Re: FileCopy overwrites the existing file

Anton,

I m quite reliable about encryption than I use, at least when I can provide the encrypted data without exposing algorithm being used for encryption.

Of course you are right believing once the algorithm is exposed then there might exist many attack types that can try to bypass basic premises upon which safety/security of an algorithm is based. (And some of these attacks methods might not be publicly exposed.)
In case of symmetric algorithms I would be worried mostly about attack types that are based upon knowledge of part of the data that has been encrypted (ie the attacker has some data in both original and encrypted form) and attempts to use this knowledge to figure out the key that has been used with given algorithm to encrypt that data (faster than brute force of course).

Anyway, this discussion should long time ago be moved from microsoft.public.win32.programmer.kernel to some security related group, assuming there exist any reliable one. ;)

--
Grzegorz Wróbel
http://www.4neurons.com/
677265676F727940346E6575726F6E732E636F6D
.

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