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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/com/sun/crypto/provider/JceKeyStore.java (1 of 18352 files). Show all

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java/pkg/com/sun/crypto/provider/JceKeyStore.java+903−0
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1+/*
2+ * Copyright (c) 1998, 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 com.sun.crypto.provider;
27+
28+import java.io.*;
29+import java.util.*;
30+import java.security.DigestInputStream;
31+import java.security.DigestOutputStream;
32+import java.security.MessageDigest;
33+import java.security.NoSuchAlgorithmException;
34+import java.security.Key;
35+import java.security.PrivateKey;
36+import java.security.KeyStoreSpi;
37+import java.security.KeyStoreException;
38+import java.security.UnrecoverableKeyException;
39+import java.security.cert.Certificate;
40+import java.security.cert.CertificateFactory;
41+import java.security.cert.X509Certificate;
42+import java.security.cert.CertificateException;
43+import java.security.spec.InvalidKeySpecException;
44+import javax.crypto.SealedObject;
45+
46+/**
47+ * This class provides the keystore implementation referred to as "jceks".
48+ * This implementation strongly protects the keystore private keys using
49+ * triple-DES, where the triple-DES encryption/decryption key is derived from
50+ * the user's password.
51+ * The encrypted private keys are stored in the keystore in a standard format,
52+ * namely the <code>EncryptedPrivateKeyInfo</code> format defined in PKCS #8.
53+ *
54+ * @author Jan Luehe
55+ *
56+ *
57+ * @see java.security.KeyStoreSpi
58+ */
59+
60+public final class JceKeyStore extends KeyStoreSpi {
61+
62+ private static final int JCEKS_MAGIC = 0xcececece;
63+ private static final int JKS_MAGIC = 0xfeedfeed;
64+ private static final int VERSION_1 = 0x01;
65+ private static final int VERSION_2 = 0x02;
66+
67+ // Private key and supporting certificate chain
68+ private static final class PrivateKeyEntry {
69+ Date date; // the creation date of this entry
70+ byte[] protectedKey;
71+ Certificate chain[];
72+ };
73+
74+ // Secret key
75+ private static final class SecretKeyEntry {
76+ Date date; // the creation date of this entry
77+ SealedObject sealedKey;
78+ }
79+
80+ // Trusted certificate
81+ private static final class TrustedCertEntry {
82+ Date date; // the creation date of this entry
83+ Certificate cert;
84+ };
85+
86+ /**
87+ * Private keys and certificates are stored in a hashtable.
88+ * Hash entries are keyed by alias names.
89+ */
90+ private Hashtable entries = new Hashtable();
91+
92+ /**
93+ * Returns the key associated with the given alias, using the given
94+ * password to recover it.
95+ *
96+ * @param alias the alias name
97+ * @param password the password for recovering the key
98+ *
99+ * @return the requested key, or null if the given alias does not exist
100+ * or does not identify a <i>key entry</i>.
101+ *
102+ * @exception NoSuchAlgorithmException if the algorithm for recovering the
103+ * key cannot be found
104+ * @exception UnrecoverableKeyException if the key cannot be recovered
105+ * (e.g., the given password is wrong).
106+ */
107+ public Key engineGetKey(String alias, char[] password)
108+ throws NoSuchAlgorithmException, UnrecoverableKeyException
109+ {
110+ Key key = null;
111+
112+ Object entry = entries.get(alias.toLowerCase());
113+
114+ if (!((entry instanceof PrivateKeyEntry) ||
115+ (entry instanceof SecretKeyEntry))) {
116+ return null;
117+ }
118+
119+ KeyProtector keyProtector = new KeyProtector(password);
120+
121+ if (entry instanceof PrivateKeyEntry) {
122+ byte[] encrBytes = ((PrivateKeyEntry)entry).protectedKey;
123+ EncryptedPrivateKeyInfo encrInfo;
124+ try {
125+ encrInfo = new EncryptedPrivateKeyInfo(encrBytes);
126+ } catch (IOException ioe) {
127+ throw new UnrecoverableKeyException("Private key not stored "
128+ + "as PKCS #8 " +
129+ "EncryptedPrivateKeyInfo");
130+ }
131+ key = keyProtector.recover(encrInfo);
132+ } else {
133+ key =
134+ keyProtector.unseal(((SecretKeyEntry)entry).sealedKey);
135+ }
136+
137+ return key;
138+ }
139+
140+ /**
141+ * Returns the certificate chain associated with the given alias.
142+ *
143+ * @param alias the alias name
144+ *
145+ * @return the certificate chain (ordered with the user's certificate first
146+ * and the root certificate authority last), or null if the given alias
147+ * does not exist or does not contain a certificate chain (i.e., the given
148+ * alias identifies either a <i>trusted certificate entry</i> or a
149+ * <i>key entry</i> without a certificate chain).
150+ */
151+ public Certificate[] engineGetCertificateChain(String alias)
152+ {
153+ Certificate[] chain = null;
154+
155+ Object entry = entries.get(alias.toLowerCase());
156+
157+ if ((entry instanceof PrivateKeyEntry)
158+ && (((PrivateKeyEntry)entry).chain != null)) {
159+ chain = (Certificate[])((PrivateKeyEntry)entry).chain.clone();
160+ }
161+
162+ return chain;
163+ }
164+
165+ /**
166+ * Returns the certificate associated with the given alias.
167+ *
168+ * <p>If the given alias name identifies a
169+ * <i>trusted certificate entry</i>, the certificate associated with that
170+ * entry is returned. If the given alias name identifies a
171+ * <i>key entry</i>, the first element of the certificate chain of that
172+ * entry is returned, or null if that entry does not have a certificate
173+ * chain.
174+ *
175+ * @param alias the alias name
176+ *
177+ * @return the certificate, or null if the given alias does not exist or
178+ * does not contain a certificate.
179+ */
180+ public Certificate engineGetCertificate(String alias) {
181+ Certificate cert = null;
182+
183+ Object entry = entries.get(alias.toLowerCase());
184+
185+ if (entry != null) {
186+ if (entry instanceof TrustedCertEntry) {
187+ cert = ((TrustedCertEntry)entry).cert;
188+ } else if ((entry instanceof PrivateKeyEntry) &&
189+ (((PrivateKeyEntry)entry).chain != null)) {
190+ cert = ((PrivateKeyEntry)entry).chain[0];
191+ }
192+ }
193+
194+ return cert;
195+ }
196+
197+ /**
198+ * Returns the creation date of the entry identified by the given alias.
199+ *
200+ * @param alias the alias name
201+ *
202+ * @return the creation date of this entry, or null if the given alias does
203+ * not exist
204+ */
205+ public Date engineGetCreationDate(String alias) {
206+ Date date = null;
207+
208+ Object entry = entries.get(alias.toLowerCase());
209+
210+ if (entry != null) {
211+ // We have to create a new instance of java.util.Date because
212+ // dates are not immutable
213+ if (entry instanceof TrustedCertEntry) {
214+ date = new Date(((TrustedCertEntry)entry).date.getTime());
215+ } else if (entry instanceof PrivateKeyEntry) {
216+ date = new Date(((PrivateKeyEntry)entry).date.getTime());
217+ } else {
218+ date = new Date(((SecretKeyEntry)entry).date.getTime());
219+ }
220+ }
221+
222+ return date;
223+ }
224+
225+ /**
226+ * Assigns the given key to the given alias, protecting it with the given
227+ * password.
228+ *
229+ * <p>If the given key is of type <code>java.security.PrivateKey</code>,
230+ * it must be accompanied by a certificate chain certifying the
231+ * corresponding public key.
232+ *
233+ * <p>If the given alias already exists, the keystore information
234+ * associated with it is overridden by the given key (and possibly
235+ * certificate chain).
236+ *
237+ * @param alias the alias name
238+ * @param key the key to be associated with the alias
239+ * @param password the password to protect the key
240+ * @param chain the certificate chain for the corresponding public
241+ * key (only required if the given key is of type
242+ * <code>java.security.PrivateKey</code>).
243+ *
244+ * @exception KeyStoreException if the given key cannot be protected, or
245+ * this operation fails for some other reason
246+ */
247+ public void engineSetKeyEntry(String alias, Key key, char[] password,
248+ Certificate[] chain)
249+ throws KeyStoreException
250+ {
251+ synchronized(entries) {
252+ try {
253+ KeyProtector keyProtector = new KeyProtector(password);
254+
255+ if (key instanceof PrivateKey) {
256+ PrivateKeyEntry entry = new PrivateKeyEntry();
257+ entry.date = new Date();
258+
259+ // protect the private key
260+ entry.protectedKey = keyProtector.protect((PrivateKey)key);
261+
262+ // clone the chain
263+ if ((chain != null) &&
264+ (chain.length !=0)) {
265+ entry.chain = (Certificate[])chain.clone();
266+ } else {
267+ entry.chain = null;
268+ }
269+
270+ // store the entry
271+ entries.put(alias.toLowerCase(), entry);
272+
273+ } else {
274+ SecretKeyEntry entry = new SecretKeyEntry();
275+ entry.date = new Date();
276+
277+ // seal and store the key
278+ entry.sealedKey = keyProtector.seal(key);
279+ entries.put(alias.toLowerCase(), entry);
280+ }
281+
282+ } catch (Exception e) {
283+ throw new KeyStoreException(e.getMessage());
284+ }
285+ }
286+ }
287+
288+ /**
289+ * Assigns the given key (that has already been protected) to the given
290+ * alias.
291+ *
292+ * <p>If the protected key is of type
293+ * <code>java.security.PrivateKey</code>,
294+ * it must be accompanied by a certificate chain certifying the
295+ * corresponding public key.
296+ *
297+ * <p>If the given alias already exists, the keystore information
298+ * associated with it is overridden by the given key (and possibly
299+ * certificate chain).
300+ *
301+ * @param alias the alias name
302+ * @param key the key (in protected format) to be associated with the alias
303+ * @param chain the certificate chain for the corresponding public
304+ * key (only useful if the protected key is of type
305+ * <code>java.security.PrivateKey</code>).
306+ *
307+ * @exception KeyStoreException if this operation fails.
308+ */
309+ public void engineSetKeyEntry(String alias, byte[] key,
310+ Certificate[] chain)
311+ throws KeyStoreException
312+ {
313+ synchronized(entries) {
314+ // We assume it's a private key, because there is no standard
315+ // (ASN.1) encoding format for wrapped secret keys
316+ PrivateKeyEntry entry = new PrivateKeyEntry();
317+ entry.date = new Date();
318+
319+ entry.protectedKey = (byte[])key.clone();
320+ if ((chain != null) &&
321+ (chain.length != 0)) {
322+ entry.chain = (Certificate[])chain.clone();
323+ } else {
324+ entry.chain = null;
325+ }
326+
327+ entries.put(alias.toLowerCase(), entry);
328+ }
329+ }
330+
331+ /**
332+ * Assigns the given certificate to the given alias.
333+ *
334+ * <p>If the given alias already exists in this keystore and identifies a
335+ * <i>trusted certificate entry</i>, the certificate associated with it is
336+ * overridden by the given certificate.
337+ *
338+ * @param alias the alias name
339+ * @param cert the certificate
340+ *
341+ * @exception KeyStoreException if the given alias already exists and does
342+ * not identify a <i>trusted certificate entry</i>, or this operation
343+ * fails for some other reason.
344+ */
345+ public void engineSetCertificateEntry(String alias, Certificate cert)
346+ throws KeyStoreException
347+ {
348+ synchronized(entries) {
349+
350+ Object entry = entries.get(alias.toLowerCase());
351+ if (entry != null) {
352+ if (entry instanceof PrivateKeyEntry) {
353+ throw new KeyStoreException("Cannot overwrite own "
354+ + "certificate");
355+ } else if (entry instanceof SecretKeyEntry) {
356+ throw new KeyStoreException("Cannot overwrite secret key");
357+ }
358+ }
359+
360+ TrustedCertEntry trustedCertEntry = new TrustedCertEntry();
361+ trustedCertEntry.cert = cert;
362+ trustedCertEntry.date = new Date();
363+ entries.put(alias.toLowerCase(), trustedCertEntry);
364+ }
365+ }
366+
367+ /**
368+ * Deletes the entry identified by the given alias from this keystore.
369+ *
370+ * @param alias the alias name
371+ *
372+ * @exception KeyStoreException if the entry cannot be removed.
373+ */
374+ public void engineDeleteEntry(String alias)
375+ throws KeyStoreException
376+ {
377+ synchronized(entries) {
378+ entries.remove(alias.toLowerCase());
379+ }
380+ }
381+
382+ /**
383+ * Lists all the alias names of this keystore.
384+ *
385+ * @return enumeration of the alias names
386+ */
387+ public Enumeration engineAliases() {
388+ return entries.keys();
389+ }
390+
391+ /**
392+ * Checks if the given alias exists in this keystore.
393+ *
394+ * @param alias the alias name
395+ *
396+ * @return true if the alias exists, false otherwise
397+ */
398+ public boolean engineContainsAlias(String alias) {
399+ return entries.containsKey(alias.toLowerCase());
400+ }
401+
402+ /**
403+ * Retrieves the number of entries in this keystore.
404+ *
405+ * @return the number of entries in this keystore
406+ */
407+ public int engineSize() {
408+ return entries.size();
409+ }
410+
411+ /**
412+ * Returns true if the entry identified by the given alias is a
413+ * <i>key entry</i>, and false otherwise.
414+ *
415+ * @return true if the entry identified by the given alias is a
416+ * <i>key entry</i>, false otherwise.
417+ */
418+ public boolean engineIsKeyEntry(String alias) {
419+ boolean isKey = false;
420+
421+ Object entry = entries.get(alias.toLowerCase());
422+ if ((entry instanceof PrivateKeyEntry)
423+ || (entry instanceof SecretKeyEntry)) {
424+ isKey = true;
425+ }
426+
427+ return isKey;
428+ }
429+
430+ /**
431+ * Returns true if the entry identified by the given alias is a
432+ * <i>trusted certificate entry</i>, and false otherwise.
433+ *
434+ * @return true if the entry identified by the given alias is a
435+ * <i>trusted certificate entry</i>, false otherwise.
436+ */
437+ public boolean engineIsCertificateEntry(String alias) {
438+ boolean isCert = false;
439+ Object entry = entries.get(alias.toLowerCase());
440+ if (entry instanceof TrustedCertEntry) {
441+ isCert = true;
442+ }
443+ return isCert;
444+ }
445+
446+ /**
447+ * Returns the (alias) name of the first keystore entry whose certificate
448+ * matches the given certificate.
449+ *
450+ * <p>This method attempts to match the given certificate with each
451+ * keystore entry. If the entry being considered
452+ * is a <i>trusted certificate entry</i>, the given certificate is
453+ * compared to that entry's certificate. If the entry being considered is
454+ * a <i>key entry</i>, the given certificate is compared to the first
455+ * element of that entry's certificate chain (if a chain exists).
456+ *
457+ * @param cert the certificate to match with.
458+ *
459+ * @return the (alias) name of the first entry with matching certificate,
460+ * or null if no such entry exists in this keystore.
461+ */
462+ public String engineGetCertificateAlias(Certificate cert) {
463+ Certificate certElem;
464+
465+ Enumeration e = entries.keys();
466+ while (e.hasMoreElements()) {
467+ String alias = (String)e.nextElement();
468+ Object entry = entries.get(alias);
469+ if (entry instanceof TrustedCertEntry) {
470+ certElem = ((TrustedCertEntry)entry).cert;
471+ } else if ((entry instanceof PrivateKeyEntry) &&
472+ (((PrivateKeyEntry)entry).chain != null)) {
473+ certElem = ((PrivateKeyEntry)entry).chain[0];
474+ } else {
475+ continue;
476+ }
477+ if (certElem.equals(cert)) {
478+ return alias;
479+ }
480+ }
481+ return null;
482+ }
483+
484+ /**
485+ * Stores this keystore to the given output stream, and protects its
486+ * integrity with the given password.
487+ *
488+ * @param stream the output stream to which this keystore is written.
489+ * @param password the password to generate the keystore integrity check
490+ *
491+ * @exception IOException if there was an I/O problem with data
492+ * @exception NoSuchAlgorithmException if the appropriate data integrity
493+ * algorithm could not be found
494+ * @exception CertificateException if any of the certificates included in
495+ * the keystore data could not be stored
496+ */
497+ public void engineStore(OutputStream stream, char[] password)
498+ throws IOException, NoSuchAlgorithmException, CertificateException
499+ {
500+ synchronized(entries) {
501+ /*
502+ * KEYSTORE FORMAT:
503+ *
504+ * Magic number (big-endian integer),
505+ * Version of this file format (big-endian integer),
506+ *
507+ * Count (big-endian integer),
508+ * followed by "count" instances of either:
509+ *
510+ * {
511+ * tag=1 (big-endian integer)
512+ * alias (UTF string)
513+ * timestamp
514+ * encrypted private-key info according to PKCS #8
515+ * (integer length followed by encoding)
516+ * cert chain (integer count followed by certs;
517+ * for each cert: type UTF string, followed by integer
518+ * length, followed by encoding)
519+ * }
520+ *
521+ * or:
522+ *
523+ * {
524+ * tag=2 (big-endian integer)
525+ * alias (UTF string)
526+ * timestamp
527+ * cert (type UTF string, followed by integer length,
528+ * followed by encoding)
529+ * }
530+ *
531+ * or:
532+ *
533+ * {
534+ * tag=3 (big-endian integer)
535+ * alias (UTF string)
536+ * timestamp
537+ * sealed secret key (in serialized form)
538+ * }
539+ *
540+ * ended by a keyed SHA1 hash (bytes only) of
541+ * { password + whitener + preceding body }
542+ */
543+
544+ // password is mandatory when storing
545+ if (password == null) {
546+ throw new IllegalArgumentException("password can't be null");
547+ }
548+
549+ byte[] encoded; // the certificate encoding
550+
551+ MessageDigest md = getPreKeyedHash(password);
552+ DataOutputStream dos
553+ = new DataOutputStream(new DigestOutputStream(stream, md));
554+ // NOTE: don't pass dos to oos at this point or it'll corrupt
555+ // the keystore!!!
556+ ObjectOutputStream oos = null;
557+ try {
558+ dos.writeInt(JCEKS_MAGIC);
559+ dos.writeInt(VERSION_2); // always write the latest version
560+
561+ dos.writeInt(entries.size());
562+
563+ Enumeration e = entries.keys();
564+ while (e.hasMoreElements()) {
565+
566+ String alias = (String)e.nextElement();
567+ Object entry = entries.get(alias);
568+
569+ if (entry instanceof PrivateKeyEntry) {
570+
571+ PrivateKeyEntry pentry = (PrivateKeyEntry)entry;
572+
573+ // write PrivateKeyEntry tag
574+ dos.writeInt(1);
575+
576+ // write the alias
577+ dos.writeUTF(alias);
578+
579+ // write the (entry creation) date
580+ dos.writeLong(pentry.date.getTime());
581+
582+ // write the protected private key
583+ dos.writeInt(pentry.protectedKey.length);
584+ dos.write(pentry.protectedKey);
585+
586+ // write the certificate chain
587+ int chainLen;
588+ if (pentry.chain == null) {
589+ chainLen = 0;
590+ } else {
591+ chainLen = pentry.chain.length;
592+ }
593+ dos.writeInt(chainLen);
594+ for (int i = 0; i < chainLen; i++) {
595+ encoded = pentry.chain[i].getEncoded();
596+ dos.writeUTF(pentry.chain[i].getType());
597+ dos.writeInt(encoded.length);
598+ dos.write(encoded);
599+ }
600+
601+ } else if (entry instanceof TrustedCertEntry) {
602+
603+ // write TrustedCertEntry tag
604+ dos.writeInt(2);
605+
606+ // write the alias
607+ dos.writeUTF(alias);
608+
609+ // write the (entry creation) date
610+ dos.writeLong(((TrustedCertEntry)entry).date.getTime());
611+
612+ // write the trusted certificate
613+ encoded = ((TrustedCertEntry)entry).cert.getEncoded();
614+ dos.writeUTF(((TrustedCertEntry)entry).cert.getType());
615+ dos.writeInt(encoded.length);
616+ dos.write(encoded);
617+
618+ } else {
619+
620+ // write SecretKeyEntry tag
621+ dos.writeInt(3);
622+
623+ // write the alias
624+ dos.writeUTF(alias);
625+
626+ // write the (entry creation) date
627+ dos.writeLong(((SecretKeyEntry)entry).date.getTime());
628+
629+ // write the sealed key
630+ oos = new ObjectOutputStream(dos);
631+ oos.writeObject(((SecretKeyEntry)entry).sealedKey);
632+ // NOTE: don't close oos here since we are still
633+ // using dos!!!
634+ }
635+ }
636+
637+ /*
638+ * Write the keyed hash which is used to detect tampering with
639+ * the keystore (such as deleting or modifying key or
640+ * certificate entries).
641+ */
642+ byte digest[] = md.digest();
643+
644+ dos.write(digest);
645+ dos.flush();
646+ } finally {
647+ if (oos != null) {
648+ oos.close();
649+ } else {
650+ dos.close();
651+ }
652+ }
653+ }
654+ }
655+
656+ /**
657+ * Loads the keystore from the given input stream.
658+ *
659+ * <p>If a password is given, it is used to check the integrity of the
660+ * keystore data. Otherwise, the integrity of the keystore is not checked.
661+ *
662+ * @param stream the input stream from which the keystore is loaded
663+ * @param password the (optional) password used to check the integrity of
664+ * the keystore.
665+ *
666+ * @exception IOException if there is an I/O or format problem with the
667+ * keystore data
668+ * @exception NoSuchAlgorithmException if the algorithm used to check
669+ * the integrity of the keystore cannot be found
670+ * @exception CertificateException if any of the certificates in the
671+ * keystore could not be loaded
672+ */
673+ public void engineLoad(InputStream stream, char[] password)
674+ throws IOException, NoSuchAlgorithmException, CertificateException
675+ {
676+ synchronized(entries) {
677+ DataInputStream dis;
678+ MessageDigest md = null;
679+ CertificateFactory cf = null;
680+ Hashtable cfs = null;
681+ ByteArrayInputStream bais = null;
682+ byte[] encoded = null;
683+
684+ if (stream == null)
685+ return;
686+
687+ if (password != null) {
688+ md = getPreKeyedHash(password);
689+ dis = new DataInputStream(new DigestInputStream(stream, md));
690+ } else {
691+ dis = new DataInputStream(stream);
692+ }
693+ // NOTE: don't pass dis to ois at this point or it'll fail to load
694+ // the keystore!!!
695+ ObjectInputStream ois = null;
696+
697+ try {
698+ // Body format: see store method
699+
700+ int xMagic = dis.readInt();
701+ int xVersion = dis.readInt();
702+
703+ // Accept the following keystore implementations:
704+ // - JCEKS (this implementation), versions 1 and 2
705+ // - JKS (Sun's keystore implementation in JDK 1.2),
706+ // versions 1 and 2
707+ if (((xMagic != JCEKS_MAGIC) && (xMagic != JKS_MAGIC)) ||
708+ ((xVersion != VERSION_1) && (xVersion != VERSION_2))) {
709+ throw new IOException("Invalid keystore format");
710+ }
711+
712+ if (xVersion == VERSION_1) {
713+ cf = CertificateFactory.getInstance("X509");
714+ } else {
715+ // version 2
716+ cfs = new Hashtable(3);
717+ }
718+
719+ entries.clear();
720+ int count = dis.readInt();
721+
722+ for (int i = 0; i < count; i++) {
723+ int tag;
724+ String alias;
725+
726+ tag = dis.readInt();
727+
728+ if (tag == 1) { // private-key entry
729+
730+ PrivateKeyEntry entry = new PrivateKeyEntry();
731+
732+ // read the alias
733+ alias = dis.readUTF();
734+
735+ // read the (entry creation) date
736+ entry.date = new Date(dis.readLong());
737+
738+ // read the private key
739+ try {
740+ entry.protectedKey = new byte[dis.readInt()];
741+ } catch (OutOfMemoryError e) {
742+ throw new IOException("Keysize too big");
743+ }
744+ dis.readFully(entry.protectedKey);
745+
746+ // read the certificate chain
747+ int numOfCerts = dis.readInt();
748+ try {
749+ if (numOfCerts > 0) {
750+ entry.chain = new Certificate[numOfCerts];
751+ }
752+ } catch (OutOfMemoryError e) {
753+ throw new IOException("Too many certificates in "
754+ + "chain");
755+ }
756+ for (int j = 0; j < numOfCerts; j++) {
757+ if (xVersion == 2) {
758+ // read the certificate type, and instantiate a
759+ // certificate factory of that type (reuse
760+ // existing factory if possible)
761+ String certType = dis.readUTF();
762+ if (cfs.containsKey(certType)) {
763+ // reuse certificate factory
764+ cf = (CertificateFactory)cfs.get(certType);
765+ } else {
766+ // create new certificate factory
767+ cf = CertificateFactory.getInstance(
768+ certType);
769+ // store the certificate factory so we can
770+ // reuse it later
771+ cfs.put(certType, cf);
772+ }
773+ }
774+ // instantiate the certificate
775+ try {
776+ encoded = new byte[dis.readInt()];
777+ } catch (OutOfMemoryError e) {
778+ throw new IOException("Certificate too big");
779+ }
780+ dis.readFully(encoded);
781+ bais = new ByteArrayInputStream(encoded);
782+ entry.chain[j] = cf.generateCertificate(bais);
783+ }
784+
785+ // Add the entry to the list
786+ entries.put(alias, entry);
787+
788+ } else if (tag == 2) { // trusted certificate entry
789+
790+ TrustedCertEntry entry = new TrustedCertEntry();
791+
792+ // read the alias
793+ alias = dis.readUTF();
794+
795+ // read the (entry creation) date
796+ entry.date = new Date(dis.readLong());
797+
798+ // read the trusted certificate
799+ if (xVersion == 2) {
800+ // read the certificate type, and instantiate a
801+ // certificate factory of that type (reuse
802+ // existing factory if possible)
803+ String certType = dis.readUTF();
804+ if (cfs.containsKey(certType)) {
805+ // reuse certificate factory
806+ cf = (CertificateFactory)cfs.get(certType);
807+ } else {
808+ // create new certificate factory
809+ cf = CertificateFactory.getInstance(certType);
810+ // store the certificate factory so we can
811+ // reuse it later
812+ cfs.put(certType, cf);
813+ }
814+ }
815+ try {
816+ encoded = new byte[dis.readInt()];
817+ } catch (OutOfMemoryError e) {
818+ throw new IOException("Certificate too big");
819+ }
820+ dis.readFully(encoded);
821+ bais = new ByteArrayInputStream(encoded);
822+ entry.cert = cf.generateCertificate(bais);
823+
824+ // Add the entry to the list
825+ entries.put(alias, entry);
826+
827+ } else if (tag == 3) { // secret-key entry
828+
829+ SecretKeyEntry entry = new SecretKeyEntry();
830+
831+ // read the alias
832+ alias = dis.readUTF();
833+
834+ // read the (entry creation) date
835+ entry.date = new Date(dis.readLong());
836+
837+ // read the sealed key
838+ try {
839+ ois = new ObjectInputStream(dis);
840+ entry.sealedKey = (SealedObject)ois.readObject();
841+ // NOTE: don't close ois here since we are still
842+ // using dis!!!
843+ } catch (ClassNotFoundException cnfe) {
844+ throw new IOException(cnfe.getMessage());
845+ }
846+
847+ // Add the entry to the list
848+ entries.put(alias, entry);
849+
850+ } else {
851+ throw new IOException("Unrecognized keystore entry");
852+ }
853+ }
854+
855+ /*
856+ * If a password has been provided, we check the keyed digest
857+ * at the end. If this check fails, the store has been tampered
858+ * with
859+ */
860+ if (password != null) {
861+ byte computed[], actual[];
862+ computed = md.digest();
863+ actual = new byte[computed.length];
864+ dis.readFully(actual);
865+ for (int i = 0; i < computed.length; i++) {
866+ if (computed[i] != actual[i]) {
867+ throw new IOException(
868+ "Keystore was tampered with, or "
869+ + "password was incorrect");
870+ }
871+ }
872+ }
873+ } finally {
874+ if (ois != null) {
875+ ois.close();
876+ } else {
877+ dis.close();
878+ }
879+ }
880+ }
881+ }
882+
883+ /**
884+ * To guard against tampering with the keystore, we append a keyed
885+ * hash with a bit of whitener.
886+ */
887+ private MessageDigest getPreKeyedHash(char[] password)
888+ throws NoSuchAlgorithmException, UnsupportedEncodingException {
889+ int i, j;
890+
891+ MessageDigest md = MessageDigest.getInstance("SHA");
892+ byte[] passwdBytes = new byte[password.length * 2];
893+ for (i=0, j=0; i<password.length; i++) {
894+ passwdBytes[j++] = (byte)(password[i] >> 8);
895+ passwdBytes[j++] = (byte)password[i];
896+ }
897+ md.update(passwdBytes);
898+ for (i=0; i<passwdBytes.length; i++)
899+ passwdBytes[i] = 0;
900+ md.update("Mighty Aphrodite".getBytes("UTF8"));
901+ return md;
902+ }
903+}