[thirdparty/openssl.git] / crypto / engine / hw_nuron.c

/* crypto/engine/hw_nuron.c */
/* Written by Ben Laurie for the OpenSSL Project, leaning heavily on Geoff
 * Thorpe's Atalla implementation.
 */
/* ====================================================================
 * Copyright (c) 2000 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/dso.h>
#include "engine_int.h"
#include <openssl/engine.h>


#ifndef NO_HW
#ifndef NO_HW_NURON

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_init()
	{
	if(pvDSOHandle != NULL)
		{
		ENGINEerr(ENGINE_F_NURON_INIT,ENGINE_R_ALREADY_LOADED);
		return 0;
		}

	pvDSOHandle=DSO_load(NULL,"nuronssl",NULL,
		DSO_FLAG_NAME_TRANSLATION_EXT_ONLY);
	if(!pvDSOHandle)
		{
		ENGINEerr(ENGINE_F_NURON_INIT,ENGINE_R_DSO_NOT_FOUND);
		return 0;
		}

	pfnModExp=(tfnModExp *)DSO_bind_func(pvDSOHandle,"nuron_mod_exp");
	if(!pfnModExp)
		{
		ENGINEerr(ENGINE_F_NURON_INIT,ENGINE_R_DSO_FUNCTION_NOT_FOUND);
		return 0;
		}

	return 1;
	}

static int nuron_finish()
	{
	if(pvDSOHandle == NULL)
		{
		ENGINEerr(ENGINE_F_NURON_FINISH,ENGINE_R_NOT_LOADED);
		return 0;
		}
	if(!DSO_free(pvDSOHandle))
		{
		ENGINEerr(ENGINE_F_NURON_FINISH,ENGINE_R_DSO_FAILURE);
		return 0;
		}
	pvDSOHandle=NULL;
	pfnModExp=NULL;
	return 1;
	}

static int nuron_mod_exp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,
			 const BIGNUM *m,BN_CTX *ctx)
	{
	if(!pvDSOHandle)
		{
		ENGINEerr(ENGINE_F_NURON_MOD_EXP,ENGINE_R_NOT_LOADED);
		return 0;
		}
	return pfnModExp(r,a,p,m);
	}

static int nuron_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
	{
	return nuron_mod_exp(r0,I,rsa->d,rsa->n,NULL);
	}

/* 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);
	}

/* This function is aliased to mod_exp (with the mont stuff dropped). */
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);
	}

/* 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);
	}

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
	};

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 */
	};

static DH_METHOD nuron_dh =
	{
	"Nuron DH method",
	NULL,
	NULL,
	nuron_mod_exp_dh,
	NULL,
	NULL,
	0,
	NULL
	};

static ENGINE engine_nuron =
	{
	"nuron",
	"Nuron hardware engine support",
	&nuron_rsa,
	&nuron_dsa,
	&nuron_dh,
	NULL,
	nuron_mod_exp,
	NULL,
	nuron_init,
	nuron_finish,
	NULL, /* no ctrl() */
	NULL, /* no load_privkey() */
	NULL, /* no load_pubkey() */
	0, /* no flags */
	0, 0, /* no references */
	NULL, NULL /* unlinked */
	};

/* 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_nuron()
	{
	const RSA_METHOD *meth1;
	const DSA_METHOD *meth2;
	const DH_METHOD *meth3;

	/* 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;

	/* 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;

	/* Much the same for Diffie-Hellman */
	meth3=DH_OpenSSL();
	nuron_dh.generate_key=meth3->generate_key;
	nuron_dh.compute_key=meth3->compute_key;
	return &engine_nuron;
	}

#endif /* !NO_HW_NURON */
#endif /* !NO_HW */
Commit	Line	Data
5270e702 RL	1	/* crypto/engine/hw_nuron.c */
	2	/* Written by Ben Laurie for the OpenSSL Project, leaning heavily on Geoff
	3	* Thorpe's Atalla implementation.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58
	59	#include <stdio.h>
	60	#include <openssl/crypto.h>
	61	#include "cryptlib.h"
	62	#include <openssl/dso.h>
	63	#include "engine_int.h"
	64	#include <openssl/engine.h>
5270e702 RL	65
	66
	67	#ifndef NO_HW
	68	#ifndef NO_HW_NURON
	69
10e473e9	70	typedef int tfnModExp(BIGNUM r,const BIGNUM a,const BIGNUM p,const BIGNUM m);
5270e702 RL	71	static tfnModExp *pfnModExp = NULL;
	72
	73	static DSO *pvDSOHandle = NULL;
	74
	75	static int nuron_init()
	76	{
	77	if(pvDSOHandle != NULL)
	78	{
	79	ENGINEerr(ENGINE_F_NURON_INIT,ENGINE_R_ALREADY_LOADED);
	80	return 0;
	81	}
	82
	83	pvDSOHandle=DSO_load(NULL,"nuronssl",NULL,
	84	DSO_FLAG_NAME_TRANSLATION_EXT_ONLY);
	85	if(!pvDSOHandle)
	86	{
	87	ENGINEerr(ENGINE_F_NURON_INIT,ENGINE_R_DSO_NOT_FOUND);
	88	return 0;
	89	}
	90
	91	pfnModExp=(tfnModExp *)DSO_bind_func(pvDSOHandle,"nuron_mod_exp");
	92	if(!pfnModExp)
	93	{
	94	ENGINEerr(ENGINE_F_NURON_INIT,ENGINE_R_DSO_FUNCTION_NOT_FOUND);
	95	return 0;
	96	}
	97
	98	return 1;
	99	}
	100
	101	static int nuron_finish()
	102	{
	103	if(pvDSOHandle == NULL)
	104	{
	105	ENGINEerr(ENGINE_F_NURON_FINISH,ENGINE_R_NOT_LOADED);
	106	return 0;
	107	}
	108	if(!DSO_free(pvDSOHandle))
	109	{
	110	ENGINEerr(ENGINE_F_NURON_FINISH,ENGINE_R_DSO_FAILURE);
	111	return 0;
	112	}
	113	pvDSOHandle=NULL;
	114	pfnModExp=NULL;
	115	return 1;
	116	}
	117
10e473e9	118	static int nuron_mod_exp(BIGNUM r,const BIGNUM a,const BIGNUM *p,
5270e702 RL	119	const BIGNUM m,BN_CTX ctx)
	120	{
	121	if(!pvDSOHandle)
	122	{
	123	ENGINEerr(ENGINE_F_NURON_MOD_EXP,ENGINE_R_NOT_LOADED);
	124	return 0;
	125	}
	126	return pfnModExp(r,a,p,m);
	127	}
	128
10e473e9	129	static int nuron_rsa_mod_exp(BIGNUM r0, const BIGNUM I, RSA *rsa)
5270e702 RL	130	{
	131	return nuron_mod_exp(r0,I,rsa->d,rsa->n,NULL);
	132	}
	133
	134	/* This code was liberated and adapted from the commented-out code in
	135	* dsa_ossl.c. Because of the unoptimised form of the Atalla acceleration
	136	* (it doesn't have a CRT form for RSA), this function means that an
	137	* Atalla system running with a DSA server certificate can handshake
	138	* around 5 or 6 times faster/more than an equivalent system running with
	139	* RSA. Just check out the "signs" statistics from the RSA and DSA parts
	140	* of "openssl speed -engine atalla dsa1024 rsa1024". */
	141	static int nuron_dsa_mod_exp(DSA dsa, BIGNUM rr, BIGNUM *a1,
	142	BIGNUM p1, BIGNUM a2, BIGNUM p2, BIGNUM m,
	143	BN_CTX ctx, BN_MONT_CTX in_mont)
	144	{
	145	BIGNUM t;
	146	int to_return = 0;
	147
	148	BN_init(&t);
	149	/* let rr = a1 ^ p1 mod m */
	150	if (!nuron_mod_exp(rr,a1,p1,m,ctx))
	151	goto end;
	152	/* let t = a2 ^ p2 mod m */
	153	if (!nuron_mod_exp(&t,a2,p2,m,ctx))
	154	goto end;
	155	/* let rr = rr * t mod m */
	156	if (!BN_mod_mul(rr,rr,&t,m,ctx))
	157	goto end;
	158	to_return = 1;
	159	end:
	160	BN_free(&t);
	161	return to_return;
	162	}
	163
	164
	165	static int nuron_mod_exp_dsa(DSA dsa, BIGNUM r, BIGNUM *a,
	166	const BIGNUM p, const BIGNUM m, BN_CTX *ctx,
	167	BN_MONT_CTX *m_ctx)
	168	{
	169	return nuron_mod_exp(r, a, p, m, ctx);
	170	}
	171
	172	/* This function is aliased to mod_exp (with the mont stuff dropped). */
10e473e9	173	static int nuron_mod_exp_mont(BIGNUM r, const BIGNUM a, const BIGNUM *p,
5270e702 RL	174	const BIGNUM m, BN_CTX ctx, BN_MONT_CTX *m_ctx)
	175	{
	176	return nuron_mod_exp(r, a, p, m, ctx);
	177	}
	178
	179	/* This function is aliased to mod_exp (with the dh and mont dropped). */
f971ccb2 RL	180	static int nuron_mod_exp_dh(const DH dh, BIGNUM r,
	181	const BIGNUM a, const BIGNUM p,
	182	const BIGNUM m, BN_CTX ctx, BN_MONT_CTX *m_ctx)
5270e702 RL	183	{
	184	return nuron_mod_exp(r, a, p, m, ctx);
	185	}
	186
	187	static RSA_METHOD nuron_rsa =
	188	{
	189	"Nuron RSA method",
	190	NULL,
	191	NULL,
	192	NULL,
	193	NULL,
	194	nuron_rsa_mod_exp,
	195	nuron_mod_exp_mont,
	196	NULL,
	197	NULL,
	198	0,
	199	NULL,
	200	NULL,
	201	NULL
	202	};
	203
	204	static DSA_METHOD nuron_dsa =
	205	{
	206	"Nuron DSA method",
	207	NULL, /* dsa_do_sign */
	208	NULL, /* dsa_sign_setup */
	209	NULL, /* dsa_do_verify */
	210	nuron_dsa_mod_exp, /* dsa_mod_exp */
	211	nuron_mod_exp_dsa, /* bn_mod_exp */
	212	NULL, /* init */
	213	NULL, /* finish */
	214	0, /* flags */
	215	NULL /* app_data */
	216	};
	217
	218	static DH_METHOD nuron_dh =
	219	{
	220	"Nuron DH method",
	221	NULL,
	222	NULL,
	223	nuron_mod_exp_dh,
	224	NULL,
	225	NULL,
	226	0,
	227	NULL
	228	};
	229
	230	static ENGINE engine_nuron =
	231	{
	232	"nuron",
	233	"Nuron hardware engine support",
	234	&nuron_rsa,
	235	&nuron_dsa,
	236	&nuron_dh,
	237	NULL,
	238	nuron_mod_exp,
	239	NULL,
	240	nuron_init,
	241	nuron_finish,
	242	NULL, /* no ctrl() */
	243	NULL, /* no load_privkey() */
	244	NULL, /* no load_pubkey() */
	245	0, /* no flags */
	246	0, 0, /* no references */
247	NULL, NULL /* unlinked */
248	};
249
250	/* As this is only ever called once, there's no need for locking
251	* (indeed - the lock will already be held by our caller!!!) */
252	ENGINE *ENGINE_nuron()
253	{
a4aba800 RL	254	const RSA_METHOD *meth1;
a4aba800 RL	255	const DSA_METHOD *meth2;
f971ccb2	256	const DH_METHOD *meth3;
5270e702 RL	257
	258	/* We know that the "PKCS1_SSLeay()" functions hook properly
	259	* to the nuron-specific mod_exp and mod_exp_crt so we use
	260	* those functions. NB: We don't use ENGINE_openssl() or
	261	* anything "more generic" because something like the RSAref
	262	* code may not hook properly, and if you own one of these
	263	* cards then you have the right to do RSA operations on it
	264	* anyway! */
	265	meth1=RSA_PKCS1_SSLeay();
	266	nuron_rsa.rsa_pub_enc=meth1->rsa_pub_enc;
	267	nuron_rsa.rsa_pub_dec=meth1->rsa_pub_dec;
	268	nuron_rsa.rsa_priv_enc=meth1->rsa_priv_enc;
	269	nuron_rsa.rsa_priv_dec=meth1->rsa_priv_dec;
	270
	271	/* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
	272	* bits. */
	273	meth2=DSA_OpenSSL();
	274	nuron_dsa.dsa_do_sign=meth2->dsa_do_sign;
	275	nuron_dsa.dsa_sign_setup=meth2->dsa_sign_setup;
	276	nuron_dsa.dsa_do_verify=meth2->dsa_do_verify;
	277
	278	/* Much the same for Diffie-Hellman */
	279	meth3=DH_OpenSSL();
	280	nuron_dh.generate_key=meth3->generate_key;
	281	nuron_dh.compute_key=meth3->compute_key;
	282	return &engine_nuron;
	283	}
	284
	285	#endif /* !NO_HW_NURON */
	286	#endif /* !NO_HW */