/* * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.security.spec; import java.math.BigInteger; /** * This class represents the triplet (prime, exponent, and coefficient) * inside RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2.1. * The ASN.1 syntax of RSA's OtherPrimeInfo is as follows: * *
* OtherPrimeInfo ::= SEQUENCE { * prime INTEGER, * exponent INTEGER, * coefficient INTEGER * } * ** * @author Valerie Peng * * * @see RSAPrivateCrtKeySpec * @see java.security.interfaces.RSAMultiPrimePrivateCrtKey * * @since 1.4 */ public class RSAOtherPrimeInfo { private BigInteger prime; private BigInteger primeExponent; private BigInteger crtCoefficient; /** * Creates a new {@code RSAOtherPrimeInfo} * given the prime, primeExponent, and * crtCoefficient as defined in PKCS#1. * * @param prime the prime factor of n. * @param primeExponent the exponent. * @param crtCoefficient the Chinese Remainder Theorem * coefficient. * @exception NullPointerException if any of the parameters, i.e. * {@code prime}, {@code primeExponent}, * {@code crtCoefficient}, is null. * */ public RSAOtherPrimeInfo(BigInteger prime, BigInteger primeExponent, BigInteger crtCoefficient) { if (prime == null) { throw new NullPointerException("the prime parameter must be " + "non-null"); } if (primeExponent == null) { throw new NullPointerException("the primeExponent parameter " + "must be non-null"); } if (crtCoefficient == null) { throw new NullPointerException("the crtCoefficient parameter " + "must be non-null"); } this.prime = prime; this.primeExponent = primeExponent; this.crtCoefficient = crtCoefficient; } /** * Returns the prime. * * @return the prime. */ public final BigInteger getPrime() { return this.prime; } /** * Returns the prime's exponent. * * @return the primeExponent. */ public final BigInteger getExponent() { return this.primeExponent; } /** * Returns the prime's crtCoefficient. * * @return the crtCoefficient. */ public final BigInteger getCrtCoefficient() { return this.crtCoefficient; } }