iaik.pkcs.pkcs11.parameters.RSAPkcsPssParameters Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of sunpkcs11-wrapper Show documentation
Show all versions of sunpkcs11-wrapper Show documentation
PKCS#11 wrapper based on sunpkcs11
The newest version!
// 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.Mechanism;
import iaik.pkcs.pkcs11.Util;
import iaik.pkcs.pkcs11.wrapper.Functions;
import sun.security.pkcs11.wrapper.CK_RSA_PKCS_PSS_PARAMS;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
/**
* This class encapsulates parameters for the Mechanism.RSA_PKCS_PSS.
*
* @author Karl Scheibelhofer
* @version 1.0
*/
// CHECKSTYLE:SKIP
public class RSAPkcsPssParameters extends RSAPkcsParameters {
private static final String CLASS_CK_PARAMS =
"sun.security.pkcs11.wrapper.CK_RSA_PKCS_PSS_PARAMS";
private static final Constructor constructor;
private static final Constructor constructorNoArgs;
private static final Field hashAlgField;
private static final Field mgfField;
private static final Field sLenField;
/**
* The length of the salt value in octets.
*/
protected long saltLength;
static {
Class clazz = CK_RSA_PKCS_PSS_PARAMS.class;
constructor = Util.getConstructor(clazz,
String.class, String.class, String.class, int.class);
if (constructor != null) {
constructorNoArgs = null;
} else {
constructorNoArgs = Util.getConstructor(clazz);
}
if (constructorNoArgs != null) {
hashAlgField = Util.getField(clazz, "hashAlg");
mgfField = Util.getField(clazz, "mgf");
sLenField = Util.getField(clazz, "sLen");
} else {
hashAlgField = null;
mgfField = null;
sLenField = null;
}
}
@Deprecated
public RSAPkcsPssParameters(Mechanism hashAlg, long mgf, long saltLength) {
this(hashAlg.getMechanismCode(), mgf, saltLength);
}
/**
* Create a new RSAPkcsOaepParameters object with the given attributes.
*
* @param hashAlg
* The message digest algorithm used to calculate the digest of the
* encoding parameter.
* @param mgf
* The mask to apply to the encoded block. One of the constants
* defined in the MessageGenerationFunctionType interface.
* @param saltLength
* The length of the salt value in octets.
*/
public RSAPkcsPssParameters(long hashAlg, long mgf, long saltLength) {
super(hashAlg, mgf);
if (constructor == null && constructorNoArgs == null) {
throw new IllegalStateException(
"could not find constructor for class " + CLASS_CK_PARAMS);
}
this.saltLength = saltLength;
}
/**
* Get this parameters object as an object of the CK_RSA_PKCS_PSS_PARAMS
* class.
*
* @return This object as a CK_RSA_PKCS_PSS_PARAMS object.
*/
@Override
public CK_RSA_PKCS_PSS_PARAMS getPKCS11ParamsObject() {
if (constructorNoArgs != null) {
try {
CK_RSA_PKCS_PSS_PARAMS ret =
(CK_RSA_PKCS_PSS_PARAMS) constructorNoArgs.newInstance();
hashAlgField.set(ret, hashAlg);
mgfField.set(ret, mgf);
sLenField.set(ret, saltLength);
return ret;
} catch (InstantiationException | IllegalAccessException
| IllegalArgumentException | InvocationTargetException ex) {
throw new IllegalStateException(
"Could not create new instance of " + CLASS_CK_PARAMS, ex);
}
} else {
String hashAlgName = Functions.getHashAlgName(hashAlg);
String mgfHashAlgName = Functions.getHashAlgName(mgf2HashAlgMap.get(mgf));
try {
return (CK_RSA_PKCS_PSS_PARAMS) constructor.newInstance(
hashAlgName, "MGF1", mgfHashAlgName, (int) saltLength);
} catch (InstantiationException | IllegalAccessException
| IllegalArgumentException | InvocationTargetException ex) {
throw new IllegalStateException(
"Could not create new instance of " + CLASS_CK_PARAMS, ex);
}
}
}
/**
* Get the length of the salt value in octets.
*
* @return The length of the salt value in octets.
*/
public long getSaltLength() {
return saltLength;
}
/**
* Set the length of the salt value in octets.
*
* @param saltLength
* The length of the salt value in octets.
*/
public void setSaltLength(long saltLength) {
this.saltLength = saltLength;
}
/**
* 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() {
return Util.concat(super.toString(),
"\n Salt Length (octets, dec): ", Long.toString(saltLength));
}
/**
* 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.
*/
@Override
public boolean equals(Object otherObject) {
if (this == otherObject) {
return true;
} else if (!(otherObject instanceof RSAPkcsPssParameters)) {
return false;
}
RSAPkcsPssParameters other = (RSAPkcsPssParameters) otherObject;
return super.equals(other) && (this.saltLength == other.saltLength);
}
/**
* 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.
*/
@Override
public int hashCode() {
return super.hashCode() ^ ((int) saltLength);
}
}