[Cryptech Tech] Tor consensus use case

[Joachim Strömbergson]

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Aloha!

Linus Nordberg wrote:
> Tor status votes are signed once per hour using an authority signing
> key [0]. Status votes are verified ~10 times per hour (by directory 
> authorities, which is what we care about for this use case).
> 
> The outcome of the voting, a consensus status ("the consensus"), is 
> signed once per hour as well. Consensus statuses are verified ~10
> times per hour.
> 
> The digest algorithm used is SHA1 or SHA256. The signing algorithm is
> RSA. The key size is 2048-4096.

So the required number of active private keys to be handled (including
storage) by the machine is one?

And from a single machine there would be 2 sign operations/s and 10
verification operations/s.

- From how many nodes generating inbound status messages can a node
receive and thus need to have public keys for? (If I understand the use
case.)

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
========================================================================
 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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