1 | /*
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2 | * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | #include <stdio.h>
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11 | #include <string.h>
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12 | #include "apps.h"
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13 | #include <openssl/pem.h>
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14 | #include <openssl/err.h>
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15 | #include <openssl/evp.h>
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16 |
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17 | typedef enum OPTION_choice {
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18 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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19 | OPT_INFORM, OPT_OUTFORM, OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE,
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20 | OPT_IN, OPT_OUT, OPT_PUBIN, OPT_PUBOUT, OPT_TEXT_PUB,
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21 | OPT_TEXT, OPT_NOOUT, OPT_MD, OPT_TRADITIONAL
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22 | } OPTION_CHOICE;
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23 |
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24 | OPTIONS pkey_options[] = {
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25 | {"help", OPT_HELP, '-', "Display this summary"},
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26 | {"inform", OPT_INFORM, 'f', "Input format (DER or PEM)"},
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27 | {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"},
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28 | {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
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29 | {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
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30 | {"in", OPT_IN, 's', "Input key"},
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31 | {"out", OPT_OUT, '>', "Output file"},
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32 | {"pubin", OPT_PUBIN, '-',
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33 | "Read public key from input (default is private key)"},
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34 | {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
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35 | {"text_pub", OPT_TEXT_PUB, '-', "Only output public key components"},
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36 | {"text", OPT_TEXT, '-', "Output in plaintext as well"},
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37 | {"noout", OPT_NOOUT, '-', "Don't output the key"},
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38 | {"", OPT_MD, '-', "Any supported cipher"},
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39 | {"traditional", OPT_TRADITIONAL, '-',
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40 | "Use traditional format for private keys"},
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41 | #ifndef OPENSSL_NO_ENGINE
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42 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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43 | #endif
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44 | {NULL}
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45 | };
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46 |
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47 | int pkey_main(int argc, char **argv)
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48 | {
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49 | BIO *in = NULL, *out = NULL;
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50 | ENGINE *e = NULL;
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51 | EVP_PKEY *pkey = NULL;
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52 | const EVP_CIPHER *cipher = NULL;
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53 | char *infile = NULL, *outfile = NULL, *passin = NULL, *passout = NULL;
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54 | char *passinarg = NULL, *passoutarg = NULL, *prog;
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55 | OPTION_CHOICE o;
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56 | int informat = FORMAT_PEM, outformat = FORMAT_PEM;
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57 | int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0, ret = 1;
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58 | int private = 0, traditional = 0;
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59 |
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60 | prog = opt_init(argc, argv, pkey_options);
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61 | while ((o = opt_next()) != OPT_EOF) {
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62 | switch (o) {
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63 | case OPT_EOF:
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64 | case OPT_ERR:
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65 | opthelp:
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66 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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67 | goto end;
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68 | case OPT_HELP:
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69 | opt_help(pkey_options);
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70 | ret = 0;
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71 | goto end;
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72 | case OPT_INFORM:
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73 | if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
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74 | goto opthelp;
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75 | break;
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76 | case OPT_OUTFORM:
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77 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
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78 | goto opthelp;
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79 | break;
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80 | case OPT_PASSIN:
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81 | passinarg = opt_arg();
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82 | break;
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83 | case OPT_PASSOUT:
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84 | passoutarg = opt_arg();
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85 | break;
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86 | case OPT_ENGINE:
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87 | e = setup_engine(opt_arg(), 0);
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88 | break;
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89 | case OPT_IN:
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90 | infile = opt_arg();
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91 | break;
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92 | case OPT_OUT:
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93 | outfile = opt_arg();
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94 | break;
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95 | case OPT_PUBIN:
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96 | pubin = pubout = pubtext = 1;
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97 | break;
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98 | case OPT_PUBOUT:
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99 | pubout = 1;
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100 | break;
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101 | case OPT_TEXT_PUB:
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102 | pubtext = text = 1;
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103 | break;
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104 | case OPT_TEXT:
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105 | text = 1;
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106 | break;
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107 | case OPT_NOOUT:
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108 | noout = 1;
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109 | break;
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110 | case OPT_TRADITIONAL:
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111 | traditional = 1;
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112 | break;
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113 | case OPT_MD:
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114 | if (!opt_cipher(opt_unknown(), &cipher))
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115 | goto opthelp;
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116 | }
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117 | }
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118 | argc = opt_num_rest();
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119 | if (argc != 0)
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120 | goto opthelp;
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121 |
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122 | private = !noout && !pubout ? 1 : 0;
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123 | if (text && !pubtext)
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124 | private = 1;
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125 |
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126 | if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
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127 | BIO_printf(bio_err, "Error getting passwords\n");
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128 | goto end;
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129 | }
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130 |
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131 | out = bio_open_owner(outfile, outformat, private);
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132 | if (out == NULL)
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133 | goto end;
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134 |
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135 | if (pubin)
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136 | pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
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137 | else
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138 | pkey = load_key(infile, informat, 1, passin, e, "key");
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139 | if (!pkey)
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140 | goto end;
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141 |
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142 | if (!noout) {
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143 | if (outformat == FORMAT_PEM) {
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144 | if (pubout)
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145 | PEM_write_bio_PUBKEY(out, pkey);
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146 | else {
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147 | assert(private);
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148 | if (traditional)
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149 | PEM_write_bio_PrivateKey_traditional(out, pkey, cipher,
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150 | NULL, 0, NULL,
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151 | passout);
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152 | else
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153 | PEM_write_bio_PrivateKey(out, pkey, cipher,
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154 | NULL, 0, NULL, passout);
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155 | }
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156 | } else if (outformat == FORMAT_ASN1) {
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157 | if (pubout)
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158 | i2d_PUBKEY_bio(out, pkey);
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159 | else {
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160 | assert(private);
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161 | i2d_PrivateKey_bio(out, pkey);
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162 | }
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163 | } else {
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164 | BIO_printf(bio_err, "Bad format specified for key\n");
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165 | goto end;
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166 | }
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167 |
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168 | }
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169 |
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170 | if (text) {
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171 | if (pubtext)
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172 | EVP_PKEY_print_public(out, pkey, 0, NULL);
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173 | else {
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174 | assert(private);
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175 | EVP_PKEY_print_private(out, pkey, 0, NULL);
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176 | }
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177 | }
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178 |
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179 | ret = 0;
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180 |
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181 | end:
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182 | EVP_PKEY_free(pkey);
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183 | release_engine(e);
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184 | BIO_free_all(out);
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185 | BIO_free(in);
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186 | OPENSSL_free(passin);
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187 | OPENSSL_free(passout);
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188 |
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189 | return ret;
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190 | }
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