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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 #include <openssl/opensslconf.h> |
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60 #ifndef OPENSSL_NO_RSA |
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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/rsa.h> |
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69 #include <openssl/evp.h> |
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70 #include <openssl/x509.h> |
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71 #include <openssl/pem.h> |
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72 #include <openssl/bn.h> |
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73 |
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74 #undef PROG |
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75 #define PROG rsa_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 RSA key modulus |
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89 * -check - verify key consistency |
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90 * -pubin - Expect a public key in input file. |
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91 * -pubout - Output a public key. |
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92 */ |
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93 |
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94 |
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95 int MAIN(int, char **); |
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96 |
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97 int MAIN(int argc, char **argv) |
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98 { |
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99 ENGINE *e = NULL; |
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100 int ret=1; |
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101 RSA *rsa=NULL; |
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102 int i,badops=0, sgckey=0; |
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103 const EVP_CIPHER *enc=NULL; |
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104 BIO *out=NULL; |
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105 int informat,outformat,text=0,check=0,noout=0; |
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106 int pubin = 0, pubout = 0; |
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107 char *infile,*outfile,*prog; |
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108 char *passargin = NULL, *passargout = NULL; |
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109 char *passin = NULL, *passout = NULL; |
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110 #ifndef OPENSSL_NO_ENGINE |
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111 char *engine=NULL; |
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112 #endif |
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113 int modulus=0; |
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114 |
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115 apps_startup(); |
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116 |
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117 if (bio_err == NULL) |
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118 if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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119 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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120 if (!load_config(bio_err, NULL)) |
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121 goto end; |
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122 |
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123 infile=NULL; |
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124 outfile=NULL; |
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125 informat=FORMAT_PEM; |
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126 outformat=FORMAT_PEM; |
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127 |
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128 prog=argv[0]; |
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129 argc--; |
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130 argv++; |
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131 while (argc >= 1) |
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132 { |
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133 if (strcmp(*argv,"-inform") == 0) |
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134 { |
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135 if (--argc < 1) goto bad; |
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136 informat=str2fmt(*(++argv)); |
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137 } |
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138 else if (strcmp(*argv,"-outform") == 0) |
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139 { |
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140 if (--argc < 1) goto bad; |
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141 outformat=str2fmt(*(++argv)); |
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142 } |
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143 else if (strcmp(*argv,"-in") == 0) |
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144 { |
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145 if (--argc < 1) goto bad; |
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146 infile= *(++argv); |
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147 } |
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148 else if (strcmp(*argv,"-out") == 0) |
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149 { |
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150 if (--argc < 1) goto bad; |
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151 outfile= *(++argv); |
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152 } |
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153 else if (strcmp(*argv,"-passin") == 0) |
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154 { |
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155 if (--argc < 1) goto bad; |
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156 passargin= *(++argv); |
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157 } |
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158 else if (strcmp(*argv,"-passout") == 0) |
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159 { |
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160 if (--argc < 1) goto bad; |
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161 passargout= *(++argv); |
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162 } |
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163 #ifndef OPENSSL_NO_ENGINE |
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164 else if (strcmp(*argv,"-engine") == 0) |
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165 { |
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166 if (--argc < 1) goto bad; |
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167 engine= *(++argv); |
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168 } |
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169 #endif |
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170 else if (strcmp(*argv,"-sgckey") == 0) |
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171 sgckey=1; |
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172 else if (strcmp(*argv,"-pubin") == 0) |
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173 pubin=1; |
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174 else if (strcmp(*argv,"-pubout") == 0) |
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175 pubout=1; |
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176 else if (strcmp(*argv,"-noout") == 0) |
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177 noout=1; |
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178 else if (strcmp(*argv,"-text") == 0) |
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179 text=1; |
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180 else if (strcmp(*argv,"-modulus") == 0) |
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181 modulus=1; |
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182 else if (strcmp(*argv,"-check") == 0) |
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183 check=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 - one of DER NET PEM\n"); |
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200 BIO_printf(bio_err," -outform arg output format - one of DER NET 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," -sgckey Use IIS SGC key format\n"); |
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203 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); |
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204 BIO_printf(bio_err," -out arg output file\n"); |
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205 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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206 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); |
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207 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); |
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208 #ifndef OPENSSL_NO_IDEA |
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209 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); |
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210 #endif |
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211 #ifndef OPENSSL_NO_AES |
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212 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
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213 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
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214 #endif |
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215 BIO_printf(bio_err," -text print the key in text\n"); |
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216 BIO_printf(bio_err," -noout don't print key out\n"); |
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217 BIO_printf(bio_err," -modulus print the RSA key modulus\n"); |
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218 BIO_printf(bio_err," -check verify key consistency\n"); |
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219 BIO_printf(bio_err," -pubin expect a public key in input file\n"); |
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220 BIO_printf(bio_err," -pubout output a public key\n"); |
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221 #ifndef OPENSSL_NO_ENGINE |
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222 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); |
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223 #endif |
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224 goto end; |
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225 } |
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226 |
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227 ERR_load_crypto_strings(); |
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228 |
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229 #ifndef OPENSSL_NO_ENGINE |
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230 e = setup_engine(bio_err, engine, 0); |
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231 #endif |
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232 |
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233 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { |
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234 BIO_printf(bio_err, "Error getting passwords\n"); |
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235 goto end; |
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236 } |
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237 |
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238 if(check && pubin) { |
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239 BIO_printf(bio_err, "Only private keys can be checked\n"); |
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240 goto end; |
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241 } |
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242 |
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243 out=BIO_new(BIO_s_file()); |
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244 |
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245 { |
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246 EVP_PKEY *pkey; |
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247 |
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248 if (pubin) |
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249 pkey = load_pubkey(bio_err, infile, |
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250 (informat == FORMAT_NETSCAPE && sgckey ? |
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251 FORMAT_IISSGC : informat), 1, |
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252 passin, e, "Public Key"); |
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253 else |
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254 pkey = load_key(bio_err, infile, |
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255 (informat == FORMAT_NETSCAPE && sgckey ? |
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256 FORMAT_IISSGC : informat), 1, |
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257 passin, e, "Private Key"); |
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258 |
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259 if (pkey != NULL) |
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260 rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey); |
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261 EVP_PKEY_free(pkey); |
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262 } |
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263 |
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264 if (rsa == NULL) |
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265 { |
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266 ERR_print_errors(bio_err); |
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267 goto end; |
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268 } |
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269 |
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270 if (outfile == NULL) |
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271 { |
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272 BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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273 #ifdef OPENSSL_SYS_VMS |
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274 { |
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275 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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276 out = BIO_push(tmpbio, out); |
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277 } |
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278 #endif |
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279 } |
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280 else |
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281 { |
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282 if (BIO_write_filename(out,outfile) <= 0) |
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283 { |
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284 perror(outfile); |
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285 goto end; |
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286 } |
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287 } |
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288 |
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289 if (text) |
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290 if (!RSA_print(out,rsa,0)) |
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291 { |
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292 perror(outfile); |
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293 ERR_print_errors(bio_err); |
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294 goto end; |
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295 } |
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296 |
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297 if (modulus) |
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298 { |
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299 BIO_printf(out,"Modulus="); |
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300 BN_print(out,rsa->n); |
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301 BIO_printf(out,"\n"); |
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302 } |
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303 |
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304 if (check) |
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305 { |
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306 int r = RSA_check_key(rsa); |
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307 |
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308 if (r == 1) |
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309 BIO_printf(out,"RSA key ok\n"); |
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310 else if (r == 0) |
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311 { |
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312 unsigned long err; |
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313 |
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314 while ((err = ERR_peek_error()) != 0 && |
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315 ERR_GET_LIB(err) == ERR_LIB_RSA && |
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316 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && |
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317 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) |
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318 { |
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319 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); |
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320 ERR_get_error(); /* remove e from error stack */ |
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321 } |
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322 } |
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323 |
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324 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ |
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325 { |
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326 ERR_print_errors(bio_err); |
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327 goto end; |
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328 } |
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329 } |
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330 |
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331 if (noout) |
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332 { |
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333 ret = 0; |
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334 goto end; |
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335 } |
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336 BIO_printf(bio_err,"writing RSA key\n"); |
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337 if (outformat == FORMAT_ASN1) { |
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338 if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); |
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339 else i=i2d_RSAPrivateKey_bio(out,rsa); |
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340 } |
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341 #ifndef OPENSSL_NO_RC4 |
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342 else if (outformat == FORMAT_NETSCAPE) |
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343 { |
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344 unsigned char *p,*pp; |
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345 int size; |
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346 |
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347 i=1; |
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348 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); |
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349 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) |
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350 { |
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351 BIO_printf(bio_err,"Memory allocation failure\n"); |
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352 goto end; |
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353 } |
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354 pp=p; |
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355 i2d_RSA_NET(rsa,&p,NULL, sgckey); |
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356 BIO_write(out,(char *)pp,size); |
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357 OPENSSL_free(pp); |
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358 } |
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359 #endif |
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360 else if (outformat == FORMAT_PEM) { |
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361 if(pubout || pubin) |
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362 i=PEM_write_bio_RSA_PUBKEY(out,rsa); |
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363 else i=PEM_write_bio_RSAPrivateKey(out,rsa, |
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364 enc,NULL,0,NULL,passout); |
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365 } else { |
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366 BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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367 goto end; |
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368 } |
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369 if (!i) |
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370 { |
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371 BIO_printf(bio_err,"unable to write key\n"); |
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372 ERR_print_errors(bio_err); |
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373 } |
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374 else |
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375 ret=0; |
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376 end: |
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377 if(out != NULL) BIO_free_all(out); |
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378 if(rsa != NULL) RSA_free(rsa); |
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379 if(passin) OPENSSL_free(passin); |
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380 if(passout) OPENSSL_free(passout); |
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381 apps_shutdown(); |
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382 OPENSSL_EXIT(ret); |
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383 } |
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384 #else /* !OPENSSL_NO_RSA */ |
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385 |
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386 # if PEDANTIC |
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387 static void *dummy=&dummy; |
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388 # endif |
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389 |
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390 #endif |