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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.
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package iaik.pkcs.pkcs11.params;
import java.util.Arrays;
import iaik.pkcs.pkcs11.Util;
import iaik.pkcs.pkcs11.constants.PKCS11Constants;
import sun.security.pkcs11.wrapper.CK_PKCS5_PBKD2_PARAMS;
/**
* This class encapsulates parameters for the Mechanism.PKCS5_PKKD2 mechanism.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants (saltSource == SaltSourceType.SaltSpecified)
* and (saltSourceData <> null)
* and (pseudoRandomFunction == PseudoRandomFunctionType.HMACSha1)
* and (pseudoRandomFunctionData <> null)
*/
@SuppressWarnings("restriction")
// CHECKSTYLE:SKIP
public class PKCS5PBKD2Params implements Params {
/**
* This interface defines the available pseudo-random function types as
* defined by PKCS#11: CKP_PKCS5_PBKD2_HMAC_SHA1.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants
*/
public interface PseudoRandomFunctionType {
/**
* The identifier for HMAC SHA-1 version.
*/
public static final long HMAC_SHA1
= PKCS11Constants.CKP_PKCS5_PBKD2_HMAC_SHA1;
}
/**
* This interface defines the available sources of the salt value as
* defined by PKCS#11: CKZ_SALT_SPECIFIED.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants
*/
public interface SaltSourceType {
/**
* The identifier for specified salt.
*/
public static final long SALT_SPECIFIED
= PKCS11Constants.CKZ_SALT_SPECIFIED;
}
/**
* The source of the salt value.
*/
protected long saltSource;
/**
* The data used as the input for the salt source.
*/
protected byte[] saltSourceData;
/**
* The number of iterations to perform when generating each block of random
* data.
*/
protected long iterations;
/**
* The pseudo-random function (PRF) to used to generate the key.
*/
protected long pseudoRandomFunction;
/**
* The data used as the input for PRF in addition to the salt value.
*/
protected byte[] pseudoRandomFunctionData;
/**
* Create a new PBEDeriveParameters object with the given attributes.
*
* @param saltSource
* The source of the salt value. One of the constants defined in
* the SaltSourceType interface.
* @param saltSourceData
* The data used as the input for the salt source.
* @param iterations
* The number of iterations to perform when generating each block
* of random data.
* @param pseudoRandomFunction
* The pseudo-random function (PRF) to used to generate the key.
* One of the constants defined in the PseudoRandomFunctionType
* interface.
* @param pseudoRandomFunctionData
* The data used as the input for PRF in addition to the salt
* value.
* @preconditions (saltSource == SaltSourceType.SaltSpecified)
* and (saltSourceData <> null)
* and (pseudoRandomFunction
* == PseudoRandomFunctionType.HMACSha1)
* and (pseudoRandomFunctionData <> null)
* @postconditions
*/
public PKCS5PBKD2Params(long saltSource, byte[] saltSourceData,
long iterations, long pseudoRandomFunction,
byte[] pseudoRandomFunctionData) {
if (saltSource != SaltSourceType.SALT_SPECIFIED) {
throw new IllegalArgumentException(
"Illegal value for argument\"saltSource\": "
+ Long.toHexString(saltSource));
}
if (pseudoRandomFunction != PseudoRandomFunctionType.HMAC_SHA1) {
throw new IllegalArgumentException(
"Illegal value for argument\"pseudoRandomFunction\": "
+ Long.toHexString(pseudoRandomFunction));
}
this.saltSource = saltSource;
this.saltSourceData = Util.requireNonNull("saltSourceData",
saltSourceData);
this.iterations = iterations;
this.pseudoRandomFunction = pseudoRandomFunction;
this.pseudoRandomFunctionData = Util.requireNonNull(
"pseudoRandomFunctionData", pseudoRandomFunctionData);
}
/**
* Get this parameters object as an object of the CK_PKCS5_PBKD2_PARAMS
* class.
*
* @return This object as a CK_PKCS5_PBKD2_PARAMS object.
* @preconditions
* @postconditions (result <> null)
*/
@Override
public Object getPKCS11ParamsObject() {
CK_PKCS5_PBKD2_PARAMS params = new CK_PKCS5_PBKD2_PARAMS();
params.saltSource = saltSource;
params.pSaltSourceData = saltSourceData;
params.iterations = iterations;
params.prf = pseudoRandomFunction;
params.pPrfData = pseudoRandomFunctionData;
return params;
}
/**
* Get the source of the salt value.
*
* @return The source of the salt value.
* @preconditions
* @postconditions (result == SaltSourceType.SaltSpecified)
*/
public long getSaltSource() {
return saltSource;
}
/**
* Get the data used as the input for the salt source.
*
* @return data used as the input for the salt source.
* @preconditions
* @postconditions (result <> null)
*/
public byte[] getSaltSourceData() {
return saltSourceData;
}
/**
* Get the number of iterations to perform when generating each block of
* random data.
*
* @return The number of iterations to perform when generating each block of
* random data.
* @preconditions
* @postconditions
*/
public long getIterations() {
return iterations;
}
/**
* Get the pseudo-random function (PRF) to used to generate the key.
*
* @return The pseudo-random function (PRF) to used to generate the key.
* @preconditions
* @postconditions (result == PseudoRandomFunctionType.HMACSha1)
*/
public long getPseudoRandomFunction() {
return pseudoRandomFunction;
}
/**
* Get the data used as the input for PRF in addition to the salt value.
*
* @return The data used as the input for PRF in addition to the salt value.
* @preconditions
* @postconditions (result <> null)
*/
public byte[] getPseudoRandomFunctionData() {
return pseudoRandomFunctionData;
}
/**
* Set the source of the salt value.
*
* @param saltSource
* The source of the salt value. One of the constants defined in
* the SaltSourceType interface
* @preconditions (saltSource == SaltSourceType.SaltSpecified)
* @postconditions
*/
public void setSaltSource(long saltSource) {
if (saltSource != SaltSourceType.SALT_SPECIFIED) {
throw new IllegalArgumentException(
"Illegal value for argument\"saltSource\": "
+ Long.toHexString(saltSource));
}
this.saltSource = saltSource;
}
/**
* Set the data used as the input for the salt source.
*
* @param saltSourceData
* The data used as the input for the salt source.
* @preconditions (saltSourceData <> null)
* @postconditions
*/
public void setSaltSourceData(byte[] saltSourceData) {
this.saltSourceData = Util.requireNonNull("saltSourceData",
saltSourceData);
}
/**
* Set the number of iterations to perform when generating each block of
* random data.
*
* @param iterations
* The number of iterations to perform when generating each block
* of random data.
* @preconditions
* @postconditions
*/
public void setIterations(long iterations) {
this.iterations = iterations;
}
/**
* Set the pseudo-random function (PRF) to used to generate the key.
*
* @param pseudoRandomFunction
* The pseudo-random function (PRF) to used to generate the key.
* One of the constants defined in the PseudoRandomFunctionType
* interface.
* @preconditions (pseudoRandomFunction
* == PseudoRandomFunctionType.HMACSha1)
* @postconditions
*/
public void setPseudoRandomFunction(long pseudoRandomFunction) {
if (pseudoRandomFunction != PseudoRandomFunctionType.HMAC_SHA1) {
throw new IllegalArgumentException(
"Illegal value for argument\"pseudoRandomFunction\": "
+ Long.toHexString(pseudoRandomFunction));
}
this.pseudoRandomFunction = pseudoRandomFunction;
}
/**
* Set the data used as the input for PRF in addition to the salt value.
*
* @param pseudoRandomFunctionData
* The data used as the input for PRF in addition to the salt
* value.
* @preconditions (pseudoRandomFunctionData <> null)
* @postconditions
*/
public void setPseudoRandomFunctionData(byte[] pseudoRandomFunctionData) {
this.pseudoRandomFunctionData = Util.requireNonNull(
"pseudoRandomFunctionData", pseudoRandomFunctionData);
}
/**
* 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(
" Salt Source: ",
((saltSource == SaltSourceType.SALT_SPECIFIED)
? "Salt Specified" : ""),
"\n Salt Source Data (hex): ", Util.toHex(saltSourceData),
"\n Iterations (dec): ", Long.toString(iterations),
"\n Pseudo-Random Function: ",
((pseudoRandomFunction == PseudoRandomFunctionType.HMAC_SHA1)
? "HMAC SHA-1" : ""),
"\n Pseudo-Random Function Data (hex): ",
Util.toHex(pseudoRandomFunctionData));
}
/**
* 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 PKCS5PBKD2Params)) {
return false;
}
PKCS5PBKD2Params other = (PKCS5PBKD2Params) otherObject;
return (this.saltSource == other.saltSource)
&& Arrays.equals(this.saltSourceData, other.saltSourceData)
&& (this.iterations == other.iterations)
&& (this.pseudoRandomFunction == other.pseudoRandomFunction)
&& Arrays.equals(this.pseudoRandomFunctionData,
other.pseudoRandomFunctionData);
}
/**
* 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 ((int) saltSource) ^ Util.hashCode(saltSourceData)
^ ((int) iterations) ^ ((int) pseudoRandomFunction)
^ Util.hashCode(pseudoRandomFunctionData);
}
}