1 /* $OpenBSD: pkcs8.c,v 1.14 2019/07/14 03:30:46 guenther Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 1999-2004. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #include <stdio.h> 60 #include <string.h> 61 62 #include "apps.h" 63 #include "progs.h" 64 65 #include <openssl/err.h> 66 #include <openssl/evp.h> 67 #include <openssl/pem.h> 68 #include <openssl/pkcs12.h> 69 70 static struct { 71 const EVP_CIPHER *cipher; 72 char *infile; 73 int informat; 74 int iter; 75 int nocrypt; 76 char *outfile; 77 int outformat; 78 char *passargin; 79 char *passargout; 80 int pbe_nid; 81 int topk8; 82 } pkcs8_config; 83 84 static int 85 pkcs8_opt_v1(char *arg) 86 { 87 if ((pkcs8_config.pbe_nid = OBJ_txt2nid(arg)) == NID_undef) { 88 fprintf(stderr, "Unknown PBE algorithm '%s'\n", arg); 89 return (1); 90 } 91 92 return (0); 93 } 94 95 static int 96 pkcs8_opt_v2(char *arg) 97 { 98 if ((pkcs8_config.cipher = EVP_get_cipherbyname(arg)) == NULL) { 99 fprintf(stderr, "Unknown cipher '%s'\n", arg); 100 return (1); 101 } 102 103 return (0); 104 } 105 106 static const struct option pkcs8_options[] = { 107 { 108 .name = "in", 109 .argname = "file", 110 .desc = "Input file (default stdin)", 111 .type = OPTION_ARG, 112 .opt.arg = &pkcs8_config.infile, 113 }, 114 { 115 .name = "inform", 116 .argname = "der | pem", 117 .desc = "Input format (default PEM)", 118 .type = OPTION_ARG_FORMAT, 119 .opt.value = &pkcs8_config.informat, 120 }, 121 { 122 .name = "nocrypt", 123 .desc = "Use or expect unencrypted private key", 124 .type = OPTION_FLAG, 125 .opt.flag = &pkcs8_config.nocrypt, 126 }, 127 { 128 .name = "noiter", 129 .desc = "Use 1 as iteration count", 130 .type = OPTION_VALUE, 131 .value = 1, 132 .opt.value = &pkcs8_config.iter, 133 }, 134 { 135 .name = "out", 136 .argname = "file", 137 .desc = "Output file (default stdout)", 138 .type = OPTION_ARG, 139 .opt.arg = &pkcs8_config.outfile, 140 }, 141 { 142 .name = "outform", 143 .argname = "der | pem", 144 .desc = "Output format (default PEM)", 145 .type = OPTION_ARG_FORMAT, 146 .opt.value = &pkcs8_config.outformat, 147 }, 148 { 149 .name = "passin", 150 .argname = "source", 151 .desc = "Input file passphrase source", 152 .type = OPTION_ARG, 153 .opt.arg = &pkcs8_config.passargin, 154 }, 155 { 156 .name = "passout", 157 .argname = "source", 158 .desc = "Output file passphrase source", 159 .type = OPTION_ARG, 160 .opt.arg = &pkcs8_config.passargout, 161 }, 162 { 163 .name = "topk8", 164 .desc = "Read traditional format key and write PKCS#8 format" 165 " key", 166 .type = OPTION_FLAG, 167 .opt.flag = &pkcs8_config.topk8, 168 }, 169 { 170 .name = "v1", 171 .argname = "algorithm", 172 .desc = "Use PKCS#5 v1.5 or PKCS#12 with given algorithm", 173 .type = OPTION_ARG_FUNC, 174 .opt.argfunc = pkcs8_opt_v1, 175 }, 176 { 177 .name = "v2", 178 .argname = "cipher", 179 .desc = "Use PKCS#5 v2.0 with given cipher", 180 .type = OPTION_ARG_FUNC, 181 .opt.argfunc = pkcs8_opt_v2, 182 }, 183 { NULL }, 184 }; 185 186 static void 187 pkcs8_usage() 188 { 189 fprintf(stderr, "usage: pkcs8 [-in file] [inform der | pem] " 190 "[-nocrypt] [-noiter]\n" 191 " [-out file] [-outform der | pem] [-passin arg]\n" 192 " [-passout arg] [-topk8] [-v1 alg] [-v2 alg]\n\n"); 193 options_usage(pkcs8_options); 194 } 195 196 int 197 pkcs8_main(int argc, char **argv) 198 { 199 BIO *in = NULL, *out = NULL; 200 X509_SIG *p8 = NULL; 201 PKCS8_PRIV_KEY_INFO *p8inf = NULL; 202 EVP_PKEY *pkey = NULL; 203 char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL; 204 int ret = 1; 205 206 if (single_execution) { 207 if (pledge("stdio cpath wpath rpath tty", NULL) == -1) { 208 perror("pledge"); 209 exit(1); 210 } 211 } 212 213 memset(&pkcs8_config, 0, sizeof(pkcs8_config)); 214 215 pkcs8_config.iter = PKCS12_DEFAULT_ITER; 216 pkcs8_config.informat = FORMAT_PEM; 217 pkcs8_config.outformat = FORMAT_PEM; 218 pkcs8_config.pbe_nid = -1; 219 220 if (options_parse(argc, argv, pkcs8_options, NULL, NULL) != 0) { 221 pkcs8_usage(); 222 return (1); 223 } 224 225 if (!app_passwd(bio_err, pkcs8_config.passargin, 226 pkcs8_config.passargout, &passin, &passout)) { 227 BIO_printf(bio_err, "Error getting passwords\n"); 228 goto end; 229 } 230 if ((pkcs8_config.pbe_nid == -1) && !pkcs8_config.cipher) 231 pkcs8_config.pbe_nid = NID_pbeWithMD5AndDES_CBC; 232 233 if (pkcs8_config.infile) { 234 if (!(in = BIO_new_file(pkcs8_config.infile, "rb"))) { 235 BIO_printf(bio_err, 236 "Can't open input file '%s'\n", 237 pkcs8_config.infile); 238 goto end; 239 } 240 } else 241 in = BIO_new_fp(stdin, BIO_NOCLOSE); 242 243 if (pkcs8_config.outfile) { 244 if (!(out = BIO_new_file(pkcs8_config.outfile, "wb"))) { 245 BIO_printf(bio_err, "Can't open output file '%s'\n", 246 pkcs8_config.outfile); 247 goto end; 248 } 249 } else { 250 out = BIO_new_fp(stdout, BIO_NOCLOSE); 251 } 252 if (pkcs8_config.topk8) { 253 pkey = load_key(bio_err, pkcs8_config.infile, 254 pkcs8_config.informat, 1, passin, "key"); 255 if (!pkey) 256 goto end; 257 if (!(p8inf = EVP_PKEY2PKCS8(pkey))) { 258 BIO_printf(bio_err, "Error converting key\n"); 259 ERR_print_errors(bio_err); 260 goto end; 261 } 262 if (pkcs8_config.nocrypt) { 263 if (pkcs8_config.outformat == FORMAT_PEM) 264 PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf); 265 else if (pkcs8_config.outformat == FORMAT_ASN1) 266 i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf); 267 else { 268 BIO_printf(bio_err, 269 "Bad format specified for key\n"); 270 goto end; 271 } 272 } else { 273 if (passout) 274 p8pass = passout; 275 else { 276 p8pass = pass; 277 if (EVP_read_pw_string(pass, sizeof pass, 278 "Enter Encryption Password:", 1)) 279 goto end; 280 } 281 if (!(p8 = PKCS8_encrypt(pkcs8_config.pbe_nid, 282 pkcs8_config.cipher, p8pass, strlen(p8pass), 283 NULL, 0, pkcs8_config.iter, p8inf))) { 284 BIO_printf(bio_err, "Error encrypting key\n"); 285 ERR_print_errors(bio_err); 286 goto end; 287 } 288 if (pkcs8_config.outformat == FORMAT_PEM) 289 PEM_write_bio_PKCS8(out, p8); 290 else if (pkcs8_config.outformat == FORMAT_ASN1) 291 i2d_PKCS8_bio(out, p8); 292 else { 293 BIO_printf(bio_err, 294 "Bad format specified for key\n"); 295 goto end; 296 } 297 } 298 299 ret = 0; 300 goto end; 301 } 302 if (pkcs8_config.nocrypt) { 303 if (pkcs8_config.informat == FORMAT_PEM) 304 p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL, 305 NULL, NULL); 306 else if (pkcs8_config.informat == FORMAT_ASN1) 307 p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL); 308 else { 309 BIO_printf(bio_err, "Bad format specified for key\n"); 310 goto end; 311 } 312 } else { 313 if (pkcs8_config.informat == FORMAT_PEM) 314 p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL); 315 else if (pkcs8_config.informat == FORMAT_ASN1) 316 p8 = d2i_PKCS8_bio(in, NULL); 317 else { 318 BIO_printf(bio_err, "Bad format specified for key\n"); 319 goto end; 320 } 321 322 if (!p8) { 323 BIO_printf(bio_err, "Error reading key\n"); 324 ERR_print_errors(bio_err); 325 goto end; 326 } 327 if (passin) 328 p8pass = passin; 329 else { 330 p8pass = pass; 331 EVP_read_pw_string(pass, sizeof pass, 332 "Enter Password:", 0); 333 } 334 p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass)); 335 } 336 337 if (!p8inf) { 338 BIO_printf(bio_err, "Error decrypting key\n"); 339 ERR_print_errors(bio_err); 340 goto end; 341 } 342 if (!(pkey = EVP_PKCS82PKEY(p8inf))) { 343 BIO_printf(bio_err, "Error converting key\n"); 344 ERR_print_errors(bio_err); 345 goto end; 346 } 347 if (pkcs8_config.outformat == FORMAT_PEM) 348 PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, 349 passout); 350 else if (pkcs8_config.outformat == FORMAT_ASN1) 351 i2d_PrivateKey_bio(out, pkey); 352 else { 353 BIO_printf(bio_err, "Bad format specified for key\n"); 354 goto end; 355 } 356 ret = 0; 357 358 end: 359 X509_SIG_free(p8); 360 PKCS8_PRIV_KEY_INFO_free(p8inf); 361 EVP_PKEY_free(pkey); 362 BIO_free_all(out); 363 BIO_free(in); 364 free(passin); 365 free(passout); 366 367 return ret; 368 } 369