Elligator: Hiding cryptographic key exchange as random noise

Source code

A reference implementation in Python 3 for Curve25519 and Curve448.

elligator.py: The map and inverse map.
core.py: Core curve code & utilities.
curve25519.py: Curve25519 specific code and parameters.
curve448.py: Curve448 specific code and parameters.
hash_to_curve25519.py: Map random numbers to a Curve25519 points.
gen_vectors.py: generate test vectors (mostly boilerplate).