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/* * @(#)RSAOtherPrimeInfo.java 1.7 05/11/17 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ 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: * * <pre> * OtherPrimeInfo ::= SEQUENCE { * prime INTEGER, * exponent INTEGER, * coefficient INTEGER * } * * </pre> * * @author Valerie Peng * * @version 1.7 05/11/17 * * @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</code> * 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>, <code>primeExponent</code>, * <code>crtCoefficient</code>, 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; } }