1 | /* rsautl.c */ |
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2 | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL |
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3 | * project 2000. |
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4 | */ |
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5 | /* ==================================================================== |
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6 | * Copyright (c) 2000 The OpenSSL Project. All rights reserved. |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions |
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10 | * are met: |
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11 | * |
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12 | * 1. Redistributions of source code must retain the above copyright |
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13 | * notice, this list of conditions and the following disclaimer. |
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14 | * |
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15 | * 2. Redistributions in binary form must reproduce the above copyright |
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16 | * notice, this list of conditions and the following disclaimer in |
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17 | * the documentation and/or other materials provided with the |
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18 | * distribution. |
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19 | * |
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20 | * 3. All advertising materials mentioning features or use of this |
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21 | * software must display the following acknowledgment: |
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22 | * "This product includes software developed by the OpenSSL Project |
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23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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24 | * |
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25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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26 | * endorse or promote products derived from this software without |
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27 | * prior written permission. For written permission, please contact |
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28 | * licensing@OpenSSL.org. |
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29 | * |
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30 | * 5. Products derived from this software may not be called "OpenSSL" |
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31 | * nor may "OpenSSL" appear in their names without prior written |
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32 | * permission of the OpenSSL Project. |
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33 | * |
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34 | * 6. Redistributions of any form whatsoever must retain the following |
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35 | * acknowledgment: |
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36 | * "This product includes software developed by the OpenSSL Project |
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37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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38 | * |
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39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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50 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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51 | * ==================================================================== |
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52 | * |
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53 | * This product includes cryptographic software written by Eric Young |
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54 | * (eay@cryptsoft.com). This product includes software written by Tim |
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55 | * Hudson (tjh@cryptsoft.com). |
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56 | * |
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57 | */ |
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58 | #include "apps.h" |
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59 | #include <string.h> |
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60 | #include <openssl/err.h> |
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61 | #include <openssl/pem.h> |
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62 | |
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63 | #define RSA_SIGN 1 |
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64 | #define RSA_VERIFY 2 |
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65 | #define RSA_ENCRYPT 3 |
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66 | #define RSA_DECRYPT 4 |
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67 | |
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68 | #define KEY_PRIVKEY 1 |
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69 | #define KEY_PUBKEY 2 |
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70 | #define KEY_CERT 3 |
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71 | |
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72 | static void usage(void); |
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73 | |
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74 | #undef PROG |
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75 | |
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76 | #define PROG rsautl_main |
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77 | |
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78 | int MAIN(int argc, char **); |
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79 | |
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80 | int MAIN(int argc, char **argv) |
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81 | { |
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82 | BIO *in = NULL, *out = NULL; |
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83 | char *infile = NULL, *outfile = NULL; |
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84 | char *keyfile = NULL; |
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85 | char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; |
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86 | int keyform = FORMAT_PEM; |
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87 | char need_priv = 0, badarg = 0, rev = 0; |
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88 | char hexdump = 0, asn1parse = 0; |
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89 | X509 *x; |
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90 | EVP_PKEY *pkey = NULL; |
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91 | RSA *rsa = NULL; |
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92 | unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; |
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93 | int rsa_inlen, rsa_outlen = 0; |
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94 | int keysize; |
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95 | |
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96 | int ret = 1; |
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97 | |
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98 | argc--; |
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99 | argv++; |
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100 | |
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101 | if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); |
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102 | ERR_load_crypto_strings(); |
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103 | OpenSSL_add_all_algorithms(); |
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104 | pad = RSA_PKCS1_PADDING; |
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105 | |
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106 | while(argc >= 1) |
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107 | { |
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108 | if (!strcmp(*argv,"-in")) { |
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109 | if (--argc < 1) badarg = 1; |
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110 | infile= *(++argv); |
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111 | } else if (!strcmp(*argv,"-out")) { |
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112 | if (--argc < 1) badarg = 1; |
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113 | outfile= *(++argv); |
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114 | } else if(!strcmp(*argv, "-inkey")) { |
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115 | if (--argc < 1) badarg = 1; |
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116 | keyfile = *(++argv); |
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117 | } else if(!strcmp(*argv, "-pubin")) { |
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118 | key_type = KEY_PUBKEY; |
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119 | } else if(!strcmp(*argv, "-certin")) { |
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120 | key_type = KEY_CERT; |
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121 | } |
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122 | else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1; |
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123 | else if(!strcmp(*argv, "-hexdump")) hexdump = 1; |
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124 | else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING; |
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125 | else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING; |
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126 | else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING; |
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127 | else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING; |
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128 | else if(!strcmp(*argv, "-sign")) { |
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129 | rsa_mode = RSA_SIGN; |
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130 | need_priv = 1; |
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131 | } else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY; |
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132 | else if(!strcmp(*argv, "-rev")) rev = 1; |
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133 | else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT; |
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134 | else if(!strcmp(*argv, "-decrypt")) { |
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135 | rsa_mode = RSA_DECRYPT; |
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136 | need_priv = 1; |
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137 | } else badarg = 1; |
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138 | if(badarg) { |
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139 | usage(); |
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140 | goto end; |
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141 | } |
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142 | argc--; |
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143 | argv++; |
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144 | } |
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145 | |
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146 | if(need_priv && (key_type != KEY_PRIVKEY)) { |
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147 | BIO_printf(bio_err, "A private key is needed for this operation\n"); |
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148 | goto end; |
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149 | } |
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150 | |
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151 | /* FIXME: seed PRNG only if needed */ |
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152 | app_RAND_load_file(NULL, bio_err, 0); |
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153 | |
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154 | switch(key_type) { |
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155 | case KEY_PRIVKEY: |
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156 | pkey = load_key(bio_err, keyfile, keyform, NULL); |
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157 | break; |
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158 | |
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159 | case KEY_PUBKEY: |
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160 | pkey = load_pubkey(bio_err, keyfile, keyform); |
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161 | break; |
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162 | |
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163 | case KEY_CERT: |
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164 | x = load_cert(bio_err, keyfile, keyform); |
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165 | if(x) { |
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166 | pkey = X509_get_pubkey(x); |
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167 | X509_free(x); |
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168 | } |
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169 | break; |
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170 | } |
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171 | |
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172 | if(!pkey) { |
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173 | BIO_printf(bio_err, "Error loading key\n"); |
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174 | return 1; |
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175 | } |
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176 | |
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177 | rsa = EVP_PKEY_get1_RSA(pkey); |
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178 | EVP_PKEY_free(pkey); |
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179 | |
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180 | if(!rsa) { |
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181 | BIO_printf(bio_err, "Error getting RSA key\n"); |
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182 | ERR_print_errors(bio_err); |
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183 | goto end; |
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184 | } |
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185 | |
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186 | |
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187 | if(infile) { |
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188 | if(!(in = BIO_new_file(infile, "rb"))) { |
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189 | BIO_printf(bio_err, "Error Reading Input File\n"); |
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190 | ERR_print_errors(bio_err); |
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191 | goto end; |
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192 | } |
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193 | } else in = BIO_new_fp(stdin, BIO_NOCLOSE); |
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194 | |
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195 | if(outfile) { |
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196 | if(!(out = BIO_new_file(outfile, "wb"))) { |
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197 | BIO_printf(bio_err, "Error Reading Output File\n"); |
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198 | ERR_print_errors(bio_err); |
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199 | goto end; |
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200 | } |
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201 | } else { |
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202 | out = BIO_new_fp(stdout, BIO_NOCLOSE); |
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203 | #ifdef VMS |
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204 | { |
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205 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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206 | out = BIO_push(tmpbio, out); |
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207 | } |
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208 | #endif |
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209 | } |
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210 | |
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211 | keysize = RSA_size(rsa); |
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212 | |
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213 | rsa_in = OPENSSL_malloc(keysize * 2); |
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214 | rsa_out = OPENSSL_malloc(keysize); |
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215 | |
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216 | /* Read the input data */ |
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217 | rsa_inlen = BIO_read(in, rsa_in, keysize * 2); |
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218 | if(rsa_inlen <= 0) { |
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219 | BIO_printf(bio_err, "Error reading input Data\n"); |
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220 | exit(1); |
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221 | } |
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222 | if(rev) { |
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223 | int i; |
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224 | unsigned char ctmp; |
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225 | for(i = 0; i < rsa_inlen/2; i++) { |
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226 | ctmp = rsa_in[i]; |
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227 | rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; |
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228 | rsa_in[rsa_inlen - 1 - i] = ctmp; |
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229 | } |
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230 | } |
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231 | switch(rsa_mode) { |
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232 | |
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233 | case RSA_VERIFY: |
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234 | rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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235 | break; |
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236 | |
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237 | case RSA_SIGN: |
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238 | rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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239 | break; |
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240 | |
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241 | case RSA_ENCRYPT: |
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242 | rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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243 | break; |
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244 | |
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245 | case RSA_DECRYPT: |
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246 | rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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247 | break; |
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248 | |
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249 | } |
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250 | |
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251 | if(rsa_outlen <= 0) { |
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252 | BIO_printf(bio_err, "RSA operation error\n"); |
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253 | ERR_print_errors(bio_err); |
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254 | goto end; |
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255 | } |
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256 | ret = 0; |
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257 | if(asn1parse) { |
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258 | if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { |
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259 | ERR_print_errors(bio_err); |
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260 | } |
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261 | } else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen); |
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262 | else BIO_write(out, rsa_out, rsa_outlen); |
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263 | end: |
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264 | RSA_free(rsa); |
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265 | BIO_free(in); |
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266 | BIO_free_all(out); |
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267 | if(rsa_in) OPENSSL_free(rsa_in); |
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268 | if(rsa_out) OPENSSL_free(rsa_out); |
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269 | return ret; |
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270 | } |
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271 | |
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272 | static void usage() |
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273 | { |
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274 | BIO_printf(bio_err, "Usage: rsautl [options]\n"); |
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275 | BIO_printf(bio_err, "-in file input file\n"); |
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276 | BIO_printf(bio_err, "-out file output file\n"); |
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277 | BIO_printf(bio_err, "-inkey file input key\n"); |
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278 | BIO_printf(bio_err, "-pubin input is an RSA public\n"); |
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279 | BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n"); |
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280 | BIO_printf(bio_err, "-ssl use SSL v2 padding\n"); |
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281 | BIO_printf(bio_err, "-raw use no padding\n"); |
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282 | BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n"); |
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283 | BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n"); |
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284 | BIO_printf(bio_err, "-sign sign with private key\n"); |
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285 | BIO_printf(bio_err, "-verify verify with public key\n"); |
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286 | BIO_printf(bio_err, "-encrypt encrypt with public key\n"); |
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287 | BIO_printf(bio_err, "-decrypt decrypt with private key\n"); |
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288 | BIO_printf(bio_err, "-hexdump hex dump output\n"); |
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289 | } |
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290 | |
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