[FoRK] Re: identity-based encryption

Meltsner, Kenneth Kenneth.Meltsner at ca.com
Tue Feb 10 10:31:59 PST 2004


Hence the popularity of SSNs as human identifiers, despite the known
problems [dead horse alert], and the limited applicability (US Citizens,
permanent residents, and other contributors to the Federal government's
charity/pension/Ponzi fund.) 

In fact, that's not a bad idea -- require companies to use IBE to
encrypt SSNs, possibly with a limited time to decrypt them.  Voila!  No
more easy correlation of information from multiple sources.  Might be a
worthwhile variation of the usual "encrypt personal identifiers and use
the encrypted values as keys" recommendation we often see.  Could work
for credit card numbers as well -- make the IBE string "CC # | Valid
Until Date | Payee Name" and never store the real CC number.


Ken

-----Original Message-----
From: fork-bounces at xent.com [mailto:fork-bounces at xent.com] On Behalf Of
Gregory Alan Bolcer
Sent: Tuesday, February 10, 2004 12:01 PM
Cc: forkit!
Subject: RE: [FoRK] Re: identity-based encryption

Strong persistency of identity is a useful thing.  
 
Greg



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