| /* |
| * 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: |
| * |
| * <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; |
| } |
| } |