def test_prefix(self):
sk1, vk1 = ed25519.create_keypair()
PREFIX = "private0-"
p = sk1.to_bytes(PREFIX)
# that gives us a binary string with a prefix
self.failUnless(p.startswith(PREFIX), repr(p))
sk2 = ed25519.SigningKey(p, prefix=PREFIX)
self.failUnlessEqual(sk1, sk2)
self.failUnlessEqual(repr(sk1.to_bytes()), repr(sk2.to_bytes()))
self.failUnlessRaises(ed25519.BadPrefixError, ed25519.SigningKey, p, prefix="WRONG-")
# SigningKey.to_seed() can do a prefix too
p = sk1.to_seed(PREFIX)
self.failUnless(p.startswith(PREFIX), repr(p))
sk3 = ed25519.SigningKey(p, prefix=PREFIX)
self.failUnlessEqual(sk1, sk3)
self.failUnlessEqual(repr(sk1.to_bytes()), repr(sk3.to_bytes()))
self.failUnlessRaises(ed25519.BadPrefixError, ed25519.SigningKey, p, prefix="WRONG-")
# verifying keys can do this too
PREFIX = "public0-"
p = vk1.to_bytes(PREFIX)
self.failUnless(p.startswith(PREFIX), repr(p))
vk2 = ed25519.VerifyingKey(p, prefix=PREFIX)
self.failUnlessEqual(vk1, vk2)
self.failUnlessEqual(repr(vk1.to_bytes()), repr(vk2.to_bytes()))
self.failUnlessRaises(ed25519.BadPrefixError, ed25519.VerifyingKey, p, prefix="WRONG-")
# and signatures
PREFIX = "sig0-"
p = sk1.sign("msg", PREFIX)
self.failUnless(p.startswith(PREFIX), repr(p))
vk1.verify(p, "msg", PREFIX)
self.failUnlessRaises(ed25519.BadPrefixError, vk1.verify, p, "msg", prefix="WRONG-")
def test_keypair(self):
sk, vk = ed25519.create_keypair()
self.failUnless(isinstance(sk, ed25519.SigningKey), sk)
self.failUnless(isinstance(vk, ed25519.VerifyingKey), vk)
sk2, vk2 = ed25519.create_keypair()
self.failIfEqual(hexlify(sk.to_bytes()), hexlify(sk2.to_bytes()))
# you can control the entropy source
def not_so_random(length):
return "4" * length
sk1, vk1 = ed25519.create_keypair(entropy=not_so_random)
self.failUnlessEqual(sk1.to_ascii(encoding="base64"), "NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ")
self.failUnlessEqual(vk1.to_ascii(encoding="base64"), "6yzxO/euOl9hQWih+wknLTl3HsS4UjcngV5GbK+O4WM")
sk2, vk2 = ed25519.create_keypair(entropy=not_so_random)
self.failUnlessEqual(sk1.to_ascii(encoding="base64"), sk2.to_ascii(encoding="base64"))
self.failUnlessEqual(vk1.to_ascii(encoding="base64"), vk2.to_ascii(encoding="base64"))
