pycurve25519

Python 2.7 wrapper for curve25519 (based on curve25519-donna).

Usage

import curve25519

# Generate two private keys
privateA = curve25519.genkey()
privateB = curve25519.genkey()

# Obtain the equivalent public keys
publicA = curve25519.public(privateA)
publicB = curve25519.public(privateB)

# Compute the shared secret (sharedA == sharedB)
sharedA = curve25519.shared(privateA, publicB)
sharedB = curve25519.shared(privateB, publicA)

# Pass the shared secret in a KDF or other before use

Installation

python setup.py build
python setup.py install
python test_curve25519.py