1 /* 2 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <stdio.h> 11 #include <string.h> 12 #include "apps.h" 13 #include <openssl/pem.h> 14 #include <openssl/err.h> 15 #include <openssl/evp.h> 16 17 typedef enum OPTION_choice { 18 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, 19 OPT_INFORM, OPT_OUTFORM, OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE, 20 OPT_IN, OPT_OUT, OPT_PUBIN, OPT_PUBOUT, OPT_TEXT_PUB, 21 OPT_TEXT, OPT_NOOUT, OPT_MD, OPT_TRADITIONAL 22 } OPTION_CHOICE; 23 24 OPTIONS pkey_options[] = { 25 {"help", OPT_HELP, '-', "Display this summary"}, 26 {"inform", OPT_INFORM, 'f', "Input format (DER or PEM)"}, 27 {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"}, 28 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, 29 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, 30 {"in", OPT_IN, 's', "Input key"}, 31 {"out", OPT_OUT, '>', "Output file"}, 32 {"pubin", OPT_PUBIN, '-', 33 "Read public key from input (default is private key)"}, 34 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"}, 35 {"text_pub", OPT_TEXT_PUB, '-', "Only output public key components"}, 36 {"text", OPT_TEXT, '-', "Output in plaintext as well"}, 37 {"noout", OPT_NOOUT, '-', "Don't output the key"}, 38 {"", OPT_MD, '-', "Any supported cipher"}, 39 {"traditional", OPT_TRADITIONAL, '-', 40 "Use traditional format for private keys"}, 41 #ifndef OPENSSL_NO_ENGINE 42 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 43 #endif 44 {NULL} 45 }; 46 47 int pkey_main(int argc, char **argv) 48 { 49 BIO *in = NULL, *out = NULL; 50 ENGINE *e = NULL; 51 EVP_PKEY *pkey = NULL; 52 const EVP_CIPHER *cipher = NULL; 53 char *infile = NULL, *outfile = NULL, *passin = NULL, *passout = NULL; 54 char *passinarg = NULL, *passoutarg = NULL, *prog; 55 OPTION_CHOICE o; 56 int informat = FORMAT_PEM, outformat = FORMAT_PEM; 57 int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0, ret = 1; 58 int private = 0, traditional = 0; 59 60 prog = opt_init(argc, argv, pkey_options); 61 while ((o = opt_next()) != OPT_EOF) { 62 switch (o) { 63 case OPT_EOF: 64 case OPT_ERR: 65 opthelp: 66 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 67 goto end; 68 case OPT_HELP: 69 opt_help(pkey_options); 70 ret = 0; 71 goto end; 72 case OPT_INFORM: 73 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat)) 74 goto opthelp; 75 break; 76 case OPT_OUTFORM: 77 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) 78 goto opthelp; 79 break; 80 case OPT_PASSIN: 81 passinarg = opt_arg(); 82 break; 83 case OPT_PASSOUT: 84 passoutarg = opt_arg(); 85 break; 86 case OPT_ENGINE: 87 e = setup_engine(opt_arg(), 0); 88 break; 89 case OPT_IN: 90 infile = opt_arg(); 91 break; 92 case OPT_OUT: 93 outfile = opt_arg(); 94 break; 95 case OPT_PUBIN: 96 pubin = pubout = pubtext = 1; 97 break; 98 case OPT_PUBOUT: 99 pubout = 1; 100 break; 101 case OPT_TEXT_PUB: 102 pubtext = text = 1; 103 break; 104 case OPT_TEXT: 105 text = 1; 106 break; 107 case OPT_NOOUT: 108 noout = 1; 109 break; 110 case OPT_TRADITIONAL: 111 traditional = 1; 112 break; 113 case OPT_MD: 114 if (!opt_cipher(opt_unknown(), &cipher)) 115 goto opthelp; 116 } 117 } 118 argc = opt_num_rest(); 119 if (argc != 0) 120 goto opthelp; 121 122 private = !noout && !pubout ? 1 : 0; 123 if (text && !pubtext) 124 private = 1; 125 126 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) { 127 BIO_printf(bio_err, "Error getting passwords\n"); 128 goto end; 129 } 130 131 out = bio_open_owner(outfile, outformat, private); 132 if (out == NULL) 133 goto end; 134 135 if (pubin) 136 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key"); 137 else 138 pkey = load_key(infile, informat, 1, passin, e, "key"); 139 if (!pkey) 140 goto end; 141 142 if (!noout) { 143 if (outformat == FORMAT_PEM) { 144 if (pubout) 145 PEM_write_bio_PUBKEY(out, pkey); 146 else { 147 assert(private); 148 if (traditional) 149 PEM_write_bio_PrivateKey_traditional(out, pkey, cipher, 150 NULL, 0, NULL, 151 passout); 152 else 153 PEM_write_bio_PrivateKey(out, pkey, cipher, 154 NULL, 0, NULL, passout); 155 } 156 } else if (outformat == FORMAT_ASN1) { 157 if (pubout) 158 i2d_PUBKEY_bio(out, pkey); 159 else { 160 assert(private); 161 i2d_PrivateKey_bio(out, pkey); 162 } 163 } else { 164 BIO_printf(bio_err, "Bad format specified for key\n"); 165 goto end; 166 } 167 168 } 169 170 if (text) { 171 if (pubtext) 172 EVP_PKEY_print_public(out, pkey, 0, NULL); 173 else { 174 assert(private); 175 EVP_PKEY_print_private(out, pkey, 0, NULL); 176 } 177 } 178 179 ret = 0; 180 181 end: 182 EVP_PKEY_free(pkey); 183 release_engine(e); 184 BIO_free_all(out); 185 BIO_free(in); 186 OPENSSL_free(passin); 187 OPENSSL_free(passout); 188 189 return ret; 190 } 191