def test_l4block_signing_hashing(self):
block = make_l4_block()
sig = crypto.sign_l4_block(blake2b, secp256k1, key, block)
self.assertEqual(
sig,
"MEUCIQDwOwwYlWivucunKJXm0KB+7BsEiHDmEKLg2wL6MKJIsQIgdtjZRBimLmsZjOcCkCmalLHf0sF2exAMsluuVxMaLvk="
)
sig = crypto.sign_l4_block(sha256, secp256k1, key, block)
self.assertEqual(
sig,
"MEQCIHcVPm+NEIEJXCeoWgX94fo7Y+kMhZGKtroh94iNZTTbAiB7qWPI3B4vpj0Ir5+X0gHv/m9Xq6abQnWRagH64Xu4OA=="
)
sig = crypto.sign_l4_block(sha3_256, secp256k1, key, block)
self.assertEqual(
sig,
"MEQCIDGi9WC8097OtOUXahHm0/uJP5PUv6isk1NVvulbQ2c2AiBULyExoupsgJ/2KFKDQYHF1qQa5++cZxFxyqlXPpY0lA=="
)
block_hash, nonce = crypto.pow_l4_block(blake2b, block)
self.assertEqual(block_hash,
"ACZ1yEGzRKKDxm9jqk5j8U6QRyeVHzqRjcS/G2gnEy8=")
self.assertEqual(nonce, 82)
block_hash, nonce = crypto.pow_l4_block(sha256, block)
self.assertEqual(block_hash,
"AEULvMdpuf6Sj7M3HxSCZLjQODViHxRRKMy4Ze0VrLY=")
self.assertEqual(nonce, 3)
block_hash, nonce = crypto.pow_l4_block(sha3_256, block)
self.assertEqual(block_hash,
"AOEPG+CTLsfaa92DpnOrkro+8WLGUKSKD28I+kqS9Lo=")
self.assertEqual(nonce, 182)
def test_l4block_pow_verifying(self):
block = make_l4_block()
block_hash, nonce = crypto.pow_l4_block(blake2b, block)
block.proof = block_hash
block.nonce = nonce
block.scheme = "work"
self.assertTrue(crypto.verify_l4_block_pow(blake2b, block))
valid_block = copy.deepcopy(block)
block.dc_id = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.block_id = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.timestamp = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.prev_proof = "forged=="
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.l1_dc_id = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.l1_block_id = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.l1_proof = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.validations[0]["l3_dc_id"] = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.validations[0]["l3_block_id"] = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.validations[0]["l3_proof"] = "forged"
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.validations[0]["valid"] = False
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.proof = "47DEQpj8HBSa+/FORGEDJCeuQeRkm5NMpJWZG3hSuFU="
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
block = copy.deepcopy(valid_block)
block.nonce = 0
self.assertFalse(crypto.verify_l4_block_pow(blake2b, block))
def pow_block(self, signable_block: "model.BlockModel") -> Tuple[str, int]:
"""Do proof of work on a block
Args:
block: BlockModel to do proof of work on
Returns:
Tuple where index 0 is a Base64 encoded string of the generated hash and index 1 is the nonce
Raises:
exceptions.InvalidNodeLevel when invalid level on self
"""
if self.level == 1:
return crypto.pow_l1_block(
self.hash, cast("l1_block_model.L1BlockModel", signable_block))
elif self.level == 2:
return crypto.pow_l2_block(
self.hash, cast("l2_block_model.L2BlockModel", signable_block))
elif self.level == 3:
return crypto.pow_l3_block(
self.hash, cast("l3_block_model.L3BlockModel", signable_block))
elif self.level == 4:
return crypto.pow_l4_block(
self.hash, cast("l4_block_model.L4BlockModel", signable_block))
else:
raise exceptions.InvalidNodeLevel(
f"Node level {self.level} not implemented yet")