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 if (n > INT_MAX) 264 goto opthelp; 265 bsize = (int)n; 266 break; 267 case OPT_K: 268 str = opt_arg(); 269 break; 270 case OPT_KFILE: 271 in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); 272 if (in == NULL) 273 goto opthelp; 274 i = BIO_gets(in, buf, sizeof(buf)); 275 BIO_free(in); 276 in = NULL; 277 if (i <= 0) { 278 BIO_printf(bio_err, 279 "%s Can't read key from %s\n", prog, opt_arg()); 280 goto opthelp; 281 } 282 while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) 283 buf[i] = '\0'; 284 if (i <= 0) { 285 BIO_printf(bio_err, "%s: zero length password\n", prog); 286 goto opthelp; 287 } 288 str = buf; 289 break; 290 case OPT_UPPER_K: 291 hkey = opt_arg(); 292 break; 293 case OPT_UPPER_S: 294 hsalt = opt_arg(); 295 break; 296 case OPT_IV: 297 hiv = opt_arg(); 298 break; 299 case OPT_MD: 300 digestname = opt_arg(); 301 break; 302 case OPT_CIPHER: 303 ciphername = opt_unknown(); 304 break; 305 case OPT_ITER: 306 iter = opt_int_arg(); 307 pbkdf2 = 1; 308 break; 309 case OPT_SALTLEN: 310 if (!opt_int(opt_arg(), &saltlen)) 311 goto opthelp; 312 if (saltlen > (int)sizeof(salt)) 313 saltlen = (int)sizeof(salt); 314 break; 315 case OPT_PBKDF2: 316 pbkdf2 = 1; 317 if (iter == 0) /* do not overwrite a chosen value */ 318 iter = PBKDF2_ITER_DEFAULT; 319 break; 320 case OPT_NONE: 321 cipher = NULL; 322 break; 323 case OPT_SKEYOPT: 324 if ((skeyopts == NULL && 325 (skeyopts = sk_OPENSSL_STRING_new_null()) == NULL) || 326 sk_OPENSSL_STRING_push(skeyopts, opt_arg()) == 0) { 327 BIO_printf(bio_err, "%s: out of memory\n", prog); 328 goto end; 329 } 330 break; 331 case OPT_SKEYMGMT: 332 skeymgmt = opt_arg(); 333 break; 334 case OPT_R_CASES: 335 if (!opt_rand(o)) 336 goto end; 337 break; 338 case OPT_PROV_CASES: 339 if (!opt_provider(o)) 340 goto end; 341 break; 342 } 343 } 344 345 /* No extra arguments. */ 346 if (!opt_check_rest_arg(NULL)) 347 goto opthelp; 348 if (!app_RAND_load()) 349 goto end; 350 if (saltlen == 0 || pbkdf2 == 0) 351 saltlen = PKCS5_SALT_LEN; 352 353 /* Get the cipher name, either from progname (if set) or flag. */ 354 if (!opt_cipher(ciphername, &cipher)) 355 goto opthelp; 356 if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_WRAP_MODE)) { 357 wrap = 1; 358 streamable = 0; 359 } 360 if (digestname != NULL) { 361 if (!opt_md(digestname, &dgst)) 362 goto opthelp; 363 } 364 if (dgst == NULL) 365 dgst = (EVP_MD *)EVP_sha256(); 366 367 if (iter == 0) 368 iter = 1; 369 370 /* It must be large enough for a base64 encoded line */ 371 if (base64 && bsize < 80) 372 bsize = 80; 373 if (verbose) 374 BIO_printf(bio_err, "bufsize=%d\n", bsize); 375 376 #ifndef OPENSSL_NO_ZLIB 377 if (do_zlib) 378 base64 = 0; 379 #endif 380 if (do_brotli) 381 base64 = 0; 382 if (do_zstd) 383 base64 = 0; 384 385 if (base64) { 386 if (enc) 387 outformat = FORMAT_BASE64; 388 else 389 informat = FORMAT_BASE64; 390 } 391 392 strbuf = app_malloc(SIZE, "strbuf"); 393 buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); 394 395 if (infile == NULL) { 396 if (!streamable && printkey != 2) { /* if just print key and exit, it's ok */ 397 BIO_printf(bio_err, "Unstreamable cipher mode\n"); 398 goto end; 399 } 400 in = dup_bio_in(informat); 401 } else { 402 in = bio_open_default(infile, 'r', informat); 403 } 404 if (in == NULL) 405 goto end; 406 407 if (str == NULL && passarg != NULL) { 408 if (!app_passwd(passarg, NULL, &pass, NULL)) { 409 BIO_printf(bio_err, "Error getting password\n"); 410 goto end; 411 } 412 str = pass; 413 } 414 415 if ((str == NULL) && (cipher != NULL) && (hkey == NULL) && (skeyopts == NULL)) { 416 if (1) { 417 #ifndef OPENSSL_NO_UI_CONSOLE 418 for (;;) { 419 char prompt[200]; 420 421 BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", 422 EVP_CIPHER_get0_name(cipher), 423 (enc) ? "encryption" : "decryption"); 424 strbuf[0] = '\0'; 425 i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc); 426 if (i == 0) { 427 if (strbuf[0] == '\0') { 428 ret = 1; 429 goto end; 430 } 431 str = strbuf; 432 break; 433 } 434 if (i < 0) { 435 BIO_printf(bio_err, "bad password read\n"); 436 goto end; 437 } 438 } 439 } else { 440 #endif 441 BIO_printf(bio_err, "password required\n"); 442 goto end; 443 } 444 } 445 446 out = bio_open_default(outfile, 'w', outformat); 447 if (out == NULL) 448 goto end; 449 450 if (debug) { 451 BIO_set_callback_ex(in, BIO_debug_callback_ex); 452 BIO_set_callback_ex(out, BIO_debug_callback_ex); 453 BIO_set_callback_arg(in, (char *)bio_err); 454 BIO_set_callback_arg(out, (char *)bio_err); 455 } 456 457 rbio = in; 458 wbio = out; 459 460 #ifndef OPENSSL_NO_COMP 461 # ifndef OPENSSL_NO_ZLIB 462 if (do_zlib) { 463 if ((bzl = BIO_new(BIO_f_zlib())) == NULL) 464 goto end; 465 if (debug) { 466 BIO_set_callback_ex(bzl, BIO_debug_callback_ex); 467 BIO_set_callback_arg(bzl, (char *)bio_err); 468 } 469 if (enc) 470 wbio = BIO_push(bzl, wbio); 471 else 472 rbio = BIO_push(bzl, rbio); 473 } 474 # endif 475 476 if (do_brotli) { 477 if ((bbrot = BIO_new(BIO_f_brotli())) == NULL) 478 goto end; 479 if (debug) { 480 BIO_set_callback_ex(bbrot, BIO_debug_callback_ex); 481 BIO_set_callback_arg(bbrot, (char *)bio_err); 482 } 483 if (enc) 484 wbio = BIO_push(bbrot, wbio); 485 else 486 rbio = BIO_push(bbrot, rbio); 487 } 488 489 if (do_zstd) { 490 if ((bzstd = BIO_new(BIO_f_zstd())) == NULL) 491 goto end; 492 if (debug) { 493 BIO_set_callback_ex(bzstd, BIO_debug_callback_ex); 494 BIO_set_callback_arg(bzstd, (char *)bio_err); 495 } 496 if (enc) 497 wbio = BIO_push(bzstd, wbio); 498 else 499 rbio = BIO_push(bzstd, rbio); 500 } 501 #endif 502 503 if (base64) { 504 if ((b64 = BIO_new(BIO_f_base64())) == NULL) 505 goto end; 506 if (debug) { 507 BIO_set_callback_ex(b64, BIO_debug_callback_ex); 508 BIO_set_callback_arg(b64, (char *)bio_err); 509 } 510 if (olb64) 511 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); 512 if (enc) 513 wbio = BIO_push(b64, wbio); 514 else 515 rbio = BIO_push(b64, rbio); 516 } 517 518 if (cipher != NULL) { 519 if (str != NULL) { /* a passphrase is available */ 520 /* 521 * Salt handling: if encrypting generate a salt if not supplied, 522 * and write to output BIO. If decrypting use salt from input BIO 523 * if not given with args 524 */ 525 unsigned char *sptr; 526 size_t str_len = strlen(str); 527 528 if (nosalt) { 529 sptr = NULL; 530 } else { 531 if (hsalt != NULL && !set_hex(hsalt, salt, saltlen)) { 532 BIO_printf(bio_err, "invalid hex salt value\n"); 533 goto end; 534 } 535 if (enc) { /* encryption */ 536 if (hsalt == NULL) { 537 if (RAND_bytes(salt, saltlen) <= 0) { 538 BIO_printf(bio_err, "RAND_bytes failed\n"); 539 goto end; 540 } 541 /* 542 * If -P option then don't bother writing. 543 * If salt is given, shouldn't either ? 544 */ 545 if ((printkey != 2) 546 && (BIO_write(wbio, magic, 547 sizeof(magic) - 1) != sizeof(magic) - 1 548 || BIO_write(wbio, 549 (char *)salt, 550 saltlen) != saltlen)) { 551 BIO_printf(bio_err, "error writing output file\n"); 552 goto end; 553 } 554 } 555 } else { /* decryption */ 556 if (hsalt == NULL) { 557 if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf)) { 558 BIO_printf(bio_err, "error reading input file\n"); 559 goto end; 560 } 561 if (memcmp(mbuf, magic, sizeof(mbuf)) == 0) { /* file IS salted */ 562 if (BIO_read(rbio, salt, 563 saltlen) != saltlen) { 564 BIO_printf(bio_err, "error reading input file\n"); 565 goto end; 566 } 567 } else { /* file is NOT salted, NO salt available */ 568 BIO_printf(bio_err, "bad magic number\n"); 569 goto end; 570 } 571 } 572 } 573 sptr = salt; 574 } 575 576 if (pbkdf2 == 1) { 577 /* 578 * derive key and default iv 579 * concatenated into a temporary buffer 580 */ 581 unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH]; 582 int iklen = EVP_CIPHER_get_key_length(cipher); 583 int ivlen = EVP_CIPHER_get_iv_length(cipher); 584 /* not needed if HASH_UPDATE() is fixed : */ 585 int islen = (sptr != NULL ? saltlen : 0); 586 587 if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen, 588 iter, dgst, iklen+ivlen, tmpkeyiv)) { 589 BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n"); 590 goto end; 591 } 592 /* split and move data back to global buffer */ 593 memcpy(key, tmpkeyiv, iklen); 594 memcpy(iv, tmpkeyiv+iklen, ivlen); 595 rawkey_set = 1; 596 } else { 597 BIO_printf(bio_err, "*** WARNING : " 598 "deprecated key derivation used.\n" 599 "Using -iter or -pbkdf2 would be better.\n"); 600 if (!EVP_BytesToKey(cipher, dgst, sptr, 601 (unsigned char *)str, str_len, 602 1, key, iv)) { 603 BIO_printf(bio_err, "EVP_BytesToKey failed\n"); 604 goto end; 605 } 606 rawkey_set = 1; 607 } 608 /* 609 * zero the complete buffer or the string passed from the command 610 * line. 611 */ 612 if (str == strbuf) 613 OPENSSL_cleanse(str, SIZE); 614 else 615 OPENSSL_cleanse(str, str_len); 616 } 617 if (hiv != NULL) { 618 int siz = EVP_CIPHER_get_iv_length(cipher); 619 620 if (siz == 0) { 621 BIO_printf(bio_err, "warning: iv not used by this cipher\n"); 622 } else if (!set_hex(hiv, iv, siz)) { 623 BIO_printf(bio_err, "invalid hex iv value\n"); 624 goto end; 625 } 626 } 627 if ((hiv == NULL) && (str == NULL) 628 && EVP_CIPHER_get_iv_length(cipher) != 0 629 && wrap == 0) { 630 /* 631 * No IV was explicitly set and no IV was generated. 632 * Hence the IV is undefined, making correct decryption impossible. 633 */ 634 BIO_printf(bio_err, "iv undefined\n"); 635 goto end; 636 } 637 if (hkey != NULL) { 638 if (!set_hex(hkey, key, EVP_CIPHER_get_key_length(cipher))) { 639 BIO_printf(bio_err, "invalid hex key value\n"); 640 goto end; 641 } 642 /* wiping secret data as we no longer need it */ 643 cleanse(hkey); 644 rawkey_set = 1; 645 } 646 647 /* 648 * At this moment we know whether we trying to use raw bytes as the key 649 * or an opaque symmetric key. We do not allow both options simultaneously. 650 */ 651 if (rawkey_set > 0 && skeyopts != NULL) { 652 BIO_printf(bio_err, "Either a raw key or the 'skeyopt' args must be used.\n"); 653 goto end; 654 } 655 656 if ((benc = BIO_new(BIO_f_cipher())) == NULL) 657 goto end; 658 659 /* 660 * Since we may be changing parameters work on the encryption context 661 * rather than calling BIO_set_cipher(). 662 */ 663 664 BIO_get_cipher_ctx(benc, &ctx); 665 666 if (wrap == 1) 667 EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW); 668 669 if (rawkey_set) { 670 if (!EVP_CipherInit_ex(ctx, cipher, e, key, 671 (hiv == NULL && wrap == 1 ? NULL : iv), enc)) { 672 BIO_printf(bio_err, "Error setting cipher %s\n", 673 EVP_CIPHER_get0_name(cipher)); 674 ERR_print_errors(bio_err); 675 goto end; 676 } 677 } else { 678 OSSL_PARAM *params = NULL; 679 680 mgmt = EVP_SKEYMGMT_fetch(app_get0_libctx(), 681 skeymgmt != NULL ? skeymgmt : EVP_CIPHER_name(cipher), 682 app_get0_propq()); 683 if (mgmt == NULL) 684 goto end; 685 686 params = app_params_new_from_opts(skeyopts, 687 EVP_SKEYMGMT_get0_imp_settable_params(mgmt)); 688 if (params == NULL) 689 goto end; 690 691 skey = EVP_SKEY_import(app_get0_libctx(), EVP_SKEYMGMT_get0_name(mgmt), 692 app_get0_propq(), OSSL_SKEYMGMT_SELECT_ALL, params); 693 OSSL_PARAM_free(params); 694 if (skey == NULL) { 695 BIO_printf(bio_err, "Error creating opaque key object for skeymgmt %s\n", 696 skeymgmt ? skeymgmt : EVP_CIPHER_name(cipher)); 697 ERR_print_errors(bio_err); 698 goto end; 699 } 700 701 if (!EVP_CipherInit_SKEY(ctx, cipher, skey, 702 (hiv == NULL && wrap == 1 ? NULL : iv), 703 EVP_CIPHER_get_iv_length(cipher), enc, NULL)) { 704 BIO_printf(bio_err, "Error setting an opaque key for cipher %s\n", 705 EVP_CIPHER_get0_name(cipher)); 706 ERR_print_errors(bio_err); 707 goto end; 708 } 709 } 710 711 if (nopad) 712 EVP_CIPHER_CTX_set_padding(ctx, 0); 713 714 if (debug) { 715 BIO_set_callback_ex(benc, BIO_debug_callback_ex); 716 BIO_set_callback_arg(benc, (char *)bio_err); 717 } 718 719 if (printkey) { 720 if (!nosalt) { 721 printf("salt="); 722 for (i = 0; i < (int)saltlen; i++) 723 printf("%02X", salt[i]); 724 printf("\n"); 725 } 726 if (EVP_CIPHER_get_key_length(cipher) > 0) { 727 printf("key="); 728 for (i = 0; i < EVP_CIPHER_get_key_length(cipher); i++) 729 printf("%02X", key[i]); 730 printf("\n"); 731 } 732 if (EVP_CIPHER_get_iv_length(cipher) > 0) { 733 printf("iv ="); 734 for (i = 0; i < EVP_CIPHER_get_iv_length(cipher); i++) 735 printf("%02X", iv[i]); 736 printf("\n"); 737 } 738 if (printkey == 2) { 739 ret = 0; 740 goto end; 741 } 742 } 743 } 744 745 /* Only encrypt/decrypt as we write the file */ 746 if (benc != NULL) 747 wbio = BIO_push(benc, wbio); 748 749 while (BIO_pending(rbio) || !BIO_eof(rbio)) { 750 inl = BIO_read(rbio, (char *)buff, bsize); 751 if (inl <= 0) 752 break; 753 if (!streamable && !BIO_eof(rbio)) { /* do not output data */ 754 BIO_printf(bio_err, "Unstreamable cipher mode\n"); 755 goto end; 756 } 757 if (BIO_write(wbio, (char *)buff, inl) != inl) { 758 BIO_printf(bio_err, "error writing output file\n"); 759 goto end; 760 } 761 if (!streamable) 762 break; 763 } 764 if (!BIO_flush(wbio)) { 765 if (enc) 766 BIO_printf(bio_err, "bad encrypt\n"); 767 else 768 BIO_printf(bio_err, "bad decrypt\n"); 769 goto end; 770 } 771 772 ret = 0; 773 if (verbose) { 774 BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in)); 775 BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); 776 } 777 end: 778 ERR_print_errors(bio_err); 779 sk_OPENSSL_STRING_free(skeyopts); 780 EVP_SKEYMGMT_free(mgmt); 781 EVP_SKEY_free(skey); 782 OPENSSL_free(strbuf); 783 OPENSSL_free(buff); 784 BIO_free(in); 785 BIO_free_all(out); 786 BIO_free(benc); 787 BIO_free(b64); 788 EVP_MD_free(dgst); 789 EVP_CIPHER_free(cipher); 790 #ifndef OPENSSL_NO_ZLIB 791 BIO_free(bzl); 792 #endif 793 BIO_free(bbrot); 794 BIO_free(bzstd); 795 release_engine(e); 796 OPENSSL_free(pass); 797 return ret; 798 } 799 800 static void show_ciphers(const OBJ_NAME *name, void *arg) 801 { 802 struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; 803 const EVP_CIPHER *cipher; 804 805 if (!islower((unsigned char)*name->name)) 806 return; 807 808 /* Filter out ciphers that we cannot use */ 809 cipher = EVP_get_cipherbyname(name->name); 810 if (cipher == NULL 811 || (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 812 || EVP_CIPHER_get_mode(cipher) == EVP_CIPH_XTS_MODE) 813 return; 814 815 BIO_printf(dec->bio, "-%-25s", name->name); 816 if (++dec->n == 3) { 817 BIO_printf(dec->bio, "\n"); 818 dec->n = 0; 819 } else 820 BIO_printf(dec->bio, " "); 821 } 822 823 static int set_hex(const char *in, unsigned char *out, int size) 824 { 825 int i, n; 826 unsigned char j; 827 828 i = size * 2; 829 n = strlen(in); 830 if (n > i) { 831 BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); 832 n = i; /* ignore exceeding part */ 833 } else if (n < i) { 834 BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); 835 } 836 837 memset(out, 0, size); 838 for (i = 0; i < n; i++) { 839 j = (unsigned char)*in++; 840 if (!isxdigit(j)) { 841 BIO_printf(bio_err, "non-hex digit\n"); 842 return 0; 843 } 844 j = (unsigned char)OPENSSL_hexchar2int(j); 845 if (i & 1) 846 out[i / 2] |= j; 847 else 848 out[i / 2] = (j << 4); 849 } 850 return 1; 851 } 852