1 | /* apps/genrsa.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 | #ifndef OPENSSL_NO_RSA |
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60 | #include <stdio.h> |
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61 | #include <string.h> |
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62 | #include <sys/types.h> |
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63 | #include <sys/stat.h> |
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64 | #include "apps.h" |
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65 | #include <openssl/bio.h> |
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66 | #include <openssl/err.h> |
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67 | #include <openssl/bn.h> |
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68 | #include <openssl/rsa.h> |
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69 | #include <openssl/evp.h> |
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70 | #include <openssl/x509.h> |
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71 | #include <openssl/pem.h> |
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72 | #include <openssl/rand.h> |
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73 | |
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74 | #define DEFBITS 512 |
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75 | #undef PROG |
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76 | #define PROG genrsa_main |
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77 | |
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78 | static void MS_CALLBACK genrsa_cb(int p, int n, void *arg); |
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79 | |
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80 | int MAIN(int, char **); |
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81 | |
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82 | int MAIN(int argc, char **argv) |
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83 | { |
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84 | ENGINE *e = NULL; |
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85 | int ret=1; |
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86 | RSA *rsa=NULL; |
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87 | int i,num=DEFBITS; |
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88 | long l; |
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89 | const EVP_CIPHER *enc=NULL; |
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90 | unsigned long f4=RSA_F4; |
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91 | char *outfile=NULL; |
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92 | char *passargout = NULL, *passout = NULL; |
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93 | char *engine=NULL; |
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94 | char *inrand=NULL; |
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95 | BIO *out=NULL; |
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96 | |
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97 | apps_startup(); |
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98 | |
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99 | if (bio_err == NULL) |
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100 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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101 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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102 | |
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103 | if (!load_config(bio_err, NULL)) |
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104 | goto err; |
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105 | if ((out=BIO_new(BIO_s_file())) == NULL) |
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106 | { |
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107 | BIO_printf(bio_err,"unable to create BIO for output\n"); |
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108 | goto err; |
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109 | } |
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110 | |
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111 | argv++; |
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112 | argc--; |
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113 | for (;;) |
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114 | { |
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115 | if (argc <= 0) break; |
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116 | if (strcmp(*argv,"-out") == 0) |
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117 | { |
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118 | if (--argc < 1) goto bad; |
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119 | outfile= *(++argv); |
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120 | } |
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121 | else if (strcmp(*argv,"-3") == 0) |
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122 | f4=3; |
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123 | else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0) |
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124 | f4=RSA_F4; |
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125 | else if (strcmp(*argv,"-engine") == 0) |
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126 | { |
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127 | if (--argc < 1) goto bad; |
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128 | engine= *(++argv); |
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129 | } |
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130 | else if (strcmp(*argv,"-rand") == 0) |
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131 | { |
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132 | if (--argc < 1) goto bad; |
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133 | inrand= *(++argv); |
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134 | } |
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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 (strcmp(*argv,"-passout") == 0) |
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154 | { |
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155 | if (--argc < 1) goto bad; |
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156 | passargout= *(++argv); |
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157 | } |
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158 | else |
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159 | break; |
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160 | argv++; |
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161 | argc--; |
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162 | } |
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163 | if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0))) |
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164 | { |
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165 | bad: |
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166 | BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n"); |
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167 | BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n"); |
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168 | BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); |
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169 | #ifndef OPENSSL_NO_IDEA |
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170 | BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n"); |
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171 | #endif |
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172 | #ifndef OPENSSL_NO_AES |
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173 | BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
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174 | BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
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175 | #endif |
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176 | BIO_printf(bio_err," -out file output the key to 'file\n"); |
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177 | BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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178 | BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n"); |
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179 | BIO_printf(bio_err," -3 use 3 for the E value\n"); |
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180 | BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); |
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181 | BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); |
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182 | BIO_printf(bio_err," load the file (or the files in the directory) into\n"); |
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183 | BIO_printf(bio_err," the random number generator\n"); |
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184 | goto err; |
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185 | } |
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186 | |
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187 | ERR_load_crypto_strings(); |
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188 | |
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189 | if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { |
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190 | BIO_printf(bio_err, "Error getting password\n"); |
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191 | goto err; |
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192 | } |
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193 | |
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194 | e = setup_engine(bio_err, engine, 0); |
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195 | |
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196 | if (outfile == NULL) |
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197 | { |
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198 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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199 | #ifdef OPENSSL_SYS_VMS |
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200 | { |
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201 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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202 | out = BIO_push(tmpbio, out); |
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203 | } |
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204 | #endif |
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205 | } |
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206 | else |
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207 | { |
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208 | if (BIO_write_filename(out,outfile) <= 0) |
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209 | { |
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210 | perror(outfile); |
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211 | goto err; |
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212 | } |
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213 | } |
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214 | |
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215 | if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL |
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216 | && !RAND_status()) |
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217 | { |
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218 | BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); |
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219 | } |
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220 | if (inrand != NULL) |
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221 | BIO_printf(bio_err,"%ld semi-random bytes loaded\n", |
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222 | app_RAND_load_files(inrand)); |
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223 | |
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224 | BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n", |
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225 | num); |
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226 | rsa=RSA_generate_key(num,f4,genrsa_cb,bio_err); |
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227 | |
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228 | app_RAND_write_file(NULL, bio_err); |
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229 | |
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230 | if (rsa == NULL) goto err; |
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231 | |
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232 | /* We need to do the following for when the base number size is < |
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233 | * long, esp windows 3.1 :-(. */ |
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234 | l=0L; |
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235 | for (i=0; i<rsa->e->top; i++) |
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236 | { |
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237 | #ifndef SIXTY_FOUR_BIT |
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238 | l<<=BN_BITS4; |
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239 | l<<=BN_BITS4; |
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240 | #endif |
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241 | l+=rsa->e->d[i]; |
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242 | } |
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243 | BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l); |
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244 | { |
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245 | PW_CB_DATA cb_data; |
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246 | cb_data.password = passout; |
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247 | cb_data.prompt_info = outfile; |
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248 | if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0, |
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249 | (pem_password_cb *)password_callback,&cb_data)) |
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250 | goto err; |
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251 | } |
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252 | |
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253 | ret=0; |
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254 | err: |
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255 | if (rsa != NULL) RSA_free(rsa); |
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256 | if (out != NULL) BIO_free_all(out); |
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257 | if(passout) OPENSSL_free(passout); |
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258 | if (ret != 0) |
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259 | ERR_print_errors(bio_err); |
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260 | apps_shutdown(); |
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261 | OPENSSL_EXIT(ret); |
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262 | } |
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263 | |
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264 | static void MS_CALLBACK genrsa_cb(int p, int n, void *arg) |
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265 | { |
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266 | char c='*'; |
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267 | |
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268 | if (p == 0) c='.'; |
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269 | if (p == 1) c='+'; |
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270 | if (p == 2) c='*'; |
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271 | if (p == 3) c='\n'; |
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272 | BIO_write((BIO *)arg,&c,1); |
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273 | (void)BIO_flush((BIO *)arg); |
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274 | #ifdef LINT |
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275 | p=n; |
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276 | #endif |
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277 | } |
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278 | #else /* !OPENSSL_NO_RSA */ |
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279 | |
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280 | # if PEDANTIC |
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281 | static void *dummy=&dummy; |
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282 | # endif |
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283 | |
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284 | #endif |
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