An Ethereum compatible backend for Godwoken rollup framework. It include generator and validator implementations.
- All op codes
- Value transfer
- pre-compiled contracts
- ecrecover
- sha256hash
- ripemd160hash
- dataCopy
- bigModExp
- bn256AddIstanbul
- bn256ScalarMulIstanbul
- bn256PairingIstanbul (performance issue)
- blake2F
header : [u8; 8] (header[0] = 0xff,
header[1] = 0xff,
header[2] = 0xff,
header[3..7] = "POLY"
header[7] = call_kind { 0: CALL, 3: CREATE })
gas_limit : u64 (little endian)
gas_price : u128 (little endian)
value : u128 (little endian)
input_size : u32 (little endian)
input_data : [u8; input_size] (input data)
Every polyjuice argument fields must been serialized one by one and put into godwoken RawL2Transaction.args for polyjuice to read. If the input_data have 56 bytes, then the serialized data size is 8 + 8 + 16 + 16 + 4 + 56 = 108 bytes.
code_hash: polyjuice_validator_type_script_hash
hash_type: type
args:
rollup_type_hash : [u8; 32]
sudt_id : u32 (little endian, the token id)
Polyjuice creator account is a godwoken account for creating polyjuice contract account. This account can only been created by meta contract, and the account id is used as the chain id in polyjuice. The sudt_id field in script args is the sudt token current polyjuice instance bind to.
code_hash: polyjuice_validator_type_script_hash
hash_type: type
args:
rollup_type_hash : [u8; 32]
creator_account_id : u32 (little endian, also chain id, and for reading 'sudt_id' from creator account script)
info_data_hash : [u8; 20] (The information to be hashed is depend on how the account been created: [normal, create2],
the 20 bytes value is keccak256(info_data)[12..])
info_content:
sender_address : [u8; 20] (the msg.sender: blake128(sender_script) + account id)
sender_nonce : u32
info_data: rlp_encode(sender_address, sender_nonce)
The polyjuice contract account created in polyjuice by CREATE call kind or op code.
info_data:
special_byte : u8 (value is '0xff', refer to ethereum)
sender_address : [u8; 20] (the msg.sender: blake128(sender_script) + account id)
create2_salt : [u8; 32] (create2 salt)
init_code_hash : [u8; 32] (keccak256(init_code))
The polyjuice contract account created in polyjuice by CREATE2 op code.
The address used in polyjuice are all godwoken short address, which is:
short_address = blake2b(script.as_slice())[0..20]
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