def test_l1block_signing_hashing(self):
block = make_l1_block()
sig = crypto.sign_l1_block(blake2b, secp256k1, key, block)
self.assertEqual(
sig,
"MEUCIQD9CaNsrMVCF75kuZFLZxbLhfv+CPJm1VO/aMecBAL01AIgUotuERB38vNzM4A2emuWTwTAVPxoALngsrld1A2qEvk="
)
sig = crypto.sign_l1_block(sha256, secp256k1, key, block)
self.assertEqual(
sig,
"MEUCIQDjh8wpWg7NzkfqfSfVaCITXBQWp9ZsYDz+JFqEumLgXwIgLeohzgIQF6rUDN3cT7ft4wB8LKyZMrzpV66907o7gdw="
)
sig = crypto.sign_l1_block(sha3_256, secp256k1, key, block)
self.assertEqual(
sig,
"MEQCIHt4Pk7bv+b3B2byjFwHDg9QezFfEMfB97RheamjQZqeAiBjmCOseeIzvHYfObJB4NhLVxvt+oRV4vYwQV+a4ye+5w=="
)
block_hash, nonce = crypto.pow_l1_block(blake2b, block)
self.assertEqual(block_hash,
"AByAk2FJJSyay0mb5jG6Zmtw08ZKN2M9TahZ95+6Ec0=")
self.assertEqual(nonce, 328)
block_hash, nonce = crypto.pow_l1_block(sha256, block)
self.assertEqual(block_hash,
"AL+iuhHcC51x065CbYCR+0LchibuF8x98SgEi+WW52g=")
self.assertEqual(nonce, 246)
block_hash, nonce = crypto.pow_l1_block(sha3_256, block)
self.assertEqual(block_hash,
"AG2Rlpw0bNSz3q5DJx/wOk4i3fiNfVi3P6D52sn7bhY=")
self.assertEqual(nonce, 509)
def sign_block(self, signable_block: "model.BlockModel") -> str:
"""Sign a block with this class' keys
Args:
block: BlockModel to sign
Returns:
Base64 encoded string of the block signature
Raises:
exceptions.InvalidNodeLevel when invalid level on self
RuntimeError when no private key is set on self
"""
if self.priv is None:
raise RuntimeError("No private key has been set for signing")
if self.level == 1:
return crypto.sign_l1_block(self.hash, self.encryption, self.priv,
signable_block)
elif self.level == 2:
return crypto.sign_l2_block(self.hash, self.encryption, self.priv,
signable_block)
elif self.level == 3:
return crypto.sign_l3_block(self.hash, self.encryption, self.priv,
signable_block)
elif self.level == 4:
return crypto.sign_l4_block(self.hash, self.encryption, self.priv,
signable_block)
elif self.level == 5:
return crypto.sign_l5_block(self.hash, self.encryption, self.priv,
signable_block)
else:
raise exceptions.InvalidNodeLevel(
f"Node level {self.level} not implemented yet")
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))