001/* RSAOtherPrimeInfo.java -- 002 Copyright (C) 2003, 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.spec; 039 040import 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 */ 050public 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}