1 /*
2 * Copyright 1998-2003 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.security.spec;
27
28 import java.math.BigInteger;
29
30 /**
31 * This class specifies an RSA private key, as defined in the PKCS#1
32 * standard, using the Chinese Remainder Theorem (CRT) information values for
33 * efficiency.
34 *
35 * @author Jan Luehe
36 *
37 *
38 * @see java.security.Key
39 * @see java.security.KeyFactory
40 * @see KeySpec
41 * @see PKCS8EncodedKeySpec
42 * @see RSAPrivateKeySpec
43 * @see RSAPublicKeySpec
44 */
45
46 public class RSAPrivateCrtKeySpec extends RSAPrivateKeySpec {
47
48 private final BigInteger publicExponent;
49 private final BigInteger primeP;
50 private final BigInteger primeQ;
51 private final BigInteger primeExponentP;
52 private final BigInteger primeExponentQ;
53 private final BigInteger crtCoefficient;
54
55
56
57 /**
58 * Creates a new <code>RSAPrivateCrtKeySpec</code>
59 * given the modulus, publicExponent, privateExponent,
60 * primeP, primeQ, primeExponentP, primeExponentQ, and
61 * crtCoefficient as defined in PKCS#1.
62 *
63 * @param modulus the modulus n
64 * @param publicExponent the public exponent e
65 * @param privateExponent the private exponent d
66 * @param primeP the prime factor p of n
67 * @param primeQ the prime factor q of n
68 * @param primeExponentP this is d mod (p-1)
69 * @param primeExponentQ this is d mod (q-1)
70 * @param crtCoefficient the Chinese Remainder Theorem
71 * coefficient q-1 mod p
72 */
73 public RSAPrivateCrtKeySpec(BigInteger modulus,
74 BigInteger publicExponent,
75 BigInteger privateExponent,
76 BigInteger primeP,
77 BigInteger primeQ,
78 BigInteger primeExponentP,
79 BigInteger primeExponentQ,
80 BigInteger crtCoefficient) {
81 super(modulus, privateExponent);
82 this.publicExponent = publicExponent;
83 this.primeP = primeP;
84 this.primeQ = primeQ;
85 this.primeExponentP = primeExponentP;
86 this.primeExponentQ = primeExponentQ;
87 this.crtCoefficient = crtCoefficient;
88 }
89
90 /**
91 * Returns the public exponent.
92 *
93 * @return the public exponent
94 */
95 public BigInteger getPublicExponent() {
96 return this.publicExponent;
97 }
98
99 /**
100 * Returns the primeP.
101
102 * @return the primeP
103 */
104 public BigInteger getPrimeP() {
105 return this.primeP;
106 }
107
108 /**
109 * Returns the primeQ.
110 *
111 * @return the primeQ
112 */
113 public BigInteger getPrimeQ() {
114 return this.primeQ;
115 }
116
117 /**
118 * Returns the primeExponentP.
119 *
120 * @return the primeExponentP
121 */
122 public BigInteger getPrimeExponentP() {
123 return this.primeExponentP;
124 }
125
126 /**
127 * Returns the primeExponentQ.
128 *
129 * @return the primeExponentQ
130 */
131 public BigInteger getPrimeExponentQ() {
132 return this.primeExponentQ;
133 }
134
135 /**
136 * Returns the crtCoefficient.
137 *
138 * @return the crtCoefficient
139 */
140 public BigInteger getCrtCoefficient() {
141 return this.crtCoefficient;
142 }
143 }
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