Source for java.security.spec.RSAOtherPrimeInfo

   1: /* RSAOtherPrimeInfo.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:  * An in-memory representation of the RSA triplet (prime, exponent, and
  44:  * coefficient) inside a PKCS#1 v2.1 <i>OtherPrimeInfo</i> structure.
  45:  *
  46:  * @since 1.4
  47:  * @see RSAPrivateCrtKeySpec
  48:  * @see java.security.interfaces.RSAMultiPrimePrivateCrtKey
  49:  */
  50: public class RSAOtherPrimeInfo
  51: {
  52:   // Constants and fields
  53:   // --------------------------------------------------------------------------
  54: 
  55:   private BigInteger prime;
  56:   private BigInteger primeExponent;
  57:   private BigInteger crtCoefficient;
  58: 
  59:   // Constructor(s)
  60:   // --------------------------------------------------------------------------
  61: 
  62:   /**
  63:    * Constructs a new <code>RSAOtherPrimeInfo</code> given the PKCS#1 MPIs.
  64:    * 
  65:    * @param prime
  66:    *          the prime factor of n.
  67:    * @param primeExponent
  68:    *          the exponent.
  69:    * @param crtCoefficient
  70:    *          the Chinese Remainder Theorem coefficient.
  71:    * @throws NullPointerException
  72:    *           if any of the parameters is <code>null</code>.
  73:    */
  74:   public RSAOtherPrimeInfo(BigInteger prime, BigInteger primeExponent,
  75:                            BigInteger crtCoefficient)
  76:   {
  77:     super();
  78: 
  79:     if (prime == null)
  80:       throw new NullPointerException("prime");
  81:     if (primeExponent == null)
  82:       throw new NullPointerException("primeExponent");
  83:     if (crtCoefficient == null)
  84:       throw new NullPointerException("crtCoefficient");
  85: 
  86:     this.prime = prime;
  87:     this.primeExponent = primeExponent;
  88:     this.crtCoefficient = crtCoefficient;
  89:   }
  90: 
  91:   // Class methods
  92:   // --------------------------------------------------------------------------
  93: 
  94:   // Instance methods
  95:   // --------------------------------------------------------------------------
  96: 
  97:   /**
  98:    * Returns the prime.
  99:    *
 100:    * @return the prime.
 101:    */
 102:   public final BigInteger getPrime()
 103:   {
 104:     return this.prime;
 105:   }
 106: 
 107:   /**
 108:    * Returns the prime's exponent.
 109:    *
 110:    * @return the primeExponent.
 111:    */
 112:   public final BigInteger getExponent()
 113:   {
 114:     return this.primeExponent;
 115:   }
 116: 
 117:   /**
 118:    * Returns the CRT Coefficient.
 119:    *
 120:    * @return the CRT Coefficient.
 121:    */
 122:   public final BigInteger getCrtCoefficient()
 123:   {
 124:     return this.crtCoefficient;
 125:   }
 126: }