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RE: [Assurance] Password scheme design tool...

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  • From: "Thomas P. Callaci" <>
  • To:
  • Subject: RE: [Assurance] Password scheme design tool...
  • Date: Tue, 13 Dec 2011 12:30:26 -0600
  • Organization: University of Wisconsin - Madison

I can humbly offer my Excel doc.
One sheet with "sliders" for user selected passwords and a different sheet
for "randomly chosen & assigned" passwords.

This is my latest rev. All versions are "beta". :)


Thomas P. Callaci
Information Security Risk Analyst
Office of Campus Information Security
University of Wisconsin - Madison
1210 W. Dayton Street
Madison, WI 53706


-----Original Message-----

On Behalf Of Mark John Rank
Sent: Tuesday, December 13, 2011 12:05 PM
To: assurance
Subject: [Assurance] Password scheme design tool...


I use to have a spreadsheet tool that allowed me to
model the entropy strength for a credential by adjusting
different parameters (#char, size of character set, TTL,
lockout rule, etc.). I appear to have lost track of
it and was wondering if the collective could suggest/share/point
me to a replacement resource? I thought I would ask
before trying to reconstruct from first principles.

Thanks in advance,

Mark Rank - IAM Program Manager
University Information Technology Services

Phn: 414-229-3706

Attachment: entropenator_expanded-draft1.xlsx
Description: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

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