diff -r f5050f1da672 -r 04becd199f91 javaextensions/satsa/crypto/javasrc/java/security/Signature.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/satsa/crypto/javasrc/java/security/Signature.java	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,80 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+
+package java.security;
+
+
+import com.nokia.mj.impl.security.SignatureImpl;
+import java.security.PrivSignatureImpl;
+
+/**
+ * Refer JSR-177 Specification for details
+ */
+public abstract class Signature
+{
+    /**
+     * Signature implementation
+     */
+    private SignatureImpl iSignature;
+
+    /**
+     * Package private constructor.
+     */
+    Signature(SignatureImpl aSignature)
+    {
+        iSignature = aSignature;
+    }
+
+    /**
+    * Refer JSR-177 Specification for details
+    */
+    static public Signature getInstance(String aAlgorithm)
+    throws NoSuchAlgorithmException
+    {
+        SignatureImpl signatureImpl = new SignatureImpl(aAlgorithm);
+        return new PrivSignatureImpl(signatureImpl);
+    }
+
+    /**
+    * Refer JSR-177 Specification for details
+    */
+    public final void initVerify(PublicKey aPublicKey)
+    throws InvalidKeyException
+    {
+        iSignature.initVerifyImpl(aPublicKey);
+    }
+
+    /**
+    * Refer JSR-177 Specification for details
+    */
+    public final void update(byte[] aData, int aOffset, int aLength)
+    throws SignatureException
+    {
+        iSignature.updateImpl(aData, aOffset, aLength);
+    }
+
+    /**
+    * Refer JSR-177 Specification for details
+    */
+    public final boolean verify(byte[] aSignature) throws SignatureException
+    {
+        return iSignature.verifyImpl(aSignature);
+    }
+
+}