Example usage for org.bouncycastle.crypto.engines ISAACEngine ISAACEngine

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.engines ISAACEngine ISAACEngine.

Prototype

ISAACEngine

Source Link

Usage

From source file:com.DSC.chat.Create.java

License:Open Source License

@Override
public boolean executeCommand() {

    if (!Pattern.matches("[a-zA-Z_\\s0-9-]+", this.channel)) {
        return false;
    }//  w  w  w . j  a va  2 s  .  c o  m

    // Generate seed
    byte[] seed = new byte[64]; // 512 bit seed 
    SecureRandom random = new SecureRandom();
    random.nextBytes(seed);

    // Create the symmetric key
    byte[] symmetricKey = new byte[16]; // 128 bit key
    ISAACRandomGenerator isaac = new ISAACRandomGenerator(new ISAACEngine());
    isaac.init(seed);
    isaac.nextBytes(symmetricKey);
    ProgramState.symmetricKey = symmetricKey;
    ProgramState.passphrase = this.passphrase;

    // Creator of channel is authenticated and has created the key
    ProgramState.AUTHENTICATED = true;
    ProgramState.KEY_RECEIVED = true;

    return true;
}

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From source file:com.DSC.client.SecureChannel.java

License:Open Source License

/**
 * @param args//from  w w  w. j a  va 2  s  .c om
 * @throws InterruptedException 
 * @throws IOException 
 */
public static void main(String[] args) throws InterruptedException, IOException {
    /* Create their private & public keys */
    ECKey key = new ECKey();
    key.init();
    ProgramState.publicKey = (ECPublicKeyParameters) key.getPublic();
    ProgramState.privateKey = (ECPrivateKeyParameters) key.getPrivate();

    /* Create the IV engine */
    byte[] seed = new byte[64]; // 512 bit seed 
    SecureRandom random = new SecureRandom();
    random.nextBytes(seed);
    ProgramState.IVEngine = new ISAACRandomGenerator(new ISAACEngine());
    ProgramState.IVEngine.init(seed);

    /* Create the blacklist and trusted contacts */
    ProgramState.blacklist = ConcurrentHashMultiset.create();
    ProgramState.trustedKeys = new ConcurrentHashMap<String, Address>();

    /* Set the time for the client accurately using a NTP server */
    DateTimeUtils.setCurrentMillisOffset(getTimeOffset());
    ProgramState.fmt = DateTimeFormat.forPattern("HH:mm:ss");

    /* Set the default nick as anonymous */
    ProgramState.nick = "anonymous";

    /* Initialize ISAACRandomGenerator, set ProgramState.IVEngine */
    receiveController = new ReceiveController();
    sendController = new SendController();

    /* Start input event handler loop */
    eventLoop();
}

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From source file:org.cryptacular.spec.StreamCipherSpec.java

License:Open Source License

@Override
public StreamCipher newInstance() {
    StreamCipher cipher;/*www .j a  v a2  s .c  om*/
    if ("Grainv1".equalsIgnoreCase(algorithm) || "Grain-v1".equalsIgnoreCase(algorithm)) {
        cipher = new ISAACEngine();
    } else if ("Grain128".equalsIgnoreCase(algorithm) || "Grain-128".equalsIgnoreCase(algorithm)) {
        cipher = new Grain128Engine();
    } else if ("ISAAC".equalsIgnoreCase(algorithm)) {
        cipher = new ISAACEngine();
    } else if ("HC128".equalsIgnoreCase(algorithm)) {
        cipher = new HC128Engine();
    } else if ("HC256".equalsIgnoreCase(algorithm)) {
        cipher = new HC256Engine();
    } else if ("RC4".equalsIgnoreCase(algorithm)) {
        cipher = new RC4Engine();
    } else if ("Salsa20".equalsIgnoreCase(algorithm)) {
        cipher = new Salsa20Engine();
    } else if ("VMPC".equalsIgnoreCase(algorithm)) {
        cipher = new VMPCEngine();
    } else {
        throw new IllegalStateException("Unsupported cipher algorithm " + algorithm);
    }
    return cipher;
}

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