Help is always appreciated; if you'd like to submit a PR we'll be happy to 
review it!

-Paul

On May 15, 2015 at 3:26:29 PM, Dario Sneidermanis (dari...@gmail.com) wrote:

That'd be perfect. If you need a hand I can make a first draft over the weekend.

Dario


On Thu, May 14, 2015 at 2:45 PM, Alex Gaynor <alex.gay...@gmail.com> wrote:
Perhaps an EllipticCurvePrivateNumbers.from_private_number_and_curve() would be 
appropriate to automatically compute the public key?

Alex

On Thu, May 14, 2015 at 12:11 PM, Paul Kehrer <paul.l.keh...@gmail.com> wrote:
Hi Dario,

The creation of an EllipticCurvePrivateNumbers object does require you to do 
d*G yourself at this time. There is some precedent for us adding functions to 
compute other elements (see: 
https://cryptography.io/en/latest/hazmat/primitives/asymmetric/rsa/#handling-partial-rsa-private-keys)
 so a function to do this makes sense to me.

-Paul

On May 14, 2015 at 3:21:29 AM, Dario Sneidermanis (dari...@gmail.com) wrote:

Hi,

I'm trying to compute an EllipticCurvePrivateKey from a private_value (d). It 
seems that the only way to achieve this is to create an 
EllipticCurvePrivateNumbers object, but the constructor takes both the 
private_value and the public_numbers.

Why does it need the public_numbers, when it could compute them (knowing the 
curve), by doing d*G (G being the curve generator)?

Is there any way to go from d to the ECPrivKey without doing d*G by myself?

Thanks,
Dario
_______________________________________________
Cryptography-dev mailing list
Cryptography-dev@python.org
https://mail.python.org/mailman/listinfo/cryptography-dev

_______________________________________________
Cryptography-dev mailing list
Cryptography-dev@python.org
https://mail.python.org/mailman/listinfo/cryptography-dev




--
"I disapprove of what you say, but I will defend to the death your right to say 
it." -- Evelyn Beatrice Hall (summarizing Voltaire)
"The people's good is the highest law." -- Cicero
GPG Key fingerprint: 125F 5C67 DFE9 4084

_______________________________________________
Cryptography-dev mailing list
Cryptography-dev@python.org
https://mail.python.org/mailman/listinfo/cryptography-dev


_______________________________________________  
Cryptography-dev mailing list  
Cryptography-dev@python.org  
https://mail.python.org/mailman/listinfo/cryptography-dev  
_______________________________________________
Cryptography-dev mailing list
Cryptography-dev@python.org
https://mail.python.org/mailman/listinfo/cryptography-dev

Reply via email to