Full Disclosure mailing list archives

Re: choice-point screw-up and secure hashes


From: "Jason Coombs" <jasonc () science org>
Date: Sat, 19 Mar 2005 23:16:18 +0000 GMT

i've been referring to a social
engineering attack where people
SIGNED UP FOR ACCOUNTS and got
the info because they were paying
customers and they asked for it!

The whole choicepoint behind the business model is to sell the SSNs to customers... If you choosepoint to defeat your 
own business model by choicepointing your customers to secure hashes rather than the SSNs they're really interested in 
acquiring, then your customers will choosepoint your competition instead, and the endpoint of your business strategy 
will be bankruptcy.

Suppose legislation existed to require all SSNs to be stored in hashed form, and encrypted while in transit. This way, 
your customers would be required to preserve the hashes and never cross-reference your data set with a data set that 
contains raw SSNs.

What does “in transit” mean? What does “stored” mean? What does “hashed” mean? Look at digital signature legislation. 
Even in countries that have tried to spell out required algorithms, the legislation still fails to force people to do 
things “right” by geek standards.

It's hopeless. Give up now, before anyone else gets hurt. You're not going to make things better by scraping some 
income for yourself off the topline revenue for helping your employer pretend that what they're doing is “okay”.

Sincerely,

Jason Coombs
jasonc () science org
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