Source for java.security.AlgorithmParameterGeneratorSpi

   1: /* AlgorithmParameterGeneratorSpi.java --- Algorithm Parameter Generator SPI
   2:    Copyright (C) 1999 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package java.security;
  39: import java.security.spec.AlgorithmParameterSpec;
  40: 
  41: /**
  42:    AlgorithmParameterGeneratorSpi is the Service Provider 
  43:    Interface for the AlgorithmParameterGenerator class. 
  44:    This class is used to generate the algorithm parameters
  45:    for a specific algorithm.
  46: 
  47:    @since JDK 1.2
  48:    @author Mark Benvenuto
  49:  */
  50: public abstract class AlgorithmParameterGeneratorSpi
  51: {
  52: 
  53:   /**
  54:      Constructs a new AlgorithmParameterGeneratorSpi
  55:    */
  56:   public AlgorithmParameterGeneratorSpi()
  57:   {
  58:   }
  59: 
  60:   /**
  61:      Initializes the parameter generator with the specified size
  62:      and SecureRandom
  63: 
  64:      @param size the size( in number of bits) 
  65:      @param random the SecureRandom class to use for randomness
  66:    */
  67:   protected abstract void engineInit(int size, SecureRandom random);
  68: 
  69:   /**
  70:      Initializes the parameter generator with the specified
  71:      AlgorithmParameterSpec and SecureRandom classes.
  72: 
  73:      If genParamSpec is an invalid AlgorithmParameterSpec for this
  74:      AlgorithmParameterGeneratorSpi then it throws
  75:      InvalidAlgorithmParameterException
  76: 
  77:      @param genParamSpec the AlgorithmParameterSpec class to use
  78:      @param random the SecureRandom class to use for randomness
  79: 
  80:      @throws InvalidAlgorithmParameterException genParamSpec is invalid
  81:    */
  82:   protected abstract void engineInit(AlgorithmParameterSpec genParamSpec,
  83:                      SecureRandom random) throws
  84:     InvalidAlgorithmParameterException;
  85: 
  86: 
  87:   /**
  88:      Generate a new set of AlgorithmParameters.
  89: 
  90:      @returns a new set of algorithm parameters
  91:    */
  92:   protected abstract AlgorithmParameters engineGenerateParameters();
  93: 
  94: }