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Originally Posted by aximbigfan
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i dk if this is in effect for flash memory, but what about the cluster tips? will your software erse those too?
chris
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no. this is exactly how it works:
for each overwrite, it opens the file, writes to the end of the file with whichever overwrite method its using, and closes the file.
when it's finished all the passes, it again opens the file for a truncation operation, truncates it to byte 0, then closes the file.
it then deletes the 0 byte file.
it's not complex by any means. but it will prevent someone picking up a misplaced card, popping it in a PC with a card reader, and running file recovery tools to get useful information back. At this point i'm unsure of how to remove the cluster tips in flash memory without damaging the media or making more of a mess. and since i test all my own software on my own (out of warranty) axim, i wouldn't want to kill anything ;)