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1: /* RSAOtherPrimeInfo.java -- 2: Copyright (C) 2003, 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.spec; 39: 40: import java.math.BigInteger; 41: 42: /** 43: * This class represents the triplet (prime, exponent, and coefficient) inside 44: * RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2.1. The ASN.1 45: * syntax of RSA's OtherPrimeInfo is as follows: 46: * 47: * <pre> 48: * OtherPrimeInfo ::= SEQUENCE { 49: * prime INTEGER, 50: * exponent INTEGER, 51: * coefficient INTEGER 52: * } 53: * </pre> 54: * 55: * @since 1.4 56: * @see RSAPrivateCrtKeySpec 57: * @see java.security.interfaces.RSAMultiPrimePrivateCrtKey 58: */ 59: public class RSAOtherPrimeInfo 60: { 61: // Constants and fields 62: // -------------------------------------------------------------------------- 63: 64: private BigInteger prime; 65: private BigInteger primeExponent; 66: private BigInteger crtCoefficient; 67: 68: // Constructor(s) 69: // -------------------------------------------------------------------------- 70: 71: /** 72: * Creates a new <code>RSAOtherPrimeInfo</code> given the prime, 73: * primeExponent, and crtCoefficient as defined in PKCS#1. 74: * 75: * @param prime the prime factor of n. 76: * @param primeExponent the exponent. 77: * @param crtCoefficient the Chinese Remainder Theorem coefficient. 78: * @throws NullPointerException if any of the parameters, i.e. prime, 79: * primeExponent, crtCoefficient, is <code>null</code>. 80: */ 81: public RSAOtherPrimeInfo(BigInteger prime, BigInteger primeExponent, 82: BigInteger crtCoefficient) 83: { 84: super(); 85: 86: if (prime == null) 87: throw new NullPointerException("prime"); 88: if (primeExponent == null) 89: throw new NullPointerException("primeExponent"); 90: if (crtCoefficient == null) 91: throw new NullPointerException("crtCoefficient"); 92: 93: this.prime = prime; 94: this.primeExponent = primeExponent; 95: this.crtCoefficient = crtCoefficient; 96: } 97: 98: // Class methods 99: // -------------------------------------------------------------------------- 100: 101: // Instance methods 102: // -------------------------------------------------------------------------- 103: 104: /** 105: * Returns the prime. 106: * 107: * @return the prime. 108: */ 109: public final BigInteger getPrime() 110: { 111: return this.prime; 112: } 113: 114: /** 115: * Returns the prime's exponent. 116: * 117: * @return the primeExponent. 118: */ 119: public final BigInteger getExponent() 120: { 121: return this.primeExponent; 122: } 123: 124: /** 125: * Returns the prime's crtCoefficient. 126: * 127: * @return the crtCoefficient. 128: */ 129: public final BigInteger getCrtCoefficient() 130: { 131: return this.crtCoefficient; 132: } 133: }
GNU Classpath (0.20) |