1 | /* apps/rsa.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 NO_RSA |
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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/rsa.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 rsa_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 | * -text - print a text version |
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83 | * -modulus - print the RSA key modulus |
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84 | * -check - verify key consistency |
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85 | * -pubin - Expect a public key in input file. |
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86 | * -pubout - Output a 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 | int ret=1; |
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94 | RSA *rsa=NULL; |
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95 | int i,badops=0, sgckey=0; |
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96 | const EVP_CIPHER *enc=NULL; |
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97 | BIO *in=NULL,*out=NULL; |
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98 | int informat,outformat,text=0,check=0,noout=0; |
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99 | int pubin = 0, pubout = 0; |
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100 | char *infile,*outfile,*prog; |
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101 | char *passargin = NULL, *passargout = NULL; |
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102 | char *passin = NULL, *passout = NULL; |
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103 | int modulus=0; |
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104 | |
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105 | apps_startup(); |
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106 | |
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107 | if (bio_err == NULL) |
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108 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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109 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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110 | |
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111 | infile=NULL; |
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112 | outfile=NULL; |
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113 | informat=FORMAT_PEM; |
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114 | outformat=FORMAT_PEM; |
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115 | |
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116 | prog=argv[0]; |
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117 | argc--; |
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118 | argv++; |
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119 | while (argc >= 1) |
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120 | { |
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121 | if (strcmp(*argv,"-inform") == 0) |
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122 | { |
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123 | if (--argc < 1) goto bad; |
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124 | informat=str2fmt(*(++argv)); |
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125 | } |
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126 | else if (strcmp(*argv,"-outform") == 0) |
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127 | { |
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128 | if (--argc < 1) goto bad; |
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129 | outformat=str2fmt(*(++argv)); |
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130 | } |
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131 | else if (strcmp(*argv,"-in") == 0) |
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132 | { |
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133 | if (--argc < 1) goto bad; |
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134 | infile= *(++argv); |
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135 | } |
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136 | else if (strcmp(*argv,"-out") == 0) |
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137 | { |
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138 | if (--argc < 1) goto bad; |
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139 | outfile= *(++argv); |
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140 | } |
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141 | else if (strcmp(*argv,"-passin") == 0) |
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142 | { |
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143 | if (--argc < 1) goto bad; |
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144 | passargin= *(++argv); |
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145 | } |
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146 | else if (strcmp(*argv,"-passout") == 0) |
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147 | { |
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148 | if (--argc < 1) goto bad; |
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149 | passargout= *(++argv); |
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150 | } |
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151 | else if (strcmp(*argv,"-sgckey") == 0) |
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152 | sgckey=1; |
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153 | else if (strcmp(*argv,"-pubin") == 0) |
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154 | pubin=1; |
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155 | else if (strcmp(*argv,"-pubout") == 0) |
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156 | pubout=1; |
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157 | else if (strcmp(*argv,"-noout") == 0) |
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158 | noout=1; |
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159 | else if (strcmp(*argv,"-text") == 0) |
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160 | text=1; |
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161 | else if (strcmp(*argv,"-modulus") == 0) |
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162 | modulus=1; |
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163 | else if (strcmp(*argv,"-check") == 0) |
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164 | check=1; |
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165 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
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166 | { |
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167 | BIO_printf(bio_err,"unknown option %s\n",*argv); |
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168 | badops=1; |
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169 | break; |
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170 | } |
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171 | argc--; |
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172 | argv++; |
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173 | } |
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174 | |
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175 | if (badops) |
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176 | { |
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177 | bad: |
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178 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); |
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179 | BIO_printf(bio_err,"where options are\n"); |
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180 | BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); |
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181 | BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); |
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182 | BIO_printf(bio_err," -in arg input file\n"); |
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183 | BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); |
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184 | BIO_printf(bio_err," -passin arg input file pass phrase source\n"); |
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185 | BIO_printf(bio_err," -out arg output file\n"); |
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186 | BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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187 | BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); |
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188 | BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); |
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189 | #ifndef NO_IDEA |
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190 | BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); |
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191 | #endif |
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192 | BIO_printf(bio_err," -text print the key in text\n"); |
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193 | BIO_printf(bio_err," -noout don't print key out\n"); |
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194 | BIO_printf(bio_err," -modulus print the RSA key modulus\n"); |
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195 | BIO_printf(bio_err," -check verify key consistency\n"); |
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196 | BIO_printf(bio_err," -pubin expect a public key in input file\n"); |
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197 | BIO_printf(bio_err," -pubout output a public key\n"); |
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198 | goto end; |
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199 | } |
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200 | |
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201 | ERR_load_crypto_strings(); |
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202 | |
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203 | if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { |
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204 | BIO_printf(bio_err, "Error getting passwords\n"); |
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205 | goto end; |
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206 | } |
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207 | |
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208 | if(check && pubin) { |
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209 | BIO_printf(bio_err, "Only private keys can be checked\n"); |
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210 | goto end; |
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211 | } |
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212 | |
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213 | in=BIO_new(BIO_s_file()); |
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214 | out=BIO_new(BIO_s_file()); |
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215 | if ((in == NULL) || (out == NULL)) |
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216 | { |
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217 | ERR_print_errors(bio_err); |
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218 | goto end; |
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219 | } |
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220 | |
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221 | if (infile == NULL) |
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222 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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223 | else |
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224 | { |
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225 | if (BIO_read_filename(in,infile) <= 0) |
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226 | { |
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227 | perror(infile); |
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228 | goto end; |
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229 | } |
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230 | } |
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231 | |
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232 | BIO_printf(bio_err,"read RSA key\n"); |
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233 | if (informat == FORMAT_ASN1) { |
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234 | if (pubin) rsa=d2i_RSA_PUBKEY_bio(in,NULL); |
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235 | else rsa=d2i_RSAPrivateKey_bio(in,NULL); |
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236 | } |
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237 | #ifndef NO_RC4 |
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238 | else if (informat == FORMAT_NETSCAPE) |
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239 | { |
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240 | BUF_MEM *buf=NULL; |
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241 | unsigned char *p; |
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242 | int size=0; |
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243 | |
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244 | buf=BUF_MEM_new(); |
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245 | for (;;) |
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246 | { |
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247 | if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10))) |
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248 | goto end; |
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249 | i=BIO_read(in,&(buf->data[size]),1024*10); |
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250 | size+=i; |
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251 | if (i == 0) break; |
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252 | if (i < 0) |
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253 | { |
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254 | perror("reading private key"); |
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255 | BUF_MEM_free(buf); |
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256 | goto end; |
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257 | } |
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258 | } |
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259 | p=(unsigned char *)buf->data; |
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260 | rsa=d2i_RSA_NET(NULL,&p,(long)size,NULL, sgckey); |
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261 | BUF_MEM_free(buf); |
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262 | } |
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263 | #endif |
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264 | else if (informat == FORMAT_PEM) { |
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265 | if(pubin) rsa=PEM_read_bio_RSA_PUBKEY(in,NULL,NULL,NULL); |
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266 | else rsa=PEM_read_bio_RSAPrivateKey(in,NULL, NULL,passin); |
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267 | } |
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268 | else |
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269 | { |
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270 | BIO_printf(bio_err,"bad input format specified for key\n"); |
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271 | goto end; |
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272 | } |
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273 | if (rsa == NULL) |
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274 | { |
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275 | BIO_printf(bio_err,"unable to load key\n"); |
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276 | ERR_print_errors(bio_err); |
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277 | goto end; |
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278 | } |
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279 | |
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280 | if (outfile == NULL) |
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281 | { |
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282 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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283 | #ifdef VMS |
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284 | { |
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285 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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286 | out = BIO_push(tmpbio, out); |
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287 | } |
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288 | #endif |
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289 | } |
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290 | else |
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291 | { |
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292 | if (BIO_write_filename(out,outfile) <= 0) |
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293 | { |
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294 | perror(outfile); |
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295 | goto end; |
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296 | } |
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297 | } |
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298 | |
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299 | if (text) |
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300 | if (!RSA_print(out,rsa,0)) |
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301 | { |
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302 | perror(outfile); |
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303 | ERR_print_errors(bio_err); |
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304 | goto end; |
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305 | } |
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306 | |
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307 | if (modulus) |
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308 | { |
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309 | BIO_printf(out,"Modulus="); |
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310 | BN_print(out,rsa->n); |
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311 | BIO_printf(out,"\n"); |
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312 | } |
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313 | |
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314 | if (check) |
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315 | { |
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316 | int r = RSA_check_key(rsa); |
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317 | |
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318 | if (r == 1) |
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319 | BIO_printf(out,"RSA key ok\n"); |
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320 | else if (r == 0) |
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321 | { |
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322 | long e; |
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323 | |
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324 | while ((e = ERR_peek_error()) != 0 && |
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325 | ERR_GET_LIB(e) == ERR_LIB_RSA && |
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326 | ERR_GET_FUNC(e) == RSA_F_RSA_CHECK_KEY && |
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327 | ERR_GET_REASON(e) != ERR_R_MALLOC_FAILURE) |
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328 | { |
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329 | BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(e)); |
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330 | ERR_get_error(); /* remove e from error stack */ |
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331 | } |
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332 | } |
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333 | |
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334 | if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ |
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335 | { |
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336 | ERR_print_errors(bio_err); |
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337 | goto end; |
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338 | } |
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339 | } |
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340 | |
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341 | if (noout) |
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342 | { |
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343 | ret = 0; |
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344 | goto end; |
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345 | } |
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346 | BIO_printf(bio_err,"writing RSA key\n"); |
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347 | if (outformat == FORMAT_ASN1) { |
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348 | if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); |
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349 | else i=i2d_RSAPrivateKey_bio(out,rsa); |
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350 | } |
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351 | #ifndef NO_RC4 |
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352 | else if (outformat == FORMAT_NETSCAPE) |
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353 | { |
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354 | unsigned char *p,*pp; |
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355 | int size; |
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356 | |
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357 | i=1; |
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358 | size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); |
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359 | if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) |
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360 | { |
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361 | BIO_printf(bio_err,"Memory allocation failure\n"); |
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362 | goto end; |
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363 | } |
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364 | pp=p; |
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365 | i2d_RSA_NET(rsa,&p,NULL, sgckey); |
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366 | BIO_write(out,(char *)pp,size); |
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367 | OPENSSL_free(pp); |
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368 | } |
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369 | #endif |
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370 | else if (outformat == FORMAT_PEM) { |
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371 | if(pubout || pubin) |
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372 | i=PEM_write_bio_RSA_PUBKEY(out,rsa); |
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373 | else i=PEM_write_bio_RSAPrivateKey(out,rsa, |
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374 | enc,NULL,0,NULL,passout); |
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375 | } else { |
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376 | BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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377 | goto end; |
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378 | } |
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379 | if (!i) |
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380 | { |
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381 | BIO_printf(bio_err,"unable to write key\n"); |
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382 | ERR_print_errors(bio_err); |
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383 | } |
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384 | else |
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385 | ret=0; |
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386 | end: |
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387 | if(in != NULL) BIO_free(in); |
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388 | if(out != NULL) BIO_free_all(out); |
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389 | if(rsa != NULL) RSA_free(rsa); |
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390 | if(passin) OPENSSL_free(passin); |
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391 | if(passout) OPENSSL_free(passout); |
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392 | EXIT(ret); |
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393 | } |
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394 | #else /* !NO_RSA */ |
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395 | |
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396 | # if PEDANTIC |
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397 | static void *dummy=&dummy; |
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398 | # endif |
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399 | |
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400 | #endif |
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