1 /* 2 * Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (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 <limits.h> 14 #include "apps.h" 15 #include "progs.h" 16 #include <openssl/bio.h> 17 #include <openssl/err.h> 18 #include <openssl/evp.h> 19 #include <openssl/objects.h> 20 #include <openssl/x509.h> 21 #include <openssl/rand.h> 22 #include <openssl/pem.h> 23 #ifndef OPENSSL_NO_COMP 24 # include <openssl/comp.h> 25 #endif 26 #include <ctype.h> 27 28 #undef SIZE 29 #undef BSIZE 30 #define SIZE (512) 31 #define BSIZE (8*1024) 32 33 #define PBKDF2_ITER_DEFAULT 10000 34 #define STR(a) XSTR(a) 35 #define XSTR(a) #a 36 37 static int set_hex(const char *in, unsigned char *out, int size); 38 static void show_ciphers(const OBJ_NAME *name, void *bio_); 39 40 struct doall_enc_ciphers { 41 BIO *bio; 42 int n; 43 }; 44 45 typedef enum OPTION_choice { 46 OPT_COMMON, 47 OPT_LIST, 48 OPT_E, OPT_IN, OPT_OUT, OPT_PASS, OPT_ENGINE, OPT_D, OPT_P, OPT_V, 49 OPT_NOPAD, OPT_SALT, OPT_NOSALT, OPT_DEBUG, OPT_UPPER_P, OPT_UPPER_A, 50 OPT_A, OPT_Z, OPT_BUFSIZE, OPT_K, OPT_KFILE, OPT_UPPER_K, OPT_NONE, 51 OPT_UPPER_S, OPT_IV, OPT_MD, OPT_ITER, OPT_PBKDF2, OPT_CIPHER, 52 OPT_SALTLEN, OPT_R_ENUM, OPT_PROV_ENUM, 53 OPT_SKEYOPT, OPT_SKEYMGMT 54 } OPTION_CHOICE; 55 56 const OPTIONS enc_options[] = { 57 OPT_SECTION("General"), 58 {"help", OPT_HELP, '-', "Display this summary"}, 59 {"list", OPT_LIST, '-', "List ciphers"}, 60 #ifndef OPENSSL_NO_DEPRECATED_3_0 61 {"ciphers", OPT_LIST, '-', "Alias for -list"}, 62 #endif 63 {"e", OPT_E, '-', "Encrypt"}, 64 {"d", OPT_D, '-', "Decrypt"}, 65 {"p", OPT_P, '-', "Print the iv/key"}, 66 {"P", OPT_UPPER_P, '-', "Print the iv/key and exit"}, 67 #ifndef OPENSSL_NO_ENGINE 68 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 69 #endif 70 71 OPT_SECTION("Input"), 72 {"in", OPT_IN, '<', "Input file"}, 73 {"k", OPT_K, 's', "Passphrase"}, 74 {"kfile", OPT_KFILE, '<', "Read passphrase from file"}, 75 76 OPT_SECTION("Output"), 77 {"out", OPT_OUT, '>', "Output file"}, 78 {"pass", OPT_PASS, 's', "Passphrase source"}, 79 {"v", OPT_V, '-', "Verbose output"}, 80 {"a", OPT_A, '-', "Base64 encode/decode, depending on encryption flag"}, 81 {"base64", OPT_A, '-', "Same as option -a"}, 82 {"A", OPT_UPPER_A, '-', 83 "Used with -[base64|a] to specify base64 buffer as a single line"}, 84 85 OPT_SECTION("Encryption"), 86 {"nopad", OPT_NOPAD, '-', "Disable standard block padding"}, 87 {"salt", OPT_SALT, '-', "Use salt in the KDF (default)"}, 88 {"nosalt", OPT_NOSALT, '-', "Do not use salt in the KDF"}, 89 {"debug", OPT_DEBUG, '-', "Print debug info"}, 90 91 {"bufsize", OPT_BUFSIZE, 's', "Buffer size"}, 92 {"K", OPT_UPPER_K, 's', "Raw key, in hex"}, 93 {"S", OPT_UPPER_S, 's', "Salt, in hex"}, 94 {"iv", OPT_IV, 's', "IV in hex"}, 95 {"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"}, 96 {"iter", OPT_ITER, 'p', 97 "Specify the iteration count and force the use of PBKDF2"}, 98 {OPT_MORE_STR, 0, 0, "Default: " STR(PBKDF2_ITER_DEFAULT)}, 99 {"pbkdf2", OPT_PBKDF2, '-', 100 "Use password-based key derivation function 2 (PBKDF2)"}, 101 {OPT_MORE_STR, 0, 0, 102 "Use -iter to change the iteration count from " STR(PBKDF2_ITER_DEFAULT)}, 103 {"none", OPT_NONE, '-', "Don't encrypt"}, 104 {"saltlen", OPT_SALTLEN, 'p', "Specify the PBKDF2 salt length (in bytes)"}, 105 {OPT_MORE_STR, 0, 0, "Default: 16"}, 106 #ifndef OPENSSL_NO_ZLIB 107 {"z", OPT_Z, '-', "Compress or decompress encrypted data using zlib"}, 108 #endif 109 {"skeyopt", OPT_SKEYOPT, 's', "Key options as opt:value for opaque symmetric key handling"}, 110 {"skeymgmt", OPT_SKEYMGMT, 's', "Symmetric key management name for opaque symmetric key handling"}, 111 {"", OPT_CIPHER, '-', "Any supported cipher"}, 112 113 OPT_R_OPTIONS, 114 OPT_PROV_OPTIONS, 115 {NULL} 116 }; 117 118 int enc_main(int argc, char **argv) 119 { 120 static char buf[128]; 121 static const char magic[] = "Salted__"; 122 ENGINE *e = NULL; 123 BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = 124 NULL, *wbio = NULL; 125 EVP_CIPHER_CTX *ctx = NULL; 126 EVP_CIPHER *cipher = NULL; 127 EVP_MD *dgst = NULL; 128 const char *digestname = NULL; 129 char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p; 130 char *infile = NULL, *outfile = NULL, *prog; 131 char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL; 132 const char *ciphername = NULL; 133 char mbuf[sizeof(magic) - 1]; 134 OPTION_CHOICE o; 135 int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0; 136 int enc = 1, printkey = 0, i, k; 137 int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY; 138 int ret = 1, inl, nopad = 0; 139 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; 140 int rawkey_set = 0; 141 unsigned char *buff = NULL, salt[EVP_MAX_IV_LENGTH]; 142 int saltlen = 0; 143 int pbkdf2 = 0; 144 int iter = 0; 145 long n; 146 int streamable = 1; 147 int wrap = 0; 148 struct doall_enc_ciphers dec; 149 #ifndef OPENSSL_NO_ZLIB 150 int do_zlib = 0; 151 BIO *bzl = NULL; 152 #endif 153 int do_brotli = 0; 154 BIO *bbrot = NULL; 155 int do_zstd = 0; 156 BIO *bzstd = NULL; 157 STACK_OF(OPENSSL_STRING) *skeyopts = NULL; 158 const char *skeymgmt = NULL; 159 EVP_SKEY *skey = NULL; 160 EVP_SKEYMGMT *mgmt = NULL; 161 162 /* first check the command name */ 163 if (strcmp(argv[0], "base64") == 0) 164 base64 = 1; 165 #ifndef OPENSSL_NO_ZLIB 166 else if (strcmp(argv[0], "zlib") == 0) 167 do_zlib = 1; 168 #endif 169 #ifndef OPENSSL_NO_BROTLI 170 else if (strcmp(argv[0], "brotli") == 0) 171 do_brotli = 1; 172 #endif 173 #ifndef OPENSSL_NO_ZSTD 174 else if (strcmp(argv[0], "zstd") == 0) 175 do_zstd = 1; 176 #endif 177 else if (strcmp(argv[0], "enc") != 0) 178 ciphername = argv[0]; 179 180 opt_set_unknown_name("cipher"); 181 prog = opt_init(argc, argv, enc_options); 182 while ((o = opt_next()) != OPT_EOF) { 183 switch (o) { 184 case OPT_EOF: 185 case OPT_ERR: 186 opthelp: 187 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 188 goto end; 189 case OPT_HELP: 190 opt_help(enc_options); 191 ret = 0; 192 goto end; 193 case OPT_LIST: 194 BIO_printf(bio_out, "Supported ciphers:\n"); 195 dec.bio = bio_out; 196 dec.n = 0; 197 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, 198 show_ciphers, &dec); 199 BIO_printf(bio_out, "\n"); 200 ret = 0; 201 goto end; 202 case OPT_E: 203 enc = 1; 204 break; 205 case OPT_IN: 206 infile = opt_arg(); 207 break; 208 case OPT_OUT: 209 outfile = opt_arg(); 210 break; 211 case OPT_PASS: 212 passarg = opt_arg(); 213 break; 214 case OPT_ENGINE: 215 e = setup_engine(opt_arg(), 0); 216 break; 217 case OPT_D: 218 enc = 0; 219 break; 220 case OPT_P: 221 printkey = 1; 222 break; 223 case OPT_V: 224 verbose = 1; 225 break; 226 case OPT_NOPAD: 227 nopad = 1; 228 break; 229 case OPT_SALT: 230 nosalt = 0; 231 break; 232 case OPT_NOSALT: 233 nosalt = 1; 234 break; 235 case OPT_DEBUG: 236 debug = 1; 237 break; 238 case OPT_UPPER_P: 239 printkey = 2; 240 break; 241 case OPT_UPPER_A: 242 olb64 = 1; 243 break; 244 case OPT_A: 245 base64 = 1; 246 break; 247 case OPT_Z: 248 #ifndef OPENSSL_NO_ZLIB 249 do_zlib = 1; 250 #endif 251 break; 252 case OPT_BUFSIZE: 253 p = opt_arg(); 254 i = (int)strlen(p) - 1; 255 k = i >= 1 && p[i] == 'k'; 256 if (k) 257 p[i] = '\0'; 258 if (!opt_long(opt_arg(), &n) 259 || n < 0 || (k && n >= LONG_MAX / 1024)) 260 goto opthelp; 261 if (k) 262 n *= 1024; 263 bsize = (int)n; 264 break; 265 case OPT_K: 266 str = opt_arg(); 267 break; 268 case OPT_KFILE: 269 in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); 270 if (in == NULL) 271 goto opthelp; 272 i = BIO_gets(in, buf, sizeof(buf)); 273 BIO_free(in); 274 in = NULL; 275 if (i <= 0) { 276 BIO_printf(bio_err, 277 "%s Can't read key from %s\n", prog, opt_arg()); 278 goto opthelp; 279 } 280 while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) 281 buf[i] = '\0'; 282 if (i <= 0) { 283 BIO_printf(bio_err, "%s: zero length password\n", prog); 284 goto opthelp; 285 } 286 str = buf; 287 break; 288 case OPT_UPPER_K: 289 hkey = opt_arg(); 290 break; 291 case OPT_UPPER_S: 292 hsalt = opt_arg(); 293 break; 294 case OPT_IV: 295 hiv = opt_arg(); 296 break; 297 case OPT_MD: 298 digestname = opt_arg(); 299 break; 300 case OPT_CIPHER: 301 ciphername = opt_unknown(); 302 break; 303 case OPT_ITER: 304 iter = opt_int_arg(); 305 pbkdf2 = 1; 306 break; 307 case OPT_SALTLEN: 308 if (!opt_int(opt_arg(), &saltlen)) 309 goto opthelp; 310 if (saltlen > (int)sizeof(salt)) 311 saltlen = (int)sizeof(salt); 312 break; 313 case OPT_PBKDF2: 314 pbkdf2 = 1; 315 if (iter == 0) /* do not overwrite a chosen value */ 316 iter = PBKDF2_ITER_DEFAULT; 317 break; 318 case OPT_NONE: 319 cipher = NULL; 320 break; 321 case OPT_SKEYOPT: 322 if ((skeyopts == NULL && 323 (skeyopts = sk_OPENSSL_STRING_new_null()) == NULL) || 324 sk_OPENSSL_STRING_push(skeyopts, opt_arg()) == 0) { 325 BIO_printf(bio_err, "%s: out of memory\n", prog); 326 goto end; 327 } 328 break; 329 case OPT_SKEYMGMT: 330 skeymgmt = opt_arg(); 331 break; 332 case OPT_R_CASES: 333 if (!opt_rand(o)) 334 goto end; 335 break; 336 case OPT_PROV_CASES: 337 if (!opt_provider(o)) 338 goto end; 339 break; 340 } 341 } 342 343 /* No extra arguments. */ 344 if (!opt_check_rest_arg(NULL)) 345 goto opthelp; 346 if (!app_RAND_load()) 347 goto end; 348 if (saltlen == 0 || pbkdf2 == 0) 349 saltlen = PKCS5_SALT_LEN; 350 351 /* Get the cipher name, either from progname (if set) or flag. */ 352 if (!opt_cipher(ciphername, &cipher)) 353 goto opthelp; 354 if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_WRAP_MODE)) { 355 wrap = 1; 356 streamable = 0; 357 } 358 if (digestname != NULL) { 359 if (!opt_md(digestname, &dgst)) 360 goto opthelp; 361 } 362 if (dgst == NULL) 363 dgst = (EVP_MD *)EVP_sha256(); 364 365 if (iter == 0) 366 iter = 1; 367 368 /* It must be large enough for a base64 encoded line */ 369 if (base64 && bsize < 80) 370 bsize = 80; 371 if (verbose) 372 BIO_printf(bio_err, "bufsize=%d\n", bsize); 373 374 #ifndef OPENSSL_NO_ZLIB 375 if (do_zlib) 376 base64 = 0; 377 #endif 378 if (do_brotli) 379 base64 = 0; 380 if (do_zstd) 381 base64 = 0; 382 383 if (base64) { 384 if (enc) 385 outformat = FORMAT_BASE64; 386 else 387 informat = FORMAT_BASE64; 388 } 389 390 strbuf = app_malloc(SIZE, "strbuf"); 391 buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); 392 393 if (infile == NULL) { 394 if (!streamable && printkey != 2) { /* if just print key and exit, it's ok */ 395 BIO_printf(bio_err, "Unstreamable cipher mode\n"); 396 goto end; 397 } 398 in = dup_bio_in(informat); 399 } else { 400 in = bio_open_default(infile, 'r', informat); 401 } 402 if (in == NULL) 403 goto end; 404 405 if (str == NULL && passarg != NULL) { 406 if (!app_passwd(passarg, NULL, &pass, NULL)) { 407 BIO_printf(bio_err, "Error getting password\n"); 408 goto end; 409 } 410 str = pass; 411 } 412 413 if ((str == NULL) && (cipher != NULL) && (hkey == NULL) && (skeyopts == NULL)) { 414 if (1) { 415 #ifndef OPENSSL_NO_UI_CONSOLE 416 for (;;) { 417 char prompt[200]; 418 419 BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", 420 EVP_CIPHER_get0_name(cipher), 421 (enc) ? "encryption" : "decryption"); 422 strbuf[0] = '\0'; 423 i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc); 424 if (i == 0) { 425 if (strbuf[0] == '\0') { 426 ret = 1; 427 goto end; 428 } 429 str = strbuf; 430 break; 431 } 432 if (i < 0) { 433 BIO_printf(bio_err, "bad password read\n"); 434 goto end; 435 } 436 } 437 } else { 438 #endif 439 BIO_printf(bio_err, "password required\n"); 440 goto end; 441 } 442 } 443 444 out = bio_open_default(outfile, 'w', outformat); 445 if (out == NULL) 446 goto end; 447 448 if (debug) { 449 BIO_set_callback_ex(in, BIO_debug_callback_ex); 450 BIO_set_callback_ex(out, BIO_debug_callback_ex); 451 BIO_set_callback_arg(in, (char *)bio_err); 452 BIO_set_callback_arg(out, (char *)bio_err); 453 } 454 455 rbio = in; 456 wbio = out; 457 458 #ifndef OPENSSL_NO_COMP 459 # ifndef OPENSSL_NO_ZLIB 460 if (do_zlib) { 461 if ((bzl = BIO_new(BIO_f_zlib())) == NULL) 462 goto end; 463 if (debug) { 464 BIO_set_callback_ex(bzl, BIO_debug_callback_ex); 465 BIO_set_callback_arg(bzl, (char *)bio_err); 466 } 467 if (enc) 468 wbio = BIO_push(bzl, wbio); 469 else 470 rbio = BIO_push(bzl, rbio); 471 } 472 # endif 473 474 if (do_brotli) { 475 if ((bbrot = BIO_new(BIO_f_brotli())) == NULL) 476 goto end; 477 if (debug) { 478 BIO_set_callback_ex(bbrot, BIO_debug_callback_ex); 479 BIO_set_callback_arg(bbrot, (char *)bio_err); 480 } 481 if (enc) 482 wbio = BIO_push(bbrot, wbio); 483 else 484 rbio = BIO_push(bbrot, rbio); 485 } 486 487 if (do_zstd) { 488 if ((bzstd = BIO_new(BIO_f_zstd())) == NULL) 489 goto end; 490 if (debug) { 491 BIO_set_callback_ex(bzstd, BIO_debug_callback_ex); 492 BIO_set_callback_arg(bzstd, (char *)bio_err); 493 } 494 if (enc) 495 wbio = BIO_push(bzstd, wbio); 496 else 497 rbio = BIO_push(bzstd, rbio); 498 } 499 #endif 500 501 if (base64) { 502 if ((b64 = BIO_new(BIO_f_base64())) == NULL) 503 goto end; 504 if (debug) { 505 BIO_set_callback_ex(b64, BIO_debug_callback_ex); 506 BIO_set_callback_arg(b64, (char *)bio_err); 507 } 508 if (olb64) 509 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); 510 if (enc) 511 wbio = BIO_push(b64, wbio); 512 else 513 rbio = BIO_push(b64, rbio); 514 } 515 516 if (cipher != NULL) { 517 if (str != NULL) { /* a passphrase is available */ 518 /* 519 * Salt handling: if encrypting generate a salt if not supplied, 520 * and write to output BIO. If decrypting use salt from input BIO 521 * if not given with args 522 */ 523 unsigned char *sptr; 524 size_t str_len = strlen(str); 525 526 if (nosalt) { 527 sptr = NULL; 528 } else { 529 if (hsalt != NULL && !set_hex(hsalt, salt, saltlen)) { 530 BIO_printf(bio_err, "invalid hex salt value\n"); 531 goto end; 532 } 533 if (enc) { /* encryption */ 534 if (hsalt == NULL) { 535 if (RAND_bytes(salt, saltlen) <= 0) { 536 BIO_printf(bio_err, "RAND_bytes failed\n"); 537 goto end; 538 } 539 /* 540 * If -P option then don't bother writing. 541 * If salt is given, shouldn't either ? 542 */ 543 if ((printkey != 2) 544 && (BIO_write(wbio, magic, 545 sizeof(magic) - 1) != sizeof(magic) - 1 546 || BIO_write(wbio, 547 (char *)salt, 548 saltlen) != saltlen)) { 549 BIO_printf(bio_err, "error writing output file\n"); 550 goto end; 551 } 552 } 553 } else { /* decryption */ 554 if (hsalt == NULL) { 555 if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf)) { 556 BIO_printf(bio_err, "error reading input file\n"); 557 goto end; 558 } 559 if (memcmp(mbuf, magic, sizeof(mbuf)) == 0) { /* file IS salted */ 560 if (BIO_read(rbio, salt, 561 saltlen) != saltlen) { 562 BIO_printf(bio_err, "error reading input file\n"); 563 goto end; 564 } 565 } else { /* file is NOT salted, NO salt available */ 566 BIO_printf(bio_err, "bad magic number\n"); 567 goto end; 568 } 569 } 570 } 571 sptr = salt; 572 } 573 574 if (pbkdf2 == 1) { 575 /* 576 * derive key and default iv 577 * concatenated into a temporary buffer 578 */ 579 unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH]; 580 int iklen = EVP_CIPHER_get_key_length(cipher); 581 int ivlen = EVP_CIPHER_get_iv_length(cipher); 582 /* not needed if HASH_UPDATE() is fixed : */ 583 int islen = (sptr != NULL ? saltlen : 0); 584 585 if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen, 586 iter, dgst, iklen+ivlen, tmpkeyiv)) { 587 BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n"); 588 goto end; 589 } 590 /* split and move data back to global buffer */ 591 memcpy(key, tmpkeyiv, iklen); 592 memcpy(iv, tmpkeyiv+iklen, ivlen); 593 rawkey_set = 1; 594 } else { 595 BIO_printf(bio_err, "*** WARNING : " 596 "deprecated key derivation used.\n" 597 "Using -iter or -pbkdf2 would be better.\n"); 598 if (!EVP_BytesToKey(cipher, dgst, sptr, 599 (unsigned char *)str, str_len, 600 1, key, iv)) { 601 BIO_printf(bio_err, "EVP_BytesToKey failed\n"); 602 goto end; 603 } 604 rawkey_set = 1; 605 } 606 /* 607 * zero the complete buffer or the string passed from the command 608 * line. 609 */ 610 if (str == strbuf) 611 OPENSSL_cleanse(str, SIZE); 612 else 613 OPENSSL_cleanse(str, str_len); 614 } 615 if (hiv != NULL) { 616 int siz = EVP_CIPHER_get_iv_length(cipher); 617 618 if (siz == 0) { 619 BIO_printf(bio_err, "warning: iv not used by this cipher\n"); 620 } else if (!set_hex(hiv, iv, siz)) { 621 BIO_printf(bio_err, "invalid hex iv value\n"); 622 goto end; 623 } 624 } 625 if ((hiv == NULL) && (str == NULL) 626 && EVP_CIPHER_get_iv_length(cipher) != 0 627 && wrap == 0) { 628 /* 629 * No IV was explicitly set and no IV was generated. 630 * Hence the IV is undefined, making correct decryption impossible. 631 */ 632 BIO_printf(bio_err, "iv undefined\n"); 633 goto end; 634 } 635 if (hkey != NULL) { 636 if (!set_hex(hkey, key, EVP_CIPHER_get_key_length(cipher))) { 637 BIO_printf(bio_err, "invalid hex key value\n"); 638 goto end; 639 } 640 /* wiping secret data as we no longer need it */ 641 cleanse(hkey); 642 rawkey_set = 1; 643 } 644 645 /* 646 * At this moment we know whether we trying to use raw bytes as the key 647 * or an opaque symmetric key. We do not allow both options simultaneously. 648 */ 649 if (rawkey_set > 0 && skeyopts != NULL) { 650 BIO_printf(bio_err, "Either a raw key or the 'skeyopt' args must be used.\n"); 651 goto end; 652 } 653 654 if ((benc = BIO_new(BIO_f_cipher())) == NULL) 655 goto end; 656 657 /* 658 * Since we may be changing parameters work on the encryption context 659 * rather than calling BIO_set_cipher(). 660 */ 661 662 BIO_get_cipher_ctx(benc, &ctx); 663 664 if (wrap == 1) 665 EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW); 666 667 if (rawkey_set) { 668 if (!EVP_CipherInit_ex(ctx, cipher, e, key, 669 (hiv == NULL && wrap == 1 ? NULL : iv), enc)) { 670 BIO_printf(bio_err, "Error setting cipher %s\n", 671 EVP_CIPHER_get0_name(cipher)); 672 ERR_print_errors(bio_err); 673 goto end; 674 } 675 } else { 676 OSSL_PARAM *params = NULL; 677 678 mgmt = EVP_SKEYMGMT_fetch(app_get0_libctx(), 679 skeymgmt != NULL ? skeymgmt : EVP_CIPHER_name(cipher), 680 app_get0_propq()); 681 if (mgmt == NULL) 682 goto end; 683 684 params = app_params_new_from_opts(skeyopts, 685 EVP_SKEYMGMT_get0_imp_settable_params(mgmt)); 686 if (params == NULL) 687 goto end; 688 689 skey = EVP_SKEY_import(app_get0_libctx(), EVP_SKEYMGMT_get0_name(mgmt), 690 app_get0_propq(), OSSL_SKEYMGMT_SELECT_ALL, params); 691 OSSL_PARAM_free(params); 692 if (skey == NULL) { 693 BIO_printf(bio_err, "Error creating opaque key object for skeymgmt %s\n", 694 skeymgmt ? skeymgmt : EVP_CIPHER_name(cipher)); 695 ERR_print_errors(bio_err); 696 goto end; 697 } 698 699 if (!EVP_CipherInit_SKEY(ctx, cipher, skey, 700 (hiv == NULL && wrap == 1 ? NULL : iv), 701 EVP_CIPHER_get_iv_length(cipher), enc, NULL)) { 702 BIO_printf(bio_err, "Error setting an opaque key for cipher %s\n", 703 EVP_CIPHER_get0_name(cipher)); 704 ERR_print_errors(bio_err); 705 goto end; 706 } 707 } 708 709 if (nopad) 710 EVP_CIPHER_CTX_set_padding(ctx, 0); 711 712 if (debug) { 713 BIO_set_callback_ex(benc, BIO_debug_callback_ex); 714 BIO_set_callback_arg(benc, (char *)bio_err); 715 } 716 717 if (printkey) { 718 if (!nosalt) { 719 printf("salt="); 720 for (i = 0; i < (int)saltlen; i++) 721 printf("%02X", salt[i]); 722 printf("\n"); 723 } 724 if (EVP_CIPHER_get_key_length(cipher) > 0) { 725 printf("key="); 726 for (i = 0; i < EVP_CIPHER_get_key_length(cipher); i++) 727 printf("%02X", key[i]); 728 printf("\n"); 729 } 730 if (EVP_CIPHER_get_iv_length(cipher) > 0) { 731 printf("iv ="); 732 for (i = 0; i < EVP_CIPHER_get_iv_length(cipher); i++) 733 printf("%02X", iv[i]); 734 printf("\n"); 735 } 736 if (printkey == 2) { 737 ret = 0; 738 goto end; 739 } 740 } 741 } 742 743 /* Only encrypt/decrypt as we write the file */ 744 if (benc != NULL) 745 wbio = BIO_push(benc, wbio); 746 747 while (BIO_pending(rbio) || !BIO_eof(rbio)) { 748 inl = BIO_read(rbio, (char *)buff, bsize); 749 if (inl <= 0) 750 break; 751 if (!streamable && !BIO_eof(rbio)) { /* do not output data */ 752 BIO_printf(bio_err, "Unstreamable cipher mode\n"); 753 goto end; 754 } 755 if (BIO_write(wbio, (char *)buff, inl) != inl) { 756 BIO_printf(bio_err, "error writing output file\n"); 757 goto end; 758 } 759 if (!streamable) 760 break; 761 } 762 if (!BIO_flush(wbio)) { 763 if (enc) 764 BIO_printf(bio_err, "bad encrypt\n"); 765 else 766 BIO_printf(bio_err, "bad decrypt\n"); 767 goto end; 768 } 769 770 ret = 0; 771 if (verbose) { 772 BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in)); 773 BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); 774 } 775 end: 776 ERR_print_errors(bio_err); 777 sk_OPENSSL_STRING_free(skeyopts); 778 EVP_SKEYMGMT_free(mgmt); 779 EVP_SKEY_free(skey); 780 OPENSSL_free(strbuf); 781 OPENSSL_free(buff); 782 BIO_free(in); 783 BIO_free_all(out); 784 BIO_free(benc); 785 BIO_free(b64); 786 EVP_MD_free(dgst); 787 EVP_CIPHER_free(cipher); 788 #ifndef OPENSSL_NO_ZLIB 789 BIO_free(bzl); 790 #endif 791 BIO_free(bbrot); 792 BIO_free(bzstd); 793 release_engine(e); 794 OPENSSL_free(pass); 795 return ret; 796 } 797 798 static void show_ciphers(const OBJ_NAME *name, void *arg) 799 { 800 struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; 801 const EVP_CIPHER *cipher; 802 803 if (!islower((unsigned char)*name->name)) 804 return; 805 806 /* Filter out ciphers that we cannot use */ 807 cipher = EVP_get_cipherbyname(name->name); 808 if (cipher == NULL 809 || (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 810 || EVP_CIPHER_get_mode(cipher) == EVP_CIPH_XTS_MODE) 811 return; 812 813 BIO_printf(dec->bio, "-%-25s", name->name); 814 if (++dec->n == 3) { 815 BIO_printf(dec->bio, "\n"); 816 dec->n = 0; 817 } else 818 BIO_printf(dec->bio, " "); 819 } 820 821 static int set_hex(const char *in, unsigned char *out, int size) 822 { 823 int i, n; 824 unsigned char j; 825 826 i = size * 2; 827 n = strlen(in); 828 if (n > i) { 829 BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); 830 n = i; /* ignore exceeding part */ 831 } else if (n < i) { 832 BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); 833 } 834 835 memset(out, 0, size); 836 for (i = 0; i < n; i++) { 837 j = (unsigned char)*in++; 838 if (!isxdigit(j)) { 839 BIO_printf(bio_err, "non-hex digit\n"); 840 return 0; 841 } 842 j = (unsigned char)OPENSSL_hexchar2int(j); 843 if (i & 1) 844 out[i / 2] |= j; 845 else 846 out[i / 2] = (j << 4); 847 } 848 return 1; 849 } 850