001/* AlgorithmParameterGeneratorSpi.java --- Algorithm Parameter Generator SPI 002 Copyright (C) 1999 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038package java.security; 039import java.security.spec.AlgorithmParameterSpec; 040 041/** 042 AlgorithmParameterGeneratorSpi is the Service Provider 043 Interface for the AlgorithmParameterGenerator class. 044 This class is used to generate the algorithm parameters 045 for a specific algorithm. 046 047 @since JDK 1.2 048 @author Mark Benvenuto 049 */ 050public abstract class AlgorithmParameterGeneratorSpi 051{ 052 053 /** 054 Constructs a new AlgorithmParameterGeneratorSpi 055 */ 056 public AlgorithmParameterGeneratorSpi() 057 { 058 } 059 060 /** 061 Initializes the parameter generator with the specified size 062 and SecureRandom 063 064 @param size the size( in number of bits) 065 @param random the SecureRandom class to use for randomness 066 */ 067 protected abstract void engineInit(int size, SecureRandom random); 068 069 /** 070 Initializes the parameter generator with the specified 071 AlgorithmParameterSpec and SecureRandom classes. 072 073 If genParamSpec is an invalid AlgorithmParameterSpec for this 074 AlgorithmParameterGeneratorSpi then it throws 075 InvalidAlgorithmParameterException 076 077 @param genParamSpec the AlgorithmParameterSpec class to use 078 @param random the SecureRandom class to use for randomness 079 080 @throws InvalidAlgorithmParameterException genParamSpec is invalid 081 */ 082 protected abstract void engineInit(AlgorithmParameterSpec genParamSpec, 083 SecureRandom random) throws 084 InvalidAlgorithmParameterException; 085 086 087 /** 088 Generate a new set of AlgorithmParameters. 089 090 @returns a new set of algorithm parameters 091 */ 092 protected abstract AlgorithmParameters engineGenerateParameters(); 093 094}