| /* |
| * 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 java.security.interfaces; |
| |
| import java.security.InvalidParameterException; |
| import java.security.SecureRandom; |
| |
| /** |
| * The interface for key generators that can generate DSA key pairs. |
| */ |
| public interface DSAKeyPairGenerator { |
| |
| /** |
| * Initializes this generator with the prime ({@code p}), subprime ({@code |
| * q}), and base ({@code g}) values from the specified parameters. |
| * |
| * @param params |
| * the parameter values. |
| * @param random |
| * the source of randomness. |
| * @throws InvalidParameterException |
| * if the specified parameter values are {@code null} or |
| * invalid. |
| */ |
| public void initialize(DSAParams params, SecureRandom random) |
| throws InvalidParameterException; |
| |
| /** |
| * Initializes this generator for the specified modulus length. Valid values |
| * for the modulus length are the multiples of 8 between 512 and 1024. |
| * <p> |
| * The parameter {@code genParams} specifies whether this method should |
| * generate new prime ({@code p}), subprime ({@code q}), and base ({@code g}) |
| * values or whether |
| * it will use the pre-calculated values for the specified modulus |
| * length. Default parameters are available for modulus lengths of 512 and 1024 |
| * bits. |
| * |
| * @param modlen |
| * the length of the modulus in bits. |
| * @param genParams |
| * whether new values should be generated. |
| * @param random |
| * the source of randomness. |
| * @throws InvalidParameterException |
| * if the specified modulus length is not valid, or if there are |
| * no pre-calculated values and {@code genParams} is {@code |
| * false}. |
| */ |
| public void initialize(int modlen, boolean genParams, SecureRandom random) |
| throws InvalidParameterException; |
| } |