Hi Matt,

There are multiple issue/pull requests for this but unfortunately GitHub is 
down at the moment so I can't look them up... Once GitHub is back up and 
running take a look at https://github.com/pyca/cryptography/pull/2476 (that PR 
might have been split into other PRs that we've been discussing, but hopefully 
we've cross linked them)

Please weigh in on that as knowing all the potential consumers helps us decide 
whether the increase in API surface area is worthwhile.

-Paul Kehrer (reaperhulk)
On January 27, 2016 at 7:34:28 PM, Matt Bullock (matt.s.b...@gmail.com) wrote:

For a project I am working on, I have a need to encode/decode elliptic curve 
points using point compression[1].  As this is not yet supported natively by 
the cryptography library, I have started implementing it myself but have hit a 
snag.  Unlike the uncompressed point encoding, in order to decode a compressed 
curve point I need to be able to reference the curve parameters.  I have been 
searching through the cryptography documentation and code but cannot find any 
way of retrieving these values from the backend.

Is there a method for this that I am missing, or is this functionality not yet 
available?

thanks
   --Matt

[1] 2.3.3/2.3.4 http://www.secg.org/sec1-v2.pdf

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