1/* 2 * Copyright 1995-2017 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 <openssl/crypto.h> 17#include <openssl/rand.h> 18#include <openssl/bn.h> 19#include <openssl/dsa.h> 20 21#include "testutil.h" 22#include "internal/nelem.h" 23 24#ifndef OPENSSL_NO_DSA 25static int dsa_cb(int p, int n, BN_GENCB *arg); 26 27/* 28 * seed, out_p, out_q, out_g are taken from the updated Appendix 5 to FIPS 29 * PUB 186 and also appear in Appendix 5 to FIPS PIB 186-1 30 */ 31static unsigned char seed[20] = { 32 0xd5, 0x01, 0x4e, 0x4b, 0x60, 0xef, 0x2b, 0xa8, 0xb6, 0x21, 0x1b, 0x40, 33 0x62, 0xba, 0x32, 0x24, 0xe0, 0x42, 0x7d, 0xd3, 34}; 35 36static unsigned char out_p[] = { 37 0x8d, 0xf2, 0xa4, 0x94, 0x49, 0x22, 0x76, 0xaa, 38 0x3d, 0x25, 0x75, 0x9b, 0xb0, 0x68, 0x69, 0xcb, 39 0xea, 0xc0, 0xd8, 0x3a, 0xfb, 0x8d, 0x0c, 0xf7, 40 0xcb, 0xb8, 0x32, 0x4f, 0x0d, 0x78, 0x82, 0xe5, 41 0xd0, 0x76, 0x2f, 0xc5, 0xb7, 0x21, 0x0e, 0xaf, 42 0xc2, 0xe9, 0xad, 0xac, 0x32, 0xab, 0x7a, 0xac, 43 0x49, 0x69, 0x3d, 0xfb, 0xf8, 0x37, 0x24, 0xc2, 44 0xec, 0x07, 0x36, 0xee, 0x31, 0xc8, 0x02, 0x91, 45}; 46 47static unsigned char out_q[] = { 48 0xc7, 0x73, 0x21, 0x8c, 0x73, 0x7e, 0xc8, 0xee, 49 0x99, 0x3b, 0x4f, 0x2d, 0xed, 0x30, 0xf4, 0x8e, 50 0xda, 0xce, 0x91, 0x5f, 51}; 52 53static unsigned char out_g[] = { 54 0x62, 0x6d, 0x02, 0x78, 0x39, 0xea, 0x0a, 0x13, 55 0x41, 0x31, 0x63, 0xa5, 0x5b, 0x4c, 0xb5, 0x00, 56 0x29, 0x9d, 0x55, 0x22, 0x95, 0x6c, 0xef, 0xcb, 57 0x3b, 0xff, 0x10, 0xf3, 0x99, 0xce, 0x2c, 0x2e, 58 0x71, 0xcb, 0x9d, 0xe5, 0xfa, 0x24, 0xba, 0xbf, 59 0x58, 0xe5, 0xb7, 0x95, 0x21, 0x92, 0x5c, 0x9c, 60 0xc4, 0x2e, 0x9f, 0x6f, 0x46, 0x4b, 0x08, 0x8c, 61 0xc5, 0x72, 0xaf, 0x53, 0xe6, 0xd7, 0x88, 0x02, 62}; 63 64static const unsigned char str1[] = "12345678901234567890"; 65 66static int dsa_test(void) 67{ 68 BN_GENCB *cb; 69 DSA *dsa = NULL; 70 int counter, ret = 0, i, j; 71 unsigned char buf[256]; 72 unsigned long h; 73 unsigned char sig[256]; 74 unsigned int siglen; 75 const BIGNUM *p = NULL, *q = NULL, *g = NULL; 76 77 if (!TEST_ptr(cb = BN_GENCB_new())) 78 goto end; 79 80 BN_GENCB_set(cb, dsa_cb, NULL); 81 if (!TEST_ptr(dsa = DSA_new()) 82 || !TEST_true(DSA_generate_parameters_ex(dsa, 512, seed, 20, 83 &counter, &h, cb))) 84 goto end; 85 86 if (!TEST_int_eq(counter, 105)) 87 goto end; 88 if (!TEST_int_eq(h, 2)) 89 goto end; 90 91 DSA_get0_pqg(dsa, &p, &q, &g); 92 i = BN_bn2bin(q, buf); 93 j = sizeof(out_q); 94 if (!TEST_int_eq(i, j) || !TEST_mem_eq(buf, i, out_q, i)) 95 goto end; 96 97 i = BN_bn2bin(p, buf); 98 j = sizeof(out_p); 99 if (!TEST_int_eq(i, j) || !TEST_mem_eq(buf, i, out_p, i)) 100 goto end; 101 102 i = BN_bn2bin(g, buf); 103 j = sizeof(out_g); 104 if (!TEST_int_eq(i, j) || !TEST_mem_eq(buf, i, out_g, i)) 105 goto end; 106 107 DSA_generate_key(dsa); 108 DSA_sign(0, str1, 20, sig, &siglen, dsa); 109 if (TEST_true(DSA_verify(0, str1, 20, sig, siglen, dsa))) 110 ret = 1; 111 112 end: 113 DSA_free(dsa); 114 BN_GENCB_free(cb); 115 return ret; 116} 117 118static int dsa_cb(int p, int n, BN_GENCB *arg) 119{ 120 static int ok = 0, num = 0; 121 122 if (p == 0) 123 num++; 124 if (p == 2) 125 ok++; 126 127 if (!ok && (p == 0) && (num > 1)) { 128 TEST_error("dsa_cb error"); 129 return 0; 130 } 131 return 1; 132} 133#endif /* OPENSSL_NO_DSA */ 134 135int setup_tests(void) 136{ 137#ifndef OPENSSL_NO_DSA 138 ADD_TEST(dsa_test); 139#endif 140 return 1; 141} 142