Security Basics mailing list archives

Re: Password Management


From: "Alexander Bolante" <alexander.bolante () gmail com>
Date: Sun, 23 Apr 2006 13:11:25 -0700

I believe 'nightwatchman' hit all your foundational pwd policies. But
here are a few more to think about. Just fill in the ??? with whatever
suits your security policies. Keep in mind, the policy for normal user
accts should be different from generic/service accts.

Contain at least ??? numeric
Contain at least ??? non-numeric
Min length ???
Non-numeric in first/last position (if technically feasible)
Max consecutive identical char from any position in previous pwd ???
Max identical consecutive char ???
Contain User ID as part of pwd ???
Max change interval ??? days
Pwd expiration notification time ???  days
Number of pwd changes for which pwd cannot be reused ???
Sharing pwd ???
Non-expiring pwds ???
Pwd transmission ???
Pwd storage ???
Pwd expiration ???
Pwd filtering (if technically feasible)
Forced to change initial pwd at first logon and pwd must expire ???
hrs from date of issue

Have fun!

On 21 Apr 2006 18:13:45 -0000, nightwatchman () comcast net
<nightwatchman () comcast net> wrote:
Passwords should:

1.)  change every 90 days

2.)  contain atleast a combination of 3 classes of characters i.e. one or more uppercase, lowercase, non alpha 
numeric, and numeric.

3.) not be the same as the person's name, address or birthday or easily guessed from a person's personal information.

4.) not be written down.

5.) difficult to guess but easy to remember - phrases with substituted character classes seem to be easy to remember 
and work best for this.

6.) should not be stored unencrypted

7.) centrally managed in an authentication system.

8.) they shouldnt be shared with other users.

Service accounts ofcourse aren't subject to the 90 day limit.



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--
Alexander.Bolante () gmail com
abolante.blogspot.com

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