RNG in a Smart Card

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Ng Pheng Siong (ngps@post1.com)
Thu, 16 Jul 1998 23:15:09 +0800

Hi,

(Attempting to draw another thread on randomness...)

Some smart cards, like Schlumberger's CryptoFlex, can generate keys
within the card. (Which others?)

The question is: how does a smart card harvest entropy to generate "good"
random numbers? There aren't UI events, network packets, etc.

If the entropy comes from sampling electrical noise, or whatever, what does
physics tell us about the constraints on parameters like sampling rate,
quantifying entropy, etc., in the context of operating within a smart card?

 
Cheers. 

-- 
Ng Pheng Siong <ngps@post1.com>

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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:20:27 ADT