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https://github.com/trezor/trezor-firmware.git
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64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
from micropython import const
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from apps.common import HARDENED
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NEM_NETWORK_MAINNET = const(0x68)
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NEM_NETWORK_TESTNET = const(0x98)
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NEM_NETWORK_MIJIN = const(0x60)
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NEM_TRANSACTION_TYPE_TRANSFER = const(0x0101)
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NEM_TRANSACTION_TYPE_IMPORTANCE_TRANSFER = const(0x0801)
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NEM_TRANSACTION_TYPE_AGGREGATE_MODIFICATION = const(0x1001)
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NEM_TRANSACTION_TYPE_MULTISIG_SIGNATURE = const(0x1002)
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NEM_TRANSACTION_TYPE_MULTISIG = const(0x1004)
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NEM_TRANSACTION_TYPE_PROVISION_NAMESPACE = const(0x2001)
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NEM_TRANSACTION_TYPE_MOSAIC_CREATION = const(0x4001)
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NEM_TRANSACTION_TYPE_MOSAIC_SUPPLY_CHANGE = const(0x4002)
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NEM_MAX_DIVISIBILITY = const(6)
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NEM_MAX_SUPPLY = const(9000000000)
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NEM_SALT_SIZE = const(32)
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AES_BLOCK_SIZE = const(16)
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NEM_HASH_ALG = "keccak"
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NEM_PUBLIC_KEY_SIZE = const(32) # ed25519 public key
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NEM_LEVY_PERCENTILE_DIVISOR_ABSOLUTE = const(10000)
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NEM_MOSAIC_AMOUNT_DIVISOR = const(1000000)
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NEM_MAX_PLAIN_PAYLOAD_SIZE = const(1024)
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NEM_MAX_ENCRYPTED_PAYLOAD_SIZE = const(960)
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def get_network_str(network: int) -> str:
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if network == NEM_NETWORK_MAINNET:
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return "Mainnet"
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elif network == NEM_NETWORK_TESTNET:
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return "Testnet"
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elif network == NEM_NETWORK_MIJIN:
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return "Mijin"
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def check_path(path: list, network=None) -> bool:
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"""
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Validates derivation path to fit 44'/43'/a' or 44'/43'/a'/0'/0',
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where `a` is an account number. We believe the path should be
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44'/43'/a', but for compatibility reasons with NEM's NanoWallet
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we allow 44'/43'/a'/0'/0' as well.
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Testnet is also allowed: 44'/1'/a'{/0'/0'}
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"""
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length = len(path)
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if length != 3 and length != 5:
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return False
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if path[0] != 44 | HARDENED:
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return False
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if not (
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path[1] == 43 | HARDENED
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or (network == NEM_NETWORK_TESTNET and path[1] == 1 | HARDENED)
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):
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return False
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if path[2] < HARDENED or path[2] > 1000000 | HARDENED:
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return False
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if length == 5 and (path[3] != 0 | HARDENED or path[4] != 0 | HARDENED):
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return False
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return True
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