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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/dsa/dsa_asn1.c
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
61 #include <openssl/dsa.h>
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
65 /* Override the default new methods */
66 static int sig_cb(int operation
, ASN1_VALUE
**pval
, const ASN1_ITEM
*it
,
69 if(operation
== ASN1_OP_NEW_PRE
) {
71 sig
= OPENSSL_malloc(sizeof(DSA_SIG
));
74 *pval
= (ASN1_VALUE
*)sig
;
76 DSAerr(DSA_F_SIG_CB
, ERR_R_MALLOC_FAILURE
);
82 ASN1_SEQUENCE_cb(DSA_SIG
, sig_cb
) = {
83 ASN1_SIMPLE(DSA_SIG
, r
, CBIGNUM
),
84 ASN1_SIMPLE(DSA_SIG
, s
, CBIGNUM
)
85 } ASN1_SEQUENCE_END_cb(DSA_SIG
, DSA_SIG
)
87 IMPLEMENT_ASN1_FUNCTIONS_const(DSA_SIG
)
89 /* Override the default free and new methods */
90 static int dsa_cb(int operation
, ASN1_VALUE
**pval
, const ASN1_ITEM
*it
,
93 if(operation
== ASN1_OP_NEW_PRE
) {
94 *pval
= (ASN1_VALUE
*)DSA_new();
97 } else if(operation
== ASN1_OP_FREE_PRE
) {
98 DSA_free((DSA
*)*pval
);
105 ASN1_SEQUENCE_cb(DSAPrivateKey
, dsa_cb
) = {
106 ASN1_SIMPLE(DSA
, version
, LONG
),
107 ASN1_SIMPLE(DSA
, p
, BIGNUM
),
108 ASN1_SIMPLE(DSA
, q
, BIGNUM
),
109 ASN1_SIMPLE(DSA
, g
, BIGNUM
),
110 ASN1_SIMPLE(DSA
, pub_key
, BIGNUM
),
111 ASN1_SIMPLE(DSA
, priv_key
, BIGNUM
)
112 } ASN1_SEQUENCE_END_cb(DSA
, DSAPrivateKey
)
114 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA
, DSAPrivateKey
, DSAPrivateKey
)
116 ASN1_SEQUENCE_cb(DSAparams
, dsa_cb
) = {
117 ASN1_SIMPLE(DSA
, p
, BIGNUM
),
118 ASN1_SIMPLE(DSA
, q
, BIGNUM
),
119 ASN1_SIMPLE(DSA
, g
, BIGNUM
),
120 } ASN1_SEQUENCE_END_cb(DSA
, DSAparams
)
122 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA
, DSAparams
, DSAparams
)
124 /* DSA public key is a bit trickier... its effectively a CHOICE type
125 * decided by a field called write_params which can either write out
126 * just the public key as an INTEGER or the parameters and public key
130 ASN1_SEQUENCE(dsa_pub_internal
) = {
131 ASN1_SIMPLE(DSA
, pub_key
, BIGNUM
),
132 ASN1_SIMPLE(DSA
, p
, BIGNUM
),
133 ASN1_SIMPLE(DSA
, q
, BIGNUM
),
134 ASN1_SIMPLE(DSA
, g
, BIGNUM
)
135 } ASN1_SEQUENCE_END_name(DSA
, dsa_pub_internal
)
137 ASN1_CHOICE_cb(DSAPublicKey
, dsa_cb
) = {
138 ASN1_SIMPLE(DSA
, pub_key
, BIGNUM
),
139 ASN1_EX_COMBINE(0, 0, dsa_pub_internal
)
140 } ASN1_CHOICE_END_cb(DSA
, DSAPublicKey
, write_params
)
142 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA
, DSAPublicKey
, DSAPublicKey
)