def test_l1block_trust_verifying(self):
block = make_l1_block()
sig = crypto.sign_l1_block(blake2b, secp256k1, key, block)
block.proof = sig
block.scheme = "trust"
self.assertTrue(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
valid_block = copy.deepcopy(block)
block.dc_id = "forged"
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
block = copy.deepcopy(valid_block)
block.block_id = "forged"
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
block = copy.deepcopy(valid_block)
block.timestamp = "forged"
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
block = copy.deepcopy(valid_block)
block.prev_id = "forged"
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
block = copy.deepcopy(valid_block)
block.prev_proof = "forged=="
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
block = copy.deepcopy(valid_block)
block.stripped_transactions = ["some", "forged", "txns"]
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
block = copy.deepcopy(valid_block)
block.proof = "MEQCIF+o3DHBiTbpw8X6W4/yOuPF/FfANIiNnG0mFLgjBAjuAiAe/QAHN8ufmHMeRvHFItdrzVHFORGED4/msipzFORGED=="
self.assertFalse(crypto.verify_l1_block_trust(blake2b, secp256k1, key.pubkey, block))
def verify_block(self, block: "model.BlockModel") -> bool: # noqa: C901
"""Verify a block with this class' keys
Args:
block: BlockModel to verify
Returns:
Boolean if valid block (according to these keys)
Raises:
NotImplementedError when invalid scheme on self
"""
if self.scheme == SupportedSchemes.trust and self.pub is None:
RuntimeError(
"No public key has been set for verifying block signature")
if self.level == 1:
if self.scheme == SupportedSchemes.trust:
return crypto.verify_l1_block_trust(
self.hash, self.encryption, self.pub,
cast("l1_block_model.L1BlockModel", block))
elif self.scheme == SupportedSchemes.work:
return crypto.verify_l1_block_pow(
self.hash, cast("l1_block_model.L1BlockModel", block))
else:
raise NotImplementedError(
f"Proof scheme {self.scheme} not implemented")
elif self.level == 2:
if self.scheme == SupportedSchemes.trust:
return crypto.verify_l2_block_trust(
self.hash, self.encryption, self.pub,
cast("l2_block_model.L2BlockModel", block))
elif self.scheme == SupportedSchemes.work:
return crypto.verify_l2_block_pow(
self.hash, cast("l2_block_model.L2BlockModel", block))
else:
raise NotImplementedError(
f"Proof scheme {self.scheme} not implemented")
elif self.level == 3:
if self.scheme == SupportedSchemes.trust:
return crypto.verify_l3_block_trust(
self.hash, self.encryption, self.pub,
cast("l3_block_model.L3BlockModel", block))
elif self.scheme == SupportedSchemes.work:
return crypto.verify_l3_block_pow(
self.hash, cast("l3_block_model.L3BlockModel", block))
else:
raise NotImplementedError(
f"Proof scheme {self.scheme} not implemented")
elif self.level == 4:
if self.scheme == SupportedSchemes.trust:
return crypto.verify_l4_block_trust(
self.hash, self.encryption, self.pub,
cast("l4_block_model.L4BlockModel", block))
elif self.scheme == SupportedSchemes.work:
return crypto.verify_l4_block_pow(
self.hash, cast("l4_block_model.L4BlockModel", block))
else:
raise NotImplementedError(
f"Proof scheme {self.scheme} not implemented")
elif self.level == 5:
if self.scheme == SupportedSchemes.trust:
return crypto.verify_l5_block_trust(
self.hash, self.encryption, self.pub,
cast("l5_block_model.L5BlockModel", block))
else:
raise NotImplementedError(
f"Proof scheme {self.scheme} not implemented")
else:
raise exceptions.InvalidNodeLevel(
f"Node level {self.level} nonexistent")