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1: /* DHPublicKeySpec.java -- Wrapper for Diffie-Hellman public keys. 2: Copyright (C) 2004 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package javax.crypto.spec; 40: 41: import java.math.BigInteger; 42: import java.security.spec.KeySpec; 43: 44: /** 45: * A wrapper for Diffie-Hellman public key data. 46: * 47: * @author Casey Marshall (csm@gnu.org) 48: * @since 1.4 49: * @see DHPrivateKeySpec 50: */ 51: public class DHPublicKeySpec implements KeySpec 52: { 53: 54: // Variables. 55: // ------------------------------------------------------------------------ 56: 57: /** The base generator. */ 58: private BigInteger g; 59: 60: /** The prime modulus. */ 61: private BigInteger p; 62: 63: /** The public value. */ 64: private BigInteger y; 65: 66: // Constructors. 67: // ------------------------------------------------------------------------ 68: 69: /** 70: * Create a new Diffie-Hellman public key spec. 71: * 72: * @param y The public value. 73: * @param p The prime modulus. 74: * @param g The base generator. 75: */ 76: public DHPublicKeySpec(BigInteger y, BigInteger p, BigInteger g) 77: { 78: this.y = y; 79: this.p = p; 80: this.g = g; 81: } 82: 83: // Instance methods. 84: // ------------------------------------------------------------------------ 85: 86: /** 87: * Get the base generator. 88: * 89: * @return The base generator. 90: */ 91: public BigInteger getG() 92: { 93: return g; 94: } 95: 96: /** 97: * Get the prime modulus. 98: * 99: * @return The prime modulus. 100: */ 101: public BigInteger getP() 102: { 103: return p; 104: } 105: 106: /** 107: * Get the public value. 108: * 109: * @return The public value. 110: */ 111: public BigInteger getY() 112: { 113: return y; 114: } 115: }

GNU Classpath (0.95) |