// see JCE spec
protected void engineInit(int opmode, Key key, AlgorithmParameterSpec params, SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException {
byte[] ivValue;
if (params != null) {
if (params instanceof IvParameterSpec == false) {
throw new InvalidAlgorithmParameterException("Only IvParameterSpec supported");
}
IvParameterSpec ivSpec = (IvParameterSpec) params;
ivValue = ivSpec.getIV();
} else {
ivValue = null;
}
implInit(opmode, key, ivValue, random);
}
// see JCE spec
protected void engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException {
byte[] ivValue;
if (params != null) {
try {
IvParameterSpec ivSpec = (IvParameterSpec) params.getParameterSpec(IvParameterSpec.class);
ivValue = ivSpec.getIV();
} catch (InvalidParameterSpecException e) {
throw new InvalidAlgorithmParameterException("Could not decode IV", e);
}
} else {
ivValue = null;
}
implInit(opmode, key, ivValue, random);
}