diff options
Diffstat (limited to 'OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/tests/UncachedKeyringCanonicalizeTest.java')
| -rw-r--r-- | OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/tests/UncachedKeyringCanonicalizeTest.java | 625 |
1 files changed, 625 insertions, 0 deletions
diff --git a/OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/tests/UncachedKeyringCanonicalizeTest.java b/OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/tests/UncachedKeyringCanonicalizeTest.java new file mode 100644 index 000000000..b7181fdab --- /dev/null +++ b/OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/tests/UncachedKeyringCanonicalizeTest.java @@ -0,0 +1,625 @@ +package org.sufficientlysecure.keychain.tests; + +import org.junit.BeforeClass; +import org.junit.runner.RunWith; +import org.junit.Assert; +import org.junit.Test; +import org.junit.Before; +import org.robolectric.RobolectricTestRunner; +import org.robolectric.shadows.ShadowLog; +import org.spongycastle.bcpg.BCPGInputStream; +import org.spongycastle.bcpg.Packet; +import org.spongycastle.bcpg.PacketTags; +import org.spongycastle.bcpg.UserIDPacket; +import org.spongycastle.bcpg.sig.KeyFlags; +import org.spongycastle.openpgp.PGPPrivateKey; +import org.spongycastle.openpgp.PGPPublicKey; +import org.spongycastle.openpgp.PGPSecretKey; +import org.spongycastle.openpgp.PGPSecretKeyRing; +import org.spongycastle.openpgp.PGPSignature; +import org.spongycastle.openpgp.PGPSignatureGenerator; +import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator; +import org.spongycastle.openpgp.PGPUtil; +import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor; +import org.spongycastle.openpgp.operator.PGPContentSignerBuilder; +import org.spongycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator; +import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder; +import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder; +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.pgp.PgpKeyOperation; +import org.sufficientlysecure.keychain.pgp.UncachedKeyRing; +import org.sufficientlysecure.keychain.pgp.UncachedPublicKey; +import org.sufficientlysecure.keychain.pgp.WrappedSignature; +import org.sufficientlysecure.keychain.service.OperationResultParcel; +import org.sufficientlysecure.keychain.service.SaveKeyringParcel; +import org.sufficientlysecure.keychain.support.KeyringTestingHelper; +import org.sufficientlysecure.keychain.support.KeyringTestingHelper.RawPacket; + +import java.io.ByteArrayInputStream; +import java.util.ArrayList; +import java.util.Date; +import java.util.Iterator; + + +/** Tests for the UncachedKeyring.canonicalize method. + * + * This is a complex and crypto-relevant method, which takes care of sanitizing keyrings. + * Test cases are made for all its assertions. + */ + +@RunWith(RobolectricTestRunner.class) +@org.robolectric.annotation.Config(emulateSdk = 18) // Robolectric doesn't yet support 19 +public class UncachedKeyringCanonicalizeTest { + + static UncachedKeyRing staticRing; + static int totalPackets; + UncachedKeyRing ring; + ArrayList<RawPacket> onlyA = new ArrayList<RawPacket>(); + ArrayList<RawPacket> onlyB = new ArrayList<RawPacket>(); + OperationResultParcel.OperationLog log = new OperationResultParcel.OperationLog(); + PGPSignatureSubpacketGenerator subHashedPacketsGen; + PGPSecretKey secretKey; + + @BeforeClass + public static void setUpOnce() throws Exception { + ShadowLog.stream = System.out; + + SaveKeyringParcel parcel = new SaveKeyringParcel(); + parcel.mAddSubKeys.add(new SaveKeyringParcel.SubkeyAdd( + Constants.choice.algorithm.rsa, 1024, KeyFlags.CERTIFY_OTHER, null)); + parcel.mAddSubKeys.add(new SaveKeyringParcel.SubkeyAdd( + Constants.choice.algorithm.rsa, 1024, KeyFlags.SIGN_DATA, null)); + parcel.mAddSubKeys.add(new SaveKeyringParcel.SubkeyAdd( + Constants.choice.algorithm.rsa, 1024, KeyFlags.ENCRYPT_COMMS, null)); + + parcel.mAddUserIds.add("twi"); + parcel.mAddUserIds.add("pink"); + // passphrase is tested in PgpKeyOperationTest, just use empty here + parcel.mNewPassphrase = ""; + PgpKeyOperation op = new PgpKeyOperation(null); + + OperationResultParcel.OperationLog log = new OperationResultParcel.OperationLog(); + staticRing = op.createSecretKeyRing(parcel, log, 0); + + Assert.assertNotNull("initial test key creation must succeed", staticRing); + + // just for later reference + totalPackets = 9; + + // we sleep here for a second, to make sure all new certificates have different timestamps + Thread.sleep(1000); + } + + @Before public void setUp() throws Exception { + // show Log.x messages in system.out + ShadowLog.stream = System.out; + ring = staticRing; + + subHashedPacketsGen = new PGPSignatureSubpacketGenerator(); + secretKey = new PGPSecretKeyRing(ring.getEncoded(), new JcaKeyFingerprintCalculator()) + .getSecretKey(); + } + + /** Make sure the assumptions made about the generated ring packet structure are valid. */ + @Test public void testGeneratedRingStructure() throws Exception { + + Iterator<RawPacket> it = KeyringTestingHelper.parseKeyring(ring.getEncoded()); + + Assert.assertEquals("packet #1 should be secret key", + PacketTags.SECRET_KEY, it.next().tag); + + Assert.assertEquals("packet #2 should be user id", + PacketTags.USER_ID, it.next().tag); + Assert.assertEquals("packet #3 should be signature", + PacketTags.SIGNATURE, it.next().tag); + + Assert.assertEquals("packet #4 should be user id", + PacketTags.USER_ID, it.next().tag); + Assert.assertEquals("packet #5 should be signature", + PacketTags.SIGNATURE, it.next().tag); + + Assert.assertEquals("packet #6 should be secret subkey", + PacketTags.SECRET_SUBKEY, it.next().tag); + Assert.assertEquals("packet #7 should be signature", + PacketTags.SIGNATURE, it.next().tag); + + Assert.assertEquals("packet #8 should be secret subkey", + PacketTags.SECRET_SUBKEY, it.next().tag); + Assert.assertEquals("packet #9 should be signature", + PacketTags.SIGNATURE, it.next().tag); + + Assert.assertFalse("exactly 9 packets total", it.hasNext()); + + Assert.assertArrayEquals("created keyring should be constant through canonicalization", + ring.getEncoded(), ring.canonicalize(log, 0).getEncoded()); + + } + + @Test public void testUidSignature() throws Exception { + + UncachedPublicKey masterKey = ring.getPublicKey(); + final WrappedSignature sig = masterKey.getSignaturesForId("twi").next(); + + byte[] raw = sig.getEncoded(); + // destroy the signature + raw[raw.length - 5] += 1; + final WrappedSignature brokenSig = WrappedSignature.fromBytes(raw); + + { // bad certificates get stripped + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(ring, brokenSig.getEncoded(), 3); + modified = modified.canonicalize(log, 0); + + Assert.assertTrue("canonicalized keyring with invalid extra sig must be same as original one", + !KeyringTestingHelper.diffKeyrings( + ring.getEncoded(), modified.getEncoded(), onlyA, onlyB)); + } + + // remove user id certificate for one user + final UncachedKeyRing base = KeyringTestingHelper.removePacket(ring, 2); + + { // user id without certificate should be removed + UncachedKeyRing modified = base.canonicalize(log, 0); + Assert.assertTrue("canonicalized keyring must differ", KeyringTestingHelper.diffKeyrings( + ring.getEncoded(), modified.getEncoded(), onlyA, onlyB)); + + Assert.assertEquals("two packets should be stripped after canonicalization", 2, onlyA.size()); + Assert.assertEquals("no new packets after canonicalization", 0, onlyB.size()); + + Packet p = new BCPGInputStream(new ByteArrayInputStream(onlyA.get(0).buf)).readPacket(); + Assert.assertTrue("first stripped packet must be user id", p instanceof UserIDPacket); + Assert.assertEquals("missing user id must be the expected one", + "twi", ((UserIDPacket) p).getID()); + + Assert.assertArrayEquals("second stripped packet must be signature we removed", + sig.getEncoded(), onlyA.get(1).buf); + + } + + { // add error to signature + + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(base, brokenSig.getEncoded(), 3); + modified = modified.canonicalize(log, 0); + + Assert.assertTrue("canonicalized keyring must differ", KeyringTestingHelper.diffKeyrings( + ring.getEncoded(), modified.getEncoded(), onlyA, onlyB)); + + Assert.assertEquals("two packets should be missing after canonicalization", 2, onlyA.size()); + Assert.assertEquals("no new packets after canonicalization", 0, onlyB.size()); + + Packet p = new BCPGInputStream(new ByteArrayInputStream(onlyA.get(0).buf)).readPacket(); + Assert.assertTrue("first stripped packet must be user id", p instanceof UserIDPacket); + Assert.assertEquals("missing user id must be the expected one", + "twi", ((UserIDPacket) p).getID()); + + Assert.assertArrayEquals("second stripped packet must be signature we removed", + sig.getEncoded(), onlyA.get(1).buf); + } + + } + + @Test public void testUidDestroy() throws Exception { + + // signature for "twi" + ring = KeyringTestingHelper.removePacket(ring, 2); + // signature for "pink" + ring = KeyringTestingHelper.removePacket(ring, 3); + + // canonicalization should fail, because there are no valid uids left + UncachedKeyRing canonicalized = ring.canonicalize(log, 0); + Assert.assertNull("canonicalization of keyring with no valid uids should fail", canonicalized); + + } + + @Test public void testRevocationRedundant() throws Exception { + + PGPSignature revocation = forgeSignature( + secretKey, PGPSignature.KEY_REVOCATION, subHashedPacketsGen, secretKey.getPublicKey()); + + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(ring, revocation.getEncoded(), 1); + + // try to add the same packet again, it should be rejected in all positions + injectEverywhere(modified, revocation.getEncoded()); + + // an older (but different!) revocation should be rejected as well + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() -1000*1000)); + revocation = forgeSignature( + secretKey, PGPSignature.KEY_REVOCATION, subHashedPacketsGen, secretKey.getPublicKey()); + + injectEverywhere(modified, revocation.getEncoded()); + + } + + @Test public void testUidRedundant() throws Exception { + + // an older uid certificate should be rejected + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() -1000*1000)); + PGPSignature revocation = forgeSignature( + secretKey, PGPSignature.DEFAULT_CERTIFICATION, subHashedPacketsGen, "twi", secretKey.getPublicKey()); + + injectEverywhere(ring, revocation.getEncoded()); + + } + + @Test public void testUidRevocationOutdated() throws Exception { + // an older uid revocation cert should be rejected + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() -1000*1000)); + PGPSignature revocation = forgeSignature( + secretKey, PGPSignature.CERTIFICATION_REVOCATION, subHashedPacketsGen, "twi", secretKey.getPublicKey()); + + injectEverywhere(ring, revocation.getEncoded()); + + } + + @Test public void testUidRevocationRedundant() throws Exception { + + PGPSignature revocation = forgeSignature( + secretKey, PGPSignature.CERTIFICATION_REVOCATION, subHashedPacketsGen, "twi", secretKey.getPublicKey()); + + // add that revocation to the base, and check if the redundant one will be rejected as well + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(ring, revocation.getEncoded(), 2); + + injectEverywhere(modified, revocation.getEncoded()); + + // an older (but different!) uid revocation should be rejected as well + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() -1000*1000)); + revocation = forgeSignature( + secretKey, PGPSignature.CERTIFICATION_REVOCATION, subHashedPacketsGen, "twi", secretKey.getPublicKey()); + + injectEverywhere(modified, revocation.getEncoded()); + + } + + @Test public void testSignatureBroken() throws Exception { + + injectEverytype(secretKey, ring, subHashedPacketsGen, true); + + } + + @Test public void testForeignSignature() throws Exception { + + SaveKeyringParcel parcel = new SaveKeyringParcel(); + parcel.mAddSubKeys.add(new SaveKeyringParcel.SubkeyAdd( + Constants.choice.algorithm.rsa, 1024, KeyFlags.CERTIFY_OTHER, null)); + parcel.mAddUserIds.add("trix"); + PgpKeyOperation op = new PgpKeyOperation(null); + + OperationResultParcel.OperationLog log = new OperationResultParcel.OperationLog(); + UncachedKeyRing foreign = op.createSecretKeyRing(parcel, log, 0); + + Assert.assertNotNull("initial test key creation must succeed", foreign); + PGPSecretKey foreignSecretKey = + new PGPSecretKeyRing(foreign.getEncoded(), new JcaKeyFingerprintCalculator()) + .getSecretKey(); + + injectEverytype(foreignSecretKey, ring, subHashedPacketsGen); + + } + + @Test public void testSignatureFuture() throws Exception { + + // generate future + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() + 1000 * 1000)); + + injectEverytype(secretKey, ring, subHashedPacketsGen); + + + } + + @Test public void testSignatureLocal() throws Exception { + + // generate future + subHashedPacketsGen.setSignatureCreationTime(false, new Date()); + subHashedPacketsGen.setExportable(false, false); + + injectEverytype(secretKey, ring, subHashedPacketsGen); + + } + + @Test public void testSubkeyDestroy() throws Exception { + + // signature for second key (first subkey) + UncachedKeyRing modified = KeyringTestingHelper.removePacket(ring, 6); + + // canonicalization should fail, because there are no valid uids left + UncachedKeyRing canonicalized = modified.canonicalize(log, 0); + Assert.assertTrue("keyring with missing subkey binding sig should differ from intact one after canonicalization", + KeyringTestingHelper.diffKeyrings(ring.getEncoded(), canonicalized.getEncoded(), + onlyA, onlyB) + ); + + Assert.assertEquals("canonicalized keyring should have two extra packets", 2, onlyA.size()); + Assert.assertEquals("canonicalized keyring should have no extra packets", 0, onlyB.size()); + + Assert.assertEquals("first missing packet should be the subkey", + PacketTags.SECRET_SUBKEY, onlyA.get(0).tag); + Assert.assertEquals("second missing packet should be subkey's signature", + PacketTags.SIGNATURE, onlyA.get(1).tag); + Assert.assertEquals("second missing packet should be next to subkey", + onlyA.get(0).position + 1, onlyA.get(1).position); + + } + + @Test public void testSubkeyBindingNoPKB() throws Exception { + + UncachedPublicKey pKey = KeyringTestingHelper.getNth(ring.getPublicKeys(), 1); + Assert.assertTrue("second subkey must be able to sign", pKey.canSign()); + + PGPSignature sig; + + subHashedPacketsGen.setKeyFlags(false, KeyFlags.SIGN_DATA); + + { + // forge a (newer) signature, which has the sign flag but no primary key binding sig + PGPSignatureSubpacketGenerator unhashedSubs = new PGPSignatureSubpacketGenerator(); + + // just add any random signature, because why not + unhashedSubs.setEmbeddedSignature(false, forgeSignature( + secretKey, PGPSignature.POSITIVE_CERTIFICATION, subHashedPacketsGen, + secretKey.getPublicKey() + ) + ); + + sig = forgeSignature( + secretKey, PGPSignature.SUBKEY_BINDING, subHashedPacketsGen, unhashedSubs, + secretKey.getPublicKey(), pKey.getPublicKey()); + + // inject in the right position + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(ring, sig.getEncoded(), 6); + + // canonicalize, and check if we lose the bad signature + UncachedKeyRing canonicalized = modified.canonicalize(log, 0); + Assert.assertFalse("subkey binding signature should be gone after canonicalization", + KeyringTestingHelper.diffKeyrings(ring.getEncoded(), canonicalized.getEncoded(), + onlyA, onlyB) + ); + } + + { // now try one with a /bad/ primary key binding signature + + PGPSignatureSubpacketGenerator unhashedSubs = new PGPSignatureSubpacketGenerator(); + // this one is signed by the primary key itself, not the subkey - but it IS primary binding + unhashedSubs.setEmbeddedSignature(false, forgeSignature( + secretKey, PGPSignature.PRIMARYKEY_BINDING, subHashedPacketsGen, + secretKey.getPublicKey(), pKey.getPublicKey() + ) + ); + + sig = forgeSignature( + secretKey, PGPSignature.SUBKEY_BINDING, subHashedPacketsGen, unhashedSubs, + secretKey.getPublicKey(), pKey.getPublicKey()); + + // inject in the right position + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(ring, sig.getEncoded(), 6); + + // canonicalize, and check if we lose the bad signature + UncachedKeyRing canonicalized = modified.canonicalize(log, 0); + Assert.assertFalse("subkey binding signature should be gone after canonicalization", + KeyringTestingHelper.diffKeyrings(ring.getEncoded(), canonicalized.getEncoded(), + onlyA, onlyB) + ); + } + + } + + @Test public void testSubkeyBindingRedundant() throws Exception { + + UncachedPublicKey pKey = KeyringTestingHelper.getNth(ring.getPublicKeys(), 2); + + subHashedPacketsGen.setKeyFlags(false, KeyFlags.ENCRYPT_COMMS); + PGPSignature sig2 = forgeSignature( + secretKey, PGPSignature.SUBKEY_BINDING, subHashedPacketsGen, + secretKey.getPublicKey(), pKey.getPublicKey()); + + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() -1000*1000)); + PGPSignature sig1 = forgeSignature( + secretKey, PGPSignature.SUBKEY_REVOCATION, subHashedPacketsGen, + secretKey.getPublicKey(), pKey.getPublicKey()); + + subHashedPacketsGen = new PGPSignatureSubpacketGenerator(); + subHashedPacketsGen.setSignatureCreationTime(false, new Date(new Date().getTime() -100*1000)); + PGPSignature sig3 = forgeSignature( + secretKey, PGPSignature.SUBKEY_BINDING, subHashedPacketsGen, + secretKey.getPublicKey(), pKey.getPublicKey()); + + UncachedKeyRing modified = KeyringTestingHelper.injectPacket(ring, sig1.getEncoded(), 8); + modified = KeyringTestingHelper.injectPacket(modified, sig2.getEncoded(), 9); + modified = KeyringTestingHelper.injectPacket(modified, sig1.getEncoded(), 10); + modified = KeyringTestingHelper.injectPacket(modified, sig3.getEncoded(), 11); + + // canonicalize, and check if we lose the bad signature + UncachedKeyRing canonicalized = modified.canonicalize(log, 0); + Assert.assertTrue("subkey binding signature should be gone after canonicalization", + KeyringTestingHelper.diffKeyrings(modified.getEncoded(), canonicalized.getEncoded(), + onlyA, onlyB) + ); + + Assert.assertEquals("canonicalized keyring should have lost two packets", 3, onlyA.size()); + Assert.assertEquals("canonicalized keyring should have no extra packets", 0, onlyB.size()); + + Assert.assertEquals("first missing packet should be the subkey", + PacketTags.SIGNATURE, onlyA.get(0).tag); + Assert.assertEquals("second missing packet should be a signature", + PacketTags.SIGNATURE, onlyA.get(1).tag); + Assert.assertEquals("second missing packet should be a signature", + PacketTags.SIGNATURE, onlyA.get(2).tag); + + } + + private static final int[] sigtypes_direct = new int[] { + PGPSignature.KEY_REVOCATION, + PGPSignature.DIRECT_KEY, + }; + private static final int[] sigtypes_uid = new int[] { + PGPSignature.DEFAULT_CERTIFICATION, + PGPSignature.NO_CERTIFICATION, + PGPSignature.CASUAL_CERTIFICATION, + PGPSignature.POSITIVE_CERTIFICATION, + PGPSignature.CERTIFICATION_REVOCATION, + }; + private static final int[] sigtypes_subkey = new int[] { + PGPSignature.SUBKEY_BINDING, + PGPSignature.PRIMARYKEY_BINDING, + PGPSignature.SUBKEY_REVOCATION, + }; + + private static void injectEverytype(PGPSecretKey secretKey, + UncachedKeyRing ring, + PGPSignatureSubpacketGenerator subHashedPacketsGen) + throws Exception { + injectEverytype(secretKey, ring, subHashedPacketsGen, false); + } + + private static void injectEverytype(PGPSecretKey secretKey, + UncachedKeyRing ring, + PGPSignatureSubpacketGenerator subHashedPacketsGen, + boolean breakSig) + throws Exception { + + for (int sigtype : sigtypes_direct) { + PGPSignature sig = forgeSignature( + secretKey, sigtype, subHashedPacketsGen, secretKey.getPublicKey()); + byte[] encoded = sig.getEncoded(); + if (breakSig) { + encoded[encoded.length-10] += 1; + } + injectEverywhere(ring, encoded); + } + + for (int sigtype : sigtypes_uid) { + PGPSignature sig = forgeSignature( + secretKey, sigtype, subHashedPacketsGen, "twi", secretKey.getPublicKey()); + + byte[] encoded = sig.getEncoded(); + if (breakSig) { + encoded[encoded.length-10] += 1; + } + injectEverywhere(ring, encoded); + } + + for (int sigtype : sigtypes_subkey) { + PGPSignature sig = forgeSignature( + secretKey, sigtype, subHashedPacketsGen, + secretKey.getPublicKey(), secretKey.getPublicKey()); + + byte[] encoded = sig.getEncoded(); + if (breakSig) { + encoded[encoded.length-10] += 1; + } + injectEverywhere(ring, encoded); + } + + } + + private static void injectEverywhere(UncachedKeyRing ring, byte[] packet) throws Exception { + + OperationResultParcel.OperationLog log = new OperationResultParcel.OperationLog(); + + byte[] encodedRing = ring.getEncoded(); + + for(int i = 0; i < totalPackets; i++) { + + byte[] brokenEncoded = KeyringTestingHelper.injectPacket(encodedRing, packet, i); + + try { + + UncachedKeyRing brokenRing = UncachedKeyRing.decodeFromData(brokenEncoded); + + brokenRing = brokenRing.canonicalize(log, 0); + if (brokenRing == null) { + System.out.println("ok, canonicalization failed."); + continue; + } + + Assert.assertArrayEquals("injected bad signature must be gone after canonicalization", + ring.getEncoded(), brokenRing.getEncoded()); + + } catch (Exception e) { + System.out.println("ok, rejected with: " + e.getMessage()); + } + } + + } + + private static PGPSignature forgeSignature(PGPSecretKey key, int type, + PGPSignatureSubpacketGenerator subpackets, + PGPPublicKey publicKey) + throws Exception { + + PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider( + Constants.BOUNCY_CASTLE_PROVIDER_NAME).build("".toCharArray()); + PGPPrivateKey privateKey = key.extractPrivateKey(keyDecryptor); + + PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder( + publicKey.getAlgorithm(), PGPUtil.SHA1) + .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME); + + PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder); + sGen.setHashedSubpackets(subpackets.generate()); + sGen.init(type, privateKey); + return sGen.generateCertification(publicKey); + + } + + private static PGPSignature forgeSignature(PGPSecretKey key, int type, + PGPSignatureSubpacketGenerator subpackets, + String userId, PGPPublicKey publicKey) + throws Exception { + + PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider( + Constants.BOUNCY_CASTLE_PROVIDER_NAME).build("".toCharArray()); + PGPPrivateKey privateKey = key.extractPrivateKey(keyDecryptor); + + PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder( + publicKey.getAlgorithm(), PGPUtil.SHA1) + .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME); + + PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder); + sGen.setHashedSubpackets(subpackets.generate()); + sGen.init(type, privateKey); + return sGen.generateCertification(userId, publicKey); + + } + + private static PGPSignature forgeSignature(PGPSecretKey key, int type, + PGPSignatureSubpacketGenerator subpackets, + PGPPublicKey publicKey, PGPPublicKey signedKey) + throws Exception { + + PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider( + Constants.BOUNCY_CASTLE_PROVIDER_NAME).build("".toCharArray()); + PGPPrivateKey privateKey = key.extractPrivateKey(keyDecryptor); + + PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder( + publicKey.getAlgorithm(), PGPUtil.SHA1) + .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME); + + PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder); + sGen.setHashedSubpackets(subpackets.generate()); + sGen.init(type, privateKey); + return sGen.generateCertification(publicKey, signedKey); + + } + + private static PGPSignature forgeSignature(PGPSecretKey key, int type, + PGPSignatureSubpacketGenerator hashedSubs, + PGPSignatureSubpacketGenerator unhashedSubs, + PGPPublicKey publicKey, PGPPublicKey signedKey) + throws Exception { + + PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider( + Constants.BOUNCY_CASTLE_PROVIDER_NAME).build("".toCharArray()); + PGPPrivateKey privateKey = key.extractPrivateKey(keyDecryptor); + + PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder( + publicKey.getAlgorithm(), PGPUtil.SHA1) + .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME); + + PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder); + sGen.setHashedSubpackets(hashedSubs.generate()); + sGen.setUnhashedSubpackets(unhashedSubs.generate()); + sGen.init(type, privateKey); + return sGen.generateCertification(publicKey, signedKey); + + } + +} |