/*
* @(#)RSAOtherPrimeInfo.java 1.6 03/12/19
*
* Copyright 2004 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 1.6 03/12/19
*
* @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;
}
}
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