test/dsatest.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 <stdlib.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15
  16 #include "../e_os.h"
  17
  18 #include <openssl/crypto.h>
  19 #include <openssl/rand.h>
  20 #include <openssl/bio.h>
  21 #include <openssl/err.h>
  22 #include <openssl/bn.h>
  23
  24 #ifdef OPENSSL_NO_DSA
  25 int main(int argc, char *argv[])
  26 {
  27     printf("No DSA support\n");
  28     return (0);
  29 }
  30 #else
  31 # include <openssl/dsa.h>
  32
  33 static int dsa_cb(int p, int n, BN_GENCB *arg);
  34
  35 /*
  36  * seed, out_p, out_q, out_g are taken from the updated Appendix 5 to FIPS
  37  * PUB 186 and also appear in Appendix 5 to FIPS PIB 186-1
  38  */
  39 static unsigned char seed[20] = {
  40     0xd5, 0x01, 0x4e, 0x4b, 0x60, 0xef, 0x2b, 0xa8, 0xb6, 0x21, 0x1b, 0x40,
  41     0x62, 0xba, 0x32, 0x24, 0xe0, 0x42, 0x7d, 0xd3,
  42 };
  43
  44 static unsigned char out_p[] = {
  45     0x8d, 0xf2, 0xa4, 0x94, 0x49, 0x22, 0x76, 0xaa,
  46     0x3d, 0x25, 0x75, 0x9b, 0xb0, 0x68, 0x69, 0xcb,
  47     0xea, 0xc0, 0xd8, 0x3a, 0xfb, 0x8d, 0x0c, 0xf7,
  48     0xcb, 0xb8, 0x32, 0x4f, 0x0d, 0x78, 0x82, 0xe5,
  49     0xd0, 0x76, 0x2f, 0xc5, 0xb7, 0x21, 0x0e, 0xaf,
  50     0xc2, 0xe9, 0xad, 0xac, 0x32, 0xab, 0x7a, 0xac,
  51     0x49, 0x69, 0x3d, 0xfb, 0xf8, 0x37, 0x24, 0xc2,
  52     0xec, 0x07, 0x36, 0xee, 0x31, 0xc8, 0x02, 0x91,
  53 };
  54
  55 static unsigned char out_q[] = {
  56     0xc7, 0x73, 0x21, 0x8c, 0x73, 0x7e, 0xc8, 0xee,
  57     0x99, 0x3b, 0x4f, 0x2d, 0xed, 0x30, 0xf4, 0x8e,
  58     0xda, 0xce, 0x91, 0x5f,
  59 };
  60
  61 static unsigned char out_g[] = {
  62     0x62, 0x6d, 0x02, 0x78, 0x39, 0xea, 0x0a, 0x13,
  63     0x41, 0x31, 0x63, 0xa5, 0x5b, 0x4c, 0xb5, 0x00,
  64     0x29, 0x9d, 0x55, 0x22, 0x95, 0x6c, 0xef, 0xcb,
  65     0x3b, 0xff, 0x10, 0xf3, 0x99, 0xce, 0x2c, 0x2e,
  66     0x71, 0xcb, 0x9d, 0xe5, 0xfa, 0x24, 0xba, 0xbf,
  67     0x58, 0xe5, 0xb7, 0x95, 0x21, 0x92, 0x5c, 0x9c,
  68     0xc4, 0x2e, 0x9f, 0x6f, 0x46, 0x4b, 0x08, 0x8c,
  69     0xc5, 0x72, 0xaf, 0x53, 0xe6, 0xd7, 0x88, 0x02,
  70 };
  71
  72 static const unsigned char str1[] = "12345678901234567890";
  73
  74 static const char rnd_seed[] =
  75     "string to make the random number generator think it has entropy";
  76
  77 static BIO *bio_err = NULL;
  78
  79 int main(int argc, char **argv)
  80 {
  81     BN_GENCB *cb;
  82     DSA *dsa = NULL;
  83     int counter, ret = 0, i, j;
  84     unsigned char buf[256];
  85     unsigned long h;
  86     unsigned char sig[256];
  87     unsigned int siglen;
  88     const BIGNUM *p = NULL, *q = NULL, *g = NULL;
  89
  90     if (bio_err == NULL)
  91         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
  92
  93     CRYPTO_set_mem_debug(1);
  94     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
  95
  96     RAND_seed(rnd_seed, sizeof rnd_seed);
  97
  98     BIO_printf(bio_err, "test generation of DSA parameters\n");
  99
 100     cb = BN_GENCB_new();
 101     if (!cb)
 102         goto end;
 103
 104     BN_GENCB_set(cb, dsa_cb, bio_err);
 105     if (((dsa = DSA_new()) == NULL) || !DSA_generate_parameters_ex(dsa, 512,
 106                                                                    seed, 20,
 107                                                                    &counter,
 108                                                                    &h, cb))
 109         goto end;
 110
 111     BIO_printf(bio_err, "seed\n");
 112     for (i = 0; i < 20; i += 4) {
 113         BIO_printf(bio_err, "%02X%02X%02X%02X ",
 114                    seed[i], seed[i + 1], seed[i + 2], seed[i + 3]);
 115     }
 116     BIO_printf(bio_err, "\ncounter=%d h=%ld\n", counter, h);
 117
 118     DSA_print(bio_err, dsa, 0);
 119     if (counter != 105) {
 120         BIO_printf(bio_err, "counter should be 105\n");
 121         goto end;
 122     }
 123     if (h != 2) {
 124         BIO_printf(bio_err, "h should be 2\n");
 125         goto end;
 126     }
 127
 128     DSA_get0_pqg(dsa, &p, &q, &g);
 129     i = BN_bn2bin(q, buf);
 130     j = sizeof(out_q);
 131     if ((i != j) || (memcmp(buf, out_q, i) != 0)) {
 132         BIO_printf(bio_err, "q value is wrong\n");
 133         goto end;
 134     }
 135
 136     i = BN_bn2bin(p, buf);
 137     j = sizeof(out_p);
 138     if ((i != j) || (memcmp(buf, out_p, i) != 0)) {
 139         BIO_printf(bio_err, "p value is wrong\n");
 140         goto end;
 141     }
 142
 143     i = BN_bn2bin(g, buf);
 144     j = sizeof(out_g);
 145     if ((i != j) || (memcmp(buf, out_g, i) != 0)) {
 146         BIO_printf(bio_err, "g value is wrong\n");
 147         goto end;
 148     }
 149
 150     DSA_generate_key(dsa);
 151     DSA_sign(0, str1, 20, sig, &siglen, dsa);
 152     if (DSA_verify(0, str1, 20, sig, siglen, dsa) == 1)
 153         ret = 1;
 154
 155  end:
 156     if (!ret)
 157         ERR_print_errors(bio_err);
 158     DSA_free(dsa);
 159     BN_GENCB_free(cb);
 160
 161 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 162     if (CRYPTO_mem_leaks(bio_err) <= 0)
 163         ret = 0;
 164 #endif
 165     BIO_free(bio_err);
 166     bio_err = NULL;
 167     EXIT(!ret);
 168 }
 169
 170 static int dsa_cb(int p, int n, BN_GENCB *arg)
 171 {
 172     char c = '*';
 173     static int ok = 0, num = 0;
 174
 175     if (p == 0) {
 176         c = '.';
 177         num++;
 178     };
 179     if (p == 1)
 180         c = '+';
 181     if (p == 2) {
 182         c = '*';
 183         ok++;
 184     }
 185     if (p == 3)
 186         c = '\n';
 187     BIO_write(BN_GENCB_get_arg(arg), &c, 1);
 188     (void)BIO_flush(BN_GENCB_get_arg(arg));
 189
 190     if (!ok && (p == 0) && (num > 1)) {
 191         BIO_printf(BN_GENCB_get_arg(arg), "error in dsatest\n");
 192         return 0;
 193     }
 194     return 1;
 195 }
 196 #endif