/**
* Initializes the Mac with the given secret key and algorithm parameters.
*
* @param key the secret key.
* @param params the algorithm parameters.
* @exception InvalidKeyException if the given key is inappropriate for initializing this MAC.
* @exception InvalidAlgorithmParameterException if the given algorithm parameters are
* inappropriate for this MAC.
*/
void init(Key key, AlgorithmParameterSpec params)
throws InvalidKeyException, InvalidAlgorithmParameterException {
if (params != null) {
throw new InvalidAlgorithmParameterException("SslMac does not use parameters");
}
if (!(key instanceof SecretKey)) {
throw new InvalidKeyException("Secret key expected");
}
secret = key.getEncoded();
if (secret == null || secret.length == 0) {
throw new InvalidKeyException("Missing key data");
}
reset();
}
protected void engineReset() {
core.reset();
}