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138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
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/* $OpenBSD: ecs_asn1.c,v 1.9 2018/03/17 15:24:44 tb Exp $ */
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/* ====================================================================
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* Copyright (c) 2000-2002 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 "ecs_locl.h"
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#include <openssl/err.h>
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#include <openssl/asn1t.h>
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static const ASN1_TEMPLATE ECDSA_SIG_seq_tt[] = {
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{
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.flags = 0,
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.tag = 0,
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.offset = offsetof(ECDSA_SIG, r),
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.field_name = "r",
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.item = &CBIGNUM_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(ECDSA_SIG, s),
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.field_name = "s",
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.item = &CBIGNUM_it,
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},
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};
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const ASN1_ITEM ECDSA_SIG_it = {
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.itype = ASN1_ITYPE_SEQUENCE,
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.utype = V_ASN1_SEQUENCE,
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.templates = ECDSA_SIG_seq_tt,
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.tcount = sizeof(ECDSA_SIG_seq_tt) / sizeof(ASN1_TEMPLATE),
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.funcs = NULL,
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.size = sizeof(ECDSA_SIG),
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.sname = "ECDSA_SIG",
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};
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ECDSA_SIG *ECDSA_SIG_new(void);
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void ECDSA_SIG_free(ECDSA_SIG *a);
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ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **a, const unsigned char **in, long len);
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int i2d_ECDSA_SIG(const ECDSA_SIG *a, unsigned char **out);
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ECDSA_SIG *
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d2i_ECDSA_SIG(ECDSA_SIG **a, const unsigned char **in, long len)
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{
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return (ECDSA_SIG *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
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&ECDSA_SIG_it);
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}
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int
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i2d_ECDSA_SIG(const ECDSA_SIG *a, unsigned char **out)
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{
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return ASN1_item_i2d((ASN1_VALUE *)a, out, &ECDSA_SIG_it);
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}
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ECDSA_SIG *
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ECDSA_SIG_new(void)
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{
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return (ECDSA_SIG *)ASN1_item_new(&ECDSA_SIG_it);
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}
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void
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ECDSA_SIG_free(ECDSA_SIG *a)
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{
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ASN1_item_free((ASN1_VALUE *)a, &ECDSA_SIG_it);
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}
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void
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ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
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{
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if (pr != NULL)
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*pr = sig->r;
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if (ps != NULL)
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*ps = sig->s;
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}
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int
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ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
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{
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if (r == NULL || s == NULL)
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return 0;
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BN_clear_free(sig->r);
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BN_clear_free(sig->s);
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sig->r = r;
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sig->s = s;
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return 1;
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}
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