001 /*
002 * Copyright 1998-2003 Sun Microsystems, Inc. All Rights Reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation. Sun designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Sun in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022 * CA 95054 USA or visit www.sun.com if you need additional information or
023 * have any questions.
024 */
025
026 package java.security.spec;
027
028 import java.math.BigInteger;
029
030 /**
031 * This class specifies an RSA private key, as defined in the PKCS#1
032 * standard, using the Chinese Remainder Theorem (CRT) information values for
033 * efficiency.
034 *
035 * @author Jan Luehe
036 *
037 * @version 1.19 07/05/05
038 *
039 * @see java.security.Key
040 * @see java.security.KeyFactory
041 * @see KeySpec
042 * @see PKCS8EncodedKeySpec
043 * @see RSAPrivateKeySpec
044 * @see RSAPublicKeySpec
045 */
046
047 public class RSAPrivateCrtKeySpec extends RSAPrivateKeySpec {
048
049 private final BigInteger publicExponent;
050 private final BigInteger primeP;
051 private final BigInteger primeQ;
052 private final BigInteger primeExponentP;
053 private final BigInteger primeExponentQ;
054 private final BigInteger crtCoefficient;
055
056 /**
057 * Creates a new <code>RSAPrivateCrtKeySpec</code>
058 * given the modulus, publicExponent, privateExponent,
059 * primeP, primeQ, primeExponentP, primeExponentQ, and
060 * crtCoefficient as defined in PKCS#1.
061 *
062 * @param modulus the modulus n
063 * @param publicExponent the public exponent e
064 * @param privateExponent the private exponent d
065 * @param primeP the prime factor p of n
066 * @param primeQ the prime factor q of n
067 * @param primeExponentP this is d mod (p-1)
068 * @param primeExponentQ this is d mod (q-1)
069 * @param crtCoefficient the Chinese Remainder Theorem
070 * coefficient q-1 mod p
071 */
072 public RSAPrivateCrtKeySpec(BigInteger modulus,
073 BigInteger publicExponent, BigInteger privateExponent,
074 BigInteger primeP, BigInteger primeQ,
075 BigInteger primeExponentP, BigInteger primeExponentQ,
076 BigInteger crtCoefficient) {
077 super (modulus, privateExponent);
078 this .publicExponent = publicExponent;
079 this .primeP = primeP;
080 this .primeQ = primeQ;
081 this .primeExponentP = primeExponentP;
082 this .primeExponentQ = primeExponentQ;
083 this .crtCoefficient = crtCoefficient;
084 }
085
086 /**
087 * Returns the public exponent.
088 *
089 * @return the public exponent
090 */
091 public BigInteger getPublicExponent() {
092 return this .publicExponent;
093 }
094
095 /**
096 * Returns the primeP.
097
098 * @return the primeP
099 */
100 public BigInteger getPrimeP() {
101 return this .primeP;
102 }
103
104 /**
105 * Returns the primeQ.
106 *
107 * @return the primeQ
108 */
109 public BigInteger getPrimeQ() {
110 return this .primeQ;
111 }
112
113 /**
114 * Returns the primeExponentP.
115 *
116 * @return the primeExponentP
117 */
118 public BigInteger getPrimeExponentP() {
119 return this .primeExponentP;
120 }
121
122 /**
123 * Returns the primeExponentQ.
124 *
125 * @return the primeExponentQ
126 */
127 public BigInteger getPrimeExponentQ() {
128 return this .primeExponentQ;
129 }
130
131 /**
132 * Returns the crtCoefficient.
133 *
134 * @return the crtCoefficient
135 */
136 public BigInteger getCrtCoefficient() {
137 return this.crtCoefficient;
138 }
139 }
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