+++ /dev/null
-/* crypto/ecdh/ech_lib.c */
-/* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- *
- * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
- * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
- * to the OpenSSL project.
- *
- * The ECC Code is licensed pursuant to the OpenSSL open source
- * license provided below.
- *
- * The ECDH software is originally written by Douglas Stebila of
- * Sun Microsystems Laboratories.
- *
- */
-/* ====================================================================
- * Copyright (c) 1998-2003 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
- * openssl-core@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 "ech_locl.h"
-#include <string.h>
-#ifndef OPENSSL_NO_ENGINE
-#include <openssl/engine.h>
-#endif
-#include <openssl/err.h>
-#ifdef OPENSSL_FIPS
-#include <openssl/fips.h>
-#endif
-
-const char ECDH_version[]="ECDH" OPENSSL_VERSION_PTEXT;
-
-static const ECDH_METHOD *default_ECDH_method = NULL;
-
-static void *ecdh_data_new(void);
-static void *ecdh_data_dup(void *);
-static void ecdh_data_free(void *);
-
-void ECDH_set_default_method(const ECDH_METHOD *meth)
- {
- default_ECDH_method = meth;
- }
-
-const ECDH_METHOD *ECDH_get_default_method(void)
- {
- if(!default_ECDH_method)
- {
-#ifdef OPENSSL_FIPS
- if (FIPS_mode())
- return FIPS_ecdh_openssl();
- else
- return ECDH_OpenSSL();
-#else
- default_ECDH_method = ECDH_OpenSSL();
-#endif
- }
- return default_ECDH_method;
- }
-
-int ECDH_set_method(EC_KEY *eckey, const ECDH_METHOD *meth)
- {
- ECDH_DATA *ecdh;
-
- ecdh = ecdh_check(eckey);
-
- if (ecdh == NULL)
- return 0;
-
-#if 0
- mtmp = ecdh->meth;
- if (mtmp->finish)
- mtmp->finish(eckey);
-#endif
-#ifndef OPENSSL_NO_ENGINE
- if (ecdh->engine)
- {
- ENGINE_finish(ecdh->engine);
- ecdh->engine = NULL;
- }
-#endif
- ecdh->meth = meth;
-#if 0
- if (meth->init)
- meth->init(eckey);
-#endif
- return 1;
- }
-
-static ECDH_DATA *ECDH_DATA_new_method(ENGINE *engine)
- {
- ECDH_DATA *ret;
-
- ret=(ECDH_DATA *)OPENSSL_malloc(sizeof(ECDH_DATA));
- if (ret == NULL)
- {
- ECDHerr(ECDH_F_ECDH_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
- return(NULL);
- }
-
- ret->init = NULL;
-
- ret->meth = ECDH_get_default_method();
- ret->engine = engine;
-#ifndef OPENSSL_NO_ENGINE
- if (!ret->engine)
- ret->engine = ENGINE_get_default_ECDH();
- if (ret->engine)
- {
- ret->meth = ENGINE_get_ECDH(ret->engine);
- if (!ret->meth)
- {
- ECDHerr(ECDH_F_ECDH_DATA_NEW_METHOD, ERR_R_ENGINE_LIB);
- ENGINE_finish(ret->engine);
- OPENSSL_free(ret);
- return NULL;
- }
- }
-#endif
-
- ret->flags = ret->meth->flags;
- CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDH, ret, &ret->ex_data);
-#if 0
- if ((ret->meth->init != NULL) && !ret->meth->init(ret))
- {
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, ret, &ret->ex_data);
- OPENSSL_free(ret);
- ret=NULL;
- }
-#endif
- return(ret);
- }
-
-static void *ecdh_data_new(void)
- {
- return (void *)ECDH_DATA_new_method(NULL);
- }
-
-static void *ecdh_data_dup(void *data)
-{
- ECDH_DATA *r = (ECDH_DATA *)data;
-
- /* XXX: dummy operation */
- if (r == NULL)
- return NULL;
-
- return (void *)ecdh_data_new();
-}
-
-void ecdh_data_free(void *data)
- {
- ECDH_DATA *r = (ECDH_DATA *)data;
-
-#ifndef OPENSSL_NO_ENGINE
- if (r->engine)
- ENGINE_finish(r->engine);
-#endif
-
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, r, &r->ex_data);
-
- OPENSSL_cleanse((void *)r, sizeof(ECDH_DATA));
-
- OPENSSL_free(r);
- }
-
-ECDH_DATA *ecdh_check(EC_KEY *key)
- {
- ECDH_DATA *ecdh_data;
-
- void *data = EC_KEY_get_key_method_data(key, ecdh_data_dup,
- ecdh_data_free, ecdh_data_free);
- if (data == NULL)
- {
- ecdh_data = (ECDH_DATA *)ecdh_data_new();
- if (ecdh_data == NULL)
- return NULL;
- data = EC_KEY_insert_key_method_data(key, (void *)ecdh_data,
- ecdh_data_dup, ecdh_data_free, ecdh_data_free);
- if (data != NULL)
- {
- /* Another thread raced us to install the key_method
- * data and won. */
- ecdh_data_free(ecdh_data);
- ecdh_data = (ECDH_DATA *)data;
- }
- }
- else
- ecdh_data = (ECDH_DATA *)data;
-#ifdef OPENSSL_FIPS
- if (FIPS_mode() && !(ecdh_data->flags & ECDH_FLAG_FIPS_METHOD)
- && !(EC_KEY_get_flags(key) & EC_FLAG_NON_FIPS_ALLOW))
- {
- ECDHerr(ECDH_F_ECDH_CHECK, ECDH_R_NON_FIPS_METHOD);
- return NULL;
- }
-#endif
-
-
- return ecdh_data;
- }
-
-int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
- CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
- {
- return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDH, argl, argp,
- new_func, dup_func, free_func);
- }
-
-int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg)
- {
- ECDH_DATA *ecdh;
- ecdh = ecdh_check(d);
- if (ecdh == NULL)
- return 0;
- return(CRYPTO_set_ex_data(&ecdh->ex_data,idx,arg));
- }
-
-void *ECDH_get_ex_data(EC_KEY *d, int idx)
- {
- ECDH_DATA *ecdh;
- ecdh = ecdh_check(d);
- if (ecdh == NULL)
- return NULL;
- return(CRYPTO_get_ex_data(&ecdh->ex_data,idx));
- }
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