diff -r 51a74ef9ed63 -r ae94777fff8f Symbian3/SDK/Source/GUID-9E3ADEB4-C000-525D-B220-2BAFF5DC6B0C.dita --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Symbian3/SDK/Source/GUID-9E3ADEB4-C000-525D-B220-2BAFF5DC6B0C.dita Fri Jun 11 12:39:03 2010 +0100 @@ -0,0 +1,82 @@ + + + + + +Password Based Encryption (PBE) example support code

Below is the supporting code for the PBE example code.

<codeblock id="GUID-E9CCC5E6-FDB6-53A0-B7F3-85CFD57FE290" xml:space="preserve"> +#include "e32std.h" +#include "f32file.h" +#include "s32file.h" +#include "pbe.h" +#include "pbedata.h" + </codeblock> <codeblock id="GUID-A6FDAAD3-8418-59BD-BE62-6F4C31F0F3CF" xml:space="preserve"> +/* + * Class to demonstrate the use of the PBE API. + */ +class CPBEExample : public CBase + { +public: + static CPBEExample* NewLC(); + virtual ~CPBEExample(); + + void WriteEncryptedDataL(const TDesC8& aInput, const TDesC& aFilename, const TDesC& aPassword); + HBufC8* ReadEncryptedDataLC(const TDesC& aFilename, const TDesC& aPassword); +private: + CPBEExample(); + void ConstructL(); +private: + RFs iFs; + }; + </codeblock> <codeblock id="GUID-4F7B60AF-62C3-55B3-B1F9-3084D68A97AB" xml:space="preserve"> +CPBEExample* CPBEExample::NewLC() + { + CPBEExample* self = new (ELeave) CPBEExample(); + CleanupStack::PushL(self); + self->ConstructL(); + return self; + } + +CPBEExample::CPBEExample() + { + } + +void CPBEExample::ConstructL() + { + User::LeaveIfError(iFs.Connect()); + } + +CPBEExample::~CPBEExample() + { + iFs.Close(); + } + </codeblock> <codeblock id="GUID-17DECEE0-FE01-5F1F-9143-02462DE3C418" xml:space="preserve"> +LOCAL_D void RunPBEExampleL() + { + _LIT(KFilename, "c:\\pbe_example_data.dat"); + _LIT8(KInputData, "This is the data to be encrypted"); + _LIT(KPassword, "pa55w0rd"); + + CPBEExample* main = CPBEExample::NewLC(); + main->WriteEncryptedDataL(KInputData, KFilename, KPassword); + HBufC8* outputData = main->ReadEncryptedDataLC(KFilename, KPassword); + ASSERT(*outputData == KInputData); + CleanupStack::PopAndDestroy(2, main); + } + </codeblock> <codeblock id="GUID-589330F6-B593-5722-AD3B-73CA53BEDB76" xml:space="preserve"> +GLDEF_C TInt E32Main() // main function called by E32 + { + __UHEAP_MARK; + CTrapCleanup* cleanup = CTrapCleanup::New(); // get clean-up stack + TRAPD(error, RunPBEExampleL()); + __ASSERT_ALWAYS(!error,User::Panic(_L("pbe_example_code"),error)); + delete cleanup; // destroy clean-up stack + __UHEAP_MARKEND; + return 0; + } + </codeblock> </section> </conbody></concept> \ No newline at end of file