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1 /* apps/gendsa.c */ |
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2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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3 * All rights reserved. |
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4 * |
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5 * This package is an SSL implementation written |
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6 * by Eric Young (eay@cryptsoft.com). |
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7 * The implementation was written so as to conform with Netscapes SSL. |
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8 * |
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9 * This library is free for commercial and non-commercial use as long as |
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10 * the following conditions are aheared to. The following conditions |
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11 * apply to all code found in this distribution, be it the RC4, RSA, |
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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13 * included with this distribution is covered by the same copyright terms |
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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15 * |
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16 * Copyright remains Eric Young's, and as such any Copyright notices in |
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17 * the code are not to be removed. |
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18 * If this package is used in a product, Eric Young should be given attribution |
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19 * as the author of the parts of the library used. |
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20 * This can be in the form of a textual message at program startup or |
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21 * in documentation (online or textual) provided with the package. |
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22 * |
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23 * Redistribution and use in source and binary forms, with or without |
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24 * modification, are permitted provided that the following conditions |
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25 * are met: |
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26 * 1. Redistributions of source code must retain the copyright |
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27 * notice, this list of conditions and the following disclaimer. |
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28 * 2. Redistributions in binary form must reproduce the above copyright |
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29 * notice, this list of conditions and the following disclaimer in the |
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30 * documentation and/or other materials provided with the distribution. |
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31 * 3. All advertising materials mentioning features or use of this software |
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32 * must display the following acknowledgement: |
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33 * "This product includes cryptographic software written by |
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34 * Eric Young (eay@cryptsoft.com)" |
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35 * The word 'cryptographic' can be left out if the rouines from the library |
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36 * being used are not cryptographic related :-). |
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37 * 4. If you include any Windows specific code (or a derivative thereof) from |
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38 * the apps directory (application code) you must include an acknowledgement: |
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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40 * |
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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51 * SUCH DAMAGE. |
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52 * |
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53 * The licence and distribution terms for any publically available version or |
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be |
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55 * copied and put under another distribution licence |
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56 * [including the GNU Public Licence.] |
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57 */ |
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58 |
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59 #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ |
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60 #ifndef OPENSSL_NO_DSA |
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61 #include <stdio.h> |
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62 #include <string.h> |
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63 #include <sys/types.h> |
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64 #include <sys/stat.h> |
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65 #include "apps.h" |
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66 #include <openssl/bio.h> |
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67 #include <openssl/err.h> |
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68 #include <openssl/bn.h> |
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69 #include <openssl/dsa.h> |
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70 #include <openssl/x509.h> |
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71 #include <openssl/pem.h> |
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72 |
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73 #define DEFBITS 512 |
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74 #undef PROG |
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75 #define PROG gendsa_main |
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76 |
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77 |
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78 int MAIN(int, char **); |
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79 |
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80 int MAIN(int argc, char **argv) |
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81 { |
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82 #ifndef OPENSSL_NO_ENGINE |
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83 ENGINE *e = NULL; |
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84 #endif |
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85 DSA *dsa=NULL; |
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86 int ret=1; |
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87 char *outfile=NULL; |
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88 char *inrand=NULL,*dsaparams=NULL; |
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89 char *passargout = NULL, *passout = NULL; |
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90 BIO *out=NULL,*in=NULL; |
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91 const EVP_CIPHER *enc=NULL; |
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92 #ifndef OPENSSL_NO_ENGINE |
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93 char *engine=NULL; |
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94 #endif |
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95 |
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96 apps_startup(); |
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97 |
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98 if (bio_err == NULL) |
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99 if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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100 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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101 |
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102 |
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103 if (!load_config(bio_err, NULL)) |
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104 goto end; |
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105 |
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106 argv++; |
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107 argc--; |
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108 for (;;) |
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109 { |
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110 if (argc <= 0) break; |
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111 if (strcmp(*argv,"-out") == 0) |
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112 { |
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113 if (--argc < 1) goto bad; |
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114 outfile= *(++argv); |
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115 } |
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116 else if (strcmp(*argv,"-passout") == 0) |
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117 { |
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118 if (--argc < 1) goto bad; |
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119 passargout= *(++argv); |
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120 } |
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121 #ifndef OPENSSL_NO_ENGINE |
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122 else if (strcmp(*argv,"-engine") == 0) |
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123 { |
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124 if (--argc < 1) goto bad; |
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125 engine= *(++argv); |
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126 } |
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127 #endif |
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128 else if (strcmp(*argv,"-rand") == 0) |
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129 { |
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130 if (--argc < 1) goto bad; |
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131 inrand= *(++argv); |
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132 } |
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133 else if (strcmp(*argv,"-") == 0) |
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134 goto bad; |
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135 #ifndef OPENSSL_NO_DES |
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136 else if (strcmp(*argv,"-des") == 0) |
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137 enc=EVP_des_cbc(); |
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138 else if (strcmp(*argv,"-des3") == 0) |
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139 enc=EVP_des_ede3_cbc(); |
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140 #endif |
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141 #ifndef OPENSSL_NO_IDEA |
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142 else if (strcmp(*argv,"-idea") == 0) |
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143 enc=EVP_idea_cbc(); |
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144 #endif |
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145 #ifndef OPENSSL_NO_AES |
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146 else if (strcmp(*argv,"-aes128") == 0) |
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147 enc=EVP_aes_128_cbc(); |
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148 else if (strcmp(*argv,"-aes192") == 0) |
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149 enc=EVP_aes_192_cbc(); |
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150 else if (strcmp(*argv,"-aes256") == 0) |
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151 enc=EVP_aes_256_cbc(); |
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152 #endif |
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153 else if (**argv != '-' && dsaparams == NULL) |
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154 { |
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155 dsaparams = *argv; |
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156 } |
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157 else |
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158 goto bad; |
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159 argv++; |
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160 argc--; |
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161 } |
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162 |
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163 if (dsaparams == NULL) |
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164 { |
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165 bad: |
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166 BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n"); |
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167 BIO_printf(bio_err," -out file - output the key to 'file'\n"); |
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168 #ifndef OPENSSL_NO_DES |
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169 BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n"); |
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170 BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); |
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171 #endif |
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172 #ifndef OPENSSL_NO_IDEA |
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173 BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n"); |
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174 #endif |
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175 #ifndef OPENSSL_NO_AES |
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176 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
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177 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
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178 #endif |
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179 #ifndef OPENSSL_NO_ENGINE |
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180 BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n"); |
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181 #endif |
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182 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); |
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183 BIO_printf(bio_err," - load the file (or the files in the directory) into\n"); |
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184 BIO_printf(bio_err," the random number generator\n"); |
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185 BIO_printf(bio_err," dsaparam-file\n"); |
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186 BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n"); |
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187 goto end; |
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188 } |
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189 |
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190 #ifndef OPENSSL_NO_ENGINE |
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191 e = setup_engine(bio_err, engine, 0); |
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192 #endif |
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193 |
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194 if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { |
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195 BIO_printf(bio_err, "Error getting password\n"); |
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196 goto end; |
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197 } |
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198 |
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199 |
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200 in=BIO_new(BIO_s_file()); |
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201 if (!(BIO_read_filename(in,dsaparams))) |
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202 { |
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203 perror(dsaparams); |
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204 goto end; |
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205 } |
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206 |
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207 if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL) |
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208 { |
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209 BIO_printf(bio_err,"unable to load DSA parameter file\n"); |
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210 goto end; |
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211 } |
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212 BIO_free(in); |
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213 in = NULL; |
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214 |
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215 out=BIO_new(BIO_s_file()); |
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216 if (out == NULL) goto end; |
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217 |
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218 if (outfile == NULL) |
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219 { |
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220 BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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221 |
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222 #ifdef OPENSSL_SYS_VMS |
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223 { |
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224 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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225 out = BIO_push(tmpbio, out); |
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226 } |
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227 #endif |
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228 } |
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229 else |
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230 { |
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231 if (BIO_write_filename(out,outfile) <= 0) |
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232 { |
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233 perror(outfile); |
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234 goto end; |
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235 } |
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236 } |
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237 |
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238 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) |
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239 { |
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240 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); |
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241 } |
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242 if (inrand != NULL) |
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243 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", |
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244 app_RAND_load_files(inrand)); |
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245 |
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246 BIO_printf(bio_err,"Generating DSA key, %d bits\n", |
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247 BN_num_bits(dsa->p)); |
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248 if (!DSA_generate_key(dsa)) goto end; |
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249 |
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250 app_RAND_write_file(NULL, bio_err); |
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251 |
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252 if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL, passout)) |
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253 goto end; |
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254 ret=0; |
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255 end: |
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256 if (ret != 0) |
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257 ERR_print_errors(bio_err); |
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258 if (in != NULL) BIO_free(in); |
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259 if (out != NULL) BIO_free_all(out); |
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260 if (dsa != NULL) DSA_free(dsa); |
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261 if(passout) OPENSSL_free(passout); |
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262 apps_shutdown(); |
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263 OPENSSL_EXIT(ret); |
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264 } |
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265 #endif |