protected void engineInit(int opmode, Key key, AlgorithmParameterSpec params, SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException {
if (params != null && params instanceof RC2ParameterSpec) {
embeddedCipher.initEffectiveKeyBits(((RC2ParameterSpec) params).getEffectiveKeyBits());
} else {
embeddedCipher.initEffectiveKeyBits(0);
}
core.init(opmode, key, params, random);
}
protected void engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException {
if (params != null && params.getAlgorithm().equals("RC2")) {
try {
RC2ParameterSpec rc2Params = params.getParameterSpec(RC2ParameterSpec.class);
engineInit(opmode, key, rc2Params, random);
} catch (InvalidParameterSpecException ipse) {
throw new InvalidAlgorithmParameterException("Wrong parameter type: RC2 expected");
}
} else {
embeddedCipher.initEffectiveKeyBits(0);
core.init(opmode, key, params, random);
}
}
protected void engineInit(int opmode, Key key, SecureRandom random) throws InvalidKeyException {
embeddedCipher.initEffectiveKeyBits(0);
core.init(opmode, key, random);
}
protected int engineGetKeySize(Key key) throws InvalidKeyException {
byte[] keyBytes = CipherCore.getKeyBytes(key);
RC2Crypt.checkKey(key.getAlgorithm(), keyBytes.length);
return keyBytes.length << 3;
}