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1 /* |
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2 * CDDL HEADER START |
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3 * |
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4 * The contents of this file are subject to the terms of the |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
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7 * |
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8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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9 * or http://www.opensolaris.org/os/licensing. |
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10 * See the License for the specific language governing permissions |
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11 * and limitations under the License. |
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12 * |
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13 * When distributing Covered Code, include this CDDL HEADER in each |
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14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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15 * If applicable, add the following below this CDDL HEADER, with the |
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16 * fields enclosed by brackets "[]" replaced with your own identifying |
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17 * information: Portions Copyright [yyyy] [name of copyright owner] |
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18 * |
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19 * CDDL HEADER END |
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20 */ |
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21 |
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22 /* |
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23 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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24 */ |
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25 |
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26 /* |
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27 * Certificate creation. Demonstrates some certificate related |
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28 * operations. |
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29 */ |
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30 |
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31 |
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32 #include <stdio.h> |
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33 #include <stdlib.h> |
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34 #include <string.h> |
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35 |
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36 #include <openssl/pem.h> |
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37 #include <openssl/conf.h> |
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38 #include <openssl/x509v3.h> |
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39 #ifndef OPENSSL_NO_ENGINE |
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40 #include <openssl/engine.h> |
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41 #endif |
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42 |
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43 int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days); |
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44 int add_ext(X509 *cert, int nid, char *value); |
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45 |
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46 int |
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47 main(int argc, char **argv) |
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48 { |
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49 BIO *bio_err; |
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50 X509 *x509 = NULL; |
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51 EVP_PKEY *pkey = NULL; |
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52 FILE *fp = NULL; |
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53 |
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54 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); |
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55 |
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56 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); |
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57 |
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58 mkcert(&x509, &pkey, 1024, 0, 365); |
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59 |
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60 RSA_print_fp(stdout, pkey->pkey.rsa, 0); |
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61 X509_print_fp(stdout, x509); |
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62 |
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63 fp = fopen("cust_key.pem", "w"); |
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64 PEM_write_PrivateKey(fp, pkey, NULL, NULL, 0, NULL, NULL); |
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65 fp = fopen("cust_cert.pem", "w"); |
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66 PEM_write_X509(fp, x509); |
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67 |
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68 X509_free(x509); |
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69 EVP_PKEY_free(pkey); |
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70 |
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71 #ifndef OPENSSL_NO_ENGINE |
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72 ENGINE_cleanup(); |
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73 #endif |
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74 CRYPTO_cleanup_all_ex_data(); |
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75 |
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76 CRYPTO_mem_leaks(bio_err); |
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77 BIO_free(bio_err); |
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78 return (0); |
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79 } |
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80 |
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81 static void callback(int p, int n, void *arg) |
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82 { |
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83 char c = 'B'; |
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84 |
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85 if (p == 0) c = '.'; |
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86 if (p == 1) c = '+'; |
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87 if (p == 2) c = '*'; |
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88 if (p == 3) c = '\n'; |
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89 fputc(c, stderr); |
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90 } |
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91 |
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92 int |
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93 mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days) |
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94 { |
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95 X509 *x; |
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96 EVP_PKEY *pk; |
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97 RSA *rsa; |
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98 X509_NAME *name = NULL; |
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99 |
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100 if ((pkeyp == NULL) || (*pkeyp == NULL)) { |
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101 if ((pk = EVP_PKEY_new()) == NULL) { |
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102 abort(); |
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103 } |
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104 } |
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105 else |
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106 pk = *pkeyp; |
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107 |
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108 if ((x509p == NULL) || (*x509p == NULL)) { |
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109 if ((x = X509_new()) == NULL) |
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110 goto err; |
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111 } |
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112 else |
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113 x = *x509p; |
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114 |
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115 rsa = RSA_generate_key(bits, RSA_F4, callback, NULL); |
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116 if (!EVP_PKEY_assign_RSA(pk, rsa)) { |
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117 abort(); |
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118 } |
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119 rsa = NULL; |
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120 |
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121 X509_set_version(x, 2); |
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122 ASN1_INTEGER_set(X509_get_serialNumber(x), serial); |
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123 X509_gmtime_adj(X509_get_notBefore(x), 0); |
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124 X509_gmtime_adj(X509_get_notAfter(x), (long)60*60*24*days); |
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125 X509_set_pubkey(x, pk); |
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126 |
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127 name = X509_get_subject_name(x); |
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128 |
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129 /* |
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130 * This function creates and adds the entry, working out the |
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131 * correct string type and performing checks on its length. |
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132 * Normally we'd check the return value for errors... |
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133 */ |
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134 X509_NAME_add_entry_by_txt(name, "C", |
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135 MBSTRING_ASC, (unsigned char *)"US", -1, -1, 0); |
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136 X509_NAME_add_entry_by_txt(name, "ST", |
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137 MBSTRING_ASC, (unsigned char *)"California", -1, -1, 0); |
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138 X509_NAME_add_entry_by_txt(name, "L", |
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139 MBSTRING_ASC, (unsigned char *)"Santa Clara", -1, -1, 0); |
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140 X509_NAME_add_entry_by_txt(name, "O", |
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141 MBSTRING_ASC, (unsigned char *)"pkg5", -1, -1, 0); |
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142 X509_NAME_add_entry_by_txt(name, "CN", |
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143 MBSTRING_ASC, (unsigned char *)"OpenSSL Group", -1, -1, 0); |
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144 |
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145 /* |
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146 * Its self signed so set the issuer name to be the same as the |
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147 * subject. |
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148 */ |
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149 X509_set_issuer_name(x, name); |
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150 |
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151 |
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152 #ifdef CUSTOM_EXT |
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153 /* Maybe even add our own extension based on existing */ |
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154 { |
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155 int nid; |
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156 nid = OBJ_create("1.2.3.4", "MyAlias", |
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157 "My Test Alias Extension"); |
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158 X509V3_EXT_add_alias(nid, NID_netscape_comment); |
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159 add_ext(x, nid, "critical,example comment alias"); |
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160 } |
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161 #endif |
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162 |
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163 if (!X509_sign(x, pk, EVP_sha256())) |
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164 goto err; |
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165 |
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166 *x509p = x; |
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167 *pkeyp = pk; |
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168 return (1); |
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169 err: |
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170 return (0); |
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171 } |
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172 |
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173 /* |
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174 * Add extension using V3 code: we can set the config file as NULL |
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175 * because we wont reference any other sections. |
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176 */ |
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177 |
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178 int |
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179 add_ext(X509 *cert, int nid, char *value) |
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180 { |
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181 X509_EXTENSION *ex; |
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182 X509V3_CTX ctx; |
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183 /* This sets the 'context' of the extensions. */ |
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184 /* No configuration database */ |
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185 X509V3_set_ctx_nodb(&ctx); |
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186 /* |
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187 * Issuer and subject certs: both the target since it is self signed, |
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188 * no request and no CRL |
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189 */ |
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190 X509V3_set_ctx(&ctx, cert, cert, NULL, NULL, 0); |
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191 ex = X509V3_EXT_conf_nid(NULL, &ctx, nid, value); |
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192 if (!ex) |
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193 return (0); |
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194 |
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195 X509_add_ext(cert, ex, -1); |
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196 X509_EXTENSION_free(ex); |
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197 return (1); |
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198 } |