| /* PSSParameterSpec.java -- |
| Copyright (C) 2003, Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package java.security.spec; |
| |
| import java.math.BigInteger; |
| |
| /** |
| * This class specifies an RSA multi-prime private key, as defined in the |
| * PKCS#1 v2.1, using the <i>Chinese Remainder Theorem</i> (CRT) information |
| * values for efficiency. |
| * |
| * @since 1.4 |
| * @see java.security.Key |
| * @see java.security.KeyFactory |
| * @see KeySpec |
| * @see PKCS8EncodedKeySpec |
| * @see RSAPrivateKeySpec |
| * @see RSAPublicKeySpec |
| * @see RSAOtherPrimeInfo |
| */ |
| public class RSAMultiPrimePrivateCrtKeySpec extends RSAPrivateKeySpec |
| { |
| // Constants and fields |
| // -------------------------------------------------------------------------- |
| |
| private BigInteger publicExponent; |
| private BigInteger primeP; |
| private BigInteger primeQ; |
| private BigInteger primeExponentP; |
| private BigInteger primeExponentQ; |
| private BigInteger crtCoefficient; |
| private RSAOtherPrimeInfo[] otherPrimeInfo; |
| |
| // Constructor(s) |
| // -------------------------------------------------------------------------- |
| |
| /** |
| * <p>Creates a new <code>RSAMultiPrimePrivateCrtKeySpec</code> given the |
| * modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, |
| * primeExponentQ, crtCoefficient, and otherPrimeInfo as defined in PKCS#1 |
| * v2.1.</p> |
| * |
| * <p>Note that <code>otherPrimeInfo</code> is cloned when constructing this |
| * object.</p> |
| * |
| * @param modulus the modulus n. |
| * @param publicExponent the public exponent e. |
| * @param privateExponent the private exponent d. |
| * @param primeP the prime factor p of n. |
| * @param primeQ the prime factor q of n. |
| * @param primeExponentP this is d mod (p-1). |
| * @param primeExponentQ this is d mod (q-1). |
| * @param crtCoefficient the Chinese Remainder Theorem coefficient q-1 mod p. |
| * @param otherPrimeInfo triplets of the rest of primes, <code>null</code> |
| * can be specified if there are only two prime factors (p and q). |
| * @throws NullPointerException if any of the parameters, i.e. modulus, |
| * publicExponent, privateExponent, primeP, primeQ, primeExponentP, |
| * primeExponentQ, crtCoefficient, is <code>null</code>. |
| * @throws IllegalArgumentException if an empty, i.e. 0-length, |
| * otherPrimeInfo is specified. |
| */ |
| public RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus, |
| BigInteger publicExponent, |
| BigInteger privateExponent, |
| BigInteger primeP, |
| BigInteger primeQ, |
| BigInteger primeExponentP, |
| BigInteger primeExponentQ, |
| BigInteger crtCoefficient, |
| RSAOtherPrimeInfo[] otherPrimeInfo) |
| { |
| super(modulus, privateExponent); |
| |
| if (modulus == null) |
| throw new NullPointerException("modulus"); |
| if (publicExponent == null) |
| throw new NullPointerException("publicExponent"); |
| if (privateExponent == null) |
| throw new NullPointerException("privateExponent"); |
| if (primeP == null) |
| throw new NullPointerException("primeP"); |
| if (primeQ == null) |
| throw new NullPointerException("primeQ"); |
| if (primeExponentP == null) |
| throw new NullPointerException("primeExponentP"); |
| if (primeExponentQ == null) |
| throw new NullPointerException("primeExponentQ"); |
| if (crtCoefficient == null) |
| throw new NullPointerException("crtCoefficient"); |
| if (otherPrimeInfo != null) |
| if (otherPrimeInfo.length == 0) |
| throw new IllegalArgumentException(); |
| else |
| this.otherPrimeInfo = (RSAOtherPrimeInfo[]) otherPrimeInfo.clone(); |
| |
| this.publicExponent = publicExponent; |
| this.primeP = primeP; |
| this.primeQ = primeQ; |
| this.primeExponentP = primeExponentP; |
| this.primeExponentQ = primeExponentQ; |
| this.crtCoefficient = crtCoefficient; |
| } |
| |
| // Class methods |
| // -------------------------------------------------------------------------- |
| |
| // Instance methods |
| // -------------------------------------------------------------------------- |
| |
| /** |
| * Returns the public exponent. |
| * |
| * @return the public exponent. |
| */ |
| public BigInteger getPublicExponent() |
| { |
| return this.publicExponent; |
| } |
| |
| /** |
| * Returns the primeP. |
| * |
| * @return the primeP. |
| */ |
| public BigInteger getPrimeP() |
| { |
| return this.primeP; |
| } |
| |
| /** |
| * Returns the primeQ. |
| * |
| * @return the primeQ. |
| */ |
| public BigInteger getPrimeQ() |
| { |
| return this.primeQ; |
| } |
| |
| /** |
| * Returns the primeExponentP. |
| * |
| * @return the primeExponentP. |
| */ |
| public BigInteger getPrimeExponentP() |
| { |
| return this.primeExponentP; |
| } |
| |
| /** |
| * Returns the primeExponentQ. |
| * |
| * @return the primeExponentQ. |
| */ |
| public BigInteger getPrimeExponentQ() |
| { |
| return this.primeExponentQ; |
| } |
| |
| /** |
| * Returns the crtCoefficient. |
| * |
| * @return the crtCoefficient. |
| */ |
| public BigInteger getCrtCoefficient() |
| { |
| return this.crtCoefficient; |
| } |
| |
| /** |
| * Returns a copy of the otherPrimeInfo or <code>null</code> if there are |
| * only two prime factors (p and q). |
| * |
| * @return the otherPrimeInfo. |
| */ |
| public RSAOtherPrimeInfo[] getOtherPrimeInfo() |
| { |
| return this.otherPrimeInfo == null |
| ? null |
| : (RSAOtherPrimeInfo[]) this.otherPrimeInfo.clone(); |
| } |
| } |