Firewall Wizards mailing list archives

Re: Off-topic: Password and PIN generation


From: "M. Dodge Mumford" <dodge () nfr net>
Date: Fri, 22 Oct 1999 10:33:47 -0400 (EDT)

From doc/faq.txt of Crack 5.0:

From the Security FAQ:
Q.16 How can I generate safe passwords?

You can't.  The key word here is GENERATE.  Once an algorithm for
creating passwords is specified using upon some systematic method, it
merely becomes a matter of analysing your algorithm in order to find
every password on your system.

Unless the algorithm is very subtle, it will probably suffer from a
very low period (ie: it will soon start to repeat itself) so that
either:

 a) a cracker can try out every possible output of the password
 generator on every user of the system, or

 b) the cracker can analyse the output of the password program,
 determine the algorithm being used, and apply the algorithm to other
 users to determine their passwords.

[ and so on ]

On Tue, 19 Oct 1999 srss () whoever com wrote:

Hi,

This is an off-topic question, so first I would like to apologize for deviating from the main subject of the list...

Apologies made (and hopefully accepted) - I am looking for information, referrals and/or best-practices for 
implementing a secure mechanism of password/pin generation and storage for e-commerce applications. Any 
recommendations or pointers would be greatly appreciated.

Thanks!

Sandra Santos
srss () whoever com

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Dodge



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