dsa_do_sign */
+	NULL, /* dsa_sign_setup */
+	NULL, /* dsa_do_verify */
+	nuron_dsa_mod_exp, /* dsa_mod_exp */
+	nuron_mod_exp_dsa, /* bn_mod_exp */
+	NULL, /* init */
+	NULL, /* finish */
+	0, /* flags */
+	NULL, /* app_data */
+	NULL, /* dsa_paramgen */
+	NULL /* dsa_keygen */
+	};
+#endif
+
+#ifndef OPENSSL_NO_DH
+static DH_METHOD nuron_dh =
+	{
+	"Nuron DH method",
+	NULL,
+	NULL,
+	nuron_mod_exp_dh,
+	NULL,
+	NULL,
+	0,
+	NULL,
+	NULL
+	};
+#endif
+
+/* Constants used when creating the ENGINE */
+static const char *engine_nuron_id = "nuron";
+static const char *engine_nuron_name = "Nuron hardware engine support";
+
+/* This internal function is used by ENGINE_nuron() and possibly by the
+ * "dynamic" ENGINE support too */
+static int bind_helper(ENGINE *e)
+	{
+#ifndef OPENSSL_NO_RSA
+	const RSA_METHOD *meth1;
+#endif
+#ifndef OPENSSL_NO_DSA
+	const DSA_METHOD *meth2;
+#endif
+#ifndef OPENSSL_NO_DH
+	const DH_METHOD *meth3;
+#endif
+	if(!ENGINE_set_id(e, engine_nuron_id) ||
+			!ENGINE_set_name(e, engine_nuron_name) ||
+#ifndef OPENSSL_NO_RSA
+			!ENGINE_set_RSA(e, &nuron_rsa) ||
+#endif
+#ifndef OPENSSL_NO_DSA
+			!ENGINE_set_DSA(e, &nuron_dsa) ||
+#endif
+#ifndef OPENSSL_NO_DH
+			!ENGINE_set_DH(e, &nuron_dh) ||
+#endif
+			!ENGINE_set_destroy_function(e, nuron_destroy) ||
+			!ENGINE_set_init_function(e, nuron_init) ||
+			!ENGINE_set_finish_function(e, nuron_finish) ||
+			!ENGINE_set_ctrl_function(e, nuron_ctrl) ||
+			!ENGINE_set_cmd_defns(e, nuron_cmd_defns))
+		return 0;
+
+#ifndef OPENSSL_NO_RSA
+	/* We know that the "PKCS1_SSLeay()" functions hook properly
+	 * to the nuron-specific mod_exp and mod_exp_crt so we use
+	 * those functions. NB: We don't use ENGINE_openssl() or
+	 * anything "more generic" because something like the RSAref
+	 * code may not hook properly, and if you own one of these
+	 * cards then you have the right to do RSA operations on it
+	 * anyway! */ 
+	meth1=RSA_PKCS1_SSLeay();
+	nuron_rsa.rsa_pub_enc=meth1->rsa_pub_enc;
+	nuron_rsa.rsa_pub_dec=meth1->rsa_pub_dec;
+	nuron_rsa.rsa_priv_enc=meth1->rsa_priv_enc;
+	nuron_rsa.rsa_priv_dec=meth1->rsa_priv_dec;
+#endif
+
+#ifndef OPENSSL_NO_DSA
+	/* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
+	 * bits. */
+	meth2=DSA_OpenSSL();
+	nuron_dsa.dsa_do_sign=meth2->dsa_do_sign;
+	nuron_dsa.dsa_sign_setup=meth2->dsa_sign_setup;
+	nuron_dsa.dsa_do_verify=meth2->dsa_do_verify;
+#endif
+
+#ifndef OPENSSL_NO_DH
+	/* Much the same for Diffie-Hellman */
+	meth3=DH_OpenSSL();
+	nuron_dh.generate_key=meth3->generate_key;
+	nuron_dh.compute_key=meth3->compute_key;
+#endif
+
+	/* Ensure the nuron error handling is set up */
+	ERR_load_NURON_strings();
+	return 1;
+	}
+
+#ifdef OPENSSL_NO_DYNAMIC_ENGINE
+static ENGINE *engine_nuron(void)
+	{
+	ENGINE *ret = ENGINE_new();
+	if(!ret)
+		return NULL;
+	if(!bind_helper(ret))
+		{
+		ENGINE_free(ret);
+		return NULL;
+		}
+	return ret;
+	}
+
+void ENGINE_load_nuron(void)
+	{
+	/* Copied from eng_[openssl|dyn].c */
+	ENGINE *toadd = engine_nuron();
+	if(!toadd) return;
+	ENGINE_add(toadd);
+	ENGINE_free(toadd);
+	ERR_clear_error();
+	}
+#endif
+
+/* This stuff is needed if this ENGINE is being compiled into a self-contained
+ * shared-library. */	   
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+static int bind_fn(ENGINE *e, const char *id)
+	{
+	if(id && (strcmp(id, engine_nuron_id) != 0))
+		return 0;
+	if(!bind_helper(e))
+		return 0;
+	return 1;
+	}       
+IMPLEMENT_DYNAMIC_CHECK_FN()
+IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
+#endif /* OPENSSL_NO_DYNAMIC_ENGINE */
+
+#endif /* !OPENSSL_NO_HW_NURON */
+#endif /* !OPENSSL_NO_HW */