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| 1 | /* | ||
| 2 | * Copyright (c) 1999, Oracle and/or its affiliates. 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. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * 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 | } | ||