1 | /* apps/dgst.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 <stdio.h> |
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60 | #include <string.h> |
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61 | #include <stdlib.h> |
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62 | #include "apps.h" |
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63 | #include <openssl/bio.h> |
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64 | #include <openssl/err.h> |
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65 | #include <openssl/evp.h> |
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66 | #include <openssl/objects.h> |
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67 | #include <openssl/x509.h> |
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68 | #include <openssl/pem.h> |
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69 | |
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70 | #undef BUFSIZE |
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71 | #define BUFSIZE 1024*8 |
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72 | |
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73 | #undef PROG |
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74 | #define PROG dgst_main |
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75 | |
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76 | int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, |
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77 | EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title, |
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78 | const char *file); |
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79 | |
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80 | int MAIN(int, char **); |
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81 | |
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82 | int MAIN(int argc, char **argv) |
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83 | { |
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84 | ENGINE *e = NULL; |
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85 | unsigned char *buf=NULL; |
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86 | int i,err=0; |
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87 | const EVP_MD *md=NULL,*m; |
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88 | BIO *in=NULL,*inp; |
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89 | BIO *bmd=NULL; |
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90 | BIO *out = NULL; |
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91 | const char *name; |
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92 | #define PROG_NAME_SIZE 39 |
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93 | char pname[PROG_NAME_SIZE+1]; |
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94 | int separator=0; |
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95 | int debug=0; |
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96 | int keyform=FORMAT_PEM; |
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97 | const char *outfile = NULL, *keyfile = NULL; |
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98 | const char *sigfile = NULL, *randfile = NULL; |
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99 | int out_bin = -1, want_pub = 0, do_verify = 0; |
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100 | EVP_PKEY *sigkey = NULL; |
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101 | unsigned char *sigbuf = NULL; |
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102 | int siglen = 0; |
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103 | char *engine=NULL; |
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104 | |
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105 | apps_startup(); |
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106 | |
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107 | if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) |
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108 | { |
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109 | BIO_printf(bio_err,"out of memory\n"); |
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110 | goto end; |
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111 | } |
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112 | if (bio_err == NULL) |
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113 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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114 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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115 | |
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116 | if (!load_config(bio_err, NULL)) |
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117 | goto end; |
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118 | |
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119 | /* first check the program name */ |
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120 | program_name(argv[0],pname,sizeof pname); |
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121 | |
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122 | md=EVP_get_digestbyname(pname); |
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123 | |
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124 | argc--; |
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125 | argv++; |
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126 | while (argc > 0) |
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127 | { |
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128 | if ((*argv)[0] != '-') break; |
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129 | if (strcmp(*argv,"-c") == 0) |
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130 | separator=1; |
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131 | else if (strcmp(*argv,"-rand") == 0) |
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132 | { |
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133 | if (--argc < 1) break; |
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134 | randfile=*(++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) break; |
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139 | outfile=*(++argv); |
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140 | } |
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141 | else if (strcmp(*argv,"-sign") == 0) |
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142 | { |
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143 | if (--argc < 1) break; |
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144 | keyfile=*(++argv); |
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145 | } |
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146 | else if (strcmp(*argv,"-verify") == 0) |
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147 | { |
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148 | if (--argc < 1) break; |
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149 | keyfile=*(++argv); |
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150 | want_pub = 1; |
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151 | do_verify = 1; |
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152 | } |
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153 | else if (strcmp(*argv,"-prverify") == 0) |
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154 | { |
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155 | if (--argc < 1) break; |
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156 | keyfile=*(++argv); |
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157 | do_verify = 1; |
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158 | } |
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159 | else if (strcmp(*argv,"-signature") == 0) |
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160 | { |
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161 | if (--argc < 1) break; |
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162 | sigfile=*(++argv); |
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163 | } |
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164 | else if (strcmp(*argv,"-keyform") == 0) |
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165 | { |
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166 | if (--argc < 1) break; |
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167 | keyform=str2fmt(*(++argv)); |
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168 | } |
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169 | else if (strcmp(*argv,"-engine") == 0) |
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170 | { |
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171 | if (--argc < 1) break; |
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172 | engine= *(++argv); |
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173 | } |
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174 | else if (strcmp(*argv,"-hex") == 0) |
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175 | out_bin = 0; |
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176 | else if (strcmp(*argv,"-binary") == 0) |
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177 | out_bin = 1; |
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178 | else if (strcmp(*argv,"-d") == 0) |
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179 | debug=1; |
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180 | else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL) |
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181 | md=m; |
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182 | else |
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183 | break; |
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184 | argc--; |
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185 | argv++; |
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186 | } |
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187 | |
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188 | if (md == NULL) |
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189 | md=EVP_md5(); |
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190 | |
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191 | if(do_verify && !sigfile) { |
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192 | BIO_printf(bio_err, "No signature to verify: use the -signature option\n"); |
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193 | err = 1; |
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194 | goto end; |
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195 | } |
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196 | |
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197 | if ((argc > 0) && (argv[0][0] == '-')) /* bad option */ |
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198 | { |
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199 | BIO_printf(bio_err,"unknown option '%s'\n",*argv); |
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200 | BIO_printf(bio_err,"options are\n"); |
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201 | BIO_printf(bio_err,"-c to output the digest with separating colons\n"); |
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202 | BIO_printf(bio_err,"-d to output debug info\n"); |
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203 | BIO_printf(bio_err,"-hex output as hex dump\n"); |
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204 | BIO_printf(bio_err,"-binary output in binary form\n"); |
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205 | BIO_printf(bio_err,"-sign file sign digest using private key in file\n"); |
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206 | BIO_printf(bio_err,"-verify file verify a signature using public key in file\n"); |
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207 | BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n"); |
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208 | BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n"); |
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209 | BIO_printf(bio_err,"-signature file signature to verify\n"); |
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210 | BIO_printf(bio_err,"-binary output in binary form\n"); |
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211 | BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n"); |
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212 | |
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213 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n", |
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214 | LN_md5,LN_md5); |
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215 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", |
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216 | LN_md4,LN_md4); |
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217 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", |
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218 | LN_md2,LN_md2); |
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219 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", |
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220 | LN_sha1,LN_sha1); |
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221 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", |
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222 | LN_sha,LN_sha); |
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223 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", |
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224 | LN_mdc2,LN_mdc2); |
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225 | BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", |
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226 | LN_ripemd160,LN_ripemd160); |
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227 | err=1; |
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228 | goto end; |
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229 | } |
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230 | |
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231 | e = setup_engine(bio_err, engine, 0); |
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232 | |
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233 | in=BIO_new(BIO_s_file()); |
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234 | bmd=BIO_new(BIO_f_md()); |
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235 | if (debug) |
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236 | { |
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237 | BIO_set_callback(in,BIO_debug_callback); |
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238 | /* needed for windows 3.1 */ |
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239 | BIO_set_callback_arg(in,bio_err); |
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240 | } |
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241 | |
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242 | if ((in == NULL) || (bmd == NULL)) |
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243 | { |
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244 | ERR_print_errors(bio_err); |
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245 | goto end; |
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246 | } |
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247 | |
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248 | if(out_bin == -1) { |
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249 | if(keyfile) out_bin = 1; |
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250 | else out_bin = 0; |
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251 | } |
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252 | |
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253 | if(randfile) |
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254 | app_RAND_load_file(randfile, bio_err, 0); |
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255 | |
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256 | if(outfile) { |
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257 | if(out_bin) |
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258 | out = BIO_new_file(outfile, "wb"); |
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259 | else out = BIO_new_file(outfile, "w"); |
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260 | } else { |
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261 | out = BIO_new_fp(stdout, BIO_NOCLOSE); |
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262 | #ifdef OPENSSL_SYS_VMS |
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263 | { |
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264 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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265 | out = BIO_push(tmpbio, out); |
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266 | } |
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267 | #endif |
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268 | } |
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269 | |
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270 | if(!out) { |
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271 | BIO_printf(bio_err, "Error opening output file %s\n", |
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272 | outfile ? outfile : "(stdout)"); |
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273 | ERR_print_errors(bio_err); |
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274 | goto end; |
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275 | } |
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276 | |
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277 | if(keyfile) |
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278 | { |
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279 | if (want_pub) |
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280 | sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, |
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281 | e, "key file"); |
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282 | else |
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283 | sigkey = load_key(bio_err, keyfile, keyform, 0, NULL, |
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284 | e, "key file"); |
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285 | if (!sigkey) |
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286 | { |
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287 | /* load_[pub]key() has already printed an appropriate |
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288 | message */ |
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289 | goto end; |
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290 | } |
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291 | } |
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292 | |
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293 | if(sigfile && sigkey) { |
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294 | BIO *sigbio; |
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295 | sigbio = BIO_new_file(sigfile, "rb"); |
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296 | siglen = EVP_PKEY_size(sigkey); |
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297 | sigbuf = OPENSSL_malloc(siglen); |
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298 | if(!sigbio) { |
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299 | BIO_printf(bio_err, "Error opening signature file %s\n", |
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300 | sigfile); |
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301 | ERR_print_errors(bio_err); |
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302 | goto end; |
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303 | } |
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304 | siglen = BIO_read(sigbio, sigbuf, siglen); |
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305 | BIO_free(sigbio); |
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306 | if(siglen <= 0) { |
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307 | BIO_printf(bio_err, "Error reading signature file %s\n", |
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308 | sigfile); |
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309 | ERR_print_errors(bio_err); |
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310 | goto end; |
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311 | } |
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312 | } |
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313 | |
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314 | |
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315 | |
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316 | /* we use md as a filter, reading from 'in' */ |
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317 | BIO_set_md(bmd,md); |
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318 | inp=BIO_push(bmd,in); |
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319 | |
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320 | if (argc == 0) |
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321 | { |
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322 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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323 | err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, |
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324 | siglen,"","(stdin)"); |
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325 | } |
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326 | else |
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327 | { |
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328 | name=OBJ_nid2sn(md->type); |
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329 | for (i=0; i<argc; i++) |
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330 | { |
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331 | char *tmp,*tofree=NULL; |
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332 | int r; |
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333 | |
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334 | if (BIO_read_filename(in,argv[i]) <= 0) |
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335 | { |
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336 | perror(argv[i]); |
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337 | err++; |
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338 | continue; |
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339 | } |
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340 | if(!out_bin) |
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341 | { |
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342 | tmp=tofree=OPENSSL_malloc(strlen(name)+strlen(argv[i])+5); |
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343 | sprintf(tmp,"%s(%s)= ",name,argv[i]); |
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344 | } |
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345 | else |
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346 | tmp=""; |
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347 | r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf, |
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348 | siglen,tmp,argv[i]); |
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349 | if(r) |
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350 | err=r; |
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351 | if(tofree) |
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352 | OPENSSL_free(tofree); |
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353 | (void)BIO_reset(bmd); |
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354 | } |
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355 | } |
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356 | end: |
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357 | if (buf != NULL) |
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358 | { |
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359 | OPENSSL_cleanse(buf,BUFSIZE); |
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360 | OPENSSL_free(buf); |
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361 | } |
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362 | if (in != NULL) BIO_free(in); |
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363 | BIO_free_all(out); |
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364 | EVP_PKEY_free(sigkey); |
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365 | if(sigbuf) OPENSSL_free(sigbuf); |
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366 | if (bmd != NULL) BIO_free(bmd); |
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367 | apps_shutdown(); |
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368 | OPENSSL_EXIT(err); |
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369 | } |
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370 | |
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371 | int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, |
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372 | EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title, |
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373 | const char *file) |
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374 | { |
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375 | int len; |
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376 | int i; |
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377 | |
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378 | for (;;) |
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379 | { |
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380 | i=BIO_read(bp,(char *)buf,BUFSIZE); |
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381 | if(i < 0) |
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382 | { |
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383 | BIO_printf(bio_err, "Read Error in %s\n",file); |
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384 | ERR_print_errors(bio_err); |
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385 | return 1; |
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386 | } |
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387 | if (i == 0) break; |
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388 | } |
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389 | if(sigin) |
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390 | { |
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391 | EVP_MD_CTX *ctx; |
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392 | BIO_get_md_ctx(bp, &ctx); |
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393 | i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key); |
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394 | if(i > 0) |
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395 | BIO_printf(out, "Verified OK\n"); |
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396 | else if(i == 0) |
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397 | { |
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398 | BIO_printf(out, "Verification Failure\n"); |
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399 | return 1; |
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400 | } |
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401 | else |
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402 | { |
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403 | BIO_printf(bio_err, "Error Verifying Data\n"); |
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404 | ERR_print_errors(bio_err); |
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405 | return 1; |
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406 | } |
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407 | return 0; |
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408 | } |
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409 | if(key) |
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410 | { |
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411 | EVP_MD_CTX *ctx; |
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412 | BIO_get_md_ctx(bp, &ctx); |
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413 | if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key)) |
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414 | { |
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415 | BIO_printf(bio_err, "Error Signing Data\n"); |
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416 | ERR_print_errors(bio_err); |
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417 | return 1; |
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418 | } |
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419 | } |
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420 | else |
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421 | len=BIO_gets(bp,(char *)buf,BUFSIZE); |
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422 | |
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423 | if(binout) BIO_write(out, buf, len); |
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424 | else |
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425 | { |
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426 | BIO_write(out,title,strlen(title)); |
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427 | for (i=0; i<len; i++) |
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428 | { |
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429 | if (sep && (i != 0)) |
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430 | BIO_printf(out, ":"); |
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431 | BIO_printf(out, "%02x",buf[i]); |
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432 | } |
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433 | BIO_printf(out, "\n"); |
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434 | } |
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435 | return 0; |
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436 | } |
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437 | |
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