def test_sign(self):
random = np.random.RandomState(seed=1)
for i in range(10):
length = random.randint(1, 4096)
secret_key = bytes(random.randint(0, 256, 32, dtype=np.uint8))
msg = bytes(random.randint(0, 256, length, dtype=np.uint8))
public_key = monocypher.public_key_compute(secret_key)
sig = monocypher.signature_sign(secret_key, msg)
self.assertTrue(monocypher.signature_check(sig, public_key, msg))
self.assertFalse(monocypher.signature_check(sig, public_key, msg + b'0'))
sig2 = sig[:10] + bytes([sig[10] + 1]) + sig[11:]
self.assertFalse(monocypher.signature_check(sig2, public_key, msg))
def test_sign(self):
random = np.random.RandomState(seed=1)
for i in range(10):
length = random.randint(1, 4096)
secret_key = bytes(random.randint(0, 256, 32, dtype=np.uint8))
msg = bytes(random.randint(0, 256, length, dtype=np.uint8))
public_key = monocypher.compute_signing_public_key(secret_key)
sig = monocypher.signature_sign(secret_key, msg)
self.assertTrue(monocypher.signature_check(sig, public_key, msg))
self.assertFalse(
monocypher.signature_check(sig, public_key, msg + b'0'))
sig2 = sig[:10] + bytes([sig[10] + 1]) + sig[11:]
self.assertFalse(monocypher.signature_check(sig2, public_key, msg))
def append_encrypted(self,
tag,
data,
signing_key,
encryption_key,
nonce,
associated_data=None,
compress=None):
flags = 0
if bool(compress):
flags, data = _maybe_compress(data)
flags |= FLAG_ENCRYPT
signature = monocypher.signature_sign(signing_key, data)
mac, data = monocypher.lock(encryption_key, nonce, data,
associated_data)
log.info('signature = %r', binascii.hexlify(signature))
log.info('mac = %r', binascii.hexlify(mac))
pos = self._append(tag, flags, data)
self._append(TAG_ENCRYPTION, 0, mac + signature)
return pos
def signature_end(self):
s = monocypher.signature_sign(self._signature['key'],
self._signature['data'])
self.append(TAG_SIGNATURE_END, s)