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1.1 ! jsing 1: /* $OpenBSD: enc.c,v 1.39 2014/07/25 06:05:32 doug Exp $ */
! 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
! 3: * All rights reserved.
! 4: *
! 5: * This package is an SSL implementation written
! 6: * by Eric Young (eay@cryptsoft.com).
! 7: * The implementation was written so as to conform with Netscapes SSL.
! 8: *
! 9: * This library is free for commercial and non-commercial use as long as
! 10: * the following conditions are aheared to. The following conditions
! 11: * apply to all code found in this distribution, be it the RC4, RSA,
! 12: * lhash, DES, etc., code; not just the SSL code. The SSL documentation
! 13: * included with this distribution is covered by the same copyright terms
! 14: * except that the holder is Tim Hudson (tjh@cryptsoft.com).
! 15: *
! 16: * Copyright remains Eric Young's, and as such any Copyright notices in
! 17: * the code are not to be removed.
! 18: * If this package is used in a product, Eric Young should be given attribution
! 19: * as the author of the parts of the library used.
! 20: * This can be in the form of a textual message at program startup or
! 21: * in documentation (online or textual) provided with the package.
! 22: *
! 23: * Redistribution and use in source and binary forms, with or without
! 24: * modification, are permitted provided that the following conditions
! 25: * are met:
! 26: * 1. Redistributions of source code must retain the copyright
! 27: * notice, this list of conditions and the following disclaimer.
! 28: * 2. Redistributions in binary form must reproduce the above copyright
! 29: * notice, this list of conditions and the following disclaimer in the
! 30: * documentation and/or other materials provided with the distribution.
! 31: * 3. All advertising materials mentioning features or use of this software
! 32: * must display the following acknowledgement:
! 33: * "This product includes cryptographic software written by
! 34: * Eric Young (eay@cryptsoft.com)"
! 35: * The word 'cryptographic' can be left out if the rouines from the library
! 36: * being used are not cryptographic related :-).
! 37: * 4. If you include any Windows specific code (or a derivative thereof) from
! 38: * the apps directory (application code) you must include an acknowledgement:
! 39: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
! 40: *
! 41: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
! 42: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 43: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 44: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 45: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 46: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 47: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 48: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 49: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 50: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 51: * SUCH DAMAGE.
! 52: *
! 53: * The licence and distribution terms for any publically available version or
! 54: * derivative of this code cannot be changed. i.e. this code cannot simply be
! 55: * copied and put under another distribution licence
! 56: * [including the GNU Public Licence.]
! 57: */
! 58:
! 59: #include <ctype.h>
! 60: #include <stdio.h>
! 61: #include <stdlib.h>
! 62: #include <string.h>
! 63:
! 64: #include "apps.h"
! 65:
! 66: #include <openssl/bio.h>
! 67: #include <openssl/comp.h>
! 68: #include <openssl/err.h>
! 69: #include <openssl/evp.h>
! 70: #include <openssl/objects.h>
! 71: #include <openssl/pem.h>
! 72: #include <openssl/rand.h>
! 73: #include <openssl/x509.h>
! 74:
! 75: int set_hex(char *in, unsigned char *out, int size);
! 76:
! 77: #define SIZE (512)
! 78: #define BSIZE (8*1024)
! 79: #define PROG enc_main
! 80:
! 81: static void
! 82: show_ciphers(const OBJ_NAME * name, void *bio_)
! 83: {
! 84: BIO *bio = bio_;
! 85: static int n;
! 86:
! 87: if (!islower((unsigned char) *name->name))
! 88: return;
! 89:
! 90: BIO_printf(bio, "-%-25s", name->name);
! 91: if (++n == 3) {
! 92: BIO_printf(bio, "\n");
! 93: n = 0;
! 94: } else
! 95: BIO_printf(bio, " ");
! 96: }
! 97:
! 98: int enc_main(int, char **);
! 99:
! 100: int
! 101: enc_main(int argc, char **argv)
! 102: {
! 103: static const char magic[] = "Salted__";
! 104: char mbuf[sizeof magic - 1];
! 105: char *strbuf = NULL;
! 106: unsigned char *buff = NULL, *bufsize = NULL;
! 107: int bsize = BSIZE, verbose = 0;
! 108: int ret = 1, inl;
! 109: int nopad = 0;
! 110: unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
! 111: unsigned char salt[PKCS5_SALT_LEN];
! 112: char *str = NULL, *passarg = NULL, *pass = NULL;
! 113: char *hkey = NULL, *hiv = NULL, *hsalt = NULL;
! 114: char *md = NULL;
! 115: int enc = 1, printkey = 0, i, base64 = 0;
! 116: #ifdef ZLIB
! 117: int do_zlib = 0;
! 118: BIO *bzl = NULL;
! 119: #endif
! 120: int debug = 0, olb64 = 0, nosalt = 0;
! 121: const EVP_CIPHER *cipher = NULL, *c;
! 122: EVP_CIPHER_CTX *ctx = NULL;
! 123: char *inf = NULL, *outf = NULL;
! 124: BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = NULL,
! 125: *wbio = NULL;
! 126: #define PROG_NAME_SIZE 39
! 127: char pname[PROG_NAME_SIZE + 1];
! 128: #ifndef OPENSSL_NO_ENGINE
! 129: char *engine = NULL;
! 130: #endif
! 131: const EVP_MD *dgst = NULL;
! 132:
! 133: /* first check the program name */
! 134: program_name(argv[0], pname, sizeof pname);
! 135: if (strcmp(pname, "base64") == 0)
! 136: base64 = 1;
! 137: #ifdef ZLIB
! 138: if (strcmp(pname, "zlib") == 0)
! 139: do_zlib = 1;
! 140: #endif
! 141:
! 142: cipher = EVP_get_cipherbyname(pname);
! 143: #ifdef ZLIB
! 144: if (!do_zlib && !base64 && (cipher == NULL)
! 145: && (strcmp(pname, "enc") != 0))
! 146: #else
! 147: if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0))
! 148: #endif
! 149: {
! 150: BIO_printf(bio_err, "%s is an unknown cipher\n", pname);
! 151: goto bad;
! 152: }
! 153: argc--;
! 154: argv++;
! 155: while (argc >= 1) {
! 156: if (strcmp(*argv, "-e") == 0)
! 157: enc = 1;
! 158: else if (strcmp(*argv, "-in") == 0) {
! 159: if (--argc < 1)
! 160: goto bad;
! 161: inf = *(++argv);
! 162: } else if (strcmp(*argv, "-out") == 0) {
! 163: if (--argc < 1)
! 164: goto bad;
! 165: outf = *(++argv);
! 166: } else if (strcmp(*argv, "-pass") == 0) {
! 167: if (--argc < 1)
! 168: goto bad;
! 169: passarg = *(++argv);
! 170: }
! 171: #ifndef OPENSSL_NO_ENGINE
! 172: else if (strcmp(*argv, "-engine") == 0) {
! 173: if (--argc < 1)
! 174: goto bad;
! 175: engine = *(++argv);
! 176: }
! 177: #endif
! 178: else if (strcmp(*argv, "-d") == 0)
! 179: enc = 0;
! 180: else if (strcmp(*argv, "-p") == 0)
! 181: printkey = 1;
! 182: else if (strcmp(*argv, "-v") == 0)
! 183: verbose = 1;
! 184: else if (strcmp(*argv, "-nopad") == 0)
! 185: nopad = 1;
! 186: else if (strcmp(*argv, "-salt") == 0)
! 187: nosalt = 0;
! 188: else if (strcmp(*argv, "-nosalt") == 0)
! 189: nosalt = 1;
! 190: else if (strcmp(*argv, "-debug") == 0)
! 191: debug = 1;
! 192: else if (strcmp(*argv, "-P") == 0)
! 193: printkey = 2;
! 194: else if (strcmp(*argv, "-A") == 0)
! 195: olb64 = 1;
! 196: else if (strcmp(*argv, "-a") == 0)
! 197: base64 = 1;
! 198: else if (strcmp(*argv, "-base64") == 0)
! 199: base64 = 1;
! 200: #ifdef ZLIB
! 201: else if (strcmp(*argv, "-z") == 0)
! 202: do_zlib = 1;
! 203: #endif
! 204: else if (strcmp(*argv, "-bufsize") == 0) {
! 205: if (--argc < 1)
! 206: goto bad;
! 207: bufsize = (unsigned char *) *(++argv);
! 208: } else if (strcmp(*argv, "-k") == 0) {
! 209: if (--argc < 1)
! 210: goto bad;
! 211: str = *(++argv);
! 212: } else if (strcmp(*argv, "-kfile") == 0) {
! 213: static char buf[128];
! 214: FILE *infile;
! 215: char *file;
! 216:
! 217: if (--argc < 1)
! 218: goto bad;
! 219: file = *(++argv);
! 220: infile = fopen(file, "r");
! 221: if (infile == NULL) {
! 222: BIO_printf(bio_err, "unable to read key from '%s'\n",
! 223: file);
! 224: goto bad;
! 225: }
! 226: buf[0] = '\0';
! 227: if (!fgets(buf, sizeof buf, infile)) {
! 228: BIO_printf(bio_err, "unable to read key from '%s'\n",
! 229: file);
! 230: fclose(infile);
! 231: goto bad;
! 232: }
! 233: fclose(infile);
! 234: i = strlen(buf);
! 235: if ((i > 0) &&
! 236: ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
! 237: buf[--i] = '\0';
! 238: if ((i > 0) &&
! 239: ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
! 240: buf[--i] = '\0';
! 241: if (i < 1) {
! 242: BIO_printf(bio_err, "zero length password\n");
! 243: goto bad;
! 244: }
! 245: str = buf;
! 246: } else if (strcmp(*argv, "-K") == 0) {
! 247: if (--argc < 1)
! 248: goto bad;
! 249: hkey = *(++argv);
! 250: } else if (strcmp(*argv, "-S") == 0) {
! 251: if (--argc < 1)
! 252: goto bad;
! 253: hsalt = *(++argv);
! 254: } else if (strcmp(*argv, "-iv") == 0) {
! 255: if (--argc < 1)
! 256: goto bad;
! 257: hiv = *(++argv);
! 258: } else if (strcmp(*argv, "-md") == 0) {
! 259: if (--argc < 1)
! 260: goto bad;
! 261: md = *(++argv);
! 262: } else if ((argv[0][0] == '-') &&
! 263: ((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) {
! 264: cipher = c;
! 265: } else if (strcmp(*argv, "-none") == 0)
! 266: cipher = NULL;
! 267: else {
! 268: BIO_printf(bio_err, "unknown option '%s'\n", *argv);
! 269: bad:
! 270: BIO_printf(bio_err, "options are\n");
! 271: BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
! 272: BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
! 273: BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>");
! 274: BIO_printf(bio_err, "%-14s encrypt\n", "-e");
! 275: BIO_printf(bio_err, "%-14s decrypt\n", "-d");
! 276: BIO_printf(bio_err, "%-14s base64 encode/decode, depending on encryption flag\n", "-a/-base64");
! 277: BIO_printf(bio_err, "%-14s passphrase is the next argument\n", "-k");
! 278: BIO_printf(bio_err, "%-14s passphrase is the first line of the file argument\n", "-kfile");
! 279: BIO_printf(bio_err, "%-14s the next argument is the md to use to create a key\n", "-md");
! 280: BIO_printf(bio_err, "%-14s from a passphrase. One of md2, md5, sha or sha1\n", "");
! 281: BIO_printf(bio_err, "%-14s salt in hex is the next argument\n", "-S");
! 282: BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n", "-K/-iv");
! 283: BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n", "-[pP]");
! 284: BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
! 285: BIO_printf(bio_err, "%-14s disable standard block padding\n", "-nopad");
! 286: #ifndef OPENSSL_NO_ENGINE
! 287: BIO_printf(bio_err, "%-14s use engine e, possibly a hardware device.\n", "-engine e");
! 288: #endif
! 289:
! 290: BIO_printf(bio_err, "Cipher Types\n");
! 291: OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
! 292: show_ciphers,
! 293: bio_err);
! 294: BIO_printf(bio_err, "\n");
! 295:
! 296: goto end;
! 297: }
! 298: argc--;
! 299: argv++;
! 300: }
! 301:
! 302: #ifndef OPENSSL_NO_ENGINE
! 303: setup_engine(bio_err, engine, 0);
! 304: #endif
! 305:
! 306: if (md && (dgst = EVP_get_digestbyname(md)) == NULL) {
! 307: BIO_printf(bio_err, "%s is an unsupported message digest type\n", md);
! 308: goto end;
! 309: }
! 310: if (dgst == NULL) {
! 311: dgst = EVP_md5();
! 312: }
! 313: if (bufsize != NULL) {
! 314: unsigned long n;
! 315:
! 316: for (n = 0; *bufsize; bufsize++) {
! 317: i = *bufsize;
! 318: if ((i <= '9') && (i >= '0'))
! 319: n = n * 10 + i - '0';
! 320: else if (i == 'k') {
! 321: n *= 1024;
! 322: bufsize++;
! 323: break;
! 324: }
! 325: }
! 326: if (*bufsize != '\0') {
! 327: BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
! 328: goto end;
! 329: }
! 330: /* It must be large enough for a base64 encoded line */
! 331: if (base64 && n < 80)
! 332: n = 80;
! 333:
! 334: bsize = (int) n;
! 335: if (verbose)
! 336: BIO_printf(bio_err, "bufsize=%d\n", bsize);
! 337: }
! 338: strbuf = malloc(SIZE);
! 339: buff = malloc(EVP_ENCODE_LENGTH(bsize));
! 340: if ((buff == NULL) || (strbuf == NULL)) {
! 341: BIO_printf(bio_err, "malloc failure %ld\n", (long) EVP_ENCODE_LENGTH(bsize));
! 342: goto end;
! 343: }
! 344: in = BIO_new(BIO_s_file());
! 345: out = BIO_new(BIO_s_file());
! 346: if ((in == NULL) || (out == NULL)) {
! 347: ERR_print_errors(bio_err);
! 348: goto end;
! 349: }
! 350: if (debug) {
! 351: BIO_set_callback(in, BIO_debug_callback);
! 352: BIO_set_callback(out, BIO_debug_callback);
! 353: BIO_set_callback_arg(in, (char *) bio_err);
! 354: BIO_set_callback_arg(out, (char *) bio_err);
! 355: }
! 356: if (inf == NULL) {
! 357: if (bufsize != NULL)
! 358: setvbuf(stdin, (char *) NULL, _IONBF, 0);
! 359: BIO_set_fp(in, stdin, BIO_NOCLOSE);
! 360: } else {
! 361: if (BIO_read_filename(in, inf) <= 0) {
! 362: perror(inf);
! 363: goto end;
! 364: }
! 365: }
! 366:
! 367: if (!str && passarg) {
! 368: if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
! 369: BIO_printf(bio_err, "Error getting password\n");
! 370: goto end;
! 371: }
! 372: str = pass;
! 373: }
! 374: if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
! 375: for (;;) {
! 376: char buf[200];
! 377: int ret;
! 378:
! 379: ret = snprintf(buf, sizeof buf, "enter %s %s password:",
! 380: OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
! 381: (enc) ? "encryption" : "decryption");
! 382: if (ret == -1 || ret >= sizeof buf) {
! 383: BIO_printf(bio_err, "Password prompt too long\n");
! 384: goto end;
! 385: }
! 386: strbuf[0] = '\0';
! 387: i = EVP_read_pw_string((char *) strbuf, SIZE, buf, enc);
! 388: if (i == 0) {
! 389: if (strbuf[0] == '\0') {
! 390: ret = 1;
! 391: goto end;
! 392: }
! 393: str = strbuf;
! 394: break;
! 395: }
! 396: if (i < 0) {
! 397: BIO_printf(bio_err, "bad password read\n");
! 398: goto end;
! 399: }
! 400: }
! 401: }
! 402: if (outf == NULL) {
! 403: BIO_set_fp(out, stdout, BIO_NOCLOSE);
! 404: if (bufsize != NULL)
! 405: setvbuf(stdout, (char *) NULL, _IONBF, 0);
! 406: } else {
! 407: if (BIO_write_filename(out, outf) <= 0) {
! 408: perror(outf);
! 409: goto end;
! 410: }
! 411: }
! 412:
! 413: rbio = in;
! 414: wbio = out;
! 415:
! 416: #ifdef ZLIB
! 417:
! 418: if (do_zlib) {
! 419: if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
! 420: goto end;
! 421: if (enc)
! 422: wbio = BIO_push(bzl, wbio);
! 423: else
! 424: rbio = BIO_push(bzl, rbio);
! 425: }
! 426: #endif
! 427:
! 428: if (base64) {
! 429: if ((b64 = BIO_new(BIO_f_base64())) == NULL)
! 430: goto end;
! 431: if (debug) {
! 432: BIO_set_callback(b64, BIO_debug_callback);
! 433: BIO_set_callback_arg(b64, (char *) bio_err);
! 434: }
! 435: if (olb64)
! 436: BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
! 437: if (enc)
! 438: wbio = BIO_push(b64, wbio);
! 439: else
! 440: rbio = BIO_push(b64, rbio);
! 441: }
! 442: if (cipher != NULL) {
! 443: /*
! 444: * Note that str is NULL if a key was passed on the command
! 445: * line, so we get no salt in that case. Is this a bug?
! 446: */
! 447: if (str != NULL) {
! 448: /*
! 449: * Salt handling: if encrypting generate a salt and
! 450: * write to output BIO. If decrypting read salt from
! 451: * input BIO.
! 452: */
! 453: unsigned char *sptr;
! 454: if (nosalt)
! 455: sptr = NULL;
! 456: else {
! 457: if (enc) {
! 458: if (hsalt) {
! 459: if (!set_hex(hsalt, salt, sizeof salt)) {
! 460: BIO_printf(bio_err,
! 461: "invalid hex salt value\n");
! 462: goto end;
! 463: }
! 464: } else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
! 465: goto end;
! 466: /*
! 467: * If -P option then don't bother
! 468: * writing
! 469: */
! 470: if ((printkey != 2)
! 471: && (BIO_write(wbio, magic,
! 472: sizeof magic - 1) != sizeof magic - 1
! 473: || BIO_write(wbio,
! 474: (char *) salt,
! 475: sizeof salt) != sizeof salt)) {
! 476: BIO_printf(bio_err, "error writing output file\n");
! 477: goto end;
! 478: }
! 479: } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
! 480: || BIO_read(rbio,
! 481: (unsigned char *) salt,
! 482: sizeof salt) != sizeof salt) {
! 483: BIO_printf(bio_err, "error reading input file\n");
! 484: goto end;
! 485: } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
! 486: BIO_printf(bio_err, "bad magic number\n");
! 487: goto end;
! 488: }
! 489: sptr = salt;
! 490: }
! 491:
! 492: EVP_BytesToKey(cipher, dgst, sptr,
! 493: (unsigned char *) str,
! 494: strlen(str), 1, key, iv);
! 495: /*
! 496: * zero the complete buffer or the string passed from
! 497: * the command line bug picked up by Larry J. Hughes
! 498: * Jr. <hughes@indiana.edu>
! 499: */
! 500: if (str == strbuf)
! 501: OPENSSL_cleanse(str, SIZE);
! 502: else
! 503: OPENSSL_cleanse(str, strlen(str));
! 504: }
! 505: if ((hiv != NULL) && !set_hex(hiv, iv, sizeof iv)) {
! 506: BIO_printf(bio_err, "invalid hex iv value\n");
! 507: goto end;
! 508: }
! 509: if ((hiv == NULL) && (str == NULL)
! 510: && EVP_CIPHER_iv_length(cipher) != 0) {
! 511: /*
! 512: * No IV was explicitly set and no IV was generated
! 513: * during EVP_BytesToKey. Hence the IV is undefined,
! 514: * making correct decryption impossible.
! 515: */
! 516: BIO_printf(bio_err, "iv undefined\n");
! 517: goto end;
! 518: }
! 519: if ((hkey != NULL) && !set_hex(hkey, key, sizeof key)) {
! 520: BIO_printf(bio_err, "invalid hex key value\n");
! 521: goto end;
! 522: }
! 523: if ((benc = BIO_new(BIO_f_cipher())) == NULL)
! 524: goto end;
! 525:
! 526: /*
! 527: * Since we may be changing parameters work on the encryption
! 528: * context rather than calling BIO_set_cipher().
! 529: */
! 530:
! 531: BIO_get_cipher_ctx(benc, &ctx);
! 532:
! 533: if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
! 534: BIO_printf(bio_err, "Error setting cipher %s\n",
! 535: EVP_CIPHER_name(cipher));
! 536: ERR_print_errors(bio_err);
! 537: goto end;
! 538: }
! 539: if (nopad)
! 540: EVP_CIPHER_CTX_set_padding(ctx, 0);
! 541:
! 542: if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
! 543: BIO_printf(bio_err, "Error setting cipher %s\n",
! 544: EVP_CIPHER_name(cipher));
! 545: ERR_print_errors(bio_err);
! 546: goto end;
! 547: }
! 548: if (debug) {
! 549: BIO_set_callback(benc, BIO_debug_callback);
! 550: BIO_set_callback_arg(benc, (char *) bio_err);
! 551: }
! 552: if (printkey) {
! 553: if (!nosalt) {
! 554: printf("salt=");
! 555: for (i = 0; i < (int) sizeof(salt); i++)
! 556: printf("%02X", salt[i]);
! 557: printf("\n");
! 558: }
! 559: if (cipher->key_len > 0) {
! 560: printf("key=");
! 561: for (i = 0; i < cipher->key_len; i++)
! 562: printf("%02X", key[i]);
! 563: printf("\n");
! 564: }
! 565: if (cipher->iv_len > 0) {
! 566: printf("iv =");
! 567: for (i = 0; i < cipher->iv_len; i++)
! 568: printf("%02X", iv[i]);
! 569: printf("\n");
! 570: }
! 571: if (printkey == 2) {
! 572: ret = 0;
! 573: goto end;
! 574: }
! 575: }
! 576: }
! 577: /* Only encrypt/decrypt as we write the file */
! 578: if (benc != NULL)
! 579: wbio = BIO_push(benc, wbio);
! 580:
! 581: for (;;) {
! 582: inl = BIO_read(rbio, (char *) buff, bsize);
! 583: if (inl <= 0)
! 584: break;
! 585: if (BIO_write(wbio, (char *) buff, inl) != inl) {
! 586: BIO_printf(bio_err, "error writing output file\n");
! 587: goto end;
! 588: }
! 589: }
! 590: if (!BIO_flush(wbio)) {
! 591: BIO_printf(bio_err, "bad decrypt\n");
! 592: goto end;
! 593: }
! 594: ret = 0;
! 595: if (verbose) {
! 596: BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in));
! 597: BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
! 598: }
! 599: end:
! 600: ERR_print_errors(bio_err);
! 601: free(strbuf);
! 602: free(buff);
! 603: BIO_free(in);
! 604: if (out != NULL)
! 605: BIO_free_all(out);
! 606: BIO_free(benc);
! 607: BIO_free(b64);
! 608: #ifdef ZLIB
! 609: BIO_free(bzl);
! 610: #endif
! 611: free(pass);
! 612:
! 613: return (ret);
! 614: }
! 615:
! 616: int
! 617: set_hex(char *in, unsigned char *out, int size)
! 618: {
! 619: int i, n;
! 620: unsigned char j;
! 621:
! 622: n = strlen(in);
! 623: if (n > (size * 2)) {
! 624: BIO_printf(bio_err, "hex string is too long\n");
! 625: return (0);
! 626: }
! 627: memset(out, 0, size);
! 628: for (i = 0; i < n; i++) {
! 629: j = (unsigned char) *in;
! 630: *(in++) = '\0';
! 631: if (j == 0)
! 632: break;
! 633: if ((j >= '0') && (j <= '9'))
! 634: j -= '0';
! 635: else if ((j >= 'A') && (j <= 'F'))
! 636: j = j - 'A' + 10;
! 637: else if ((j >= 'a') && (j <= 'f'))
! 638: j = j - 'a' + 10;
! 639: else {
! 640: BIO_printf(bio_err, "non-hex digit\n");
! 641: return (0);
! 642: }
! 643: if (i & 1)
! 644: out[i / 2] |= j;
! 645: else
! 646: out[i / 2] = (j << 4);
! 647: }
! 648: return (1);
! 649: }