def test_sign_verify_random(self):
for l in range(1, 300):
sk = ed25519.generate_secret()
pk = ed25519.publickey(sk)
msg = random.bytes(l)
sig = ed25519.sign(sk, msg)
self.assertTrue(ed25519.verify(pk, sig, msg))
def test_cosi(self):
for N in range(1, 11):
# generate random message to be signed
msg = random.bytes(128)
# phase 0: create priv/pubkeys and combine pubkeys
keys = [None] * N
pubkeys = [None] * N
for j in range(N):
keys[j] = ed25519.generate_secret()
pubkeys[j] = ed25519.publickey(keys[j])
pubkey = ed25519.cosi_combine_publickeys(pubkeys)
# phase 1: create nonces, commitments (R values) and combine commitments
nonces = [None] * N
Rs = [None] * N
for j in range(N):
nonces[j] = ed25519.generate_secret()
Rs[j] = ed25519.publickey(nonces[j])
R = ed25519.cosi_combine_publickeys(Rs)
# phase 2: sign and combine signatures
sigs = [None] * N
for j in range(N):
sigs[j] = ed25519.cosi_sign(keys[j], msg, nonces[j], R, pubkey)
sig = ed25519.cosi_combine_signatures(R, sigs)
# check signature using normal ed25519.verify
res = ed25519.verify(pubkey, sig, msg)
self.assertTrue(res)
async def lisk_verify_message(ctx, msg):
digest = message_digest(msg.message)
verified = ed25519.verify(msg.public_key, msg.signature, digest)
if not verified:
raise wire.ProcessError('Invalid signature')
address = get_address_from_public_key(msg.public_key)
await require_confirm_verify_message(ctx, address, msg.message)
return Success(message='Message verified')
async def verify_message(ctx, msg):
digest = message_digest(msg.message)
verified = ed25519.verify(msg.public_key, msg.signature, digest)
if not verified:
raise wire.ProcessError("Invalid signature")
address = get_address_from_public_key(msg.public_key)
await confirm_signverify(ctx,
"Lisk",
decode_message(msg.message),
address=address)
return Success(message="Message verified")
def test_verify(self):
for sk, pk, sig in self.vectors:
# msg = pk
self.assertTrue(ed25519.verify(unhexlify(pk), unhexlify(sig), unhexlify(pk)))
pass
def _verify_message(public_key: bytes, signature: bytes, message: str):
return ed25519.verify(public_key, signature, message)