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1 /* apps/dsa.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 <stdlib.h> |
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63 #include <string.h> |
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64 #include <time.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/dsa.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/bn.h> |
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73 |
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74 #undef PROG |
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75 #define PROG dsa_main |
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76 |
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77 /* -inform arg - input format - default PEM (one of DER, NET or PEM) |
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78 * -outform arg - output format - default PEM |
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79 * -in arg - input file - default stdin |
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80 * -out arg - output file - default stdout |
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81 * -des - encrypt output if PEM format with DES in cbc mode |
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82 * -des3 - encrypt output if PEM format |
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83 * -idea - encrypt output if PEM format |
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84 * -aes128 - encrypt output if PEM format |
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85 * -aes192 - encrypt output if PEM format |
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86 * -aes256 - encrypt output if PEM format |
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87 * -text - print a text version |
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88 * -modulus - print the DSA public key |
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89 */ |
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90 |
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91 |
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92 int MAIN(int, char **); |
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93 |
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94 int MAIN(int argc, char **argv) |
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95 { |
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96 #ifndef OPENSSL_NO_ENGINE |
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97 ENGINE *e = NULL; |
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98 #endif |
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99 int ret=1; |
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100 DSA *dsa=NULL; |
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101 int i,badops=0; |
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102 const EVP_CIPHER *enc=NULL; |
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103 BIO *in=NULL,*out=NULL; |
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104 int informat,outformat,text=0,noout=0; |
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105 int pubin = 0, pubout = 0; |
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106 char *infile,*outfile,*prog; |
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107 #ifndef OPENSSL_NO_ENGINE |
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108 char *engine; |
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109 #endif |
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110 char *passargin = NULL, *passargout = NULL; |
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111 char *passin = NULL, *passout = NULL; |
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112 int modulus=0; |
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113 |
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114 apps_startup(); |
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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 |
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120 |
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121 if (!load_config(bio_err, NULL)) |
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122 goto end; |
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123 |
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124 #ifndef OPENSSL_NO_ENGINE |
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125 engine=NULL; |
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126 #endif |
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127 infile=NULL; |
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128 outfile=NULL; |
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129 informat=FORMAT_PEM; |
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130 outformat=FORMAT_PEM; |
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131 |
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132 prog=argv[0]; |
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133 argc--; |
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134 argv++; |
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135 while (argc >= 1) |
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136 { |
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137 if (strcmp(*argv,"-inform") == 0) |
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138 { |
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139 if (--argc < 1) goto bad; |
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140 informat=str2fmt(*(++argv)); |
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141 } |
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142 else if (strcmp(*argv,"-outform") == 0) |
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143 { |
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144 if (--argc < 1) goto bad; |
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145 outformat=str2fmt(*(++argv)); |
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146 } |
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147 else if (strcmp(*argv,"-in") == 0) |
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148 { |
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149 if (--argc < 1) goto bad; |
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150 infile= *(++argv); |
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151 } |
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152 else if (strcmp(*argv,"-out") == 0) |
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153 { |
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154 if (--argc < 1) goto bad; |
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155 outfile= *(++argv); |
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156 } |
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157 else if (strcmp(*argv,"-passin") == 0) |
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158 { |
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159 if (--argc < 1) goto bad; |
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160 passargin= *(++argv); |
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161 } |
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162 else if (strcmp(*argv,"-passout") == 0) |
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163 { |
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164 if (--argc < 1) goto bad; |
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165 passargout= *(++argv); |
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166 } |
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167 #ifndef OPENSSL_NO_ENGINE |
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168 else if (strcmp(*argv,"-engine") == 0) |
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169 { |
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170 if (--argc < 1) goto bad; |
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171 engine= *(++argv); |
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172 } |
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173 #endif |
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174 else if (strcmp(*argv,"-noout") == 0) |
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175 noout=1; |
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176 else if (strcmp(*argv,"-text") == 0) |
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177 text=1; |
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178 else if (strcmp(*argv,"-modulus") == 0) |
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179 modulus=1; |
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180 else if (strcmp(*argv,"-pubin") == 0) |
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181 pubin=1; |
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182 else if (strcmp(*argv,"-pubout") == 0) |
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183 pubout=1; |
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184 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
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185 { |
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186 BIO_printf(bio_err,"unknown option %s\n",*argv); |
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187 badops=1; |
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188 break; |
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189 } |
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190 argc--; |
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191 argv++; |
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192 } |
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193 |
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194 if (badops) |
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195 { |
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196 bad: |
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197 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); |
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198 BIO_printf(bio_err,"where options are\n"); |
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199 BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); |
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200 BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); |
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201 BIO_printf(bio_err," -in arg input file\n"); |
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202 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); |
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203 BIO_printf(bio_err," -out arg output file\n"); |
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204 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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205 #ifndef OPENSSL_NO_ENGINE |
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206 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); |
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207 #endif |
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208 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); |
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209 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); |
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210 #ifndef OPENSSL_NO_IDEA |
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211 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); |
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212 #endif |
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213 #ifndef OPENSSL_NO_AES |
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214 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
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215 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
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216 #endif |
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217 BIO_printf(bio_err," -text print the key in text\n"); |
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218 BIO_printf(bio_err," -noout don't print key out\n"); |
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219 BIO_printf(bio_err," -modulus print the DSA public value\n"); |
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220 goto end; |
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221 } |
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222 |
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223 ERR_load_crypto_strings(); |
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224 |
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225 #ifndef OPENSSL_NO_ENGINE |
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226 e = setup_engine(bio_err, engine, 0); |
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227 #endif |
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228 |
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229 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { |
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230 BIO_printf(bio_err, "Error getting passwords\n"); |
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231 goto end; |
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232 } |
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233 |
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234 in=BIO_new(BIO_s_file()); |
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235 out=BIO_new(BIO_s_file()); |
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236 if ((in == NULL) || (out == NULL)) |
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237 { |
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238 ERR_print_errors(bio_err); |
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239 goto end; |
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240 } |
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241 |
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242 if (infile == NULL) |
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243 BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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244 |
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245 else |
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246 { |
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247 if (BIO_read_filename(in,infile) <= 0) |
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248 { |
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249 perror(infile); |
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250 goto end; |
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251 } |
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252 } |
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253 |
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254 BIO_printf(bio_err,"read DSA key\n"); |
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255 if (informat == FORMAT_ASN1) { |
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256 if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL); |
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257 else dsa=d2i_DSAPrivateKey_bio(in,NULL); |
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258 } else if (informat == FORMAT_PEM) { |
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259 if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL); |
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260 else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin); |
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261 } else |
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262 { |
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263 BIO_printf(bio_err,"bad input format specified for key\n"); |
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264 goto end; |
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265 } |
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266 if (dsa == NULL) |
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267 { |
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268 BIO_printf(bio_err,"unable to load Key\n"); |
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269 ERR_print_errors(bio_err); |
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270 goto end; |
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271 } |
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272 |
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273 if (outfile == NULL) |
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274 { |
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275 BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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276 |
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277 #ifdef OPENSSL_SYS_VMS |
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278 { |
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279 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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280 out = BIO_push(tmpbio, out); |
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281 } |
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282 #endif |
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283 } |
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284 else |
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285 { |
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286 if (BIO_write_filename(out,outfile) <= 0) |
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287 { |
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288 perror(outfile); |
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289 goto end; |
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290 } |
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291 } |
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292 |
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293 if (text) |
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294 if (!DSA_print(out,dsa,0)) |
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295 { |
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296 perror(outfile); |
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297 ERR_print_errors(bio_err); |
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298 goto end; |
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299 } |
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300 |
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301 if (modulus) |
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302 { |
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303 fprintf(stdout,"Public Key="); |
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304 BN_print(out,dsa->pub_key); |
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305 fprintf(stdout,"\n"); |
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306 } |
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307 |
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308 if (noout) goto end; |
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309 BIO_printf(bio_err,"writing DSA key\n"); |
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310 if (outformat == FORMAT_ASN1) { |
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311 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); |
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312 else i=i2d_DSAPrivateKey_bio(out,dsa); |
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313 } else if (outformat == FORMAT_PEM) { |
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314 if(pubin || pubout) |
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315 i=PEM_write_bio_DSA_PUBKEY(out,dsa); |
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316 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, |
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317 NULL,0,NULL, passout); |
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318 } else { |
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319 BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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320 goto end; |
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321 } |
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322 if (!i) |
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323 { |
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324 BIO_printf(bio_err,"unable to write private key\n"); |
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325 ERR_print_errors(bio_err); |
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326 } |
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327 else |
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328 ret=0; |
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329 end: |
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330 if(in != NULL) BIO_free(in); |
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331 if(out != NULL) BIO_free_all(out); |
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332 if(dsa != NULL) DSA_free(dsa); |
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333 if(passin) OPENSSL_free(passin); |
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334 if(passout) OPENSSL_free(passout); |
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335 apps_shutdown(); |
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336 OPENSSL_EXIT(ret); |
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337 } |
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338 #endif |