[Cfrg] Rerun: Elliptic Curves - preferred curves around 256bit work factor (ends on March 3rd)

[Alexey Melnikov <[e-mail]>]

CFRG chairs are starting another poll:

Q3: This is a Quaker poll (please answer one of "preferred", 
"acceptable" or "no") for each curve specified below:

1) 448 (Goldilocks)
2) 480
3) 521
4) other curve (please name another curve that you "prefer" or "accept", 
or state "no")

If you stated your curve preferences in the poll that ended on February 
23rd (see the attachment), you don't need to reply to this poll, your 
opinion is already recorded. But please double check what chairs 
recorded (see the attachment).

If you changed your mind or only answered the question about performance 
versa memory usage for curves 512 and 521, feel free to reply.

Once this issues is settled, we will be discussing (in no particular 
order. Chairs reserve the right to add additional questions) 
implementation specifics and coordinate systems for Diffie-Hellman. We 
will then make decisions on signature schemes. Please don't discuss any 
of these future topics at this time.