/**
* Generates the public/private key pair from the init params
*
* @throws Exception
*/
public void initKeyPair() throws Exception {
// generate keys according to the specified algorithms
// generate publicKey and Private Key
KeyPairGenerator KpairGen = null;
if (asymProvider != null && !asymProvider.trim().isEmpty())
KpairGen = KeyPairGenerator.getInstance(getAlgorithm(asymAlgorithm), asymProvider);
else KpairGen = KeyPairGenerator.getInstance(getAlgorithm(asymAlgorithm));
KpairGen.initialize(asymInit, new SecureRandom());
Kpair = KpairGen.generateKeyPair();
// set up the Cipher to decrypt secret key responses encrypted with our key
if (asymProvider != null && !asymProvider.trim().isEmpty())
asymCipher = Cipher.getInstance(asymAlgorithm, asymProvider);
else asymCipher = Cipher.getInstance(asymAlgorithm);
asymCipher.init(Cipher.DECRYPT_MODE, Kpair.getPrivate());
log.debug("asym algo initialized");
}
/** send client's public key to server and request server's public key */
private void sendKeyRequest() {
Message newMsg =
new Message(keyServerAddr, local_addr, Kpair.getPublic().getEncoded())
.putHeader(this.id, new EncryptHeader(EncryptHeader.KEY_REQUEST, getSymVersion()));
down_prot.down(new Event(Event.MSG, newMsg));
}