J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999 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 | import java.security.spec.AlgorithmParameterSpec; |
| 30 | |
| 31 | /** |
| 32 | * This class specifies the set of parameters used to generate an RSA |
| 33 | * key pair. |
| 34 | * |
| 35 | * @author Jan Luehe |
| 36 | * |
| 37 | * @see java.security.KeyPairGenerator#initialize(java.security.spec.AlgorithmParameterSpec) |
| 38 | * |
| 39 | * @since 1.3 |
| 40 | */ |
| 41 | |
| 42 | public class RSAKeyGenParameterSpec implements AlgorithmParameterSpec { |
| 43 | |
| 44 | private int keysize; |
| 45 | private BigInteger publicExponent; |
| 46 | |
| 47 | /** |
| 48 | * The public-exponent value F0 = 3. |
| 49 | */ |
| 50 | public static final BigInteger F0 = BigInteger.valueOf(3); |
| 51 | |
| 52 | /** |
| 53 | * The public exponent-value F4 = 65537. |
| 54 | */ |
| 55 | public static final BigInteger F4 = BigInteger.valueOf(65537); |
| 56 | |
| 57 | /** |
| 58 | * Constructs a new <code>RSAParameterSpec</code> object from the |
| 59 | * given keysize and public-exponent value. |
| 60 | * |
| 61 | * @param keysize the modulus size (specified in number of bits) |
| 62 | * @param publicExponent the public exponent |
| 63 | */ |
| 64 | public RSAKeyGenParameterSpec(int keysize, BigInteger publicExponent) { |
| 65 | this.keysize = keysize; |
| 66 | this.publicExponent = publicExponent; |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Returns the keysize. |
| 71 | * |
| 72 | * @return the keysize. |
| 73 | */ |
| 74 | public int getKeysize() { |
| 75 | return keysize; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Returns the public-exponent value. |
| 80 | * |
| 81 | * @return the public-exponent value. |
| 82 | */ |
| 83 | public BigInteger getPublicExponent() { |
| 84 | return publicExponent; |
| 85 | } |
| 86 | } |