Comments (2)
We wrote our prototype based on petlib: http://petlib.readthedocs.io/en/latest/
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Isn't this scalar multiplication in petlib though?
I'm also looking to use some of the primitives for Ethereum specific libraries so am using bn128 libraries you guys have included within this repo instead of those based on petlib. Though this is confusing me. What you are saying is that this calculation above is modular exponentiation as well?
EDIT: Here is where I'm stuck.
Lets say I want to sign a message in Pointcheval's scheme:
def sign(params, sk, m):
(G, o, g1, g2, e) = params
(x, y) = sk
r = o.random()
h = r*g1
sigma = (h, (x+y*m)*h)
return sigma
How can I compute sigma correctly so that (x+y*m)
is scalar multiplication and the next operation is exponentiation?
from coconut-ethereum.
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