+++ /dev/null
-/* 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 */
projects / cassiopeia.git / blobdiff