1*0Sstevel@tonic-gate /* dsa_asn1.c */
2*0Sstevel@tonic-gate /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3*0Sstevel@tonic-gate * project 2000.
4*0Sstevel@tonic-gate */
5*0Sstevel@tonic-gate /* ====================================================================
6*0Sstevel@tonic-gate * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
7*0Sstevel@tonic-gate *
8*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
9*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions
10*0Sstevel@tonic-gate * are met:
11*0Sstevel@tonic-gate *
12*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
13*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
14*0Sstevel@tonic-gate *
15*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
16*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in
17*0Sstevel@tonic-gate * the documentation and/or other materials provided with the
18*0Sstevel@tonic-gate * distribution.
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this
21*0Sstevel@tonic-gate * software must display the following acknowledgment:
22*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project
23*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24*0Sstevel@tonic-gate *
25*0Sstevel@tonic-gate * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26*0Sstevel@tonic-gate * endorse or promote products derived from this software without
27*0Sstevel@tonic-gate * prior written permission. For written permission, please contact
28*0Sstevel@tonic-gate * licensing@OpenSSL.org.
29*0Sstevel@tonic-gate *
30*0Sstevel@tonic-gate * 5. Products derived from this software may not be called "OpenSSL"
31*0Sstevel@tonic-gate * nor may "OpenSSL" appear in their names without prior written
32*0Sstevel@tonic-gate * permission of the OpenSSL Project.
33*0Sstevel@tonic-gate *
34*0Sstevel@tonic-gate * 6. Redistributions of any form whatsoever must retain the following
35*0Sstevel@tonic-gate * acknowledgment:
36*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project
37*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38*0Sstevel@tonic-gate *
39*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40*0Sstevel@tonic-gate * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42*0Sstevel@tonic-gate * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43*0Sstevel@tonic-gate * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44*0Sstevel@tonic-gate * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45*0Sstevel@tonic-gate * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46*0Sstevel@tonic-gate * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48*0Sstevel@tonic-gate * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49*0Sstevel@tonic-gate * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50*0Sstevel@tonic-gate * OF THE POSSIBILITY OF SUCH DAMAGE.
51*0Sstevel@tonic-gate * ====================================================================
52*0Sstevel@tonic-gate *
53*0Sstevel@tonic-gate * This product includes cryptographic software written by Eric Young
54*0Sstevel@tonic-gate * (eay@cryptsoft.com). This product includes software written by Tim
55*0Sstevel@tonic-gate * Hudson (tjh@cryptsoft.com).
56*0Sstevel@tonic-gate *
57*0Sstevel@tonic-gate */
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate #include <stdio.h>
60*0Sstevel@tonic-gate #include "cryptlib.h"
61*0Sstevel@tonic-gate #include <openssl/dsa.h>
62*0Sstevel@tonic-gate #include <openssl/asn1.h>
63*0Sstevel@tonic-gate #include <openssl/asn1t.h>
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate /* Override the default new methods */
sig_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it)66*0Sstevel@tonic-gate static int sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
67*0Sstevel@tonic-gate {
68*0Sstevel@tonic-gate if(operation == ASN1_OP_NEW_PRE) {
69*0Sstevel@tonic-gate DSA_SIG *sig;
70*0Sstevel@tonic-gate sig = OPENSSL_malloc(sizeof(DSA_SIG));
71*0Sstevel@tonic-gate sig->r = NULL;
72*0Sstevel@tonic-gate sig->s = NULL;
73*0Sstevel@tonic-gate *pval = (ASN1_VALUE *)sig;
74*0Sstevel@tonic-gate if(sig) return 2;
75*0Sstevel@tonic-gate DSAerr(DSA_F_SIG_CB, ERR_R_MALLOC_FAILURE);
76*0Sstevel@tonic-gate return 0;
77*0Sstevel@tonic-gate }
78*0Sstevel@tonic-gate return 1;
79*0Sstevel@tonic-gate }
80*0Sstevel@tonic-gate
81*0Sstevel@tonic-gate ASN1_SEQUENCE_cb(DSA_SIG, sig_cb) = {
82*0Sstevel@tonic-gate ASN1_SIMPLE(DSA_SIG, r, CBIGNUM),
83*0Sstevel@tonic-gate ASN1_SIMPLE(DSA_SIG, s, CBIGNUM)
84*0Sstevel@tonic-gate } ASN1_SEQUENCE_END_cb(DSA_SIG, DSA_SIG)
85*0Sstevel@tonic-gate
86*0Sstevel@tonic-gate IMPLEMENT_ASN1_FUNCTIONS_const(DSA_SIG)
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate /* Override the default free and new methods */
89*0Sstevel@tonic-gate static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
90*0Sstevel@tonic-gate {
91*0Sstevel@tonic-gate if(operation == ASN1_OP_NEW_PRE) {
92*0Sstevel@tonic-gate *pval = (ASN1_VALUE *)DSA_new();
93*0Sstevel@tonic-gate if(*pval) return 2;
94*0Sstevel@tonic-gate return 0;
95*0Sstevel@tonic-gate } else if(operation == ASN1_OP_FREE_PRE) {
96*0Sstevel@tonic-gate DSA_free((DSA *)*pval);
97*0Sstevel@tonic-gate *pval = NULL;
98*0Sstevel@tonic-gate return 2;
99*0Sstevel@tonic-gate }
100*0Sstevel@tonic-gate return 1;
101*0Sstevel@tonic-gate }
102*0Sstevel@tonic-gate
103*0Sstevel@tonic-gate ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {
104*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, version, LONG),
105*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, p, BIGNUM),
106*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, q, BIGNUM),
107*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, g, BIGNUM),
108*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, pub_key, BIGNUM),
109*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, priv_key, BIGNUM)
110*0Sstevel@tonic-gate } ASN1_SEQUENCE_END_cb(DSA, DSAPrivateKey)
111*0Sstevel@tonic-gate
112*0Sstevel@tonic-gate IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPrivateKey, DSAPrivateKey)
113*0Sstevel@tonic-gate
114*0Sstevel@tonic-gate ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {
115*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, p, BIGNUM),
116*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, q, BIGNUM),
117*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, g, BIGNUM),
118*0Sstevel@tonic-gate } ASN1_SEQUENCE_END_cb(DSA, DSAparams)
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAparams, DSAparams)
121*0Sstevel@tonic-gate
122*0Sstevel@tonic-gate /* DSA public key is a bit trickier... its effectively a CHOICE type
123*0Sstevel@tonic-gate * decided by a field called write_params which can either write out
124*0Sstevel@tonic-gate * just the public key as an INTEGER or the parameters and public key
125*0Sstevel@tonic-gate * in a SEQUENCE
126*0Sstevel@tonic-gate */
127*0Sstevel@tonic-gate
128*0Sstevel@tonic-gate ASN1_SEQUENCE(dsa_pub_internal) = {
129*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, pub_key, BIGNUM),
130*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, p, BIGNUM),
131*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, q, BIGNUM),
132*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, g, BIGNUM)
133*0Sstevel@tonic-gate } ASN1_SEQUENCE_END_name(DSA, dsa_pub_internal)
134*0Sstevel@tonic-gate
135*0Sstevel@tonic-gate ASN1_CHOICE_cb(DSAPublicKey, dsa_cb) = {
136*0Sstevel@tonic-gate ASN1_SIMPLE(DSA, pub_key, BIGNUM),
137*0Sstevel@tonic-gate ASN1_EX_COMBINE(0, 0, dsa_pub_internal)
138*0Sstevel@tonic-gate } ASN1_CHOICE_END_cb(DSA, DSAPublicKey, write_params)
139*0Sstevel@tonic-gate
140*0Sstevel@tonic-gate IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPublicKey, DSAPublicKey)
141