crypto/dsa/dsa_asn1.c

   1 /*
   2  * Copyright 1999-2016 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 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include "dsa_local.h"
  13 #include <openssl/asn1.h>
  14 #include <openssl/asn1t.h>
  15 #include <openssl/rand.h>
  16 #include "crypto/asn1_dsa.h"
  17
  18 /* Override the default free and new methods */
  19 static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
  20                   void *exarg)
  21 {
  22     if (operation == ASN1_OP_NEW_PRE) {
  23         *pval = (ASN1_VALUE *)DSA_new();
  24         if (*pval != NULL)
  25             return 2;
  26         return 0;
  27     } else if (operation == ASN1_OP_FREE_PRE) {
  28         DSA_free((DSA *)*pval);
  29         *pval = NULL;
  30         return 2;
  31     }
  32     return 1;
  33 }
  34
  35 ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {
  36         ASN1_EMBED(DSA, version, INT32),
  37         ASN1_SIMPLE(DSA, params.p, BIGNUM),
  38         ASN1_SIMPLE(DSA, params.q, BIGNUM),
  39         ASN1_SIMPLE(DSA, params.g, BIGNUM),
  40         ASN1_SIMPLE(DSA, pub_key, BIGNUM),
  41         ASN1_SIMPLE(DSA, priv_key, CBIGNUM)
  42 } static_ASN1_SEQUENCE_END_cb(DSA, DSAPrivateKey)
  43
  44 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(DSA, DSAPrivateKey, DSAPrivateKey)
  45
  46 ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {
  47         ASN1_SIMPLE(DSA, params.p, BIGNUM),
  48         ASN1_SIMPLE(DSA, params.q, BIGNUM),
  49         ASN1_SIMPLE(DSA, params.g, BIGNUM),
  50 } static_ASN1_SEQUENCE_END_cb(DSA, DSAparams)
  51
  52 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(DSA, DSAparams, DSAparams)
  53
  54 ASN1_SEQUENCE_cb(DSAPublicKey, dsa_cb) = {
  55         ASN1_SIMPLE(DSA, pub_key, BIGNUM),
  56         ASN1_SIMPLE(DSA, params.p, BIGNUM),
  57         ASN1_SIMPLE(DSA, params.q, BIGNUM),
  58         ASN1_SIMPLE(DSA, params.g, BIGNUM)
  59 } static_ASN1_SEQUENCE_END_cb(DSA, DSAPublicKey)
  60
  61 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(DSA, DSAPublicKey, DSAPublicKey)
  62
  63 DSA *DSAparams_dup(const DSA *dsa)
  64 {
  65     return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), dsa);
  66 }