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PKCS#11 wrapper based on sunpkcs11
// 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 java.util.Arrays;
import java.util.Date;
import iaik.pkcs.pkcs11.Util;
import sun.security.pkcs11.wrapper.CK_DATE;
/**
* Objects of this class represent a date attribute of an PKCS#11 object
* as specified by PKCS#11.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants
*/
@SuppressWarnings("restriction")
public class DateAttribute extends Attribute {
/**
* Constructor taking the PKCS#11 type of the attribute.
*
* @param type
* The PKCS#11 type of this attribute; e.g.
* PKCS11Constants.CKA_START_DATE.
* @preconditions (type <> null)
* @postconditions
*/
public DateAttribute(Long type) {
super(type);
}
/**
* Set the date value of this attribute. Null, is also valid.
* A call to this method sets the present flag to true.
*
* @param value
* The date value to set. May be null.
* @preconditions
* @postconditions
*/
public void setDateValue(Date value) {
ckAttribute.pValue = Util.convertToCkDate(value);
present = true;
}
/**
* Get the date value of this attribute. Null, is also possible.
*
* @return The date value of this attribute or null.
* @preconditions
* @postconditions
*/
public Date getDateValue() {
return Util.convertToDate((CK_DATE) ckAttribute.pValue);
}
/**
* 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(Object otherObject) {
if (this == otherObject) {
return true;
} else if (!(otherObject instanceof DateAttribute)) {
return false;
}
DateAttribute other = (DateAttribute) otherObject;
if (!this.present && !other.present) {
return true;
} else if (!(this.present && other.present)) {
return false;
} else if (this.sensitive != other.sensitive) {
return false;
} else if (this.ckAttribute.type != other.ckAttribute.type) {
return false;
}
return equals((CK_DATE) this.ckAttribute.pValue,
(CK_DATE) 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
*/
@Override
public int hashCode() {
if ((ckAttribute.pValue == null)) {
return (int) ckAttribute.type;
}
return ((int) ckAttribute.type) ^ hashCode((CK_DATE) ckAttribute.pValue);
}
@Override
public void setValue(Object value) {
setDateValue((Date) value);
}
/**
* Check the given dates for equality. This method considers both dates as
* equal, if both are null or both contain exactly the same
* char values.
*
* @param date1
* The first date.
* @param date2
* The second date.
* @return True, if both dates are null or both contain the
* same char values. False, otherwise.
* @preconditions
* @postconditions
*/
private static boolean equals(CK_DATE date1, CK_DATE date2) {
boolean equal = false;
if (date1 == date2) {
equal = true;
} else if ((date1 != null) && (date2 != null)) {
equal = Arrays.equals(date1.year, date2.year)
&& Arrays.equals(date1.month, date2.month)
&& Arrays.equals(date1.day, date2.day);
} else {
equal = false;
}
return equal;
}
/**
* Calculate a hash code for the given date object.
*
* @param date
* The date object.
* @return A hash code for the given date.
* @preconditions
* @postconditions
*/
private static int hashCode(CK_DATE date) {
int hash = 0;
if (date != null) {
if (date.year.length == 4) {
hash ^= (0xFFFF & date.year[0]) << 16;
hash ^= 0xFFFF & date.year[1];
hash ^= (0xFFFF & date.year[2]) << 16;
hash ^= 0xFFFF & date.year[3];
}
if (date.month.length == 2) {
hash ^= (0xFFFF & date.month[0]) << 16;
hash ^= 0xFFFF & date.month[1];
}
if (date.day.length == 2) {
hash ^= (0xFFFF & date.day[0]) << 16;
hash ^= 0xFFFF & date.day[1];
}
}
return hash;
}
}