| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package javax.crypto; |
| |
| import java.security.InvalidAlgorithmParameterException; |
| import java.security.SecureRandom; |
| import java.security.spec.AlgorithmParameterSpec; |
| |
| /** |
| * The <i>Service Provider Interface</i> (<b>SPI</b>) definition for the |
| * {@code KeyGenerator} class. |
| * |
| * @see KeyGenerator |
| */ |
| public abstract class KeyGeneratorSpi { |
| |
| /** |
| * Creates a new {@code KeyGeneratorSpi} instance. |
| */ |
| public KeyGeneratorSpi() { |
| } |
| |
| /** |
| * Generates a secret key. |
| * |
| * @return the generated secret key. |
| */ |
| protected abstract SecretKey engineGenerateKey(); |
| |
| /** |
| * Initializes this {@code KeyGeneratorSpi} instance with the specified |
| * algorithm parameters and randomness source. |
| * |
| * @param params |
| * the parameters for the key generation algorithm. |
| * @param random |
| * the randomness source for any random bytes. |
| * @throws InvalidAlgorithmParameterException |
| * if the parameters cannot be uses to initialize this key |
| * generator algorithm. |
| */ |
| protected abstract void engineInit(AlgorithmParameterSpec params, |
| SecureRandom random) throws InvalidAlgorithmParameterException; |
| |
| /** |
| * Initializes this {@code KeyGenerator} instance for the specified key |
| * size (in bits) using the specified randomness source. |
| * |
| * @param keysize |
| * the size of the key (in bits). |
| * @param random |
| * the randomness source for any random bytes. |
| */ |
| protected abstract void engineInit(int keysize, SecureRandom random); |
| |
| /** |
| * Initializes this {@code KeyGenerator} with the specified randomness |
| * source. |
| * |
| * @param random |
| * the randomness source for any random bytes. |
| */ |
| protected abstract void engineInit(SecureRandom random); |
| } |