Great Circle Associates Firewalls
(April 1996)
 

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Subject: Firewalls-Digest V5 #196 -Reply
From: DARRYL PANG <DPANG @ QUEENS . ORG>
Date: Mon, 01 Apr 1996 16:09:00 -1000
To: Firewalls @ GreatCircle . COM

FYI.  Suggestions for user's that always forget their
passwords.  This is an unauthorized excerpt from one of the
digests I receive.  I've highlighted the two most important
suggestions from this post.
------------------------------

From: Warren Moore <warren .
 moore @
 cbis .
 com>
Date: 28 Mar 96  8:02:31  Subject: Re: Password Generation

While it's somewhat off-topic, several folks have written
lately concerning  pronounceable passwords and the
generation thereof.  Allow me to add to the  confusion.  We
all know that:  1) Reusable password aren't safe, 2)
Passwords  need to be safe, 3) Passwords need to be hard
to crack, 4) Passwords need to be  easy to remember, 5)
and a whole lot of other binary sets that are mutually 
exclusive.  Those of us old enough to remember coding in
machine language also  remember that computer
passwords weren't originally for security purposes at  all, but
were accounting/billing codes.

However, we're stuck with them.  The powers that be in our
various  companies/organizations either aren't enlightened
enough to spend $35-65 each  for tokens for several
thousand users :-), or to mandate that everyone use  Skey,
or don't want to rock the boat, or whatever.  The scheme that
I've pushed  for years creates passwords that are first of all
easy for the user to remember  *which is by far the most
important thing from the user's viewpoint,* extremely  difficult
for a cracker to guess, and immune to dictionary attacks.  It's
based  on pass-phrases, but helps with the keying difficulty.

Simply think up a phrase that you can remember,
preferably including a date:   "I drive a 1954 Corvette in
parades."  (Boy, I wish!)  "My houseboat is a 1966  Coronet."
(Sold it.)  "I was born in May of 1943." (Yes, I am one of
Marcus'  "greybeards".)  Use the first letter of each
word and part of the date to  derive the password: 
ida54cip.  mhia66c.  iwbimo43.  Mix lower-case or 
upper-case as you wish, or even follow conventional rules
of capitalization in  your own grammar and treat it as a
sentence:  Ida54Cip.  Mhia66C.  IwbiMo43.   If you can't think
of a sentence on your own, use a song:  "Just sit right back 
and you'll hear a tale, a tale of a fateful trip.  That started
from this  tropic port, aboard this tiny ship."  ("Gilligan's Isle"
theme song for the c ulturally depraved.)  "Jsrbayhat,"
"atoaft," Tsfttp," "atts."  Works for me.

- ---
Warren S. Moore, CISSP
<warren .
 moore @
 cbis .
 com>
Information Security Specialist
Cincinnati Bell Information Systems Inc.

------------------------------



          Mahalo, DPP.     \m/ ^_^ \m/

The packet goes out the card, into the copper, out the router,
onto the fiber, across the world, thru the copper............
NOTHING BUT NET.





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