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Re: password cracking: one char at a time.

Subject: Re: password cracking: one char at a time.
Date: Tue, 22 Nov 2005 19:30:48 +0100
michael young wrote:

Hi all,
   I was wondering if is at all possible to discover a password one
char at a time.
Normally, you either get the password right or wrong (all or nothing).

Usually is not possible to infer any information on the right password
just knowing that the tested one is wrong. A remarkable exception are
cash card PINs: http://www.cl.cam.ac.uk/TechReports/UCAM-CL-TR-560.pdf


-- 
IppatsuMan

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