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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>
*/
public class RSAOtherPrimeInfo
extends Object
{
private BigInteger prime;
private BigInteger primeExponent;
private BigInteger crtCoefficient;
/**
* Creates a new 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.
* @throws NullPointerException - if any of the parameters, i.e. prime,
* primeExponent, crtCoefficient, is null.
*/
public RSAOtherPrimeInfo(
BigInteger prime,
BigInteger primeExponent,
BigInteger crtCoefficient)
{
if ( prime == null || primeExponent == null || crtCoefficient == null )
{
throw new NullPointerException("Null parameter");
}
this.prime = prime;
this.primeExponent = primeExponent;
this.crtCoefficient = crtCoefficient;
}
/**
* Returns the prime.
*
* @returns the prime.
*/
public final BigInteger getPrime()
{
return prime;
}
/**
* Returns the prime's exponent.
*
* @returns the primeExponent.
*/
public final BigInteger getExponent()
{
return primeExponent;
}
/**
* Returns the prime's crtCoefficient.
*
* @returns the crtCoefficient.
*/
public final BigInteger getCrtCoefficient()
{
return crtCoefficient;
}
}
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