jdk/src/jdk.crypto.token/share/classes/sun/security/pkcs11/wrapper/PKCS11.java
changeset 42693 6645de32a866
parent 39142 bf48a9f13cf2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.crypto.token/share/classes/sun/security/pkcs11/wrapper/PKCS11.java	Wed Dec 14 10:51:13 2016 -0800
@@ -0,0 +1,1827 @@
+/*
+ * Copyright (c) 2003, 2016, 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 sun.security.util.Debug;
+
+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 <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").
+     */
+    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;
+            }
+        });
+        boolean enableDebug = Debug.getInstance("sunpkcs11") != null;
+        initializeLibrary(enableDebug);
+    }
+
+    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.
+     */
+    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
+     */
+    private static native void initializeLibrary(boolean debug);
+
+    // 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
+     */
+    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.
+     *
+     * @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.
+     *
+     * @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
+     */
+    private native void disconnect();
+
+
+    // Implementation of PKCS11 methods delegated to native pkcs11wrapper library
+
+/* *****************************************************************************
+ * General-purpose
+ ******************************************************************************/
+
+    /**
+     * 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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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)
+     *
+     * @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.
+     *
+     * @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.
+     *
+     * @exception Throwable If finalization fails.
+     */
+    protected 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);
+    }
+}
+}