1 /* 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.security.provider; 27 28 import java.io.*; 29 import java.security.*; 30 import java.security.cert.Certificate; 31 import java.security.cert.CertificateFactory; 32 import java.security.cert.CertificateException; 33 import java.util.*; 34 import sun.misc.IOUtils; 35 36 import sun.security.pkcs.EncryptedPrivateKeyInfo; 37 38 /** 39 * This class provides the keystore implementation referred to as "JKS". 40 * 41 * @author Jan Luehe 42 * @author David Brownell 43 * 44 * 45 * @see KeyProtector 46 * @see java.security.KeyStoreSpi 47 * @see KeyTool 48 * 49 * @since 1.2 50 */ 51 52 abstract class JavaKeyStore extends KeyStoreSpi { 53 54 // regular JKS 55 public static final class JKS extends JavaKeyStore { 56 String convertAlias(String alias) { 57 return alias.toLowerCase(); 58 } 59 } 60 61 // special JKS that uses case sensitive aliases 62 public static final class CaseExactJKS extends JavaKeyStore { 63 String convertAlias(String alias) { 64 return alias; 65 } 66 } 67 68 private static final int MAGIC = 0xfeedfeed; 69 private static final int VERSION_1 = 0x01; 70 private static final int VERSION_2 = 0x02; 71 72 // Private keys and their supporting certificate chains 73 private static class KeyEntry { 74 Date date; // the creation date of this entry 75 byte[] protectedPrivKey; 76 Certificate chain[]; 77 }; 78 79 // Trusted certificates 80 private static class TrustedCertEntry { 81 Date date; // the creation date of this entry 82 Certificate cert; 83 }; 84 85 /** 86 * Private keys and certificates are stored in a hashtable. 87 * Hash entries are keyed by alias names. 88 */ 89 private final Hashtable<String, Object> entries; 90 91 JavaKeyStore() { 92 entries = new Hashtable<String, Object>(); 93 } 94 95 // convert an alias to internal form, overridden in subclasses: 96 // lower case for regular JKS 97 // original string for CaseExactJKS 98 abstract String convertAlias(String alias); 99 100 /** 101 * Returns the key associated with the given alias, using the given 102 * password to recover it. 103 * 104 * @param alias the alias name 105 * @param password the password for recovering the key 106 * 107 * @return the requested key, or null if the given alias does not exist 108 * or does not identify a <i>key entry</i>. 109 * 110 * @exception NoSuchAlgorithmException if the algorithm for recovering the 111 * key cannot be found 112 * @exception UnrecoverableKeyException if the key cannot be recovered 113 * (e.g., the given password is wrong). 114 */ 115 public Key engineGetKey(String alias, char[] password) 116 throws NoSuchAlgorithmException, UnrecoverableKeyException 117 { 118 Object entry = entries.get(convertAlias(alias)); 119 120 if (entry == null || !(entry instanceof KeyEntry)) { 121 return null; 122 } 123 if (password == null) { 124 throw new UnrecoverableKeyException("Password must not be null"); 125 } 126 127 KeyProtector keyProtector = new KeyProtector(password); 128 byte[] encrBytes = ((KeyEntry)entry).protectedPrivKey; 129 EncryptedPrivateKeyInfo encrInfo; 130 byte[] plain; 131 try { 132 encrInfo = new EncryptedPrivateKeyInfo(encrBytes); 133 } catch (IOException ioe) { 134 throw new UnrecoverableKeyException("Private key not stored as " 135 + "PKCS #8 " 136 + "EncryptedPrivateKeyInfo"); 137 } 138 return keyProtector.recover(encrInfo); 139 } 140 141 /** 142 * Returns the certificate chain associated with the given alias. 143 * 144 * @param alias the alias name 145 * 146 * @return the certificate chain (ordered with the user's certificate first 147 * and the root certificate authority last), or null if the given alias 148 * does not exist or does not contain a certificate chain (i.e., the given 149 * alias identifies either a <i>trusted certificate entry</i> or a 150 * <i>key entry</i> without a certificate chain). 151 */ 152 public Certificate[] engineGetCertificateChain(String alias) { 153 Object entry = entries.get(convertAlias(alias)); 154 155 if (entry != null && entry instanceof KeyEntry) { 156 if (((KeyEntry)entry).chain == null) { 157 return null; 158 } else { 159 return ((KeyEntry)entry).chain.clone(); 160 } 161 } else { 162 return null; 163 } 164 } 165 166 /** 167 * Returns the certificate associated with the given alias. 168 * 169 * <p>If the given alias name identifies a 170 * <i>trusted certificate entry</i>, the certificate associated with that 171 * entry is returned. If the given alias name identifies a 172 * <i>key entry</i>, the first element of the certificate chain of that 173 * entry is returned, or null if that entry does not have a certificate 174 * chain. 175 * 176 * @param alias the alias name 177 * 178 * @return the certificate, or null if the given alias does not exist or 179 * does not contain a certificate. 180 */ 181 public Certificate engineGetCertificate(String alias) { 182 Object entry = entries.get(convertAlias(alias)); 183 184 if (entry != null) { 185 if (entry instanceof TrustedCertEntry) { 186 return ((TrustedCertEntry)entry).cert; 187 } else { 188 if (((KeyEntry)entry).chain == null) { 189 return null; 190 } else { 191 return ((KeyEntry)entry).chain[0]; 192 } 193 } 194 } else { 195 return null; 196 } 197 } 198 199 /** 200 * Returns the creation date of the entry identified by the given alias. 201 * 202 * @param alias the alias name 203 * 204 * @return the creation date of this entry, or null if the given alias does 205 * not exist 206 */ 207 public Date engineGetCreationDate(String alias) { 208 Object entry = entries.get(convertAlias(alias)); 209 210 if (entry != null) { 211 if (entry instanceof TrustedCertEntry) { 212 return new Date(((TrustedCertEntry)entry).date.getTime()); 213 } else { 214 return new Date(((KeyEntry)entry).date.getTime()); 215 } 216 } else { 217 return null; 218 } 219 } 220 221 /** 222 * Assigns the given private key to the given alias, protecting 223 * it with the given password as defined in PKCS8. 224 * 225 * <p>The given java.security.PrivateKey <code>key</code> must 226 * be accompanied by a certificate chain certifying the 227 * corresponding public key. 228 * 229 * <p>If the given alias already exists, the keystore information 230 * associated with it is overridden by the given key and certificate 231 * chain. 232 * 233 * @param alias the alias name 234 * @param key the private key to be associated with the alias 235 * @param password the password to protect the key 236 * @param chain the certificate chain for the corresponding public 237 * key (only required if the given key is of type 238 * <code>java.security.PrivateKey</code>). 239 * 240 * @exception KeyStoreException if the given key is not a private key, 241 * cannot be protected, or this operation fails for some other reason 242 */ 243 public void engineSetKeyEntry(String alias, Key key, char[] password, 244 Certificate[] chain) 245 throws KeyStoreException 246 { 247 KeyProtector keyProtector = null; 248 249 if (!(key instanceof java.security.PrivateKey)) { 250 throw new KeyStoreException("Cannot store non-PrivateKeys"); 251 } 252 try { 253 synchronized(entries) { 254 KeyEntry entry = new KeyEntry(); 255 entry.date = new Date(); 256 257 // Protect the encoding of the key 258 keyProtector = new KeyProtector(password); 259 entry.protectedPrivKey = keyProtector.protect(key); 260 261 // clone the chain 262 if ((chain != null) && 263 (chain.length != 0)) { 264 entry.chain = chain.clone(); 265 } else { 266 entry.chain = null; 267 } 268 269 entries.put(convertAlias(alias), entry); 270 } 271 } catch (NoSuchAlgorithmException nsae) { 272 throw new KeyStoreException("Key protection algorithm not found"); 273 } finally { 274 keyProtector = null; 275 } 276 } 277 278 /** 279 * Assigns the given key (that has already been protected) to the given 280 * alias. 281 * 282 * <p>If the protected key is of type 283 * <code>java.security.PrivateKey</code>, it must be accompanied by a 284 * certificate chain certifying the corresponding public key. If the 285 * underlying keystore implementation is of type <code>jks</code>, 286 * <code>key</code> must be encoded as an 287 * <code>EncryptedPrivateKeyInfo</code> as defined in the PKCS #8 standard. 288 * 289 * <p>If the given alias already exists, the keystore information 290 * associated with it is overridden by the given key (and possibly 291 * certificate chain). 292 * 293 * @param alias the alias name 294 * @param key the key (in protected format) to be associated with the alias 295 * @param chain the certificate chain for the corresponding public 296 * key (only useful if the protected key is of type 297 * <code>java.security.PrivateKey</code>). 298 * 299 * @exception KeyStoreException if this operation fails. 300 */ 301 public void engineSetKeyEntry(String alias, byte[] key, 302 Certificate[] chain) 303 throws KeyStoreException 304 { 305 synchronized(entries) { 306 // key must be encoded as EncryptedPrivateKeyInfo as defined in 307 // PKCS#8 308 try { 309 new EncryptedPrivateKeyInfo(key); 310 } catch (IOException ioe) { 311 throw new KeyStoreException("key is not encoded as " 312 + "EncryptedPrivateKeyInfo"); 313 } 314 315 KeyEntry entry = new KeyEntry(); 316 entry.date = new Date(); 317 318 entry.protectedPrivKey = key.clone(); 319 if ((chain != null) && 320 (chain.length != 0)) { 321 entry.chain = chain.clone(); 322 } else { 323 entry.chain = null; 324 } 325 326 entries.put(convertAlias(alias), entry); 327 } 328 } 329 330 /** 331 * Assigns the given certificate to the given alias. 332 * 333 * <p>If the given alias already exists in this keystore and identifies a 334 * <i>trusted certificate entry</i>, the certificate associated with it is 335 * overridden by the given certificate. 336 * 337 * @param alias the alias name 338 * @param cert the certificate 339 * 340 * @exception KeyStoreException if the given alias already exists and does 341 * not identify a <i>trusted certificate entry</i>, or this operation 342 * fails for some other reason. 343 */ 344 public void engineSetCertificateEntry(String alias, Certificate cert) 345 throws KeyStoreException 346 { 347 synchronized(entries) { 348 349 Object entry = entries.get(convertAlias(alias)); 350 if ((entry != null) && (entry instanceof KeyEntry)) { 351 throw new KeyStoreException 352 ("Cannot overwrite own certificate"); 353 } 354 355 TrustedCertEntry trustedCertEntry = new TrustedCertEntry(); 356 trustedCertEntry.cert = cert; 357 trustedCertEntry.date = new Date(); 358 entries.put(convertAlias(alias), trustedCertEntry); 359 } 360 } 361 362 /** 363 * Deletes the entry identified by the given alias from this keystore. 364 * 365 * @param alias the alias name 366 * 367 * @exception KeyStoreException if the entry cannot be removed. 368 */ 369 public void engineDeleteEntry(String alias) 370 throws KeyStoreException 371 { 372 synchronized(entries) { 373 entries.remove(convertAlias(alias)); 374 } 375 } 376 377 /** 378 * Lists all the alias names of this keystore. 379 * 380 * @return enumeration of the alias names 381 */ 382 public Enumeration<String> engineAliases() { 383 return entries.keys(); 384 } 385 386 /** 387 * Checks if the given alias exists in this keystore. 388 * 389 * @param alias the alias name 390 * 391 * @return true if the alias exists, false otherwise 392 */ 393 public boolean engineContainsAlias(String alias) { 394 return entries.containsKey(convertAlias(alias)); 395 } 396 397 /** 398 * Retrieves the number of entries in this keystore. 399 * 400 * @return the number of entries in this keystore 401 */ 402 public int engineSize() { 403 return entries.size(); 404 } 405 406 /** 407 * Returns true if the entry identified by the given alias is a 408 * <i>key entry</i>, and false otherwise. 409 * 410 * @return true if the entry identified by the given alias is a 411 * <i>key entry</i>, false otherwise. 412 */ 413 public boolean engineIsKeyEntry(String alias) { 414 Object entry = entries.get(convertAlias(alias)); 415 if ((entry != null) && (entry instanceof KeyEntry)) { 416 return true; 417 } else { 418 return false; 419 } 420 } 421 422 /** 423 * Returns true if the entry identified by the given alias is a 424 * <i>trusted certificate entry</i>, and false otherwise. 425 * 426 * @return true if the entry identified by the given alias is a 427 * <i>trusted certificate entry</i>, false otherwise. 428 */ 429 public boolean engineIsCertificateEntry(String alias) { 430 Object entry = entries.get(convertAlias(alias)); 431 if ((entry != null) && (entry instanceof TrustedCertEntry)) { 432 return true; 433 } else { 434 return false; 435 } 436 } 437 438 /** 439 * Returns the (alias) name of the first keystore entry whose certificate 440 * matches the given certificate. 441 * 442 * <p>This method attempts to match the given certificate with each 443 * keystore entry. If the entry being considered 444 * is a <i>trusted certificate entry</i>, the given certificate is 445 * compared to that entry's certificate. If the entry being considered is 446 * a <i>key entry</i>, the given certificate is compared to the first 447 * element of that entry's certificate chain (if a chain exists). 448 * 449 * @param cert the certificate to match with. 450 * 451 * @return the (alias) name of the first entry with matching certificate, 452 * or null if no such entry exists in this keystore. 453 */ 454 public String engineGetCertificateAlias(Certificate cert) { 455 Certificate certElem; 456 457 for (Enumeration<String> e = entries.keys(); e.hasMoreElements(); ) { 458 String alias = e.nextElement(); 459 Object entry = entries.get(alias); 460 if (entry instanceof TrustedCertEntry) { 461 certElem = ((TrustedCertEntry)entry).cert; 462 } else if (((KeyEntry)entry).chain != null) { 463 certElem = ((KeyEntry)entry).chain[0]; 464 } else { 465 continue; 466 } 467 if (certElem.equals(cert)) { 468 return alias; 469 } 470 } 471 return null; 472 } 473 474 /** 475 * Stores this keystore to the given output stream, and protects its 476 * integrity with the given password. 477 * 478 * @param stream the output stream to which this keystore is written. 479 * @param password the password to generate the keystore integrity check 480 * 481 * @exception IOException if there was an I/O problem with data 482 * @exception NoSuchAlgorithmException if the appropriate data integrity 483 * algorithm could not be found 484 * @exception CertificateException if any of the certificates included in 485 * the keystore data could not be stored 486 */ 487 public void engineStore(OutputStream stream, char[] password) 488 throws IOException, NoSuchAlgorithmException, CertificateException 489 { 490 synchronized(entries) { 491 /* 492 * KEYSTORE FORMAT: 493 * 494 * Magic number (big-endian integer), 495 * Version of this file format (big-endian integer), 496 * 497 * Count (big-endian integer), 498 * followed by "count" instances of either: 499 * 500 * { 501 * tag=1 (big-endian integer), 502 * alias (UTF string) 503 * timestamp 504 * encrypted private-key info according to PKCS #8 505 * (integer length followed by encoding) 506 * cert chain (integer count, then certs; for each cert, 507 * integer length followed by encoding) 508 * } 509 * 510 * or: 511 * 512 * { 513 * tag=2 (big-endian integer) 514 * alias (UTF string) 515 * timestamp 516 * cert (integer length followed by encoding) 517 * } 518 * 519 * ended by a keyed SHA1 hash (bytes only) of 520 * { password + whitener + preceding body } 521 */ 522 523 // password is mandatory when storing 524 if (password == null) { 525 throw new IllegalArgumentException("password can't be null"); 526 } 527 528 byte[] encoded; // the certificate encoding 529 530 MessageDigest md = getPreKeyedHash(password); 531 DataOutputStream dos 532 = new DataOutputStream(new DigestOutputStream(stream, md)); 533 534 dos.writeInt(MAGIC); 535 // always write the latest version 536 dos.writeInt(VERSION_2); 537 538 dos.writeInt(entries.size()); 539 540 for (Enumeration<String> e = entries.keys(); e.hasMoreElements();) { 541 542 String alias = e.nextElement(); 543 Object entry = entries.get(alias); 544 545 if (entry instanceof KeyEntry) { 546 547 // Store this entry as a KeyEntry 548 dos.writeInt(1); 549 550 // Write the alias 551 dos.writeUTF(alias); 552 553 // Write the (entry creation) date 554 dos.writeLong(((KeyEntry)entry).date.getTime()); 555 556 // Write the protected private key 557 dos.writeInt(((KeyEntry)entry).protectedPrivKey.length); 558 dos.write(((KeyEntry)entry).protectedPrivKey); 559 560 // Write the certificate chain 561 int chainLen; 562 if (((KeyEntry)entry).chain == null) { 563 chainLen = 0; 564 } else { 565 chainLen = ((KeyEntry)entry).chain.length; 566 } 567 dos.writeInt(chainLen); 568 for (int i = 0; i < chainLen; i++) { 569 encoded = ((KeyEntry)entry).chain[i].getEncoded(); 570 dos.writeUTF(((KeyEntry)entry).chain[i].getType()); 571 dos.writeInt(encoded.length); 572 dos.write(encoded); 573 } 574 } else { 575 576 // Store this entry as a certificate 577 dos.writeInt(2); 578 579 // Write the alias 580 dos.writeUTF(alias); 581 582 // Write the (entry creation) date 583 dos.writeLong(((TrustedCertEntry)entry).date.getTime()); 584 585 // Write the trusted certificate 586 encoded = ((TrustedCertEntry)entry).cert.getEncoded(); 587 dos.writeUTF(((TrustedCertEntry)entry).cert.getType()); 588 dos.writeInt(encoded.length); 589 dos.write(encoded); 590 } 591 } 592 593 /* 594 * Write the keyed hash which is used to detect tampering with 595 * the keystore (such as deleting or modifying key or 596 * certificate entries). 597 */ 598 byte digest[] = md.digest(); 599 600 dos.write(digest); 601 dos.flush(); 602 } 603 } 604 605 /** 606 * Loads the keystore from the given input stream. 607 * 608 * <p>If a password is given, it is used to check the integrity of the 609 * keystore data. Otherwise, the integrity of the keystore is not checked. 610 * 611 * @param stream the input stream from which the keystore is loaded 612 * @param password the (optional) password used to check the integrity of 613 * the keystore. 614 * 615 * @exception IOException if there is an I/O or format problem with the 616 * keystore data 617 * @exception NoSuchAlgorithmException if the algorithm used to check 618 * the integrity of the keystore cannot be found 619 * @exception CertificateException if any of the certificates in the 620 * keystore could not be loaded 621 */ 622 public void engineLoad(InputStream stream, char[] password) 623 throws IOException, NoSuchAlgorithmException, CertificateException 624 { 625 synchronized(entries) { 626 DataInputStream dis; 627 MessageDigest md = null; 628 CertificateFactory cf = null; 629 Hashtable<String, CertificateFactory> cfs = null; 630 ByteArrayInputStream bais = null; 631 byte[] encoded = null; 632 633 if (stream == null) 634 return; 635 636 if (password != null) { 637 md = getPreKeyedHash(password); 638 dis = new DataInputStream(new DigestInputStream(stream, md)); 639 } else { 640 dis = new DataInputStream(stream); 641 } 642 643 // Body format: see store method 644 645 int xMagic = dis.readInt(); 646 int xVersion = dis.readInt(); 647 648 if (xMagic!=MAGIC || 649 (xVersion!=VERSION_1 && xVersion!=VERSION_2)) { 650 throw new IOException("Invalid keystore format"); 651 } 652 653 if (xVersion == VERSION_1) { 654 cf = CertificateFactory.getInstance("X509"); 655 } else { 656 // version 2 657 cfs = new Hashtable<String, CertificateFactory>(3); 658 } 659 660 entries.clear(); 661 int count = dis.readInt(); 662 663 for (int i = 0; i < count; i++) { 664 int tag; 665 String alias; 666 667 tag = dis.readInt(); 668 669 if (tag == 1) { // private key entry 670 671 KeyEntry entry = new KeyEntry(); 672 673 // Read the alias 674 alias = dis.readUTF(); 675 676 // Read the (entry creation) date 677 entry.date = new Date(dis.readLong()); 678 679 // Read the private key 680 entry.protectedPrivKey = 681 IOUtils.readFully(dis, dis.readInt(), true); 682 683 // Read the certificate chain 684 int numOfCerts = dis.readInt(); 685 if (numOfCerts > 0) { 686 List<Certificate> certs = new ArrayList<>( 687 numOfCerts > 10 ? 10 : numOfCerts); 688 for (int j = 0; j < numOfCerts; j++) { 689 if (xVersion == 2) { 690 // read the certificate type, and instantiate a 691 // certificate factory of that type (reuse 692 // existing factory if possible) 693 String certType = dis.readUTF(); 694 if (cfs.containsKey(certType)) { 695 // reuse certificate factory 696 cf = cfs.get(certType); 697 } else { 698 // create new certificate factory 699 cf = CertificateFactory.getInstance(certType); 700 // store the certificate factory so we can 701 // reuse it later 702 cfs.put(certType, cf); 703 } 704 } 705 // instantiate the certificate 706 encoded = IOUtils.readFully(dis, dis.readInt(), true); 707 bais = new ByteArrayInputStream(encoded); 708 certs.add(cf.generateCertificate(bais)); 709 bais.close(); 710 } 711 // We can be sure now that numOfCerts of certs are read 712 entry.chain = certs.toArray(new Certificate[numOfCerts]); 713 } 714 715 // Add the entry to the list 716 entries.put(alias, entry); 717 718 } else if (tag == 2) { // trusted certificate entry 719 720 TrustedCertEntry entry = new TrustedCertEntry(); 721 722 // Read the alias 723 alias = dis.readUTF(); 724 725 // Read the (entry creation) date 726 entry.date = new Date(dis.readLong()); 727 728 // Read the trusted certificate 729 if (xVersion == 2) { 730 // read the certificate type, and instantiate a 731 // certificate factory of that type (reuse 732 // existing factory if possible) 733 String certType = dis.readUTF(); 734 if (cfs.containsKey(certType)) { 735 // reuse certificate factory 736 cf = cfs.get(certType); 737 } else { 738 // create new certificate factory 739 cf = CertificateFactory.getInstance(certType); 740 // store the certificate factory so we can 741 // reuse it later 742 cfs.put(certType, cf); 743 } 744 } 745 encoded = IOUtils.readFully(dis, dis.readInt(), true); 746 bais = new ByteArrayInputStream(encoded); 747 entry.cert = cf.generateCertificate(bais); 748 bais.close(); 749 750 // Add the entry to the list 751 entries.put(alias, entry); 752 753 } else { 754 throw new IOException("Unrecognized keystore entry"); 755 } 756 } 757 758 /* 759 * If a password has been provided, we check the keyed digest 760 * at the end. If this check fails, the store has been tampered 761 * with 762 */ 763 if (password != null) { 764 byte computed[], actual[]; 765 computed = md.digest(); 766 actual = new byte[computed.length]; 767 dis.readFully(actual); 768 for (int i = 0; i < computed.length; i++) { 769 if (computed[i] != actual[i]) { 770 Throwable t = new UnrecoverableKeyException 771 ("Password verification failed"); 772 throw (IOException)new IOException 773 ("Keystore was tampered with, or " 774 + "password was incorrect").initCause(t); 775 } 776 } 777 } 778 } 779 } 780 781 /** 782 * To guard against tampering with the keystore, we append a keyed 783 * hash with a bit of whitener. 784 */ 785 private MessageDigest getPreKeyedHash(char[] password) 786 throws NoSuchAlgorithmException, UnsupportedEncodingException 787 { 788 int i, j; 789 790 MessageDigest md = MessageDigest.getInstance("SHA"); 791 byte[] passwdBytes = new byte[password.length * 2]; 792 for (i=0, j=0; i<password.length; i++) { 793 passwdBytes[j++] = (byte)(password[i] >> 8); 794 passwdBytes[j++] = (byte)password[i]; 795 } 796 md.update(passwdBytes); 797 for (i=0; i<passwdBytes.length; i++) 798 passwdBytes[i] = 0; 799 md.update("Mighty Aphrodite".getBytes("UTF8")); 800 return md; 801 } 802 }