/*
 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
 */

/* 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 sun.security.pkcs11.wrapper;

import java.io.File;
import java.io.IOException;
import java.util.*;

import java.security.AccessController;
import java.security.PrivilegedAction;

import static sun.security.pkcs11.wrapper.PKCS11Constants.*;

This is the default implementation of the PKCS11 interface. IT connects to
the pkcs11wrapper.dll file, which is the native part of this library.
The strange and awkward looking initialization was chosen to avoid calling
loadLibrary from a static initialization block, because this would complicate
the use in applets.
Author:
Karl Scheibelhofer , Martin Schlaeffer 
@invariants
(pkcs11ModulePath_ <> null)/**
 * This is the default implementation of the PKCS11 interface. IT connects to
 * the pkcs11wrapper.dll file, which is the native part of this library.
 * The strange and awkward looking initialization was chosen to avoid calling
 * loadLibrary from a static initialization block, because this would complicate
 * the use in applets.
 *
 * @author Karl Scheibelhofer <Karl.Scheibelhofer@iaik.at>
 * @author Martin Schlaeffer <schlaeff@sbox.tugraz.at>
 * @invariants (pkcs11ModulePath_ <> null)
 */
public class PKCS11 {

    
The name of the native part of the wrapper; i.e. the filename without
the extension (e.g. ".DLL" or ".so").
/**
     * The name of the native part of the wrapper; i.e. the filename without
     * the extension (e.g. ".DLL" or ".so").
     */
    private static final String PKCS11_WRAPPER = "j2pkcs11";

    static {
        // cannot use LoadLibraryAction because that would make the native
        // library available to the bootclassloader, but we run in the
        // extension classloader.
        AccessController.doPrivileged(new PrivilegedAction<Object>() {
            public Object run() {
                System.loadLibrary(PKCS11_WRAPPER);
                return null;
            }
        });
        initializeLibrary();
    }

    public static void loadNative() {
        // dummy method that can be called to make sure the native
        // portion has been loaded. actual loading happens in the
        // static initializer, hence this method is empty.
    }

    
The PKCS#11 module to connect to. This is the PKCS#11 driver of the token;
e.g. pk2priv.dll.
/**
     * The PKCS#11 module to connect to. This is the PKCS#11 driver of the token;
     * e.g. pk2priv.dll.
     */
    private final String pkcs11ModulePath;

    private long pNativeData;

    
This method does the initialization of the native library. It is called
exactly once for this class.
@preconditions
@postconditions
/**
     * This method does the initialization of the native library. It is called
     * exactly once for this class.
     *
     * @preconditions
     * @postconditions
     */
    private static native void initializeLibrary();

    // XXX
    
This method does the finalization of the native library. It is called
exactly once for this class. The library uses this method for a clean-up
of any resources.
@preconditions
@postconditions
/**
     * This method does the finalization of the native library. It is called
     * exactly once for this class. The library uses this method for a clean-up
     * of any resources.
     *
     * @preconditions
     * @postconditions
     */
    private static native void finalizeLibrary();

    private static final Map<String,PKCS11> moduleMap =
        new HashMap<String,PKCS11>();

    
Connects to the PKCS#11 driver given. The filename must contain the
path, if the driver is not in the system's search path.
Params:
pkcs11ModulePath – the PKCS#11 library path
@preconditions
(pkcs11ModulePath <> null)
@postconditions
/**
     * Connects to the PKCS#11 driver given. The filename must contain the
     * path, if the driver is not in the system's search path.
     *
     * @param pkcs11ModulePath the PKCS#11 library path
     * @preconditions (pkcs11ModulePath <> null)
     * @postconditions
     */
    PKCS11(String pkcs11ModulePath, String functionListName)
            throws IOException {
        connect(pkcs11ModulePath, functionListName);
        this.pkcs11ModulePath = pkcs11ModulePath;
    }

    public static synchronized PKCS11 getInstance(String pkcs11ModulePath,
            String functionList, CK_C_INITIALIZE_ARGS pInitArgs,
            boolean omitInitialize) throws IOException, PKCS11Exception {
        // we may only call C_Initialize once per native .so/.dll
        // so keep a cache using the (non-canonicalized!) path
        PKCS11 pkcs11 = moduleMap.get(pkcs11ModulePath);
        if (pkcs11 == null) {
            if ((pInitArgs != null)
                    && ((pInitArgs.flags & CKF_OS_LOCKING_OK) != 0)) {
                pkcs11 = new PKCS11(pkcs11ModulePath, functionList);
            } else {
                pkcs11 = new SynchronizedPKCS11(pkcs11ModulePath, functionList);
            }
            if (omitInitialize == false) {
                try {
                    pkcs11.C_Initialize(pInitArgs);
                } catch (PKCS11Exception e) {
                    // ignore already-initialized error code
                    // rethrow all other errors
                    if (e.getErrorCode() != CKR_CRYPTOKI_ALREADY_INITIALIZED) {
                        throw e;
                    }
                }
            }
            moduleMap.put(pkcs11ModulePath, pkcs11);
        }
        return pkcs11;
    }

    
Connects this object to the specified PKCS#11 library. This method is for
internal use only.
Declared private, because incorrect handling may result in errors in the
native part.
Params:
pkcs11ModulePath – The PKCS#11 library path.
@preconditions
(pkcs11ModulePath <> null)
@postconditions
/**
     * Connects this object to the specified PKCS#11 library. This method is for
     * internal use only.
     * Declared private, because incorrect handling may result in errors in the
     * native part.
     *
     * @param pkcs11ModulePath The PKCS#11 library path.
     * @preconditions (pkcs11ModulePath <> null)
     * @postconditions
     */
    private native void connect(String pkcs11ModulePath, String functionListName)
            throws IOException;

    
Disconnects the PKCS#11 library from this object. After calling this
method, this object is no longer connected to a native PKCS#11 module
and any subsequent calls to C_ methods will fail. This method is for
internal use only.
Declared private, because incorrect handling may result in errors in the
native part.
@preconditions
@postconditions
/**
     * Disconnects the PKCS#11 library from this object. After calling this
     * method, this object is no longer connected to a native PKCS#11 module
     * and any subsequent calls to C_ methods will fail. This method is for
     * internal use only.
     * Declared private, because incorrect handling may result in errors in the
     * native part.
     *
     * @preconditions
     * @postconditions
     */
    private native void disconnect();


    // Implementation of PKCS11 methods delegated to native pkcs11wrapper library

/* *****************************************************************************
 * General-purpose
 ******************************************************************************/

    
C_Initialize initializes the Cryptoki library.
(General-purpose)
Params:
pInitArgs – if pInitArgs is not NULL it gets casted to
        CK_C_INITIALIZE_ARGS_PTR and dereferenced
        (PKCS#11 param: CK_VOID_PTR pInitArgs)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_Initialize initializes the Cryptoki library.
     * (General-purpose)
     *
     * @param pInitArgs if pInitArgs is not NULL it gets casted to
     *         CK_C_INITIALIZE_ARGS_PTR and dereferenced
     *         (PKCS#11 param: CK_VOID_PTR pInitArgs)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    native void C_Initialize(Object pInitArgs) throws PKCS11Exception;

    
C_Finalize indicates that an application is done with the
Cryptoki library
(General-purpose)
Params:
pReserved – is reserved. Should be NULL_PTR
        (PKCS#11 param: CK_VOID_PTR pReserved)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pReserved == null)
@postconditions
/**
     * C_Finalize indicates that an application is done with the
     * Cryptoki library
     * (General-purpose)
     *
     * @param pReserved is reserved. Should be NULL_PTR
     *         (PKCS#11 param: CK_VOID_PTR pReserved)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pReserved == null)
     * @postconditions
     */
    public native void C_Finalize(Object pReserved) throws PKCS11Exception;


    
C_GetInfo returns general information about Cryptoki.
(General-purpose)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the information.
        (PKCS#11 param: CK_INFO_PTR pInfo)
@preconditions
@postconditions
(result <> null)/**
     * C_GetInfo returns general information about Cryptoki.
     * (General-purpose)
     *
     * @return the information.
     *         (PKCS#11 param: CK_INFO_PTR pInfo)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native CK_INFO C_GetInfo() throws PKCS11Exception;


/* *****************************************************************************
 * Slot and token management
 ******************************************************************************/

    
C_GetSlotList obtains a list of slots in the system.
(Slot and token management)
Params:
tokenPresent – if true only Slot IDs with a token are returned
        (PKCS#11 param: CK_BBOOL tokenPresent)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
a long array of slot IDs and number of Slot IDs
        (PKCS#11 param: CK_SLOT_ID_PTR pSlotList, CK_ULONG_PTR pulCount)
@preconditions
@postconditions
(result <> null)/**
     * C_GetSlotList obtains a list of slots in the system.
     * (Slot and token management)
     *
     * @param tokenPresent if true only Slot IDs with a token are returned
     *         (PKCS#11 param: CK_BBOOL tokenPresent)
     * @return a long array of slot IDs and number of Slot IDs
     *         (PKCS#11 param: CK_SLOT_ID_PTR pSlotList, CK_ULONG_PTR pulCount)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native long[] C_GetSlotList(boolean tokenPresent)
            throws PKCS11Exception;


    
C_GetSlotInfo obtains information about a particular slot in
the system.
(Slot and token management)
Params:
slotID – the ID of the slot
        (PKCS#11 param: CK_SLOT_ID slotID)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the slot information
        (PKCS#11 param: CK_SLOT_INFO_PTR pInfo)
@preconditions
@postconditions
(result <> null)/**
     * C_GetSlotInfo obtains information about a particular slot in
     * the system.
     * (Slot and token management)
     *
     * @param slotID the ID of the slot
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @return the slot information
     *         (PKCS#11 param: CK_SLOT_INFO_PTR pInfo)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native CK_SLOT_INFO C_GetSlotInfo(long slotID) throws PKCS11Exception;


    
C_GetTokenInfo obtains information about a particular token
in the system.
(Slot and token management)
Params:
slotID – ID of the token's slot
        (PKCS#11 param: CK_SLOT_ID slotID)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the token information
        (PKCS#11 param: CK_TOKEN_INFO_PTR pInfo)
@preconditions
@postconditions
(result <> null)/**
     * C_GetTokenInfo obtains information about a particular token
     * in the system.
     * (Slot and token management)
     *
     * @param slotID ID of the token's slot
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @return the token information
     *         (PKCS#11 param: CK_TOKEN_INFO_PTR pInfo)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native CK_TOKEN_INFO C_GetTokenInfo(long slotID)
            throws PKCS11Exception;


    
C_GetMechanismList obtains a list of mechanism types
supported by a token.
(Slot and token management)
Params:
slotID – ID of the token's slot
        (PKCS#11 param: CK_SLOT_ID slotID)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
a long array of mechanism types and number of mechanism types
        (PKCS#11 param: CK_MECHANISM_TYPE_PTR pMechanismList,
                        CK_ULONG_PTR pulCount)
@preconditions
@postconditions
(result <> null)/**
     * C_GetMechanismList obtains a list of mechanism types
     * supported by a token.
     * (Slot and token management)
     *
     * @param slotID ID of the token's slot
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @return a long array of mechanism types and number of mechanism types
     *         (PKCS#11 param: CK_MECHANISM_TYPE_PTR pMechanismList,
     *                         CK_ULONG_PTR pulCount)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native long[] C_GetMechanismList(long slotID) throws PKCS11Exception;


    
C_GetMechanismInfo obtains information about a particular
mechanism possibly supported by a token.
(Slot and token management)
Params:
slotID – ID of the token's slot
        (PKCS#11 param: CK_SLOT_ID slotID)
type – type of mechanism
        (PKCS#11 param: CK_MECHANISM_TYPE type)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the mechanism info
        (PKCS#11 param: CK_MECHANISM_INFO_PTR pInfo)
@preconditions
@postconditions
(result <> null)/**
     * C_GetMechanismInfo obtains information about a particular
     * mechanism possibly supported by a token.
     * (Slot and token management)
     *
     * @param slotID ID of the token's slot
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @param type type of mechanism
     *         (PKCS#11 param: CK_MECHANISM_TYPE type)
     * @return the mechanism info
     *         (PKCS#11 param: CK_MECHANISM_INFO_PTR pInfo)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native CK_MECHANISM_INFO C_GetMechanismInfo(long slotID, long type)
            throws PKCS11Exception;


    /**
     * C_InitToken initializes a token.
     * (Slot and token management)
     *
     * @param slotID ID of the token's slot
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @param pPin the SO's initial PIN and the length in bytes of the PIN
     *         (PKCS#11 param: CK_CHAR_PTR pPin, CK_ULONG ulPinLen)
     * @param pLabel 32-byte token label (blank padded)
     *         (PKCS#11 param: CK_UTF8CHAR_PTR pLabel)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native void C_InitToken(long slotID, char[] pPin, char[] pLabel)
//            throws PKCS11Exception;


    /**
     * C_InitPIN initializes the normal user's PIN.
     * (Slot and token management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPin the normal user's PIN and the length in bytes of the PIN
     *         (PKCS#11 param: CK_CHAR_PTR pPin, CK_ULONG ulPinLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native void C_InitPIN(long hSession, char[] pPin)
//            throws PKCS11Exception;


    /**
     * C_SetPIN modifies the PIN of the user who is logged in.
     * (Slot and token management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pOldPin the old PIN and the length of the old PIN
     *         (PKCS#11 param: CK_CHAR_PTR pOldPin, CK_ULONG ulOldLen)
     * @param pNewPin the new PIN and the length of the new PIN
     *         (PKCS#11 param: CK_CHAR_PTR pNewPin, CK_ULONG ulNewLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native void C_SetPIN(long hSession, char[] pOldPin, char[] pNewPin)
//            throws PKCS11Exception;



/* *****************************************************************************
 * Session management
 ******************************************************************************/

    
C_OpenSession opens a session between an application and a
token.
(Session management)
Params:
slotID – the slot's ID
        (PKCS#11 param: CK_SLOT_ID slotID)
flags – of CK_SESSION_INFO
        (PKCS#11 param: CK_FLAGS flags)
pApplication – passed to callback
        (PKCS#11 param: CK_VOID_PTR pApplication)
Notify – the callback function
        (PKCS#11 param: CK_NOTIFY Notify)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the session handle
        (PKCS#11 param: CK_SESSION_HANDLE_PTR phSession)
@preconditions
@postconditions
/**
     * C_OpenSession opens a session between an application and a
     * token.
     * (Session management)
     *
     * @param slotID the slot's ID
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @param flags of CK_SESSION_INFO
     *         (PKCS#11 param: CK_FLAGS flags)
     * @param pApplication passed to callback
     *         (PKCS#11 param: CK_VOID_PTR pApplication)
     * @param Notify the callback function
     *         (PKCS#11 param: CK_NOTIFY Notify)
     * @return the session handle
     *         (PKCS#11 param: CK_SESSION_HANDLE_PTR phSession)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native long C_OpenSession(long slotID, long flags,
            Object pApplication, CK_NOTIFY Notify) throws PKCS11Exception;


    
C_CloseSession closes a session between an application and a
token.
(Session management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_CloseSession closes a session between an application and a
     * token.
     * (Session management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_CloseSession(long hSession) throws PKCS11Exception;


    /**
     * C_CloseAllSessions closes all sessions with a token.
     * (Session management)
     *
     * @param slotID the ID of the token's slot
     *         (PKCS#11 param: CK_SLOT_ID slotID)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native void C_CloseAllSessions(long slotID) throws PKCS11Exception;


    
C_GetSessionInfo obtains information about the session.
(Session management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the session info
        (PKCS#11 param: CK_SESSION_INFO_PTR pInfo)
@preconditions
@postconditions
(result <> null)/**
     * C_GetSessionInfo obtains information about the session.
     * (Session management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @return the session info
     *         (PKCS#11 param: CK_SESSION_INFO_PTR pInfo)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native CK_SESSION_INFO C_GetSessionInfo(long hSession)
            throws PKCS11Exception;


    
C_GetOperationState obtains the state of the cryptographic operation
in a session.
(Session management)
Params:
hSession – session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the state and the state length
        (PKCS#11 param: CK_BYTE_PTR pOperationState,
                        CK_ULONG_PTR pulOperationStateLen)
@preconditions
@postconditions
(result <> null)/**
     * C_GetOperationState obtains the state of the cryptographic operation
     * in a session.
     * (Session management)
     *
     * @param hSession session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @return the state and the state length
     *         (PKCS#11 param: CK_BYTE_PTR pOperationState,
     *                         CK_ULONG_PTR pulOperationStateLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native byte[] C_GetOperationState(long hSession)
            throws PKCS11Exception;


    
C_SetOperationState restores the state of the cryptographic
operation in a session.
(Session management)
Params:
hSession – session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pOperationState – the state and the state length
        (PKCS#11 param: CK_BYTE_PTR pOperationState,
                        CK_ULONG ulOperationStateLen)
hEncryptionKey – en/decryption key
        (PKCS#11 param: CK_OBJECT_HANDLE hEncryptionKey)
hAuthenticationKey – sign/verify key
        (PKCS#11 param: CK_OBJECT_HANDLE hAuthenticationKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_SetOperationState restores the state of the cryptographic
     * operation in a session.
     * (Session management)
     *
     * @param hSession session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pOperationState the state and the state length
     *         (PKCS#11 param: CK_BYTE_PTR pOperationState,
     *                         CK_ULONG ulOperationStateLen)
     * @param hEncryptionKey en/decryption key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hEncryptionKey)
     * @param hAuthenticationKey sign/verify key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hAuthenticationKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_SetOperationState(long hSession, byte[] pOperationState,
            long hEncryptionKey, long hAuthenticationKey) throws PKCS11Exception;


    
C_Login logs a user into a token.
(Session management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
userType – the user type
        (PKCS#11 param: CK_USER_TYPE userType)
pPin – the user's PIN and the length of the PIN
        (PKCS#11 param: CK_CHAR_PTR pPin, CK_ULONG ulPinLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_Login logs a user into a token.
     * (Session management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param userType the user type
     *         (PKCS#11 param: CK_USER_TYPE userType)
     * @param pPin the user's PIN and the length of the PIN
     *         (PKCS#11 param: CK_CHAR_PTR pPin, CK_ULONG ulPinLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_Login(long hSession, long userType, char[] pPin)
            throws PKCS11Exception;


    
C_Logout logs a user out from a token.
(Session management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_Logout logs a user out from a token.
     * (Session management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_Logout(long hSession) throws PKCS11Exception;



/* *****************************************************************************
 * Object management
 ******************************************************************************/

    
C_CreateObject creates a new object.
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pTemplate – the object's template and number of attributes in
        template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the object's handle
        (PKCS#11 param: CK_OBJECT_HANDLE_PTR phObject)
@preconditions
@postconditions
/**
     * C_CreateObject creates a new object.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pTemplate the object's template and number of attributes in
     *         template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @return the object's handle
     *         (PKCS#11 param: CK_OBJECT_HANDLE_PTR phObject)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native long C_CreateObject(long hSession, CK_ATTRIBUTE[] pTemplate)
            throws PKCS11Exception;


    
C_CopyObject copies an object, creating a new object for the
copy.
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
hObject – the object's handle
        (PKCS#11 param: CK_OBJECT_HANDLE hObject)
pTemplate – the template for the new object and number of attributes
        in template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the handle of the copy
        (PKCS#11 param: CK_OBJECT_HANDLE_PTR phNewObject)
@preconditions
@postconditions
/**
     * C_CopyObject copies an object, creating a new object for the
     * copy.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param hObject the object's handle
     *         (PKCS#11 param: CK_OBJECT_HANDLE hObject)
     * @param pTemplate the template for the new object and number of attributes
     *         in template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @return the handle of the copy
     *         (PKCS#11 param: CK_OBJECT_HANDLE_PTR phNewObject)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native long C_CopyObject(long hSession, long hObject,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception;


    
C_DestroyObject destroys an object.
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
hObject – the object's handle
        (PKCS#11 param: CK_OBJECT_HANDLE hObject)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_DestroyObject destroys an object.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param hObject the object's handle
     *         (PKCS#11 param: CK_OBJECT_HANDLE hObject)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_DestroyObject(long hSession, long hObject)
            throws PKCS11Exception;


    /**
     * C_GetObjectSize gets the size of an object in bytes.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param hObject the object's handle
     *         (PKCS#11 param: CK_OBJECT_HANDLE hObject)
     * @return the size of the object
     *         (PKCS#11 param: CK_ULONG_PTR pulSize)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native long C_GetObjectSize(long hSession, long hObject)
//            throws PKCS11Exception;


    
C_GetAttributeValue obtains the value of one or more object
attributes. The template attributes also receive the values.
(Object management)
note: in PKCS#11 pTemplate and the result template are the same
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
hObject – the object's handle
        (PKCS#11 param: CK_OBJECT_HANDLE hObject)
pTemplate – specifies the attributes and number of attributes to get
                 The template attributes also receive the values.
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pTemplate <> null)
@postconditions
(result <> null)/**
     * C_GetAttributeValue obtains the value of one or more object
     * attributes. The template attributes also receive the values.
     * (Object management)
     * note: in PKCS#11 pTemplate and the result template are the same
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param hObject the object's handle
     *         (PKCS#11 param: CK_OBJECT_HANDLE hObject)
     * @param pTemplate specifies the attributes and number of attributes to get
     *                  The template attributes also receive the values.
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pTemplate <> null)
     * @postconditions (result <> null)
     */
    public native void C_GetAttributeValue(long hSession, long hObject,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception;


    
C_SetAttributeValue modifies the value of one or more object
attributes
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
hObject – the object's handle
        (PKCS#11 param: CK_OBJECT_HANDLE hObject)
pTemplate – specifies the attributes and values to get; number of
        attributes in the template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pTemplate <> null)
@postconditions
/**
     * C_SetAttributeValue modifies the value of one or more object
     * attributes
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param hObject the object's handle
     *         (PKCS#11 param: CK_OBJECT_HANDLE hObject)
     * @param pTemplate specifies the attributes and values to get; number of
     *         attributes in the template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pTemplate <> null)
     * @postconditions
     */
    public native void C_SetAttributeValue(long hSession, long hObject,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception;


    
C_FindObjectsInit initializes a search for token and session
objects that match a template.
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pTemplate – the object's attribute values to match and the number of
        attributes in search template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_FindObjectsInit initializes a search for token and session
     * objects that match a template.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pTemplate the object's attribute values to match and the number of
     *         attributes in search template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_FindObjectsInit(long hSession, CK_ATTRIBUTE[] pTemplate)
            throws PKCS11Exception;


    
C_FindObjects continues a search for token and session
objects that match a template, obtaining additional object
handles.
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
ulMaxObjectCount – the max. object handles to get
        (PKCS#11 param: CK_ULONG ulMaxObjectCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the object's handles and the actual number of objects returned
        (PKCS#11 param: CK_ULONG_PTR pulObjectCount)
@preconditions
@postconditions
(result <> null)/**
     * C_FindObjects continues a search for token and session
     * objects that match a template, obtaining additional object
     * handles.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param ulMaxObjectCount the max. object handles to get
     *         (PKCS#11 param: CK_ULONG ulMaxObjectCount)
     * @return the object's handles and the actual number of objects returned
     *         (PKCS#11 param: CK_ULONG_PTR pulObjectCount)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native long[] C_FindObjects(long hSession, long ulMaxObjectCount)
            throws PKCS11Exception;


    
C_FindObjectsFinal finishes a search for token and session
objects.
(Object management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_FindObjectsFinal finishes a search for token and session
     * objects.
     * (Object management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_FindObjectsFinal(long hSession) throws PKCS11Exception;



/* *****************************************************************************
 * Encryption and decryption
 ******************************************************************************/

    
C_EncryptInit initializes an encryption operation.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the encryption mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hKey – the handle of the encryption key
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_EncryptInit initializes an encryption operation.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the encryption mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hKey the handle of the encryption key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_EncryptInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception;


    
C_Encrypt encrypts single-part data.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pData – the data to get encrypted and the data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the encrypted data and the encrypted data's length
        (PKCS#11 param: CK_BYTE_PTR pEncryptedData,
                        CK_ULONG_PTR pulEncryptedDataLen)
@preconditions
(pData <> null)
@postconditions
(result <> null)/**
     * C_Encrypt encrypts single-part data.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pData the data to get encrypted and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
     * @return the encrypted data and the encrypted data's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedData,
     *                         CK_ULONG_PTR pulEncryptedDataLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pData <> null)
     * @postconditions (result <> null)
     */
    public native int C_Encrypt(long hSession, byte[] in, int inOfs, int inLen,
            byte[] out, int outOfs, int outLen) throws PKCS11Exception;


    
C_EncryptUpdate continues a multiple-part encryption
operation.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pPart – the data part to get encrypted and the data part's length
        (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the encrypted data part and the encrypted data part's length
        (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
CK_ULONG_PTR pulEncryptedPartLen)
@preconditions
(pPart <> null)
@postconditions
/**
     * C_EncryptUpdate continues a multiple-part encryption
     * operation.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPart the data part to get encrypted and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
     * @return the encrypted data part and the encrypted data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
                             CK_ULONG_PTR pulEncryptedPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pPart <> null)
     * @postconditions
     */
    public native int C_EncryptUpdate(long hSession, long directIn, byte[] in,
            int inOfs, int inLen, long directOut, byte[] out, int outOfs,
            int outLen) throws PKCS11Exception;


    
C_EncryptFinal finishes a multiple-part encryption
operation.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the last encrypted data part and the last data part's length
        (PKCS#11 param: CK_BYTE_PTR pLastEncryptedPart,
CK_ULONG_PTR pulLastEncryptedPartLen)
@preconditions
@postconditions
(result <> null)/**
     * C_EncryptFinal finishes a multiple-part encryption
     * operation.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @return the last encrypted data part and the last data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pLastEncryptedPart,
                             CK_ULONG_PTR pulLastEncryptedPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native int C_EncryptFinal(long hSession, long directOut, byte[] out,
            int outOfs, int outLen) throws PKCS11Exception;


    
C_DecryptInit initializes a decryption operation.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the decryption mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hKey – the handle of the decryption key
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_DecryptInit initializes a decryption operation.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the decryption mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hKey the handle of the decryption key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_DecryptInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception;


    
C_Decrypt decrypts encrypted data in a single part.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pEncryptedData – the encrypted data to get decrypted and the
        encrypted data's length
        (PKCS#11 param: CK_BYTE_PTR pEncryptedData,
                        CK_ULONG ulEncryptedDataLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the decrypted data and the data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
@preconditions
(pEncryptedPart <> null)
@postconditions
(result <> null)/**
     * C_Decrypt decrypts encrypted data in a single part.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pEncryptedData the encrypted data to get decrypted and the
     *         encrypted data's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedData,
     *                         CK_ULONG ulEncryptedDataLen)
     * @return the decrypted data and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pEncryptedPart <> null)
     * @postconditions (result <> null)
     */
    public native int C_Decrypt(long hSession, byte[] in, int inOfs, int inLen,
            byte[] out, int outOfs, int outLen) throws PKCS11Exception;


    
C_DecryptUpdate continues a multiple-part decryption
operation.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pEncryptedPart – the encrypted data part to get decrypted and the
        encrypted data part's length
        (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
                        CK_ULONG ulEncryptedPartLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the decrypted data part and the data part's length
        (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
@preconditions
(pEncryptedPart <> null)
@postconditions
/**
     * C_DecryptUpdate continues a multiple-part decryption
     * operation.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pEncryptedPart the encrypted data part to get decrypted and the
     *         encrypted data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
     *                         CK_ULONG ulEncryptedPartLen)
     * @return the decrypted data part and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pEncryptedPart <> null)
     * @postconditions
     */
    public native int C_DecryptUpdate(long hSession, long directIn, byte[] in,
            int inOfs, int inLen, long directOut, byte[] out, int outOfs,
            int outLen) throws PKCS11Exception;


    
C_DecryptFinal finishes a multiple-part decryption
operation.
(Encryption and decryption)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the last decrypted data part and the last data part's length
        (PKCS#11 param: CK_BYTE_PTR pLastPart,
                        CK_ULONG_PTR pulLastPartLen)
@preconditions
@postconditions
(result <> null)/**
     * C_DecryptFinal finishes a multiple-part decryption
     * operation.
     * (Encryption and decryption)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @return the last decrypted data part and the last data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pLastPart,
     *                         CK_ULONG_PTR pulLastPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native int C_DecryptFinal(long hSession, long directOut, byte[] out,
            int outOfs, int outLen) throws PKCS11Exception;



/* *****************************************************************************
 * Message digesting
 ******************************************************************************/

    
C_DigestInit initializes a message-digesting operation.
(Message digesting)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the digesting mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_DigestInit initializes a message-digesting operation.
     * (Message digesting)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the digesting mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_DigestInit(long hSession, CK_MECHANISM pMechanism)
            throws PKCS11Exception;


    // note that C_DigestSingle does not exist in PKCS#11
    // we combined the C_DigestInit and C_Digest into a single function
    // to save on Java<->C transitions and save 5-10% on small digests
    // this made the C_Digest method redundant, it has been removed
    
C_Digest digests data in a single part.
(Message digesting)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
data – the data to get digested and the data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the message digest and the length of the message digest
        (PKCS#11 param: CK_BYTE_PTR pDigest, CK_ULONG_PTR pulDigestLen)
@preconditions
(data <> null)
@postconditions
(result <> null)/**
     * C_Digest digests data in a single part.
     * (Message digesting)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param data the data to get digested and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
     * @return the message digest and the length of the message digest
     *         (PKCS#11 param: CK_BYTE_PTR pDigest, CK_ULONG_PTR pulDigestLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (data <> null)
     * @postconditions (result <> null)
     */
    public native int C_DigestSingle(long hSession, CK_MECHANISM pMechanism,
            byte[] in, int inOfs, int inLen, byte[] digest, int digestOfs,
            int digestLen) throws PKCS11Exception;


    
C_DigestUpdate continues a multiple-part message-digesting
operation.
(Message digesting)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pPart – the data to get digested and the data's length
        (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pPart <> null)
@postconditions
/**
     * C_DigestUpdate continues a multiple-part message-digesting
     * operation.
     * (Message digesting)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPart the data to get digested and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pPart <> null)
     * @postconditions
     */
    public native void C_DigestUpdate(long hSession, long directIn, byte[] in,
            int inOfs, int inLen) throws PKCS11Exception;


    
C_DigestKey continues a multi-part message-digesting
operation, by digesting the value of a secret key as part of
the data already digested.
(Message digesting)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
hKey – the handle of the secret key to be digested
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_DigestKey continues a multi-part message-digesting
     * operation, by digesting the value of a secret key as part of
     * the data already digested.
     * (Message digesting)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param hKey the handle of the secret key to be digested
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_DigestKey(long hSession, long hKey)
            throws PKCS11Exception;


    
C_DigestFinal finishes a multiple-part message-digesting
operation.
(Message digesting)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the message digest and the length of the message digest
        (PKCS#11 param: CK_BYTE_PTR pDigest, CK_ULONG_PTR pulDigestLen)
@preconditions
@postconditions
(result <> null)/**
     * C_DigestFinal finishes a multiple-part message-digesting
     * operation.
     * (Message digesting)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @return the message digest and the length of the message digest
     *         (PKCS#11 param: CK_BYTE_PTR pDigest, CK_ULONG_PTR pulDigestLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native int C_DigestFinal(long hSession, byte[] pDigest, int digestOfs,
            int digestLen) throws PKCS11Exception;



/* *****************************************************************************
 * Signing and MACing
 ******************************************************************************/

    
C_SignInit initializes a signature (private key encryption)
operation, where the signature is (will be) an appendix to
the data, and plaintext cannot be recovered from the
signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the signature mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hKey – the handle of the signature key
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_SignInit initializes a signature (private key encryption)
     * operation, where the signature is (will be) an appendix to
     * the data, and plaintext cannot be recovered from the
     * signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the signature mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hKey the handle of the signature key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_SignInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception;


    
C_Sign signs (encrypts with private key) data in a single
part, where the signature is (will be) an appendix to the
data, and plaintext cannot be recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pData – the data to sign and the data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the signature and the signature's length
        (PKCS#11 param: CK_BYTE_PTR pSignature,
                        CK_ULONG_PTR pulSignatureLen)
@preconditions
(pData <> null)
@postconditions
(result <> null)/**
     * C_Sign signs (encrypts with private key) data in a single
     * part, where the signature is (will be) an appendix to the
     * data, and plaintext cannot be recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pData the data to sign and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
     * @return the signature and the signature's length
     *         (PKCS#11 param: CK_BYTE_PTR pSignature,
     *                         CK_ULONG_PTR pulSignatureLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pData <> null)
     * @postconditions (result <> null)
     */
    public native byte[] C_Sign(long hSession, byte[] pData)
            throws PKCS11Exception;


    
C_SignUpdate continues a multiple-part signature operation,
where the signature is (will be) an appendix to the data,
and plaintext cannot be recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pPart – the data part to sign and the data part's length
        (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pPart <> null)
@postconditions
/**
     * C_SignUpdate continues a multiple-part signature operation,
     * where the signature is (will be) an appendix to the data,
     * and plaintext cannot be recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPart the data part to sign and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pPart <> null)
     * @postconditions
     */
    public native void C_SignUpdate(long hSession, long directIn, byte[] in,
            int inOfs, int inLen) throws PKCS11Exception;


    
C_SignFinal finishes a multiple-part signature operation,
returning the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the signature and the signature's length
        (PKCS#11 param: CK_BYTE_PTR pSignature,
                        CK_ULONG_PTR pulSignatureLen)
@preconditions
@postconditions
(result <> null)/**
     * C_SignFinal finishes a multiple-part signature operation,
     * returning the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @return the signature and the signature's length
     *         (PKCS#11 param: CK_BYTE_PTR pSignature,
     *                         CK_ULONG_PTR pulSignatureLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native byte[] C_SignFinal(long hSession, int expectedLen)
            throws PKCS11Exception;


    
C_SignRecoverInit initializes a signature operation, where
the data can be recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the signature mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hKey – the handle of the signature key
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_SignRecoverInit initializes a signature operation, where
     * the data can be recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the signature mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hKey the handle of the signature key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_SignRecoverInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception;


    
C_SignRecover signs data in a single operation, where the
data can be recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pData – the data to sign and the data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the signature and the signature's length
        (PKCS#11 param: CK_BYTE_PTR pSignature,
                        CK_ULONG_PTR pulSignatureLen)
@preconditions
(pData <> null)
@postconditions
(result <> null)/**
     * C_SignRecover signs data in a single operation, where the
     * data can be recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pData the data to sign and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
     * @return the signature and the signature's length
     *         (PKCS#11 param: CK_BYTE_PTR pSignature,
     *                         CK_ULONG_PTR pulSignatureLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pData <> null)
     * @postconditions (result <> null)
     */
    public native int C_SignRecover(long hSession, byte[] in, int inOfs,
            int inLen, byte[] out, int outOufs, int outLen)
            throws PKCS11Exception;



/* *****************************************************************************
 * Verifying signatures and MACs
 ******************************************************************************/

    
C_VerifyInit initializes a verification operation, where the
signature is an appendix to the data, and plaintext cannot
cannot be recovered from the signature (e.g. DSA).
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the verification mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hKey – the handle of the verification key
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_VerifyInit initializes a verification operation, where the
     * signature is an appendix to the data, and plaintext cannot
     * cannot be recovered from the signature (e.g. DSA).
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the verification mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hKey the handle of the verification key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_VerifyInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception;


    
C_Verify verifies a signature in a single-part operation,
where the signature is an appendix to the data, and plaintext
cannot be recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pData – the signed data and the signed data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
pSignature – the signature to verify and the signature's length
        (PKCS#11 param: CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pData <> null) and (pSignature <> null)
@postconditions
/**
     * C_Verify verifies a signature in a single-part operation,
     * where the signature is an appendix to the data, and plaintext
     * cannot be recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pData the signed data and the signed data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG ulDataLen)
     * @param pSignature the signature to verify and the signature's length
     *         (PKCS#11 param: CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pData <> null) and (pSignature <> null)
     * @postconditions
     */
    public native void C_Verify(long hSession, byte[] pData, byte[] pSignature)
            throws PKCS11Exception;


    
C_VerifyUpdate continues a multiple-part verification
operation, where the signature is an appendix to the data,
and plaintext cannot be recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pPart – the signed data part and the signed data part's length
        (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pPart <> null)
@postconditions
/**
     * C_VerifyUpdate continues a multiple-part verification
     * operation, where the signature is an appendix to the data,
     * and plaintext cannot be recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPart the signed data part and the signed data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pPart <> null)
     * @postconditions
     */
    public native void C_VerifyUpdate(long hSession, long directIn, byte[] in,
            int inOfs, int inLen) throws PKCS11Exception;


    
C_VerifyFinal finishes a multiple-part verification
operation, checking the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pSignature – the signature to verify and the signature's length
        (PKCS#11 param: CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pSignature <> null)
@postconditions
/**
     * C_VerifyFinal finishes a multiple-part verification
     * operation, checking the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pSignature the signature to verify and the signature's length
     *         (PKCS#11 param: CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pSignature <> null)
     * @postconditions
     */
    public native void C_VerifyFinal(long hSession, byte[] pSignature)
            throws PKCS11Exception;


    
C_VerifyRecoverInit initializes a signature verification
operation, where the data is recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the verification mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hKey – the handle of the verification key
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
@postconditions
/**
     * C_VerifyRecoverInit initializes a signature verification
     * operation, where the data is recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the verification mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hKey the handle of the verification key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native void C_VerifyRecoverInit(long hSession,
            CK_MECHANISM pMechanism, long hKey) throws PKCS11Exception;


    
C_VerifyRecover verifies a signature in a single-part
operation, where the data is recovered from the signature.
(Signing and MACing)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pSignature – the signature to verify and the signature's length
        (PKCS#11 param: CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the recovered data and the recovered data's length
        (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
@preconditions
(pSignature <> null)
@postconditions
(result <> null)/**
     * C_VerifyRecover verifies a signature in a single-part
     * operation, where the data is recovered from the signature.
     * (Signing and MACing)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pSignature the signature to verify and the signature's length
     *         (PKCS#11 param: CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
     * @return the recovered data and the recovered data's length
     *         (PKCS#11 param: CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pSignature <> null)
     * @postconditions (result <> null)
     */
    public native int C_VerifyRecover(long hSession, byte[] in, int inOfs,
            int inLen, byte[] out, int outOufs, int outLen)
            throws PKCS11Exception;



/* *****************************************************************************
 * Dual-function cryptographic operations
 ******************************************************************************/

    /**
     * C_DigestEncryptUpdate continues a multiple-part digesting
     * and encryption operation.
     * (Dual-function cryptographic operations)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPart the data part to digest and to encrypt and the data's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
     * @return the digested and encrypted data part and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
     *                         CK_ULONG_PTR pulEncryptedPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pPart <> null)
     * @postconditions
     */
//    public native byte[] C_DigestEncryptUpdate(long hSession, byte[] pPart)
//            throws PKCS11Exception;


    /**
     * C_DecryptDigestUpdate continues a multiple-part decryption and
     * digesting operation.
     * (Dual-function cryptographic operations)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pEncryptedPart the encrypted data part to decrypt and to digest
     *         and encrypted data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
     *                         CK_ULONG ulEncryptedPartLen)
     * @return the decrypted and digested data part and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pEncryptedPart <> null)
     * @postconditions
     */
//    public native byte[] C_DecryptDigestUpdate(long hSession,
//            byte[] pEncryptedPart) throws PKCS11Exception;


    /**
     * C_SignEncryptUpdate continues a multiple-part signing and
     * encryption operation.
     * (Dual-function cryptographic operations)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pPart the data part to sign and to encrypt and the data part's
     *         length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG ulPartLen)
     * @return the signed and encrypted data part and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
     *                         CK_ULONG_PTR pulEncryptedPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pPart <> null)
     * @postconditions
     */
//    public native byte[] C_SignEncryptUpdate(long hSession, byte[] pPart)
//            throws PKCS11Exception;


    /**
     * C_DecryptVerifyUpdate continues a multiple-part decryption and
     * verify operation.
     * (Dual-function cryptographic operations)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pEncryptedPart the encrypted data part to decrypt and to verify
     *         and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pEncryptedPart,
     *                         CK_ULONG ulEncryptedPartLen)
     * @return the decrypted and verified data part and the data part's length
     *         (PKCS#11 param: CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pEncryptedPart <> null)
     * @postconditions
     */
//    public native byte[] C_DecryptVerifyUpdate(long hSession,
//            byte[] pEncryptedPart) throws PKCS11Exception;



/* *****************************************************************************
 * Key management
 ******************************************************************************/

    
C_GenerateKey generates a secret key, creating a new key
object.
(Key management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the key generation mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
pTemplate – the template for the new key and the number of
        attributes in the template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the handle of the new key
        (PKCS#11 param: CK_OBJECT_HANDLE_PTR phKey)
@preconditions
@postconditions
/**
     * C_GenerateKey generates a secret key, creating a new key
     * object.
     * (Key management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the key generation mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param pTemplate the template for the new key and the number of
     *         attributes in the template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @return the handle of the new key
     *         (PKCS#11 param: CK_OBJECT_HANDLE_PTR phKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native long C_GenerateKey(long hSession, CK_MECHANISM pMechanism,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception;


    
C_GenerateKeyPair generates a public-key/private-key pair,
creating new key objects.
(Key management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the key generation mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
pPublicKeyTemplate – the template for the new public key and the
        number of attributes in the template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pPublicKeyTemplate,
                        CK_ULONG ulPublicKeyAttributeCount)
pPrivateKeyTemplate – the template for the new private key and the
        number of attributes in the template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pPrivateKeyTemplate
                        CK_ULONG ulPrivateKeyAttributeCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
a long array with exactly two elements and the public key handle
        as the first element and the private key handle as the second
        element
        (PKCS#11 param: CK_OBJECT_HANDLE_PTR phPublicKey,
                        CK_OBJECT_HANDLE_PTR phPrivateKey)
@preconditions
(pMechanism <> null)
@postconditions
(result <> null) and (result.length == 2)/**
     * C_GenerateKeyPair generates a public-key/private-key pair,
     * creating new key objects.
     * (Key management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the key generation mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param pPublicKeyTemplate the template for the new public key and the
     *         number of attributes in the template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pPublicKeyTemplate,
     *                         CK_ULONG ulPublicKeyAttributeCount)
     * @param pPrivateKeyTemplate the template for the new private key and the
     *         number of attributes in the template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pPrivateKeyTemplate
     *                         CK_ULONG ulPrivateKeyAttributeCount)
     * @return a long array with exactly two elements and the public key handle
     *         as the first element and the private key handle as the second
     *         element
     *         (PKCS#11 param: CK_OBJECT_HANDLE_PTR phPublicKey,
     *                         CK_OBJECT_HANDLE_PTR phPrivateKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pMechanism <> null)
     * @postconditions (result <> null) and (result.length == 2)
     */
    public native long[] C_GenerateKeyPair(long hSession,
            CK_MECHANISM pMechanism, CK_ATTRIBUTE[] pPublicKeyTemplate,
            CK_ATTRIBUTE[] pPrivateKeyTemplate) throws PKCS11Exception;



    
C_WrapKey wraps (i.e., encrypts) a key.
(Key management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the wrapping mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hWrappingKey – the handle of the wrapping key
        (PKCS#11 param: CK_OBJECT_HANDLE hWrappingKey)
hKey – the handle of the key to be wrapped
        (PKCS#11 param: CK_OBJECT_HANDLE hKey)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the wrapped key and the length of the wrapped key
        (PKCS#11 param: CK_BYTE_PTR pWrappedKey,
                        CK_ULONG_PTR pulWrappedKeyLen)
@preconditions
@postconditions
(result <> null)/**
     * C_WrapKey wraps (i.e., encrypts) a key.
     * (Key management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the wrapping mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hWrappingKey the handle of the wrapping key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hWrappingKey)
     * @param hKey the handle of the key to be wrapped
     *         (PKCS#11 param: CK_OBJECT_HANDLE hKey)
     * @return the wrapped key and the length of the wrapped key
     *         (PKCS#11 param: CK_BYTE_PTR pWrappedKey,
     *                         CK_ULONG_PTR pulWrappedKeyLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions (result <> null)
     */
    public native byte[] C_WrapKey(long hSession, CK_MECHANISM pMechanism,
            long hWrappingKey, long hKey) throws PKCS11Exception;


    
C_UnwrapKey unwraps (decrypts) a wrapped key, creating a new
key object.
(Key management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the unwrapping mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hUnwrappingKey – the handle of the unwrapping key
        (PKCS#11 param: CK_OBJECT_HANDLE hUnwrappingKey)
pWrappedKey – the wrapped key to unwrap and the wrapped key's length
        (PKCS#11 param: CK_BYTE_PTR pWrappedKey, CK_ULONG ulWrappedKeyLen)
pTemplate – the template for the new key and the number of
        attributes in the template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the handle of the unwrapped key
        (PKCS#11 param: CK_OBJECT_HANDLE_PTR phKey)
@preconditions
(pWrappedKey <> null)
@postconditions
/**
     * C_UnwrapKey unwraps (decrypts) a wrapped key, creating a new
     * key object.
     * (Key management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the unwrapping mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hUnwrappingKey the handle of the unwrapping key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hUnwrappingKey)
     * @param pWrappedKey the wrapped key to unwrap and the wrapped key's length
     *         (PKCS#11 param: CK_BYTE_PTR pWrappedKey, CK_ULONG ulWrappedKeyLen)
     * @param pTemplate the template for the new key and the number of
     *         attributes in the template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @return the handle of the unwrapped key
     *         (PKCS#11 param: CK_OBJECT_HANDLE_PTR phKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pWrappedKey <> null)
     * @postconditions
     */
    public native long C_UnwrapKey(long hSession, CK_MECHANISM pMechanism,
            long hUnwrappingKey, byte[] pWrappedKey, CK_ATTRIBUTE[] pTemplate)
            throws PKCS11Exception;


    
C_DeriveKey derives a key from a base key, creating a new key
object.
(Key management)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pMechanism – the key derivation mechanism
        (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
hBaseKey – the handle of the base key
        (PKCS#11 param: CK_OBJECT_HANDLE hBaseKey)
pTemplate – the template for the new key and the number of
        attributes in the template
        (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
Returns:
the handle of the derived key
        (PKCS#11 param: CK_OBJECT_HANDLE_PTR phKey)
@preconditions
@postconditions
/**
     * C_DeriveKey derives a key from a base key, creating a new key
     * object.
     * (Key management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pMechanism the key derivation mechanism
     *         (PKCS#11 param: CK_MECHANISM_PTR pMechanism)
     * @param hBaseKey the handle of the base key
     *         (PKCS#11 param: CK_OBJECT_HANDLE hBaseKey)
     * @param pTemplate the template for the new key and the number of
     *         attributes in the template
     *         (PKCS#11 param: CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
     * @return the handle of the derived key
     *         (PKCS#11 param: CK_OBJECT_HANDLE_PTR phKey)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
    public native long C_DeriveKey(long hSession, CK_MECHANISM pMechanism,
            long hBaseKey, CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception;



/* *****************************************************************************
 * Random number generation
 ******************************************************************************/

    
C_SeedRandom mixes additional seed material into the token's
random number generator.
(Random number generation)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
pSeed – the seed material and the seed material's length
        (PKCS#11 param: CK_BYTE_PTR pSeed, CK_ULONG ulSeedLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(pSeed <> null)
@postconditions
/**
     * C_SeedRandom mixes additional seed material into the token's
     * random number generator.
     * (Random number generation)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param pSeed the seed material and the seed material's length
     *         (PKCS#11 param: CK_BYTE_PTR pSeed, CK_ULONG ulSeedLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pSeed <> null)
     * @postconditions
     */
    public native void C_SeedRandom(long hSession, byte[] pSeed)
            throws PKCS11Exception;


    
C_GenerateRandom generates random data.
(Random number generation)
Params:
hSession – the session's handle
        (PKCS#11 param: CK_SESSION_HANDLE hSession)
RandomData – receives the random data and the length of RandomData
        is the length of random data to be generated
        (PKCS#11 param: CK_BYTE_PTR pRandomData, CK_ULONG ulRandomLen)
Throws:
PKCS11Exception – If function returns other value than CKR_OK.
@preconditions
(randomData <> null)
@postconditions
/**
     * C_GenerateRandom generates random data.
     * (Random number generation)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @param RandomData receives the random data and the length of RandomData
     *         is the length of random data to be generated
     *         (PKCS#11 param: CK_BYTE_PTR pRandomData, CK_ULONG ulRandomLen)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (randomData <> null)
     * @postconditions
     */
    public native void C_GenerateRandom(long hSession, byte[] randomData)
            throws PKCS11Exception;



/* *****************************************************************************
 * Parallel function management
 ******************************************************************************/

    /**
     * C_GetFunctionStatus is a legacy function; it obtains an
     * updated status of a function running in parallel with an
     * application.
     * (Parallel function management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native void C_GetFunctionStatus(long hSession)
//            throws PKCS11Exception;


    /**
     * C_CancelFunction is a legacy function; it cancels a function
     * running in parallel.
     * (Parallel function management)
     *
     * @param hSession the session's handle
     *         (PKCS#11 param: CK_SESSION_HANDLE hSession)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions
     * @postconditions
     */
//    public native void C_CancelFunction(long hSession) throws PKCS11Exception;



/* *****************************************************************************
 * Functions added in for Cryptoki Version 2.01 or later
 ******************************************************************************/

    /**
     * C_WaitForSlotEvent waits for a slot event (token insertion,
     * removal, etc.) to occur.
     * (General-purpose)
     *
     * @param flags blocking/nonblocking flag
     *         (PKCS#11 param: CK_FLAGS flags)
     * @param pReserved reserved. Should be null
     *         (PKCS#11 param: CK_VOID_PTR pReserved)
     * @return the slot ID where the event occurred
     *         (PKCS#11 param: CK_SLOT_ID_PTR pSlot)
     * @exception PKCS11Exception If function returns other value than CKR_OK.
     * @preconditions (pRserved == null)
     * @postconditions
     */
//    public native long C_WaitForSlotEvent(long flags, Object pRserved)
//            throws PKCS11Exception;

    
Returns the string representation of this object.
Returns:
The string representation of object/**
     * Returns the string representation of this object.
     *
     * @return The string representation of object
     */
    public String toString() {
        return "Module name: " + pkcs11ModulePath;
    }

    
Calls disconnect() to cleanup the native part of the wrapper. Once this
method is called, this object cannot be used any longer. Any subsequent
call to a C_* method will result in a runtime exception.
Throws:
Throwable – If finalization fails./**
     * Calls disconnect() to cleanup the native part of the wrapper. Once this
     * method is called, this object cannot be used any longer. Any subsequent
     * call to a C_* method will result in a runtime exception.
     *
     * @exception Throwable If finalization fails.
     */
    public void finalize() throws Throwable {
        disconnect();
    }

// PKCS11 subclass that has all methods synchronized and delegating to the
// parent. Used for tokens that only support single threaded access
static class SynchronizedPKCS11 extends PKCS11 {

    SynchronizedPKCS11(String pkcs11ModulePath, String functionListName)
            throws IOException {
        super(pkcs11ModulePath, functionListName);
    }

    synchronized void C_Initialize(Object pInitArgs) throws PKCS11Exception {
        super.C_Initialize(pInitArgs);
    }

    public synchronized void C_Finalize(Object pReserved)
            throws PKCS11Exception {
        super.C_Finalize(pReserved);
    }

    public synchronized CK_INFO C_GetInfo() throws PKCS11Exception {
        return super.C_GetInfo();
    }

    public synchronized long[] C_GetSlotList(boolean tokenPresent)
            throws PKCS11Exception {
        return super.C_GetSlotList(tokenPresent);
    }

    public synchronized CK_SLOT_INFO C_GetSlotInfo(long slotID)
            throws PKCS11Exception {
        return super.C_GetSlotInfo(slotID);
    }

    public synchronized CK_TOKEN_INFO C_GetTokenInfo(long slotID)
            throws PKCS11Exception {
        return super.C_GetTokenInfo(slotID);
    }

    public synchronized long[] C_GetMechanismList(long slotID)
            throws PKCS11Exception {
        return super.C_GetMechanismList(slotID);
    }

    public synchronized CK_MECHANISM_INFO C_GetMechanismInfo(long slotID,
            long type) throws PKCS11Exception {
        return super.C_GetMechanismInfo(slotID, type);
    }

    public synchronized long C_OpenSession(long slotID, long flags,
            Object pApplication, CK_NOTIFY Notify) throws PKCS11Exception {
        return super.C_OpenSession(slotID, flags, pApplication, Notify);
    }

    public synchronized void C_CloseSession(long hSession)
            throws PKCS11Exception {
        super.C_CloseSession(hSession);
    }

    public synchronized CK_SESSION_INFO C_GetSessionInfo(long hSession)
            throws PKCS11Exception {
        return super.C_GetSessionInfo(hSession);
    }

    public synchronized void C_Login(long hSession, long userType, char[] pPin)
            throws PKCS11Exception {
        super.C_Login(hSession, userType, pPin);
    }

    public synchronized void C_Logout(long hSession) throws PKCS11Exception {
        super.C_Logout(hSession);
    }

    public synchronized long C_CreateObject(long hSession,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception {
        return super.C_CreateObject(hSession, pTemplate);
    }

    public synchronized long C_CopyObject(long hSession, long hObject,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception {
        return super.C_CopyObject(hSession, hObject, pTemplate);
    }

    public synchronized void C_DestroyObject(long hSession, long hObject)
            throws PKCS11Exception {
        super.C_DestroyObject(hSession, hObject);
    }

    public synchronized void C_GetAttributeValue(long hSession, long hObject,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception {
        super.C_GetAttributeValue(hSession, hObject, pTemplate);
    }

    public synchronized void C_SetAttributeValue(long hSession, long hObject,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception {
        super.C_SetAttributeValue(hSession, hObject, pTemplate);
    }

    public synchronized void C_FindObjectsInit(long hSession,
            CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception {
        super.C_FindObjectsInit(hSession, pTemplate);
    }

    public synchronized long[] C_FindObjects(long hSession,
            long ulMaxObjectCount) throws PKCS11Exception {
        return super.C_FindObjects(hSession, ulMaxObjectCount);
    }

    public synchronized void C_FindObjectsFinal(long hSession)
            throws PKCS11Exception {
        super.C_FindObjectsFinal(hSession);
    }

    public synchronized void C_EncryptInit(long hSession,
            CK_MECHANISM pMechanism, long hKey) throws PKCS11Exception {
        super.C_EncryptInit(hSession, pMechanism, hKey);
    }

    public synchronized int C_Encrypt(long hSession, byte[] in, int inOfs,
            int inLen, byte[] out, int outOfs, int outLen)
            throws PKCS11Exception {
        return super.C_Encrypt(hSession, in, inOfs, inLen, out, outOfs, outLen);
    }

    public synchronized int C_EncryptUpdate(long hSession, long directIn,
            byte[] in, int inOfs, int inLen, long directOut, byte[] out,
            int outOfs, int outLen) throws PKCS11Exception {
        return super.C_EncryptUpdate(hSession, directIn, in, inOfs, inLen,
                directOut, out, outOfs, outLen);
    }

    public synchronized int C_EncryptFinal(long hSession, long directOut,
            byte[] out, int outOfs, int outLen) throws PKCS11Exception {
        return super.C_EncryptFinal(hSession, directOut, out, outOfs, outLen);
    }

    public synchronized void C_DecryptInit(long hSession,
            CK_MECHANISM pMechanism, long hKey) throws PKCS11Exception {
        super.C_DecryptInit(hSession, pMechanism, hKey);
    }

    public synchronized int C_Decrypt(long hSession, byte[] in, int inOfs,
            int inLen, byte[] out, int outOfs, int outLen)
            throws PKCS11Exception {
        return super.C_Decrypt(hSession, in, inOfs, inLen, out, outOfs, outLen);
    }

    public synchronized int C_DecryptUpdate(long hSession, long directIn,
            byte[] in, int inOfs, int inLen, long directOut, byte[] out,
            int outOfs, int outLen) throws PKCS11Exception {
        return super.C_DecryptUpdate(hSession, directIn, in, inOfs, inLen,
                directOut, out, outOfs, outLen);
    }

    public synchronized int C_DecryptFinal(long hSession, long directOut,
            byte[] out, int outOfs, int outLen) throws PKCS11Exception {
        return super.C_DecryptFinal(hSession, directOut, out, outOfs, outLen);
    }

    public synchronized void C_DigestInit(long hSession, CK_MECHANISM pMechanism)
            throws PKCS11Exception {
        super.C_DigestInit(hSession, pMechanism);
    }

    public synchronized int C_DigestSingle(long hSession,
            CK_MECHANISM pMechanism, byte[] in, int inOfs, int inLen,
            byte[] digest, int digestOfs, int digestLen) throws PKCS11Exception {
        return super.C_DigestSingle(hSession, pMechanism, in, inOfs, inLen,
                digest, digestOfs, digestLen);
    }

    public synchronized void C_DigestUpdate(long hSession, long directIn,
            byte[] in, int inOfs, int inLen) throws PKCS11Exception {
        super.C_DigestUpdate(hSession, directIn, in, inOfs, inLen);
    }

    public synchronized void C_DigestKey(long hSession, long hKey)
            throws PKCS11Exception {
        super.C_DigestKey(hSession, hKey);
    }

    public synchronized int C_DigestFinal(long hSession, byte[] pDigest,
            int digestOfs, int digestLen) throws PKCS11Exception {
        return super.C_DigestFinal(hSession, pDigest, digestOfs, digestLen);
    }

    public synchronized void C_SignInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception {
        super.C_SignInit(hSession, pMechanism, hKey);
    }

    public synchronized byte[] C_Sign(long hSession, byte[] pData)
            throws PKCS11Exception {
        return super.C_Sign(hSession, pData);
    }

    public synchronized void C_SignUpdate(long hSession, long directIn,
            byte[] in, int inOfs, int inLen) throws PKCS11Exception {
        super.C_SignUpdate(hSession, directIn, in, inOfs, inLen);
    }

    public synchronized byte[] C_SignFinal(long hSession, int expectedLen)
            throws PKCS11Exception {
        return super.C_SignFinal(hSession, expectedLen);
    }

    public synchronized void C_SignRecoverInit(long hSession,
            CK_MECHANISM pMechanism, long hKey) throws PKCS11Exception {
        super.C_SignRecoverInit(hSession, pMechanism, hKey);
    }

    public synchronized int C_SignRecover(long hSession, byte[] in, int inOfs,
            int inLen, byte[] out, int outOufs, int outLen)
            throws PKCS11Exception {
        return super.C_SignRecover(hSession, in, inOfs, inLen, out, outOufs,
                outLen);
    }

    public synchronized void C_VerifyInit(long hSession, CK_MECHANISM pMechanism,
            long hKey) throws PKCS11Exception {
        super.C_VerifyInit(hSession, pMechanism, hKey);
    }

    public synchronized void C_Verify(long hSession, byte[] pData,
            byte[] pSignature) throws PKCS11Exception {
        super.C_Verify(hSession, pData, pSignature);
    }

    public synchronized void C_VerifyUpdate(long hSession, long directIn,
            byte[] in, int inOfs, int inLen) throws PKCS11Exception {
        super.C_VerifyUpdate(hSession, directIn, in, inOfs, inLen);
    }

    public synchronized void C_VerifyFinal(long hSession, byte[] pSignature)
            throws PKCS11Exception {
        super.C_VerifyFinal(hSession, pSignature);
    }

    public synchronized void C_VerifyRecoverInit(long hSession,
            CK_MECHANISM pMechanism, long hKey) throws PKCS11Exception {
        super.C_VerifyRecoverInit(hSession, pMechanism, hKey);
    }

    public synchronized int C_VerifyRecover(long hSession, byte[] in, int inOfs,
            int inLen, byte[] out, int outOufs, int outLen)
            throws PKCS11Exception {
        return super.C_VerifyRecover(hSession, in, inOfs, inLen, out, outOufs,
                outLen);
    }

    public synchronized long C_GenerateKey(long hSession,
            CK_MECHANISM pMechanism, CK_ATTRIBUTE[] pTemplate)
            throws PKCS11Exception {
        return super.C_GenerateKey(hSession, pMechanism, pTemplate);
    }

    public synchronized long[] C_GenerateKeyPair(long hSession,
            CK_MECHANISM pMechanism, CK_ATTRIBUTE[] pPublicKeyTemplate,
            CK_ATTRIBUTE[] pPrivateKeyTemplate)
            throws PKCS11Exception {
        return super.C_GenerateKeyPair(hSession, pMechanism, pPublicKeyTemplate,
                pPrivateKeyTemplate);
    }

    public synchronized byte[] C_WrapKey(long hSession, CK_MECHANISM pMechanism,
            long hWrappingKey, long hKey) throws PKCS11Exception {
        return super.C_WrapKey(hSession, pMechanism, hWrappingKey, hKey);
    }

    public synchronized long C_UnwrapKey(long hSession, CK_MECHANISM pMechanism,
            long hUnwrappingKey, byte[] pWrappedKey, CK_ATTRIBUTE[] pTemplate)
            throws PKCS11Exception {
        return super.C_UnwrapKey(hSession, pMechanism, hUnwrappingKey,
                pWrappedKey, pTemplate);
    }

    public synchronized long C_DeriveKey(long hSession, CK_MECHANISM pMechanism,
    long hBaseKey, CK_ATTRIBUTE[] pTemplate) throws PKCS11Exception {
        return super.C_DeriveKey(hSession, pMechanism, hBaseKey, pTemplate);
    }

    public synchronized void C_SeedRandom(long hSession, byte[] pSeed)
            throws PKCS11Exception {
        super.C_SeedRandom(hSession, pSeed);
    }

    public synchronized void C_GenerateRandom(long hSession, byte[] randomData)
            throws PKCS11Exception {
        super.C_GenerateRandom(hSession, randomData);
    }
}
}