169 lines
4.7 KiB
C
Executable file
169 lines
4.7 KiB
C
Executable file
/* $OpenBSD: dh_asn1.c,v 1.11 2022/01/07 09:27:13 tb Exp $ */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 2000-2005 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 <openssl/asn1t.h>
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#include <openssl/bn.h>
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#include <openssl/dh.h>
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#include <openssl/objects.h>
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#include "dh_local.h"
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/* Override the default free and new methods */
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static int
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dh_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
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{
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if (operation == ASN1_OP_NEW_PRE) {
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*pval = (ASN1_VALUE *)DH_new();
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if (*pval)
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return 2;
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return 0;
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} else if (operation == ASN1_OP_FREE_PRE) {
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DH_free((DH *)*pval);
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*pval = NULL;
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return 2;
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}
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return 1;
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}
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static const ASN1_AUX DHparams_aux = {
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.app_data = NULL,
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.flags = 0,
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.ref_offset = 0,
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.ref_lock = 0,
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.asn1_cb = dh_cb,
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.enc_offset = 0,
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};
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static const ASN1_TEMPLATE DHparams_seq_tt[] = {
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{
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.flags = 0,
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.tag = 0,
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.offset = offsetof(DH, p),
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.field_name = "p",
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.item = &BIGNUM_it,
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},
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{
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.flags = 0,
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.tag = 0,
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.offset = offsetof(DH, g),
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.field_name = "g",
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.item = &BIGNUM_it,
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},
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{
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.flags = ASN1_TFLG_OPTIONAL,
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.tag = 0,
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.offset = offsetof(DH, length),
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.field_name = "length",
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.item = &ZLONG_it,
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},
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};
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const ASN1_ITEM DHparams_it = {
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.itype = ASN1_ITYPE_SEQUENCE,
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.utype = V_ASN1_SEQUENCE,
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.templates = DHparams_seq_tt,
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.tcount = sizeof(DHparams_seq_tt) / sizeof(ASN1_TEMPLATE),
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.funcs = &DHparams_aux,
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.size = sizeof(DH),
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.sname = "DH",
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};
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DH *
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d2i_DHparams(DH **a, const unsigned char **in, long len)
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{
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return (DH *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
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&DHparams_it);
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}
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int
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i2d_DHparams(const DH *a, unsigned char **out)
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{
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return ASN1_item_i2d((ASN1_VALUE *)a, out, &DHparams_it);
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}
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DH *
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d2i_DHparams_bio(BIO *bp, DH **a)
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{
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return ASN1_item_d2i_bio(&DHparams_it, bp, a);
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}
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int
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i2d_DHparams_bio(BIO *bp, DH *a)
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{
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return ASN1_item_i2d_bio(&DHparams_it, bp, a);
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}
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DH *
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d2i_DHparams_fp(FILE *fp, DH **a)
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{
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return ASN1_item_d2i_fp(&DHparams_it, fp, a);
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}
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int
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i2d_DHparams_fp(FILE *fp, DH *a)
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{
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return ASN1_item_i2d_fp(&DHparams_it, fp, a);
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}
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DH *
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DHparams_dup(DH *dh)
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{
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return ASN1_item_dup(&DHparams_it, dh);
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}
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