def finish(self, keepUnlocked: int, existing: Merit) -> Block:
genesis: bytes = existing.blockchain.genesis
prev: BlockHeader = existing.blockchain.blocks[-1].header
diff: int = existing.blockchain.difficulty()
#Create the signatures for every packet/element.
signatures: List[Signature] = []
for packet in self.packets:
for holder in packet.holders:
verif: SignedVerification = SignedVerification(
packet.hash, holder)
verif.sign(holder, PrivateKey(holder))
signatures.append(verif.signature)
for element in self.elements:
signatures.append(signElement(element))
#Only add the Data Verification if:
#1) We're supposed to make sure Merit Holders are always Unlocked
#2) The last Block created a Data
#3) The Merit Holder has Merit.
if (keepUnlocked != 0) and (prev.last != genesis):
#Create the Data from the last Block.
blockData: Data = Data(genesis, prev.hash)
#Create Verifications for said Data with every Private Key.
#Ensures no one has their Merit locked.
#pylint: disable=unnecessary-comprehension
self.packets.append(VerificationPacket(blockData.hash, []))
for i in range(keepUnlocked):
if (
#Miners who are just being created don't have Merit.
((i == (keepUnlocked - 1)) and
(isinstance(self.minerID, PrivateKey)))
or (existing.state.balances[i] == 0)):
continue
self.packets[-1].holders.append(i)
verif: SignedVerification = SignedVerification(
blockData.hash, i)
verif.sign(i, PrivateKey(i))
signatures.append(verif.signature)
#Remove this packet if there's no holders.
if not self.packets[-1].holders:
del self.packets[-1]
#Set the aggregate.
aggregate = Signature.aggregate(signatures)
#Create the actual Block.
minerID: Union[bytes, int] = 0
if isinstance(self.minerID, int):
minerID = self.minerID
else:
minerID = self.minerID.toPublicKey().serialize()
result: Block = Block(
BlockHeader(
0, prev.hash,
BlockHeader.createContents(self.packets, self.elements),
len(self.packets), bytes(4),
BlockHeader.createSketchCheck(bytes(4), self.packets), minerID,
self.time), BlockBody(self.packets, self.elements, aggregate))
if isinstance(self.minerID, int):
result.mine(PrivateKey(self.minerID), diff)
else:
result.mine(self.minerID, diff)
return result
def EightyEightTest(
rpc: RPC
) -> None:
edPrivKey: ed25519.SigningKey = ed25519.SigningKey(b'\0' * 32)
edPubKey: ed25519.VerifyingKey = edPrivKey.get_verifying_key()
blsPrivKey: PrivateKey = PrivateKey(0)
blsPubKey: str = blsPrivKey.toPublicKey().serialize().hex()
file: IO[Any] = open("e2e/Vectors/Merit/BlankBlocks.json", "r")
blocks: List[Dict[str, Any]] = json.loads(file.read())
file.close()
merit: Merit = Merit()
dataFilter: SpamFilter = SpamFilter(5)
#Handshake with the node.
rpc.meros.liveConnect(merit.blockchain.blocks[0].header.hash)
rpc.meros.syncConnect(merit.blockchain.blocks[0].header.hash)
#Send the first Block.
block: Block = Block.fromJSON(blocks[0])
merit.blockchain.add(block)
rpc.meros.liveBlockHeader(block.header)
#Handle sync requests.
reqHash: bytes = bytes()
while True:
msg: bytes = rpc.meros.sync.recv()
if MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1 : 33]
if reqHash != block.header.hash:
raise TestError("Meros asked for a Block Body that didn't belong to the Block we just sent it.")
#Send the BlockBody.
rpc.meros.blockBody(block)
break
else:
raise TestError("Unexpected message sent: " + msg.hex().upper())
if MessageType(rpc.meros.live.recv()[0]) != MessageType.BlockHeader:
raise TestError("Meros didn't broadcast the Block Header it just added.")
#Create two Datas.
datas: List[Data] = [Data(bytes(32), edPubKey.to_bytes())]
datas.append(Data(datas[0].hash, b"Hello there! General Kenobi."))
for data in datas:
#Sign them and have them beat the spam filter.
data.sign(edPrivKey)
data.beat(dataFilter)
#Transmit them.
rpc.meros.liveTransaction(data)
#Verify both.
verifs: List[SignedVerification] = [
SignedVerification(datas[0].hash),
SignedVerification(datas[1].hash)
]
for verif in verifs:
verif.sign(0, blsPrivKey)
#Only transmit the second.
rpc.meros.signedElement(verifs[1])
sleep(0.5)
#Verify the block template has no verifications.
if bytes.fromhex(
rpc.call("merit", "getBlockTemplate", [blsPubKey])["header"]
)[36 : 68] != bytes(32):
raise TestError("Block template has Verification Packets.")
#Transmit the first signed verification.
rpc.meros.signedElement(verifs[0])
sleep(0.5)
#Verify the block template has both verifications.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate", [blsPubKey])
template["header"] = bytes.fromhex(template["header"])
packets: List[VerificationPacket] = [VerificationPacket(datas[0].hash, [0]), VerificationPacket(datas[1].hash, [0])]
if template["header"][36 : 68] != BlockHeader.createContents(packets):
raise TestError("Block template doesn't have both Verification Packets.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents(packets),
1,
template["header"][-43 : -39],
BlockHeader.createSketchCheck(template["header"][-43 : -39], packets),
0,
int.from_bytes(template["header"][-4:], byteorder="little")
),
BlockBody(
packets,
[],
Signature.aggregate([verifs[0].signature, verifs[1].signature])
)
)
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
if block.body.serialize(
block.header.sketchSalt,
len(packets)
) != bytes.fromhex(template["body"]):
raise TestError("Failed to recreate the body.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
rpc.call(
"merit",
"publishBlock",
[
template["id"],
(
template["header"] +
block.header.proof.to_bytes(4, byteorder="little") +
block.header.signature +
block.body.serialize(block.header.sketchSalt, len(packets))
).hex()
]
)
verifyBlockchain(rpc, merit.blockchain)
def TElementTest(rpc: RPC) -> None:
merit: Merit = Merit()
blsPrivKey: PrivateKey = PrivateKey(0)
blsPubKey: str = blsPrivKey.toPublicKey().serialize().hex()
#Handshake with the node.
rpc.meros.liveConnect(merit.blockchain.blocks[0].header.hash)
rpc.meros.syncConnect(merit.blockchain.blocks[0].header.hash)
#Send the first Block.
block: Block
with open("e2e/Vectors/Merit/BlankBlocks.json", "r") as file:
block = Block.fromJSON(json.loads(file.read())[0])
merit.blockchain.add(block)
rpc.meros.liveBlockHeader(block.header)
rpc.meros.handleBlockBody(block)
if MessageType(rpc.meros.live.recv()[0]) != MessageType.BlockHeader:
raise TestError(
"Meros didn't broadcast the Block Header it just added.")
#Create and transmit a DataDifficulty.
dataDiff: SignedDataDifficulty = SignedDataDifficulty(0, 0, 0)
dataDiff.sign(0, blsPrivKey)
rpc.meros.signedElement(dataDiff)
sleep(1.5)
#Verify the block template has the DataDifficulty.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate",
{"miner": blsPubKey})
template["header"] = bytes.fromhex(template["header"])
if template["header"][36:68] != BlockHeader.createContents([], [dataDiff]):
raise TestError("Block template doesn't have the Data Difficulty.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents([], [dataDiff]),
0,
template["header"][-43:-39],
BlockHeader.createSketchCheck(template["header"][-43:-39], []),
0,
int.from_bytes(template["header"][-4:], byteorder="little"),
), BlockBody([], [dataDiff], dataDiff.signature))
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
#Publish it.
rpc.call(
"merit", "publishBlock", {
"id":
template["id"],
"header": (template["header"] +
block.header.proof.to_bytes(4, byteorder="little") +
block.header.signature).hex()
})
#Create and transmit a new DataDifficulty.
dataDiff = SignedDataDifficulty(3, 0, 0)
dataDiff.sign(0, blsPrivKey)
rpc.meros.signedElement(dataDiff)
sleep(1.5)
#Verify the block template has a MeritRemoval.
#Thanks to implicit Merit Removals, this just means it has the new difficulty.
template = rpc.call("merit", "getBlockTemplate", {"miner": blsPubKey})
template["header"] = bytes.fromhex(template["header"])
if template["header"][36:68] != BlockHeader.createContents([], [dataDiff]):
raise TestError("Block template doesn't have the Merit Removal.")
#Mine the Block.
block = Block(
BlockHeader(
0, block.header.hash, BlockHeader.createContents([], [dataDiff]),
0, template["header"][-43:-39],
BlockHeader.createSketchCheck(template["header"][-43:-39], []), 0,
int.from_bytes(template["header"][-4:], byteorder="little")),
BlockBody([], [dataDiff], dataDiff.signature))
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
rpc.call(
"merit", "publishBlock", {
"id":
template["id"],
"header": (template["header"] +
block.header.proof.to_bytes(4, byteorder="little") +
block.header.signature).hex()
})
verifyBlockchain(rpc, merit.blockchain)
def TElementTest(
rpc: RPC
) -> None:
file: IO[Any] = open("e2e/Vectors/Merit/BlankBlocks.json", "r")
blocks: List[Dict[str, Any]] = json.loads(file.read())
file.close()
merit: Merit = Merit()
blsPrivKey: PrivateKey = PrivateKey(0)
blsPubKey: str = blsPrivKey.toPublicKey().serialize().hex()
#Handshake with the node.
rpc.meros.liveConnect(merit.blockchain.blocks[0].header.hash)
rpc.meros.syncConnect(merit.blockchain.blocks[0].header.hash)
#Send the first Block.
block: Block = Block.fromJSON(blocks[0])
merit.blockchain.add(block)
rpc.meros.liveBlockHeader(block.header)
#Handle sync requests.
reqHash: bytes = bytes()
while True:
msg: bytes = rpc.meros.sync.recv()
if MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1 : 33]
if reqHash != block.header.hash:
raise TestError("Meros asked for a Block Body that didn't belong to the Block we just sent it.")
rpc.meros.blockBody(block)
break
else:
raise TestError("Unexpected message sent: " + msg.hex().upper())
if MessageType(rpc.meros.live.recv()[0]) != MessageType.BlockHeader:
raise TestError("Meros didn't broadcast the Block Header it just added.")
#Create and transmit a DataDifficulty.
dataDiff: SignedDataDifficulty = SignedDataDifficulty(0, 0, 0)
dataDiff.sign(0, blsPrivKey)
rpc.meros.signedElement(dataDiff)
sleep(0.5)
#Verify the block template has the DataDifficulty.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate", [blsPubKey])
template["header"] = bytes.fromhex(template["header"])
if template["header"][36 : 68] != BlockHeader.createContents([], [dataDiff]):
raise TestError("Block template doesn't have the Data Difficulty.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents([], [dataDiff]),
1,
template["header"][-43 : -39],
BlockHeader.createSketchCheck(template["header"][-43 : -39], []),
0,
int.from_bytes(template["header"][-4:], byteorder="little"),
),
BlockBody([], [dataDiff], dataDiff.signature)
)
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
if block.body.serialize(block.header.sketchSalt) != bytes.fromhex(template["body"]):
raise TestError("Failed to recreate the body.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
#Publish it.
rpc.call(
"merit",
"publishBlock",
[
template["id"],
(
template["header"] +
block.header.proof.to_bytes(4, byteorder="little") +
block.header.signature +
block.body.serialize(block.header.sketchSalt)
).hex()
]
)
#Create and transmit a new DataDifficulty.
dataDiff = SignedDataDifficulty(3, 1, 0)
dataDiff.sign(0, blsPrivKey)
rpc.meros.signedElement(dataDiff)
sleep(0.5)
#Verify the block template has the DataDifficulty.
template = rpc.call("merit", "getBlockTemplate", [blsPubKey])
template["header"] = bytes.fromhex(template["header"])
if template["header"][36 : 68] != BlockHeader.createContents([], [dataDiff]):
raise TestError("Block template doesn't have the new Data Difficulty.")
#Create and transmit a new DataDifficulty reusing an existing nonce.
signatures: List[Signature] = [dataDiff.signature]
dataDiff = SignedDataDifficulty(4, 1, 0)
dataDiff.sign(0, blsPrivKey)
signatures.append(dataDiff.signature)
rpc.meros.signedElement(dataDiff)
sleep(0.5)
#Verify the block template has a MeritRemoval.
mr: MeritRemoval = MeritRemoval(
SignedDataDifficulty(3, 1, 0),
SignedDataDifficulty(4, 1, 0),
False
)
template = rpc.call("merit", "getBlockTemplate", [blsPubKey])
template["header"] = bytes.fromhex(template["header"])
if template["header"][36 : 68] != BlockHeader.createContents([], [mr]):
raise TestError("Block template doesn't have the Merit Removal.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents([], [mr]),
1,
template["header"][-43 : -39],
BlockHeader.createSketchCheck(template["header"][-43 : -39], []),
0,
int.from_bytes(template["header"][-4:], byteorder="little")
),
BlockBody([], [mr], Signature.aggregate(signatures))
)
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
if block.body.serialize(block.header.sketchSalt) != bytes.fromhex(template["body"]):
raise TestError("Failed to recreate the body.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
rpc.call(
"merit",
"publishBlock",
[
template["id"],
(
template["header"] +
block.header.proof.to_bytes(4, byteorder="little") +
block.header.signature +
block.body.serialize(block.header.sketchSalt)
).hex()
]
)
verifyBlockchain(rpc, merit.blockchain)
def EightyEightTest(rpc: RPC) -> None:
edPrivKey: Ristretto.SigningKey = Ristretto.SigningKey(b'\0' * 32)
edPubKey: bytes = edPrivKey.get_verifying_key()
blsPrivKey: PrivateKey = PrivateKey(0)
blsPubKey: str = blsPrivKey.toPublicKey().serialize().hex()
merit: Merit = Merit()
dataFilter: SpamFilter = SpamFilter(5)
#Handshake with the node.
rpc.meros.liveConnect(merit.blockchain.blocks[0].header.hash)
rpc.meros.syncConnect(merit.blockchain.blocks[0].header.hash)
#Send the first Block.
block: Block
with open("e2e/Vectors/Merit/BlankBlocks.json", "r") as file:
block = Block.fromJSON(json.loads(file.read())[0])
merit.blockchain.add(block)
rpc.meros.liveBlockHeader(block.header)
rpc.meros.handleBlockBody(block)
if MessageType(rpc.meros.live.recv()[0]) != MessageType.BlockHeader:
raise TestError(
"Meros didn't broadcast the Block Header it just added.")
#Create two Datas.
datas: List[Data] = [Data(bytes(32), edPubKey)]
datas.append(Data(datas[0].hash, b"Hello there! General Kenobi."))
for data in datas:
#Sign them and have them beat the spam filter.
data.sign(edPrivKey)
data.beat(dataFilter)
#Transmit them.
rpc.meros.liveTransaction(data)
#Verify both.
verifs: List[SignedVerification] = [
SignedVerification(datas[0].hash),
SignedVerification(datas[1].hash)
]
for verif in verifs:
verif.sign(0, blsPrivKey)
#Only transmit the second.
rpc.meros.signedElement(verifs[1])
sleep(1.5)
#Verify the block template has no verifications.
if bytes.fromhex(
rpc.call("merit", "getBlockTemplate",
{"miner": blsPubKey})["header"])[36:68] != bytes(32):
raise TestError("Block template has Verification Packets.")
#Transmit the first signed verification.
rpc.meros.signedElement(verifs[0])
sleep(1.5)
#Verify the block template has both verifications.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate",
{"miner": blsPubKey})
template["header"] = bytes.fromhex(template["header"])
packets: List[VerificationPacket] = [
VerificationPacket(datas[0].hash, [0]),
VerificationPacket(datas[1].hash, [0])
]
if template["header"][36:68] != BlockHeader.createContents(packets):
raise TestError(
"Block template doesn't have both Verification Packets.")
#Mine the Block.
block = Block(
BlockHeader(
0, block.header.hash, BlockHeader.createContents(packets),
len(packets), template["header"][-43:-39],
BlockHeader.createSketchCheck(template["header"][-43:-39],
packets), 0,
int.from_bytes(template["header"][-4:], byteorder="little")),
BlockBody(
packets, [],
Signature.aggregate([verifs[0].signature, verifs[1].signature])))
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
rpc.call(
"merit", "publishBlock", {
"id":
template["id"],
"header": (template["header"] +
block.header.proof.to_bytes(4, byteorder="little") +
block.header.signature).hex()
})
verifyBlockchain(rpc, merit.blockchain)
