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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2000. */
/* ====================================================================
* Copyright (c) 2000-2005 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 <openssl/dsa.h>
#include <string.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include "internal.h"
static int dsa_sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg) {
if (operation != ASN1_OP_NEW_PRE) {
return 1;
}
DSA_SIG *sig;
sig = OPENSSL_malloc(sizeof(DSA_SIG));
if (!sig) {
OPENSSL_PUT_ERROR(DSA, dsa_sig_cb, ERR_R_MALLOC_FAILURE);
return 0;
}
memset(sig, 0, sizeof(DSA_SIG));
*pval = (ASN1_VALUE *)sig;
return 2;
}
ASN1_SEQUENCE_cb(DSA_SIG, dsa_sig_cb) = {
ASN1_SIMPLE(DSA_SIG, r, CBIGNUM),
ASN1_SIMPLE(DSA_SIG, s, CBIGNUM)} ASN1_SEQUENCE_END_cb(DSA_SIG, DSA_SIG);
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA_SIG, DSA_SIG, DSA_SIG);
static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg) {
switch (operation) {
case ASN1_OP_NEW_PRE:
*pval = (ASN1_VALUE *)DSA_new();
if (*pval) {
return 2;
}
return 0;
case ASN1_OP_FREE_PRE:
DSA_free((DSA *)*pval);
*pval = NULL;
return 2;
default:
return 1;
}
}
ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {
ASN1_SIMPLE(DSA, version, LONG),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM),
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_SIMPLE(DSA, priv_key, BIGNUM)} ASN1_SEQUENCE_END_cb(DSA,
DSAPrivateKey);
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPrivateKey, DSAPrivateKey);
ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {
ASN1_SIMPLE(DSA, p, BIGNUM), ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM), } ASN1_SEQUENCE_END_cb(DSA, DSAparams);
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAparams, DSAparams);
/* DSA public key is a bit trickier... its effectively a CHOICE type decided by
* a field called write_params which can either write out just the public key
* as an INTEGER or the parameters and public key in a SEQUENCE. */
ASN1_SEQUENCE(dsa_pub_internal) = {
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM)
} ASN1_SEQUENCE_END_name(DSA, dsa_pub_internal);
ASN1_CHOICE_cb(DSAPublicKey, dsa_cb) = {
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_EX_COMBINE(0, 0, dsa_pub_internal)
} ASN1_CHOICE_END_cb(DSA, DSAPublicKey, write_params);
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPublicKey, DSAPublicKey);
DSA *DSAparams_dup(const DSA *dsa) {
return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), (DSA*) dsa);
}
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