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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.wrapper.Functions;
/**
* Objects of this class represent a byte-array attribute of a PKCS#11 object
* as specified by PKCS#11.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants
*/
public class ByteArrayAttribute extends Attribute {
/**
* Default constructor - only for internal use in
* AttributeArrayAttribute.getValueString().
*/
ByteArrayAttribute() {
super();
}
/**
* Constructor taking the PKCS#11 type of the attribute.
*
* @param type
* The PKCS#11 type of this attribute; e.g.
* PKCS11Constants.CKA_VALUE.
* @preconditions (type <> null)
* @postconditions
*/
public ByteArrayAttribute(Long type) {
super(type);
}
/**
* Set the byte-array value of this attribute. Null, is also valid.
* A call to this method sets the present flag to true.
*
* @param value
* The byte-array value to set. May be null.
* @preconditions
* @postconditions
*/
@SuppressWarnings("restriction")
public void setByteArrayValue(byte[] value) {
ckAttribute_.pValue = value;
present_ = true;
}
/**
* Get the byte-array value of this attribute. Null, is also possible.
*
* @return The byte-array value of this attribute or null.
* @preconditions
* @postconditions
*/
@SuppressWarnings("restriction")
public byte[] getByteArrayValue() {
return (byte[]) ckAttribute_.pValue;
}
/**
* Get a string representation of the value of this attribute.
*
* @return A string representation of the value of this attribute.
* @preconditions
* @postconditions (result <> null)
*/
@SuppressWarnings("restriction")
@Override
protected String getValueString() {
String valueString;
if ((ckAttribute_ != null) && (ckAttribute_.pValue != null)) {
valueString = Functions.toHexString((byte[]) ckAttribute_.pValue);
} else {
valueString = "";
}
return valueString;
}
/**
* 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
*/
@SuppressWarnings("restriction")
@Override
public boolean equals(java.lang.Object otherObject) {
if (this == otherObject) {
return true;
}
if (!(otherObject instanceof ByteArrayAttribute)) {
return false;
}
ByteArrayAttribute other = (ByteArrayAttribute) otherObject;
if (!this.present_ && !other.present_) {
return true;
}
if (!(this.present_ && other.present_)) {
return false;
}
if (this.sensitive_ != other.sensitive_) {
return false;
}
/* In the original implementation, the type will not be compared.
if (this.ckAttribute_.type != other.ckAttribute_.type) {
return false;
}*/
return Functions.equals((byte[]) this.ckAttribute_.pValue,
(byte[]) other.ckAttribute_.pValue);
}
/**
* 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
*/
@SuppressWarnings("restriction")
@Override
public int hashCode() {
return (ckAttribute_.pValue != null) ? Functions
.hashCode((byte[]) ckAttribute_.pValue) : 0;
}
@Override
public void setValue(java.lang.Object value)
throws UnsupportedOperationException {
setByteArrayValue((byte[]) value);
}
}
