Examples with DSAEngine net.i2p.crypto.DSAEngine used on opensource projects

Example 1 with DSAEngine

use of net.i2p.crypto.DSAEngine in project i2p.i2p by i2p.

the class DatagramTest method testBadagram.

public void testBadagram() throws Exception {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    I2PClient client = I2PClientFactory.createClient();
    Destination d = client.createDestination(out);
    I2PSession session = client.createSession(new ByteArrayInputStream(out.toByteArray()), null);
    DSAEngine dsaEng = DSAEngine.getInstance();
    ByteArrayOutputStream dout = new ByteArrayOutputStream();
    d.writeBytes(dout);
    dsaEng.sign(Hash.FAKE_HASH.toByteArray(), session.getPrivateKey()).writeBytes(dout);
    dout.write(DataHelper.getASCII("blah"));
    byte[] data = dout.toByteArray();
    I2PDatagramDissector dd = new I2PDatagramDissector();
    dd.loadI2PDatagram(data);
    boolean error = false;
    try {
        dd.getPayload();
    } catch (I2PInvalidDatagramException i2pide) {
        error = true;
    }
    assertTrue(error);
    error = false;
    try {
        dd.getSender();
    } catch (I2PInvalidDatagramException i2pide) {
        error = true;
    }
    assertTrue(error);
    error = false;
    try {
        dd.getHash();
    } catch (I2PInvalidDatagramException i2pide) {
        error = true;
    }
    assertTrue(error);
}