lib25519 20230630.1

Python wrapper around implementation of the X25519 and Ed25519 cryptosystems

Python wrapper around implementation of the X25519 and Ed25519 cryptosystems

X25519

Import library:

from lib25519 import x25519

Key generation:

alicepk, alicesk = x25519.keypair()
bobpk, bobsk = x25519.keypair()

Shared-secret generation:

bobk = x25519.dh(alicepk, bobsk)
alicek = x25519.dh(bobpk, alicesk)

Check:

assert (alicek == bobk)

Ed25519

Import library:

from lib25519 import ed25519

Key generation:

alicepk, alicesk = ed25519.keypair()

Signature generation:

m = b'Hello'
sm = ed25519.sign(m, alicesk)

Signature verification and message recovery:

recoveredm = ed25519.open(sm, alicepk)

Check:

assert (m == recoveredm)