Security for the file created

[Sumithra_Nagappan]

Hai

 I'm creating a configuraton file via labview in a text file,my customer needs an security for the configuration file ..i have stucked,please help me out ..is it possible to create config file in anyother type of file??

[Gak]

You can encrypt the content while writing to configue file and decrypt it whlie reading it back. Refer following.. Also if you want you can hide file.

[Wire_Warrior]

As I recall the book, A Software Engineering Approach To LabVIEW, had a method of generating an encrypted INI file.  Basically, the idea was to create a wrapper around the NI INI vi's that would handle the data encryption and reads/writes of the file to disk. You might want to get a copy of that and check it out.

Alternatively, you could use the Windows registry to store protected data.

Jason

[Mark_Yedinak]

A more secure method would be to use the Blowfish algorrithm to encrypt the data.

[Sumithra_Nagappan]

Thank your reply,let me try with the algorithm...

[Sumithra_Nagappan]

Thank you sir..i'm trying with this..

[Sumithra_Nagappan]

hello sir 

         i tried this ..instead of creating an txt file i created an pdf file ..when i tried to open the file it says it is not valid pdf file but this config file is read during the execution and im getting the exact output..

[Mark_Yedinak]

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@Sumithra Nagappan wrote:

hello sir 

         i tried this ..instead of creating an txt file i created an pdf file ..when i tried to open the file it says it is not valid pdf file but this config file is read during the execution and im getting the exact output..

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Of course you can't open it with a PDF reader. Simply putting a .pdf extension on a file does not mean it is a PDF formatted file. The Blowfish algorithm is used to encrypt and decrypt data. It is not used to create PDF files.