[Sks-devel] about ECC and collisions

[Jean-Jacques Brucker]

I have 3 questions :

1- As ECC crypto is soon available in gnupg, I am asking if sks key servers 
won't have problems managing them.

(That is  a great feature I am waiting for to use gpg with signing chains)

But the ECC curves are smaller than RSA or DSA keys, full collisions have more 
chances* to occurs (especially for NIST P-256).
(*note: maybe more that asteroid-human collisions :-) ). 

2- I like to know how sks key servers manage 2 identical keys inside different 
certificates.
Is a warning sent to the owners of the same key ?

3- When key ID collision occurs how to differentiate them with gnupg ? Is there 
a way to get only one of them from key servers (eg. for key ID A56E15A3, sorry 
if it's maybe not the place to ask that question).

N.B.: I am trying to fill some bitcoin defects (main improvement is IMHO to be 
human-based instead of cpu-based : http://www.open-udc.org, technical 
suggestions are welcome).

Regards,

-- 
Jean-Jacques B.

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