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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 #include <openssl/opensslconf.h> |
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60 /* Until the key-gen callbacks are modified to use newer prototypes, we allow |
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61 * deprecated functions for openssl-internal code */ |
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62 #ifdef OPENSSL_NO_DEPRECATED |
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63 #undef OPENSSL_NO_DEPRECATED |
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64 #endif |
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65 |
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66 #ifndef OPENSSL_NO_RSA |
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67 #include <stdio.h> |
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68 #include <string.h> |
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69 #include <sys/types.h> |
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70 #include <sys/stat.h> |
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71 #include "apps.h" |
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72 #include <openssl/bio.h> |
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73 #include <openssl/err.h> |
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74 #include <openssl/bn.h> |
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75 #include <openssl/rsa.h> |
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76 #include <openssl/evp.h> |
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77 #include <openssl/x509.h> |
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78 #include <openssl/pem.h> |
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79 #include <openssl/rand.h> |
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80 |
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81 #define DEFBITS 512 |
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82 #undef PROG |
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83 #define PROG genrsa_main |
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84 |
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85 static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb); |
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86 |
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87 |
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88 int MAIN(int, char **); |
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89 |
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90 int MAIN(int argc, char **argv) |
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91 { |
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92 BN_GENCB cb; |
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93 #ifndef OPENSSL_NO_ENGINE |
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94 ENGINE *e = NULL; |
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95 #endif |
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96 int ret=1; |
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97 int i,num=DEFBITS; |
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98 long l; |
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99 const EVP_CIPHER *enc=NULL; |
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100 unsigned long f4=RSA_F4; |
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101 char *outfile=NULL; |
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102 char *passargout = NULL, *passout = NULL; |
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103 #ifndef OPENSSL_NO_ENGINE |
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104 char *engine=NULL; |
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105 #endif |
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106 char *inrand=NULL; |
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107 BIO *out=NULL; |
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108 BIGNUM *bn = BN_new(); |
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109 RSA *rsa = RSA_new(); |
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110 |
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111 if(!bn || !rsa) goto err; |
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112 |
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113 apps_startup(); |
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114 BN_GENCB_set(&cb, genrsa_cb, bio_err); |
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115 |
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116 if (bio_err == NULL) |
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117 if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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118 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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119 if (!load_config(bio_err, NULL)) |
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120 goto err; |
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121 if ((out=BIO_new(BIO_s_file())) == NULL) |
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122 { |
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123 BIO_printf(bio_err,"unable to create BIO for output\n"); |
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124 goto err; |
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125 } |
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126 |
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127 argv++; |
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128 argc--; |
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129 for (;;) |
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130 { |
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131 if (argc <= 0) break; |
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132 if (strcmp(*argv,"-out") == 0) |
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133 { |
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134 if (--argc < 1) goto bad; |
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135 outfile= *(++argv); |
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136 } |
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137 else if (strcmp(*argv,"-3") == 0) |
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138 f4=3; |
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139 else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0) |
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140 f4=RSA_F4; |
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141 #ifndef OPENSSL_NO_ENGINE |
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142 else if (strcmp(*argv,"-engine") == 0) |
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143 { |
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144 if (--argc < 1) goto bad; |
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145 engine= *(++argv); |
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146 } |
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147 #endif |
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148 else if (strcmp(*argv,"-rand") == 0) |
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149 { |
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150 if (--argc < 1) goto bad; |
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151 inrand= *(++argv); |
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152 } |
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153 #ifndef OPENSSL_NO_DES |
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154 else if (strcmp(*argv,"-des") == 0) |
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155 enc=EVP_des_cbc(); |
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156 else if (strcmp(*argv,"-des3") == 0) |
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157 enc=EVP_des_ede3_cbc(); |
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158 #endif |
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159 #ifndef OPENSSL_NO_IDEA |
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160 else if (strcmp(*argv,"-idea") == 0) |
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161 enc=EVP_idea_cbc(); |
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162 #endif |
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163 #ifndef OPENSSL_NO_AES |
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164 else if (strcmp(*argv,"-aes128") == 0) |
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165 enc=EVP_aes_128_cbc(); |
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166 else if (strcmp(*argv,"-aes192") == 0) |
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167 enc=EVP_aes_192_cbc(); |
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168 else if (strcmp(*argv,"-aes256") == 0) |
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169 enc=EVP_aes_256_cbc(); |
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170 #endif |
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171 else if (strcmp(*argv,"-passout") == 0) |
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172 { |
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173 if (--argc < 1) goto bad; |
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174 passargout= *(++argv); |
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175 } |
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176 else |
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177 break; |
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178 argv++; |
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179 argc--; |
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180 } |
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181 if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0))) |
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182 { |
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183 bad: |
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184 BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n"); |
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185 BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n"); |
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186 BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); |
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187 #ifndef OPENSSL_NO_IDEA |
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188 BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n"); |
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189 #endif |
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190 #ifndef OPENSSL_NO_AES |
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191 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
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192 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
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193 #endif |
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194 BIO_printf(bio_err," -out file output the key to 'file\n"); |
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195 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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196 BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n"); |
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197 BIO_printf(bio_err," -3 use 3 for the E value\n"); |
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198 #ifndef OPENSSL_NO_ENGINE |
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199 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); |
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200 #endif |
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201 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); |
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202 BIO_printf(bio_err," load the file (or the files in the directory) into\n"); |
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203 BIO_printf(bio_err," the random number generator\n"); |
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204 goto err; |
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205 } |
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206 |
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207 ERR_load_crypto_strings(); |
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208 |
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209 if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { |
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210 BIO_printf(bio_err, "Error getting password\n"); |
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211 goto err; |
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212 } |
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213 |
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214 #ifndef OPENSSL_NO_ENGINE |
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215 e = setup_engine(bio_err, engine, 0); |
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216 #endif |
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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 err; |
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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 && !RAND_status()) |
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240 { |
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241 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); |
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242 } |
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243 if (inrand != NULL) |
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244 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", |
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245 app_RAND_load_files(inrand)); |
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246 |
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247 BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n", |
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248 num); |
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249 |
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250 if(!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb)) |
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251 goto err; |
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252 |
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253 app_RAND_write_file(NULL, bio_err); |
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254 |
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255 /* We need to do the following for when the base number size is < |
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256 * long, esp windows 3.1 :-(. */ |
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257 l=0L; |
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258 for (i=0; i<rsa->e->top; i++) |
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259 { |
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260 #ifndef SIXTY_FOUR_BIT |
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261 l<<=BN_BITS4; |
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262 l<<=BN_BITS4; |
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263 #endif |
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264 l+=rsa->e->d[i]; |
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265 } |
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266 BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l); |
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267 { |
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268 PW_CB_DATA cb_data; |
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269 cb_data.password = passout; |
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270 cb_data.prompt_info = outfile; |
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271 if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0, |
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272 (pem_password_cb *)password_callback,&cb_data)) |
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273 goto err; |
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274 } |
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275 |
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276 ret=0; |
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277 err: |
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278 if (bn) BN_free(bn); |
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279 if (rsa) RSA_free(rsa); |
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280 if (out) BIO_free_all(out); |
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281 if(passout) OPENSSL_free(passout); |
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282 if (ret != 0) |
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283 ERR_print_errors(bio_err); |
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284 apps_shutdown(); |
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285 OPENSSL_EXIT(ret); |
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286 } |
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287 |
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288 static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb) |
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289 { |
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290 char c='*'; |
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291 |
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292 if (p == 0) c='.'; |
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293 if (p == 1) c='+'; |
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294 if (p == 2) c='*'; |
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295 if (p == 3) c='\n'; |
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296 BIO_write(cb->arg,&c,1); |
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297 (void)BIO_flush(cb->arg); |
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298 #ifdef LINT |
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299 p=n; |
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300 #endif |
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301 return 1; |
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302 } |
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303 #else /* !OPENSSL_NO_RSA */ |
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304 |
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305 # if PEDANTIC |
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306 static void *dummy=&dummy; |
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307 # endif |
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308 |
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309 #endif |