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 */ 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