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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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