448be74335
key ASN1 handling through a single EVP_PKEY_ASN1_METHOD structure and move the spaghetti algorithm specific code to a single ASN1 module for each algorithm.
113 lines
4 KiB
C
113 lines
4 KiB
C
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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* project 2006.
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*/
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/* ====================================================================
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* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/asn1t.h>
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#include <openssl/x509.h>
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#include <openssl/ec.h>
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#include "asn1_locl.h"
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extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[];
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extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[];
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extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
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/* Keep this sorted in type order !! */
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const EVP_PKEY_ASN1_METHOD *standard_methods[] =
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{
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&rsa_asn1_meths[0],
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&rsa_asn1_meths[1],
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&dsa_asn1_meths[0],
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&dsa_asn1_meths[1],
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&dsa_asn1_meths[2],
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&dsa_asn1_meths[3],
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&dsa_asn1_meths[4],
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&eckey_asn1_meth
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};
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#ifdef TEST
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void main()
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{
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int i;
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for (i = 0;
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i < sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
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i++)
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fprintf(stderr, "Number %d id=%d\n", i,
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standard_methods[i]->pkey_id);
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}
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#endif
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static int ameth_cmp(const EVP_PKEY_ASN1_METHOD * const *a,
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const EVP_PKEY_ASN1_METHOD * const *b)
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{
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return ((*a)->pkey_id - (*b)->pkey_id);
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}
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const EVP_PKEY_ASN1_METHOD *EVP_PKEY_ASN1_find(int type)
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{
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EVP_PKEY_ASN1_METHOD tmp, *t = &tmp, **ret;
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tmp.pkey_id = type;
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ret = (EVP_PKEY_ASN1_METHOD **) OBJ_bsearch((char *)&t,
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(char *)standard_methods,
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sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *),
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sizeof(EVP_PKEY_ASN1_METHOD *),
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(int (*)(const void *, const void *))ameth_cmp);
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if ((*ret)->pkey_flags & ASN1_PKEY_ALIAS)
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return EVP_PKEY_ASN1_find((*ret)->pkey_base_id);
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return *ret;
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}
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