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Deleting a file securely

how to programatically delete a file securely  so that it cannot be recovered with any other tool

Edited by: P puvvada on 11 Nov, 2013
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3 Replies
hgw7

Don't know about the non-recoverable state, but you can refer the following links to delete the files programmatically:

https://developer.tizen.org/help/index.jsp?topic=%2Forg.tizen.native.apireference%2FclassTizen_1_1Io_1_1File.html 

https://developer.tizen.org/help/index.jsp?topic=%2Forg.tizen.web.appprogramming%2Fhtml%2Ftutorials%2Fio_tutorial%2Ftask_filemanager.htm

 

Alex Ashirov

Hi,

I am not sure that there is such API, but I think you have at least 2 options:

  1. You can fill the file with zeros, save it and then remove it.
  2. Use srm linux command.
P puvvada

Thanks for  reply

i have followed the similar approach of what you have said

Before deleting the file ,i will overwrite the contents of the file with junk character and then i will delete the file so that even after recovery also original data is not there