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// Copyright (c) 2002 Graz University of Technology. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. The end-user documentation included with the redistribution, if any, must
// include the following acknowledgment:
//
// "This product includes software developed by IAIK of Graz University of
// Technology."
//
// Alternately, this acknowledgment may appear in the software itself, if and
// wherever such third-party acknowledgments normally appear.
//
// 4. The names "Graz University of Technology" and "IAIK of Graz University of
// Technology" must not be used to endorse or promote products derived from
// this software without prior written permission.
//
// 5. Products derived from this software may not be called "IAIK PKCS Wrapper",
// nor may "IAIK" appear in their name, without prior written permission of
// Graz University of Technology.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
// OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package iaik.pkcs.pkcs11.objects;
import iaik.pkcs.pkcs11.TokenRuntimeException;
import iaik.pkcs.pkcs11.Util;
import iaik.pkcs.pkcs11.wrapper.Constants;
/**
* This class does not correspond to any PKCS#11 object. It is only a pair of
* a private key and a public key.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants (publicKey_ <> null)
* and (privateKey_ <> null)
*/
public class KeyPair implements Cloneable {
/**
* The public key of this key-pair.
*/
protected PublicKey publicKey_;
/**
* The private key of this key-pair.
*/
protected PrivateKey privateKey_;
/**
* Constructor that takes a public and a private key. None can be null.
*
* @param publicKey
* The public key of the key-pair.
* @param privateKey
* The private key of the key-pair.
* @preconditions (publicKey <> null)
* and (privateKey <> null)
* @postconditions
*/
public KeyPair(PublicKey publicKey, PrivateKey privateKey) {
publicKey_ = Util.requireNonNull("publicKey", publicKey);
privateKey_ = Util.requireNonNull("privateKey", privateKey);
}
/**
* Create a (deep) clone of this object.
*
* @return A clone of this object.
* @preconditions
* @postconditions (result <> null)
* and (result instanceof KeyPair)
* and (result.equals(this))
*/
@Override
public java.lang.Object clone() {
KeyPair clone;
try {
clone = (KeyPair) super.clone();
clone.privateKey_ = (PrivateKey) this.privateKey_.clone();
clone.publicKey_ = (PublicKey) this.publicKey_.clone();
} catch (CloneNotSupportedException ex) {
// this must not happen, because this class is cloneable
throw new TokenRuntimeException(
"An unexpected clone exception occurred.", ex);
}
return clone;
}
/**
* Get the public key part of this key-pair.
*
* @return The public key part of this key-pair.
* @preconditions
* @postconditions (result <> null)
*/
public PublicKey getPublicKey() {
return publicKey_;
}
/**
* Set the public key part of this key-pair.
*
* @param publicKey
* The public key part of this key-pair.
* @preconditions (publicKey <> null)
* @postconditions
*/
public void setPublicKey(PublicKey publicKey) {
Util.requireNonNull("publicKey", publicKey);
publicKey_ = publicKey;
}
/**
* Get the private key part of this key-pair.
*
* @return The private key part of this key-pair.
* @preconditions
* @postconditions (result <> null)
*/
public PrivateKey getPrivateKey() {
return privateKey_;
}
/**
* Set the private key part of this key-pair.
*
* @param privateKey
* he private key part of this key-pair.
* @preconditions (privateKey <> null)
* @postconditions
*/
public void setPrivateKey(PrivateKey privateKey) {
Util.requireNonNull("privateKey", privateKey);
privateKey_ = privateKey;
}
/**
* This method returns a string representation of the current object. The
* output is only for debugging purposes and should not be used for other
* purposes.
*
* @return A string presentation of this object for debugging output.
* @preconditions
* @postconditions (result <> null)
*/
@Override
public String toString() {
StringBuilder buffer = new StringBuilder(128);
buffer.append(Constants.INDENT);
buffer.append(publicKey_);
buffer.append(Constants.NEWLINE_INDENT);
buffer.append(privateKey_);
return buffer.toString();
}
/**
* Compares all member variables of this object with the other object.
* Returns only true, if all are equal in both objects.
*
* @param otherObject
* The other object to compare to.
* @return True, if other is an instance of this class and all member
* variables of both objects are equal. False, otherwise.
* @preconditions
* @postconditions
*/
@Override
public boolean equals(java.lang.Object otherObject) {
if (this == otherObject) {
return true;
}
if (!(otherObject instanceof KeyPair)) {
return false;
}
KeyPair other = (KeyPair) otherObject;
return this.publicKey_.equals(other.publicKey_)
&& this.privateKey_.equals(other.privateKey_);
}
/**
* The overriding of this method should ensure that the objects of this
* class work correctly in a hashtable.
*
* @return The hash code of this object.
* @preconditions
* @postconditions
*/
@Override
public int hashCode() {
return publicKey_.hashCode() ^ privateKey_.hashCode();
}
}
