1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package javax.crypto.spec; 19 20 import java.security.spec.AlgorithmParameterSpec; 21 22 /** 23 * The algorithm parameter specification for generating Diffie-Hellman 24 * parameters used in Diffie-Hellman key agreement. 25 */ 26 public class DHGenParameterSpec implements AlgorithmParameterSpec { 27 28 private final int primeSize; 29 private final int exponentSize; 30 31 /** 32 * Creates a new <code>DHGenParameterSpec</code> instance with the specified 33 * parameters. 34 * 35 * @param primeSize 36 * the size of the <i>prime modulus</i> in bits. 37 * @param exponentSize 38 * the size of the <i>random exponent</i> in bits. 39 */ 40 public DHGenParameterSpec(int primeSize, int exponentSize) { 41 this.primeSize = primeSize; 42 this.exponentSize = exponentSize; 43 } 44 45 /** 46 * Returns the size of the <i>prime modulus</i> in bits. 47 * 48 * @return the size of the prime modulus in bits. 49 */ 50 public int getPrimeSize() { 51 return primeSize; 52 } 53 54 /** 55 * Returns the size of the <i>random exponent</i> in bits. 56 * 57 * @return the size of the random exponent in bits. 58 */ 59 public int getExponentSize() { 60 return exponentSize; 61 } 62 } 63 64
