def mixed_case_checksum(data):
o = ""
checksum = keccak.Keccak256(data.hex().encode("ascii")).digest()
v = parse_256(checksum)
for i, c in enumerate(data.hex()):
if c in "0123456789":
o += c
else:
o += c.upper() if (v & (2**(255 - 4 * i))) else c.lower()
return "0x" + o
assert h.digest() == MD
else:
assert Squeezed.startswith(h.digest())
def process_katfile(fn, mkhasher):
data = {}
for f in open(fn):
if len(f.strip()) == 0 or f[0] == '#':
continue
lhs, rhs = f.strip().split(' = ', 1)
data[lhs] = rhs
if lhs in triggers:
if longinp in data:
process_kat_long(mkhasher, **data)
else:
process_kat_short(mkhasher, **data)
data = {}
def run_glob(pat, mkhasher):
for g in glob.glob(pat):
print ('Processing:', g)
process_katfile(g, mkhasher)
if __name__ == '__main__':
run_glob('KeccakKAT/*MsgKAT_0.txt', lambda: keccak.KeccakHash(1024, 576, 1024))
run_glob('KeccakKAT/*MsgKAT_224.txt', lambda: keccak.Keccak224())
run_glob('KeccakKAT/*MsgKAT_256.txt', lambda: keccak.Keccak256())
run_glob('KeccakKAT/*MsgKAT_384.txt', lambda: keccak.Keccak384())
run_glob('KeccakKAT/*MsgKAT_512.txt', lambda: keccak.Keccak512())
def private_eth_to_public(priv):
secret_key = parse_256(bytearray.fromhex(priv))
public_key = (ecdsa.generator_secp256k1 * secret_key).pair()
data = ser_256(public_key[0]) + ser_256(public_key[1])
keyhash = keccak.Keccak256(data).digest()
return mixed_case_checksum(keyhash[-20:])
def hwif_to_eth_account(hwif):
testnet, depth, parent_fingerprint, child_index, chain_code, secret_key, public_key = from_hwif(
hwif)
data = ser_256(public_key[0]) + ser_256(public_key[1])
keyhash = keccak.Keccak256(data).digest()
return mixed_case_checksum(keyhash[-20:])