throw new IllegalStateException("Unable to create 128 byte keys in 100 tries");
}
// place holder for the keys
DHPrivateKey privateKey = null;
DHPublicKey publicKey = null;
if (!kekOnly) {
KeyPair keyPair = null;
try {
keyPair = this.createKeys();
} catch (NoSuchAlgorithmException e) {
Debug.logError(e, module);
} catch (InvalidAlgorithmParameterException e) {
Debug.logError(e, module);
} catch (InvalidKeySpecException e) {
Debug.logError(e, module);
}
if (keyPair != null) {
publicKey = (DHPublicKey) keyPair.getPublic();
privateKey = (DHPrivateKey) keyPair.getPrivate();
if (publicKey == null || publicKey.getY().toByteArray().length != 128) {
// run again until we get a 128 byte public key for VL
return this.outputKeyCreation(loop, kekOnly, kekTest);
}
} else {
Debug.log("Returned a null KeyPair", module);
return this.outputKeyCreation(loop, kekOnly, kekTest);
}
} else {
// use our existing private key to generate a KEK
try {
privateKey = (DHPrivateKey) this.getPrivateKey();
} catch (Exception e) {
Debug.logError(e, module);
}
}
// the KEK
byte[] kekBytes = null;
try {
kekBytes = this.generateKek(privateKey);
} catch (NoSuchAlgorithmException e) {
Debug.logError(e, module);
} catch (InvalidKeySpecException e) {
Debug.logError(e, module);
} catch (InvalidKeyException e) {
Debug.logError(e, module);
}
// the 3DES KEK value
SecretKey loadedKek = this.getDesEdeKey(kekBytes);
byte[] loadKekBytes = loadedKek.getEncoded();
// test the KEK
Cipher cipher = this.getCipher(this.getKekKey(), Cipher.ENCRYPT_MODE);
byte[] kekTestB = { 0, 0, 0, 0, 0, 0, 0, 0 };
byte[] kekTestC = new byte[0];
if (kekTest != null) {
kekTestB = StringUtil.fromHexString(kekTest);
}
// encrypt the test bytes
try {
kekTestC = cipher.doFinal(kekTestB);
} catch (Exception e) {
Debug.logError(e, module);
}
if (!kekOnly) {
// public key (just Y)
BigInteger y = publicKey.getY();
byte[] yBytes = y.toByteArray();
String yHex = StringUtil.toHexString(yBytes);
buf.append("======== Begin Public Key (Y @ " + yBytes.length + " / " + yHex.length() + ") ========\n");
buf.append(yHex + "\n");
buf.append("======== End Public Key ========\n\n");