1 /*
2 * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /*
11 * DSA low level APIs are deprecated for public use, but still ok for
12 * internal use.
13 */
14 #include "internal/deprecated.h"
15
16 #include <stdio.h>
17 #include "internal/cryptlib.h"
18 #include "dsa_local.h"
19 #include <openssl/asn1.h>
20 #include <openssl/asn1t.h>
21 #include <openssl/rand.h>
22 #include "crypto/asn1_dsa.h"
23
24 /* Override the default free and new methods */
dsa_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)25 static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
26 void *exarg)
27 {
28 if (operation == ASN1_OP_NEW_PRE) {
29 *pval = (ASN1_VALUE *)DSA_new();
30 if (*pval != NULL)
31 return 2;
32 return 0;
33 } else if (operation == ASN1_OP_FREE_PRE) {
34 DSA_free((DSA *)*pval);
35 *pval = NULL;
36 return 2;
37 }
38 return 1;
39 }
40
41 ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {
42 ASN1_EMBED(DSA, version, INT32),
43 ASN1_SIMPLE(DSA, params.p, BIGNUM),
44 ASN1_SIMPLE(DSA, params.q, BIGNUM),
45 ASN1_SIMPLE(DSA, params.g, BIGNUM),
46 ASN1_SIMPLE(DSA, pub_key, BIGNUM),
47 ASN1_SIMPLE(DSA, priv_key, CBIGNUM)
48 } static_ASN1_SEQUENCE_END_cb(DSA, DSAPrivateKey)
49
50 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(DSA, DSAPrivateKey, DSAPrivateKey)
51
52 ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {
53 ASN1_SIMPLE(DSA, params.p, BIGNUM),
54 ASN1_SIMPLE(DSA, params.q, BIGNUM),
55 ASN1_SIMPLE(DSA, params.g, BIGNUM),
56 } static_ASN1_SEQUENCE_END_cb(DSA, DSAparams)
57
58 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(DSA, DSAparams, DSAparams)
59
60 ASN1_SEQUENCE_cb(DSAPublicKey, dsa_cb) = {
61 ASN1_SIMPLE(DSA, pub_key, BIGNUM),
62 ASN1_SIMPLE(DSA, params.p, BIGNUM),
63 ASN1_SIMPLE(DSA, params.q, BIGNUM),
64 ASN1_SIMPLE(DSA, params.g, BIGNUM)
65 } static_ASN1_SEQUENCE_END_cb(DSA, DSAPublicKey)
66
67 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(DSA, DSAPublicKey, DSAPublicKey)
68
69 DSA *DSAparams_dup(const DSA *dsa)
70 {
71 return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), dsa);
72 }
73
