seb-m / wcurve

wcurve implements basic arithmetic operations on elliptic curves in short Weiertsraß form.

wcurve

• Project URL : http://github.com/seb-m/wcurve
• Documentation : http://seb-m.github.com/wcurve
• Dependencies : Python ≥ 2.4
• License : MIT

Description

This package implements basic arithmetic operations such as point addition and single-scalar multiplication on elliptic curves in short Weiertsrass form.

Example

import wcurve, random
# Instantiate secp256r1 standardized curve
curve  = wcurve.secp256r1_curve()
# Generate a new secret value
sk = random.SystemRandom().randint(1, curve.n - 1)
# Compute the public key associated to the previous secret
pk = sk * curve.base_point
# Get its affine coordinates
pkx, pky = pk.to_affine()

Install

# From tarball
$ sudo python setup.py install
# Or with setuptools
$ sudo easy_install wcurve

Run tests

$ make test

Build Documentation

The current documentation is built with Sphynx, just use this command to generate it:

$ cd doc/ && make html