1 /* 2 * Copyright 1999-2018 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 <stdlib.h> 12 #include <string.h> 13 #include "apps.h" 14 #include "progs.h" 15 #include <openssl/pem.h> 16 #include <openssl/err.h> 17 #include <openssl/evp.h> 18 #include <openssl/pkcs12.h> 19 20 typedef enum OPTION_choice { 21 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, 22 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT, 23 OPT_TOPK8, OPT_NOITER, OPT_NOCRYPT, 24 #ifndef OPENSSL_NO_SCRYPT 25 OPT_SCRYPT, OPT_SCRYPT_N, OPT_SCRYPT_R, OPT_SCRYPT_P, 26 #endif 27 OPT_V2, OPT_V1, OPT_V2PRF, OPT_ITER, OPT_PASSIN, OPT_PASSOUT, 28 OPT_TRADITIONAL, 29 OPT_R_ENUM 30 } OPTION_CHOICE; 31 32 const OPTIONS pkcs8_options[] = { 33 {"help", OPT_HELP, '-', "Display this summary"}, 34 {"inform", OPT_INFORM, 'F', "Input format (DER or PEM)"}, 35 {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"}, 36 {"in", OPT_IN, '<', "Input file"}, 37 {"out", OPT_OUT, '>', "Output file"}, 38 {"topk8", OPT_TOPK8, '-', "Output PKCS8 file"}, 39 {"noiter", OPT_NOITER, '-', "Use 1 as iteration count"}, 40 {"nocrypt", OPT_NOCRYPT, '-', "Use or expect unencrypted private key"}, 41 OPT_R_OPTIONS, 42 {"v2", OPT_V2, 's', "Use PKCS#5 v2.0 and cipher"}, 43 {"v1", OPT_V1, 's', "Use PKCS#5 v1.5 and cipher"}, 44 {"v2prf", OPT_V2PRF, 's', "Set the PRF algorithm to use with PKCS#5 v2.0"}, 45 {"iter", OPT_ITER, 'p', "Specify the iteration count"}, 46 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, 47 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, 48 {"traditional", OPT_TRADITIONAL, '-', "use traditional format private key"}, 49 #ifndef OPENSSL_NO_ENGINE 50 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 51 #endif 52 #ifndef OPENSSL_NO_SCRYPT 53 {"scrypt", OPT_SCRYPT, '-', "Use scrypt algorithm"}, 54 {"scrypt_N", OPT_SCRYPT_N, 's', "Set scrypt N parameter"}, 55 {"scrypt_r", OPT_SCRYPT_R, 's', "Set scrypt r parameter"}, 56 {"scrypt_p", OPT_SCRYPT_P, 's', "Set scrypt p parameter"}, 57 #endif 58 {NULL} 59 }; 60 61 int pkcs8_main(int argc, char **argv) 62 { 63 BIO *in = NULL, *out = NULL; 64 ENGINE *e = NULL; 65 EVP_PKEY *pkey = NULL; 66 PKCS8_PRIV_KEY_INFO *p8inf = NULL; 67 X509_SIG *p8 = NULL; 68 const EVP_CIPHER *cipher = NULL; 69 char *infile = NULL, *outfile = NULL; 70 char *passinarg = NULL, *passoutarg = NULL, *prog; 71 #ifndef OPENSSL_NO_UI_CONSOLE 72 char pass[APP_PASS_LEN]; 73 #endif 74 char *passin = NULL, *passout = NULL, *p8pass = NULL; 75 OPTION_CHOICE o; 76 int nocrypt = 0, ret = 1, iter = PKCS12_DEFAULT_ITER; 77 int informat = FORMAT_PEM, outformat = FORMAT_PEM, topk8 = 0, pbe_nid = -1; 78 int private = 0, traditional = 0; 79 #ifndef OPENSSL_NO_SCRYPT 80 long scrypt_N = 0, scrypt_r = 0, scrypt_p = 0; 81 #endif 82 83 prog = opt_init(argc, argv, pkcs8_options); 84 while ((o = opt_next()) != OPT_EOF) { 85 switch (o) { 86 case OPT_EOF: 87 case OPT_ERR: 88 opthelp: 89 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 90 goto end; 91 case OPT_HELP: 92 opt_help(pkcs8_options); 93 ret = 0; 94 goto end; 95 case OPT_INFORM: 96 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) 97 goto opthelp; 98 break; 99 case OPT_IN: 100 infile = opt_arg(); 101 break; 102 case OPT_OUTFORM: 103 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) 104 goto opthelp; 105 break; 106 case OPT_OUT: 107 outfile = opt_arg(); 108 break; 109 case OPT_TOPK8: 110 topk8 = 1; 111 break; 112 case OPT_NOITER: 113 iter = 1; 114 break; 115 case OPT_NOCRYPT: 116 nocrypt = 1; 117 break; 118 case OPT_R_CASES: 119 if (!opt_rand(o)) 120 goto end; 121 break; 122 case OPT_TRADITIONAL: 123 traditional = 1; 124 break; 125 case OPT_V2: 126 if (!opt_cipher(opt_arg(), &cipher)) 127 goto opthelp; 128 break; 129 case OPT_V1: 130 pbe_nid = OBJ_txt2nid(opt_arg()); 131 if (pbe_nid == NID_undef) { 132 BIO_printf(bio_err, 133 "%s: Unknown PBE algorithm %s\n", prog, opt_arg()); 134 goto opthelp; 135 } 136 break; 137 case OPT_V2PRF: 138 pbe_nid = OBJ_txt2nid(opt_arg()); 139 if (!EVP_PBE_find(EVP_PBE_TYPE_PRF, pbe_nid, NULL, NULL, 0)) { 140 BIO_printf(bio_err, 141 "%s: Unknown PRF algorithm %s\n", prog, opt_arg()); 142 goto opthelp; 143 } 144 if (cipher == NULL) 145 cipher = EVP_aes_256_cbc(); 146 break; 147 case OPT_ITER: 148 if (!opt_int(opt_arg(), &iter)) 149 goto opthelp; 150 break; 151 case OPT_PASSIN: 152 passinarg = opt_arg(); 153 break; 154 case OPT_PASSOUT: 155 passoutarg = opt_arg(); 156 break; 157 case OPT_ENGINE: 158 e = setup_engine(opt_arg(), 0); 159 break; 160 #ifndef OPENSSL_NO_SCRYPT 161 case OPT_SCRYPT: 162 scrypt_N = 16384; 163 scrypt_r = 8; 164 scrypt_p = 1; 165 if (cipher == NULL) 166 cipher = EVP_aes_256_cbc(); 167 break; 168 case OPT_SCRYPT_N: 169 if (!opt_long(opt_arg(), &scrypt_N) || scrypt_N <= 0) 170 goto opthelp; 171 break; 172 case OPT_SCRYPT_R: 173 if (!opt_long(opt_arg(), &scrypt_r) || scrypt_r <= 0) 174 goto opthelp; 175 break; 176 case OPT_SCRYPT_P: 177 if (!opt_long(opt_arg(), &scrypt_p) || scrypt_p <= 0) 178 goto opthelp; 179 break; 180 #endif 181 } 182 } 183 argc = opt_num_rest(); 184 if (argc != 0) 185 goto opthelp; 186 187 private = 1; 188 189 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) { 190 BIO_printf(bio_err, "Error getting passwords\n"); 191 goto end; 192 } 193 194 if ((pbe_nid == -1) && cipher == NULL) 195 cipher = EVP_aes_256_cbc(); 196 197 in = bio_open_default(infile, 'r', informat); 198 if (in == NULL) 199 goto end; 200 out = bio_open_owner(outfile, outformat, private); 201 if (out == NULL) 202 goto end; 203 204 if (topk8) { 205 pkey = load_key(infile, informat, 1, passin, e, "key"); 206 if (pkey == NULL) 207 goto end; 208 if ((p8inf = EVP_PKEY2PKCS8(pkey)) == NULL) { 209 BIO_printf(bio_err, "Error converting key\n"); 210 ERR_print_errors(bio_err); 211 goto end; 212 } 213 if (nocrypt) { 214 assert(private); 215 if (outformat == FORMAT_PEM) { 216 PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf); 217 } else if (outformat == FORMAT_ASN1) { 218 i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf); 219 } else { 220 BIO_printf(bio_err, "Bad format specified for key\n"); 221 goto end; 222 } 223 } else { 224 X509_ALGOR *pbe; 225 if (cipher) { 226 #ifndef OPENSSL_NO_SCRYPT 227 if (scrypt_N && scrypt_r && scrypt_p) 228 pbe = PKCS5_pbe2_set_scrypt(cipher, NULL, 0, NULL, 229 scrypt_N, scrypt_r, scrypt_p); 230 else 231 #endif 232 pbe = PKCS5_pbe2_set_iv(cipher, iter, NULL, 0, NULL, 233 pbe_nid); 234 } else { 235 pbe = PKCS5_pbe_set(pbe_nid, iter, NULL, 0); 236 } 237 if (pbe == NULL) { 238 BIO_printf(bio_err, "Error setting PBE algorithm\n"); 239 ERR_print_errors(bio_err); 240 goto end; 241 } 242 if (passout != NULL) { 243 p8pass = passout; 244 } else if (1) { 245 /* To avoid bit rot */ 246 #ifndef OPENSSL_NO_UI_CONSOLE 247 p8pass = pass; 248 if (EVP_read_pw_string 249 (pass, sizeof(pass), "Enter Encryption Password:", 1)) { 250 X509_ALGOR_free(pbe); 251 goto end; 252 } 253 } else { 254 #endif 255 BIO_printf(bio_err, "Password required\n"); 256 goto end; 257 } 258 p8 = PKCS8_set0_pbe(p8pass, strlen(p8pass), p8inf, pbe); 259 if (p8 == NULL) { 260 X509_ALGOR_free(pbe); 261 BIO_printf(bio_err, "Error encrypting key\n"); 262 ERR_print_errors(bio_err); 263 goto end; 264 } 265 assert(private); 266 if (outformat == FORMAT_PEM) 267 PEM_write_bio_PKCS8(out, p8); 268 else if (outformat == FORMAT_ASN1) 269 i2d_PKCS8_bio(out, p8); 270 else { 271 BIO_printf(bio_err, "Bad format specified for key\n"); 272 goto end; 273 } 274 } 275 276 ret = 0; 277 goto end; 278 } 279 280 if (nocrypt) { 281 if (informat == FORMAT_PEM) { 282 p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL, NULL, NULL); 283 } else if (informat == FORMAT_ASN1) { 284 p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL); 285 } else { 286 BIO_printf(bio_err, "Bad format specified for key\n"); 287 goto end; 288 } 289 } else { 290 if (informat == FORMAT_PEM) { 291 p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL); 292 } else if (informat == FORMAT_ASN1) { 293 p8 = d2i_PKCS8_bio(in, NULL); 294 } else { 295 BIO_printf(bio_err, "Bad format specified for key\n"); 296 goto end; 297 } 298 299 if (p8 == NULL) { 300 BIO_printf(bio_err, "Error reading key\n"); 301 ERR_print_errors(bio_err); 302 goto end; 303 } 304 if (passin != NULL) { 305 p8pass = passin; 306 } else if (1) { 307 #ifndef OPENSSL_NO_UI_CONSOLE 308 p8pass = pass; 309 if (EVP_read_pw_string(pass, sizeof(pass), "Enter Password:", 0)) { 310 BIO_printf(bio_err, "Can't read Password\n"); 311 goto end; 312 } 313 } else { 314 #endif 315 BIO_printf(bio_err, "Password required\n"); 316 goto end; 317 } 318 p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass)); 319 } 320 321 if (p8inf == NULL) { 322 BIO_printf(bio_err, "Error decrypting key\n"); 323 ERR_print_errors(bio_err); 324 goto end; 325 } 326 327 if ((pkey = EVP_PKCS82PKEY(p8inf)) == NULL) { 328 BIO_printf(bio_err, "Error converting key\n"); 329 ERR_print_errors(bio_err); 330 goto end; 331 } 332 333 assert(private); 334 if (outformat == FORMAT_PEM) { 335 if (traditional) 336 PEM_write_bio_PrivateKey_traditional(out, pkey, NULL, NULL, 0, 337 NULL, passout); 338 else 339 PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, passout); 340 } else if (outformat == FORMAT_ASN1) { 341 i2d_PrivateKey_bio(out, pkey); 342 } else { 343 BIO_printf(bio_err, "Bad format specified for key\n"); 344 goto end; 345 } 346 ret = 0; 347 348 end: 349 X509_SIG_free(p8); 350 PKCS8_PRIV_KEY_INFO_free(p8inf); 351 EVP_PKEY_free(pkey); 352 release_engine(e); 353 BIO_free_all(out); 354 BIO_free(in); 355 OPENSSL_free(passin); 356 OPENSSL_free(passout); 357 358 return ret; 359 } 360