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 | #ifndef OPENSSL_NO_DSA |
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60 | #include <stdio.h> |
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61 | #include <stdlib.h> |
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62 | #include <string.h> |
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63 | #include <time.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/dsa.h> |
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68 | #include <openssl/evp.h> |
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69 | #include <openssl/x509.h> |
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70 | #include <openssl/pem.h> |
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71 | |
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72 | #undef PROG |
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73 | #define PROG dsa_main |
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74 | |
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75 | /* -inform arg - input format - default PEM (one of DER, NET or PEM) |
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76 | * -outform arg - output format - default PEM |
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77 | * -in arg - input file - default stdin |
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78 | * -out arg - output file - default stdout |
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79 | * -des - encrypt output if PEM format with DES in cbc mode |
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80 | * -des3 - encrypt output if PEM format |
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81 | * -idea - encrypt output if PEM format |
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82 | * -aes128 - encrypt output if PEM format |
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83 | * -aes192 - encrypt output if PEM format |
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84 | * -aes256 - encrypt output if PEM format |
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85 | * -text - print a text version |
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86 | * -modulus - print the DSA public key |
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87 | */ |
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88 | |
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89 | int MAIN(int, char **); |
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90 | |
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91 | int MAIN(int argc, char **argv) |
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92 | { |
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93 | ENGINE *e = NULL; |
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94 | int ret=1; |
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95 | DSA *dsa=NULL; |
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96 | int i,badops=0; |
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97 | const EVP_CIPHER *enc=NULL; |
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98 | BIO *in=NULL,*out=NULL; |
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99 | int informat,outformat,text=0,noout=0; |
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100 | int pubin = 0, pubout = 0; |
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101 | char *infile,*outfile,*prog,*engine; |
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102 | char *passargin = NULL, *passargout = NULL; |
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103 | char *passin = NULL, *passout = NULL; |
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104 | int modulus=0; |
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105 | |
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106 | apps_startup(); |
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107 | |
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108 | if (bio_err == NULL) |
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109 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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110 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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111 | |
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112 | if (!load_config(bio_err, NULL)) |
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113 | goto end; |
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114 | |
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115 | engine=NULL; |
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116 | infile=NULL; |
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117 | outfile=NULL; |
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118 | informat=FORMAT_PEM; |
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119 | outformat=FORMAT_PEM; |
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120 | |
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121 | prog=argv[0]; |
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122 | argc--; |
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123 | argv++; |
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124 | while (argc >= 1) |
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125 | { |
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126 | if (strcmp(*argv,"-inform") == 0) |
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127 | { |
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128 | if (--argc < 1) goto bad; |
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129 | informat=str2fmt(*(++argv)); |
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130 | } |
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131 | else if (strcmp(*argv,"-outform") == 0) |
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132 | { |
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133 | if (--argc < 1) goto bad; |
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134 | outformat=str2fmt(*(++argv)); |
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135 | } |
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136 | else if (strcmp(*argv,"-in") == 0) |
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137 | { |
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138 | if (--argc < 1) goto bad; |
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139 | infile= *(++argv); |
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140 | } |
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141 | else if (strcmp(*argv,"-out") == 0) |
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142 | { |
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143 | if (--argc < 1) goto bad; |
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144 | outfile= *(++argv); |
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145 | } |
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146 | else if (strcmp(*argv,"-passin") == 0) |
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147 | { |
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148 | if (--argc < 1) goto bad; |
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149 | passargin= *(++argv); |
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150 | } |
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151 | else if (strcmp(*argv,"-passout") == 0) |
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152 | { |
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153 | if (--argc < 1) goto bad; |
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154 | passargout= *(++argv); |
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155 | } |
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156 | else if (strcmp(*argv,"-engine") == 0) |
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157 | { |
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158 | if (--argc < 1) goto bad; |
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159 | engine= *(++argv); |
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160 | } |
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161 | else if (strcmp(*argv,"-noout") == 0) |
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162 | noout=1; |
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163 | else if (strcmp(*argv,"-text") == 0) |
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164 | text=1; |
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165 | else if (strcmp(*argv,"-modulus") == 0) |
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166 | modulus=1; |
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167 | else if (strcmp(*argv,"-pubin") == 0) |
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168 | pubin=1; |
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169 | else if (strcmp(*argv,"-pubout") == 0) |
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170 | pubout=1; |
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171 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
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172 | { |
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173 | BIO_printf(bio_err,"unknown option %s\n",*argv); |
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174 | badops=1; |
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175 | break; |
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176 | } |
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177 | argc--; |
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178 | argv++; |
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179 | } |
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180 | |
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181 | if (badops) |
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182 | { |
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183 | bad: |
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184 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); |
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185 | BIO_printf(bio_err,"where options are\n"); |
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186 | BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); |
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187 | BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); |
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188 | BIO_printf(bio_err," -in arg input file\n"); |
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189 | BIO_printf(bio_err," -passin arg input file pass phrase source\n"); |
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190 | BIO_printf(bio_err," -out arg output file\n"); |
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191 | BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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192 | BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); |
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193 | BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); |
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194 | BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); |
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195 | #ifndef OPENSSL_NO_IDEA |
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196 | BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); |
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197 | #endif |
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198 | #ifndef OPENSSL_NO_AES |
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199 | BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
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200 | BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
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201 | #endif |
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202 | BIO_printf(bio_err," -text print the key in text\n"); |
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203 | BIO_printf(bio_err," -noout don't print key out\n"); |
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204 | BIO_printf(bio_err," -modulus print the DSA public value\n"); |
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205 | goto end; |
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206 | } |
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207 | |
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208 | ERR_load_crypto_strings(); |
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209 | |
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210 | e = setup_engine(bio_err, engine, 0); |
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211 | |
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212 | if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { |
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213 | BIO_printf(bio_err, "Error getting passwords\n"); |
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214 | goto end; |
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215 | } |
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216 | |
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217 | in=BIO_new(BIO_s_file()); |
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218 | out=BIO_new(BIO_s_file()); |
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219 | if ((in == NULL) || (out == NULL)) |
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220 | { |
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221 | ERR_print_errors(bio_err); |
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222 | goto end; |
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223 | } |
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224 | |
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225 | if (infile == NULL) |
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226 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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227 | else |
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228 | { |
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229 | if (BIO_read_filename(in,infile) <= 0) |
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230 | { |
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231 | perror(infile); |
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232 | goto end; |
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233 | } |
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234 | } |
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235 | |
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236 | BIO_printf(bio_err,"read DSA key\n"); |
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237 | if (informat == FORMAT_ASN1) { |
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238 | if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL); |
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239 | else dsa=d2i_DSAPrivateKey_bio(in,NULL); |
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240 | } else if (informat == FORMAT_PEM) { |
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241 | if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL); |
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242 | else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin); |
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243 | } else |
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244 | { |
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245 | BIO_printf(bio_err,"bad input format specified for key\n"); |
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246 | goto end; |
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247 | } |
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248 | if (dsa == NULL) |
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249 | { |
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250 | BIO_printf(bio_err,"unable to load Key\n"); |
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251 | ERR_print_errors(bio_err); |
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252 | goto end; |
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253 | } |
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254 | |
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255 | if (outfile == NULL) |
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256 | { |
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257 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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258 | #ifdef OPENSSL_SYS_VMS |
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259 | { |
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260 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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261 | out = BIO_push(tmpbio, out); |
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262 | } |
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263 | #endif |
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264 | } |
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265 | else |
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266 | { |
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267 | if (BIO_write_filename(out,outfile) <= 0) |
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268 | { |
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269 | perror(outfile); |
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270 | goto end; |
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271 | } |
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272 | } |
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273 | |
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274 | if (text) |
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275 | if (!DSA_print(out,dsa,0)) |
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276 | { |
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277 | perror(outfile); |
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278 | ERR_print_errors(bio_err); |
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279 | goto end; |
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280 | } |
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281 | |
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282 | if (modulus) |
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283 | { |
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284 | fprintf(stdout,"Public Key="); |
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285 | BN_print(out,dsa->pub_key); |
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286 | fprintf(stdout,"\n"); |
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287 | } |
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288 | |
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289 | if (noout) goto end; |
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290 | BIO_printf(bio_err,"writing DSA key\n"); |
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291 | if (outformat == FORMAT_ASN1) { |
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292 | if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); |
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293 | else i=i2d_DSAPrivateKey_bio(out,dsa); |
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294 | } else if (outformat == FORMAT_PEM) { |
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295 | if(pubin || pubout) |
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296 | i=PEM_write_bio_DSA_PUBKEY(out,dsa); |
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297 | else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, |
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298 | NULL,0,NULL, passout); |
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299 | } else { |
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300 | BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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301 | goto end; |
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302 | } |
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303 | if (!i) |
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304 | { |
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305 | BIO_printf(bio_err,"unable to write private key\n"); |
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306 | ERR_print_errors(bio_err); |
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307 | } |
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308 | else |
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309 | ret=0; |
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310 | end: |
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311 | if(in != NULL) BIO_free(in); |
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312 | if(out != NULL) BIO_free_all(out); |
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313 | if(dsa != NULL) DSA_free(dsa); |
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314 | if(passin) OPENSSL_free(passin); |
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315 | if(passout) OPENSSL_free(passout); |
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316 | apps_shutdown(); |
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317 | OPENSSL_EXIT(ret); |
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318 | } |
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319 | #endif |
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