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1: /* PSSParameterSpec.java -- 2: Copyright (C) 2003, 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: package java.security.spec; 39: 40: import java.math.BigInteger; 41: 42: /** 43: * This class specifies an RSA multi-prime private key, as defined in the 44: * PKCS#1 v2.1, using the <i>Chinese Remainder Theorem</i> (CRT) information 45: * values for efficiency. 46: * 47: * @since 1.4 48: * @see java.security.Key 49: * @see java.security.KeyFactory 50: * @see KeySpec 51: * @see PKCS8EncodedKeySpec 52: * @see RSAPrivateKeySpec 53: * @see RSAPublicKeySpec 54: * @see RSAOtherPrimeInfo 55: */ 56: public class RSAMultiPrimePrivateCrtKeySpec extends RSAPrivateKeySpec 57: { 58: // Constants and fields 59: // -------------------------------------------------------------------------- 60: 61: private BigInteger publicExponent; 62: private BigInteger primeP; 63: private BigInteger primeQ; 64: private BigInteger primeExponentP; 65: private BigInteger primeExponentQ; 66: private BigInteger crtCoefficient; 67: private RSAOtherPrimeInfo[] otherPrimeInfo; 68: 69: // Constructor(s) 70: // -------------------------------------------------------------------------- 71: 72: /** 73: * <p>Creates a new <code>RSAMultiPrimePrivateCrtKeySpec</code> given the 74: * modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, 75: * primeExponentQ, crtCoefficient, and otherPrimeInfo as defined in PKCS#1 76: * v2.1.</p> 77: * 78: * <p>Note that <code>otherPrimeInfo</code> is cloned when constructing this 79: * object.</p> 80: * 81: * @param modulus the modulus n. 82: * @param publicExponent the public exponent e. 83: * @param privateExponent the private exponent d. 84: * @param primeP the prime factor p of n. 85: * @param primeQ the prime factor q of n. 86: * @param primeExponentP this is d mod (p-1). 87: * @param primeExponentQ this is d mod (q-1). 88: * @param crtCoefficient the Chinese Remainder Theorem coefficient q-1 mod p. 89: * @param otherPrimeInfo triplets of the rest of primes, <code>null</code> 90: * can be specified if there are only two prime factors (p and q). 91: * @throws NullPointerException if any of the parameters, i.e. modulus, 92: * publicExponent, privateExponent, primeP, primeQ, primeExponentP, 93: * primeExponentQ, crtCoefficient, is <code>null</code>. 94: * @throws IllegalArgumentException if an empty, i.e. 0-length, 95: * otherPrimeInfo is specified. 96: */ 97: public RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus, 98: BigInteger publicExponent, 99: BigInteger privateExponent, 100: BigInteger primeP, 101: BigInteger primeQ, 102: BigInteger primeExponentP, 103: BigInteger primeExponentQ, 104: BigInteger crtCoefficient, 105: RSAOtherPrimeInfo[] otherPrimeInfo) 106: { 107: super(modulus, privateExponent); 108: 109: if (modulus == null) 110: throw new NullPointerException("modulus"); 111: if (publicExponent == null) 112: throw new NullPointerException("publicExponent"); 113: if (privateExponent == null) 114: throw new NullPointerException("privateExponent"); 115: if (primeP == null) 116: throw new NullPointerException("primeP"); 117: if (primeQ == null) 118: throw new NullPointerException("primeQ"); 119: if (primeExponentP == null) 120: throw new NullPointerException("primeExponentP"); 121: if (primeExponentQ == null) 122: throw new NullPointerException("primeExponentQ"); 123: if (crtCoefficient == null) 124: throw new NullPointerException("crtCoefficient"); 125: if (otherPrimeInfo != null) 126: if (otherPrimeInfo.length == 0) 127: throw new IllegalArgumentException(); 128: else 129: this.otherPrimeInfo = (RSAOtherPrimeInfo[]) otherPrimeInfo.clone(); 130: 131: this.publicExponent = publicExponent; 132: this.primeP = primeP; 133: this.primeQ = primeQ; 134: this.primeExponentP = primeExponentP; 135: this.primeExponentQ = primeExponentQ; 136: this.crtCoefficient = crtCoefficient; 137: } 138: 139: // Class methods 140: // -------------------------------------------------------------------------- 141: 142: // Instance methods 143: // -------------------------------------------------------------------------- 144: 145: /** 146: * Returns the public exponent. 147: * 148: * @return the public exponent. 149: */ 150: public BigInteger getPublicExponent() 151: { 152: return this.publicExponent; 153: } 154: 155: /** 156: * Returns the primeP. 157: * 158: * @return the primeP. 159: */ 160: public BigInteger getPrimeP() 161: { 162: return this.primeP; 163: } 164: 165: /** 166: * Returns the primeQ. 167: * 168: * @return the primeQ. 169: */ 170: public BigInteger getPrimeQ() 171: { 172: return this.primeQ; 173: } 174: 175: /** 176: * Returns the primeExponentP. 177: * 178: * @return the primeExponentP. 179: */ 180: public BigInteger getPrimeExponentP() 181: { 182: return this.primeExponentP; 183: } 184: 185: /** 186: * Returns the primeExponentQ. 187: * 188: * @return the primeExponentQ. 189: */ 190: public BigInteger getPrimeExponentQ() 191: { 192: return this.primeExponentQ; 193: } 194: 195: /** 196: * Returns the crtCoefficient. 197: * 198: * @return the crtCoefficient. 199: */ 200: public BigInteger getCrtCoefficient() 201: { 202: return this.crtCoefficient; 203: } 204: 205: /** 206: * Returns a copy of the otherPrimeInfo or <code>null</code> if there are 207: * only two prime factors (p and q). 208: * 209: * @return the otherPrimeInfo. 210: */ 211: public RSAOtherPrimeInfo[] getOtherPrimeInfo() 212: { 213: return this.otherPrimeInfo == null 214: ? null 215: : (RSAOtherPrimeInfo[]) this.otherPrimeInfo.clone(); 216: } 217: }
GNU Classpath (0.20) |