Examples with SessionKey net.i2p.data.SessionKey used on opensource projects

Example 51 with SessionKey

use of net.i2p.data.SessionKey in project i2p.i2p by i2p.

the class CryptixAESEngineTest method testFake.

public static void testFake() {
    I2PAppContext ctx = I2PAppContext.getGlobalContext();
    SessionKey key = ctx.keyGenerator().generateSessionKey();
    SessionKey wrongKey = ctx.keyGenerator().generateSessionKey();
    byte[] iv = new byte[16];
    byte[] orig = new byte[128];
    byte[] encrypted = new byte[128];
    byte[] decrypted = new byte[128];
    ctx.random().nextBytes(iv);
    ctx.random().nextBytes(orig);
    CryptixAESEngine aes = new CryptixAESEngine(ctx);
    aes.encrypt(orig, 0, encrypted, 0, key, iv, orig.length);
    aes.decrypt(encrypted, 0, decrypted, 0, wrongKey, iv, encrypted.length);
    assertFalse(DataHelper.eq(decrypted, orig));
}

Example 52 with SessionKey

use of net.i2p.data.SessionKey in project i2p.i2p by i2p.

the class CryptixAESEngineTest method testEDBlock2.

public static void testEDBlock2() {
    I2PAppContext ctx = I2PAppContext.getGlobalContext();
    SessionKey key = ctx.keyGenerator().generateSessionKey();
    byte[] iv = new byte[16];
    byte[] orig = new byte[16];
    byte[] data = new byte[16];
    ctx.random().nextBytes(iv);
    ctx.random().nextBytes(orig);
    CryptixAESEngine aes = new CryptixAESEngine(ctx);
    aes.encryptBlock(orig, 0, key, data, 0);
    aes.decryptBlock(data, 0, key, data, 0);
    assertTrue(DataHelper.eq(data, orig));
}

Example 53 with SessionKey

use of net.i2p.data.SessionKey in project i2p.i2p by i2p.

the class CryptixAESEngineTest method testNull.

public static void testNull() {
    I2PAppContext ctx = I2PAppContext.getGlobalContext();
    SessionKey key = ctx.keyGenerator().generateSessionKey();
    SessionKey wrongKey = ctx.keyGenerator().generateSessionKey();
    byte[] iv = new byte[16];
    byte[] orig = new byte[128];
    byte[] encrypted = new byte[128];
    byte[] decrypted = new byte[128];
    ctx.random().nextBytes(iv);
    ctx.random().nextBytes(orig);
    CryptixAESEngine aes = new CryptixAESEngine(ctx);
    aes.encrypt(orig, 0, encrypted, 0, key, iv, orig.length);
    boolean error = false;
    try {
        aes.decrypt(null, 0, null, 0, wrongKey, iv, encrypted.length);
    } catch (IllegalArgumentException iae) {
        error = true;
    }
    assertTrue(error);
}

Example 54 with SessionKey

use of net.i2p.data.SessionKey in project i2p.i2p by i2p.

the class SessionEncryptionTest method testRekeying.

/**
 *  Run tagsIncluded    useTag  rekey
 *  1   yes (2)         no      no
 *  2   no              yes     no
 *  3   yes (2)         yes     yes
 *  4   no              yes     no
 *  5   no              yes     no
 */
public void testRekeying() throws Exception {
    Object[] keys = KeyGenerator.getInstance().generatePKIKeypair();
    PublicKey pubKey = (PublicKey) keys[0];
    PrivateKey privKey = (PrivateKey) keys[1];
    SessionKeyManager skm = new TransientSessionKeyManager(_context);
    SessionKey curKey = skm.createSession(pubKey);
    SessionKey nextKey = KeyGenerator.getInstance().generateSessionKey();
    SessionTag tag1 = new SessionTag(true);
    SessionTag tag2 = new SessionTag(true);
    SessionTag tag3 = new SessionTag(true);
    SessionTag tag4 = new SessionTag(true);
    HashSet<SessionTag> firstTags = new HashSet<SessionTag>();
    firstTags.add(tag1);
    firstTags.add(tag2);
    HashSet<SessionTag> secondTags = new HashSet<SessionTag>();
    secondTags.add(tag3);
    secondTags.add(tag4);
    byte[] msg1 = DataHelper.getASCII("msg 1");
    byte[] msg2 = DataHelper.getASCII("msg 2");
    byte[] msg3 = DataHelper.getASCII("msg 3");
    byte[] msg4 = DataHelper.getASCII("msg 4");
    byte[] msg5 = DataHelper.getASCII("msg 5");
    byte[] emsg1 = _context.elGamalAESEngine().encrypt(msg1, pubKey, curKey, firstTags, null, 64);
    byte[] dmsg1 = _context.elGamalAESEngine().decrypt(emsg1, privKey, skm);
    assertTrue(DataHelper.eq(dmsg1, msg1));
    TagSetHandle tsh = skm.tagsDelivered(pubKey, curKey, firstTags);
    skm.tagsAcked(pubKey, curKey, tsh);
    curKey = skm.getCurrentKey(pubKey);
    SessionTag curTag = skm.consumeNextAvailableTag(pubKey, curKey);
    assertNotNull(curTag);
    byte[] emsg2 = _context.elGamalAESEngine().encrypt(msg2, pubKey, curKey, null, curTag, 64);
    byte[] dmsg2 = _context.elGamalAESEngine().decrypt(emsg2, privKey, skm);
    assertTrue(DataHelper.eq(dmsg2, msg2));
    curKey = skm.getCurrentKey(pubKey);
    curTag = skm.consumeNextAvailableTag(pubKey, curKey);
    assertNotNull(curTag);
    assertNotNull(curKey);
    byte[] emsg3 = _context.elGamalAESEngine().encrypt(msg3, pubKey, curKey, secondTags, curTag, nextKey, 64);
    byte[] dmsg3 = _context.elGamalAESEngine().decrypt(emsg3, privKey, skm);
    assertTrue(DataHelper.eq(dmsg3, msg3));
    // note nextKey not curKey
    tsh = skm.tagsDelivered(pubKey, nextKey, secondTags);
    skm.tagsAcked(pubKey, nextKey, tsh);
    curKey = skm.getCurrentKey(pubKey);
    curTag = skm.consumeNextAvailableTag(pubKey, curKey);
    assertNotNull(curTag);
    assertNotNull(curKey);
    byte[] emsg4 = _context.elGamalAESEngine().encrypt(msg4, pubKey, curKey, null, curTag, 64);
    byte[] dmsg4 = _context.elGamalAESEngine().decrypt(emsg4, privKey, skm);
    assertTrue(DataHelper.eq(dmsg4, msg4));
    curKey = skm.getCurrentKey(pubKey);
    curTag = skm.consumeNextAvailableTag(pubKey, curKey);
    assertNotNull(curTag);
    assertNotNull(curKey);
    byte[] emsg5 = _context.elGamalAESEngine().encrypt(msg5, pubKey, curKey, null, curTag, 64);
    byte[] dmsg5 = _context.elGamalAESEngine().decrypt(emsg5, privKey, skm);
    assertTrue(DataHelper.eq(dmsg5, msg5));
}

Example 55 with SessionKey

use of net.i2p.data.SessionKey in project i2p.i2p by i2p.

the class SessionEncryptionTest method testLongSession.

/**
 *  20 tags every 10 messages, rekey every 50
 */
public void testLongSession() throws Exception {
    Object[] keys = KeyGenerator.getInstance().generatePKIKeypair();
    PublicKey pubKey = (PublicKey) keys[0];
    PrivateKey privKey = (PrivateKey) keys[1];
    SessionKeyManager skm = new TransientSessionKeyManager(_context);
    SessionKey curKey = skm.createSession(pubKey);
    for (int i = 0; i < 1000; i++) {
        Set<SessionTag> tags = null;
        SessionKey nextKey = null;
        curKey = skm.getCurrentKey(pubKey);
        SessionTag curTag = skm.consumeNextAvailableTag(pubKey, curKey);
        int availTags = skm.getAvailableTags(pubKey, curKey);
        if ((availTags < 1)) {
            tags = generateNewTags(50);
        }
        if (i % 50 == 0)
            nextKey = KeyGenerator.getInstance().generateSessionKey();
        byte[] msg = DataHelper.getASCII("msg " + i);
        byte[] emsg = _context.elGamalAESEngine().encrypt(msg, pubKey, curKey, tags, curTag, nextKey, 64);
        byte[] dmsg = _context.elGamalAESEngine().decrypt(emsg, privKey, skm);
        assertTrue(DataHelper.eq(dmsg, msg));
        if ((tags != null) && (tags.size() > 0)) {
            if (nextKey == null) {
                TagSetHandle tsh = skm.tagsDelivered(pubKey, curKey, tags);
                skm.tagsAcked(pubKey, curKey, tsh);
            } else {
                TagSetHandle tsh = skm.tagsDelivered(pubKey, nextKey, tags);
                skm.tagsAcked(pubKey, nextKey, tsh);
            }
        }
    }
}