001 /* RSAOtherPrimeInfo.java -- 002 Copyright (C) 2003, Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 package java.security.spec; 039 040 import java.math.BigInteger; 041 042 /** 043 * An in-memory representation of the RSA triplet (prime, exponent, and 044 * coefficient) inside a PKCS#1 v2.1 <i>OtherPrimeInfo</i> structure. 045 * 046 * @since 1.4 047 * @see RSAPrivateCrtKeySpec 048 * @see java.security.interfaces.RSAMultiPrimePrivateCrtKey 049 */ 050 public class RSAOtherPrimeInfo 051 { 052 // Constants and fields 053 // -------------------------------------------------------------------------- 054 055 private BigInteger prime; 056 private BigInteger primeExponent; 057 private BigInteger crtCoefficient; 058 059 // Constructor(s) 060 // -------------------------------------------------------------------------- 061 062 /** 063 * Constructs a new <code>RSAOtherPrimeInfo</code> given the PKCS#1 MPIs. 064 * 065 * @param prime 066 * the prime factor of n. 067 * @param primeExponent 068 * the exponent. 069 * @param crtCoefficient 070 * the Chinese Remainder Theorem coefficient. 071 * @throws NullPointerException 072 * if any of the parameters is <code>null</code>. 073 */ 074 public RSAOtherPrimeInfo(BigInteger prime, BigInteger primeExponent, 075 BigInteger crtCoefficient) 076 { 077 super(); 078 079 if (prime == null) 080 throw new NullPointerException("prime"); 081 if (primeExponent == null) 082 throw new NullPointerException("primeExponent"); 083 if (crtCoefficient == null) 084 throw new NullPointerException("crtCoefficient"); 085 086 this.prime = prime; 087 this.primeExponent = primeExponent; 088 this.crtCoefficient = crtCoefficient; 089 } 090 091 // Class methods 092 // -------------------------------------------------------------------------- 093 094 // Instance methods 095 // -------------------------------------------------------------------------- 096 097 /** 098 * Returns the prime. 099 * 100 * @return the prime. 101 */ 102 public final BigInteger getPrime() 103 { 104 return this.prime; 105 } 106 107 /** 108 * Returns the prime's exponent. 109 * 110 * @return the primeExponent. 111 */ 112 public final BigInteger getExponent() 113 { 114 return this.primeExponent; 115 } 116 117 /** 118 * Returns the CRT Coefficient. 119 * 120 * @return the CRT Coefficient. 121 */ 122 public final BigInteger getCrtCoefficient() 123 { 124 return this.crtCoefficient; 125 } 126 }