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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.parameters;
import iaik.pkcs.pkcs11.Util;
import iaik.pkcs.pkcs11.wrapper.Constants;
import iaik.pkcs.pkcs11.wrapper.Functions;
import sun.security.pkcs11.wrapper.CK_ECDH2_DERIVE_PARAMS;
/**
* This abstract class encapsulates parameters for the DH mechanism
* Mechanism.ECMQV_DERIVE.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants (privateData <> null)
* and (publicData2 <> null)
*/
@SuppressWarnings("restriction")
public class EcDH2KeyDerivationParameters extends EcDH1KeyDerivationParameters {
/**
* The length in bytes of the second EC private key.
*/
protected long privateDataLength_;
/**
* The key for the second EC private key value.
*/
protected iaik.pkcs.pkcs11.objects.Object privateData_;
/**
* The other party's second EC public key value.
*/
protected byte[] publicData2_;
/**
* Create a new EcDH1KeyDerivationParameters object with the given
* attributes.
*
* @param keyDerivationFunction
* The key derivation function used on the shared secret value.
* One of the values defined in KeyDerivationFunctionType.
* @param sharedData
* The data shared between the two parties.
* @param publicData
* The other partie's public key value.
* @param privateDataLength
* The length in bytes of the second EC private key.
* @param privateData
* The key for the second EC private key value.
* @param publicData2
* The other party's second EC public key value.
* @preconditions ((keyDerivationFunction == KeyDerivationFunctionType.NULL)
* or (keyDerivationFunction
* == KeyDerivationFunctionType.SHA1_KDF)
* or (keyDerivationFunction
* == KeyDerivationFunctionType.SHA1_KDF_ASN1)
* or (keyDerivationFunction
* == KeyDerivationFunctionType.SHA1_KDF_CONCATENATE))
* and (publicData <> null)
* and (privateData <> null)
* and (publicData2 <> null)
* @postconditions
*/
public EcDH2KeyDerivationParameters(long keyDerivationFunction,
byte[] sharedData,
byte[] publicData,
long privateDataLength,
iaik.pkcs.pkcs11.objects.Object privateData,
byte[] publicData2) {
super(keyDerivationFunction, sharedData, publicData);
privateDataLength_ = privateDataLength;
privateData_ = Util.requireNonNull("privateData", privateData);
publicData2_ = Util.requireNonNull("publicData2", publicData2);
}
/**
* Create a (deep) clone of this object.
*
* @return A clone of this object.
* @preconditions
* @postconditions (result <> null)
* and (result instanceof EcDH2KeyDerivationParameters)
* and (result.equals(this))
*/
@Override
public java.lang.Object clone() {
EcDH2KeyDerivationParameters clone
= (EcDH2KeyDerivationParameters) super.clone();
clone.privateData_ = (iaik.pkcs.pkcs11.objects.Object)
this.privateData_.clone();
clone.publicData2_ = (byte[]) this.publicData2_.clone();
return clone;
}
/**
* Get this parameters object as an object of the CK_ECDH2_DERIVE_PARAMS
* class.
*
* @return This object as a CK_ECDH2_DERIVE_PARAMS object.
* @preconditions
* @postconditions (result <> null)
*/
@Override
public Object getPKCS11ParamsObject() {
CK_ECDH2_DERIVE_PARAMS params = new CK_ECDH2_DERIVE_PARAMS();
params.kdf = keyDerivationFunction_;
params.pSharedData = sharedData_;
params.pPublicData = publicData_;
params.ulPrivateDataLen = privateDataLength_;
params.hPrivateData = privateData_.getObjectHandle();
params.pPublicData2 = publicData2_;
return params;
}
/**
* Get the key for the second EC private key value.
*
* @return The key for the second EC private key value.
* @preconditions
* @postconditions (result <> null)
*/
public iaik.pkcs.pkcs11.objects.Object getPrivateData() {
return privateData_;
}
/**
* Get the length in bytes of the second EC private key.
*
* @return The length in bytes of the second EC private key.
* @preconditions
* @postconditions
*/
public long getPrivateDataLength() {
return privateDataLength_;
}
/**
* Get the other party's second EC public key value.
*
* @return The other party's second EC public key value.
* @preconditions
* @postconditions (result <> null)
*/
public byte[] getPublicData2() {
return publicData2_;
}
/**
* Set the key for the second EC private key value.
*
* @param privateData
* The key for the second EC private key value.
* @preconditions (privateData <> null)
* @postconditions
*/
public void setPrivateData(iaik.pkcs.pkcs11.objects.Object privateData) {
privateData_ = Util.requireNonNull("privateData", privateData);
}
/**
* Set the length in bytes of the second EC private key.
*
* @param privateDataLength
* The length in bytes of the second EC private key.
* @preconditions
* @postconditions
*/
public void setPrivateDataLength(long privateDataLength) {
privateDataLength_ = privateDataLength;
}
/**
* Set the other party's second EC public key value.
*
* @param publicData2
* The other party's second EC public key value.
* @preconditions (publicData2 <> null)
* @postconditions
*/
public void setPublicData2(byte[] publicData2) {
publicData2_ = Util.requireNonNull("publicData2", publicData2);
}
/**
* Returns the string representation of this object. Do not parse data from
* this string, it is for debugging only.
*
* @return A string representation of this object.
*/
@Override
public String toString() {
StringBuilder buffer = new StringBuilder();
buffer.append(super.toString());
buffer.append(Constants.NEWLINE_INDENT);
buffer.append("Private Data Length (dec): ");
buffer.append(privateDataLength_);
buffer.append(Constants.NEWLINE_INDENT);
buffer.append("Private Data: ");
buffer.append(privateData_);
buffer.append(Constants.NEWLINE_INDENT);
buffer.append("Public Data 2: ");
buffer.append(Functions.toHexString(publicData2_));
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 EcDH2KeyDerivationParameters)) {
return false;
}
EcDH2KeyDerivationParameters other
= (EcDH2KeyDerivationParameters) otherObject;
return super.equals(other)
&& (this.privateDataLength_ == other.privateDataLength_)
&& this.privateData_.equals(other.privateData_)
&& Functions.equals(this.publicData2_, other.publicData2_);
}
/**
* 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 super.hashCode() ^ ((int) privateDataLength_)
^ privateData_.hashCode() ^ Functions.hashCode(publicData2_);
}
}
