Securely delete a file 1

[csutton]

In my program, I have to create an encrypted file from a plain text file. My question is: Is there a way of SECURELY deleting the original plain text file so that it is difficult ( I know it isn't impossible) to recover this file?

Thank you.

 

[chiph]

Open the file in binary mode, and overwrite it 5 times with random data prior to deleting it. Get the random data from the RNGCryptoServiceProvider class in System.Security, not the VB built-in method Random()

Note that this overwrite method won't work on flash drives because of the way they rotate write locations.

Chip H.


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[csutton]

thanks chip.