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 * 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,

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 *

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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

 * <a href="https://tools.ietf.org/rfc/rfc8017.txt">PKCS#1 v2.2</a> standard.

 * The ASN.1 syntax of RSA's OtherPrimeInfo is as follows:

 *

 * <pre>

 * OtherPrimeInfo ::= SEQUENCE {

 *   prime        INTEGER,

 *   exponent     INTEGER,

 *   coefficient  INTEGER

 * }

 *

 * </pre>

 *

 * @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;

    }

}