--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/utlcrypto/inc/utlcrypto.h	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,162 @@
+/*
+* Copyright (c) 2003-2006 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: Class definition of TUtlCrypto.
+*
+*/
+
+
+
+#if !defined(__UTLCRYPTO_H__)
+#define __UTLCRYPTO_H__
+
+#include <e32std.h>
+
+class CSymmetricCipher;
+class CDH;
+class CDHKeyPair;
+class CMessageDigest;
+class CDSASignature;
+class TUtlCrypto;
+
+
+class CUtlSymmetricCipher : public CBase
+/** 
+* Symmetric cipher
+* @internalComponent
+*/
+    {
+    friend class TUtlCrypto;
+public:
+    IMPORT_C ~CUtlSymmetricCipher();
+    
+    IMPORT_C void Process(const TDesC8& aInput, TDes8& aOutput);
+    IMPORT_C void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
+    IMPORT_C TInt MaxOutputLength(TInt aInputTextLength) const;
+    IMPORT_C TInt MaxFinalOutputLength(TInt aInputTextLength) const;
+    IMPORT_C void Reset();
+    IMPORT_C TInt BlockSize() const;
+    IMPORT_C TInt KeySize() const;
+private:
+    CUtlSymmetricCipher();
+private:
+    CSymmetricCipher* iSymmetricCipher;
+    };
+
+
+class CUtlMessageDigest : public CBase
+/** 
+* Message digester
+* @internalComponent
+*/
+    {
+    friend class TUtlCrypto;
+public:
+    IMPORT_C ~CUtlMessageDigest();
+
+    IMPORT_C CMessageDigest* ReplicateL(void);
+    IMPORT_C void Update(const TDesC8& aMessage);
+    IMPORT_C TPtrC8 Final(const TDesC8& aMessage);
+    IMPORT_C TPtrC8 Final(void);
+    IMPORT_C CMessageDigest* CopyL(void);
+    IMPORT_C TInt BlockSize(void) const;
+    IMPORT_C TInt HashSize(void) const;
+    IMPORT_C void Reset(void);
+    
+private:
+    CUtlMessageDigest();
+private:
+    CMessageDigest* iMessageDigest;
+    };
+
+
+class CUtlDiffieHellman : public CBase
+/** 
+* Diffie-Hellman key exchange
+* @internalComponent
+*/
+    {
+    friend class TUtlCrypto;
+public:
+    IMPORT_C ~CUtlDiffieHellman();
+    IMPORT_C const HBufC8* GenerateXL(void);
+    IMPORT_C const HBufC8* CompleteKL(const TDesC8& aY);
+    
+private:
+    CUtlDiffieHellman();
+private:
+    CDHKeyPair*     iDhKeyPair;
+    CDH*            iDhKeyAgreement;
+    TInt            iModulusLength;
+    };
+
+
+class TUtlCrypto
+/** 
+* Crypto factory
+* @internalComponent
+*/
+    {
+public:
+    enum TUtlSymmetricCipherId
+        { 
+        EUtlSymmetricCipherDesCbc,  ///< DES
+        EUtlSymmetricCipher3DesCbc, ///< 3DES
+        EUtlSymmetricCipherAesCbc   ///< AES
+        };
+    
+    enum TUtlMessageDigestId
+        { 
+        EUtlMessageDigestMd5,       ///< MD5
+        EUtlMessageDigestSha1       ///< SHA1
+        };
+    
+    enum TUtlCryptoVersion
+        { 
+        EUtlCryptoVersionOld,       ///< not Symbian crypto library
+        EUtlCryptoVersionSymbian1   ///< Symbian crypto library
+        };
+    
+public:
+    IMPORT_C static CUtlSymmetricCipher* MakeSymmetricEncryptorL(TUtlSymmetricCipherId aCipherId,
+                                                                 const TDesC8& aKey,
+                                                                 const TDesC8& aIv=KNullDesC8);
+    IMPORT_C static CUtlSymmetricCipher* MakeSymmetricDecryptorL(TUtlSymmetricCipherId aCipherId,
+                                                                 const TDesC8& aKey,
+                                                                 const TDesC8& aIv=KNullDesC8);
+
+    IMPORT_C static CUtlMessageDigest* MakeMessageDigesterL(TUtlMessageDigestId aDigestId,
+                                                            const TDesC8&       aHmacKey=KNullDesC8);
+    
+    IMPORT_C static CUtlDiffieHellman* MakeDiffieHellmanL(const TDesC8& aN, const TDesC8& aG);
+
+    IMPORT_C static void RsaPublicKeyEncryptL(const TDesC8&    aPublicKeyData,
+                                              const TDesC8&    aPlaintext,
+                                              HBufC8*&         aCiphertext);
+
+    IMPORT_C static void RsaPublicKeyDecryptL(const TDesC8&    aPublicKeyData,
+                                              const TDesC8&    aCiphertext,
+                                              HBufC8*&         aPlaintext);
+
+    IMPORT_C static TBool DsaVerifySignatureL(const TDesC8&       aPublicKeyData,
+                                              const TDesC8&       aDsaParams,
+                                              const TDesC8&       aDsaSignatureR,
+                                              const TDesC8&       aDsaSignatureS,
+                                              const TDesC8&       aHashData);
+    
+    IMPORT_C static TBool IsWeakCryptoLibrary(void);
+    
+    IMPORT_C static TUtlCryptoVersion CryptoVersion(void);
+    };
+
+#endif