def compress_public_key(uncompressed_public_key_bytes: bytes) -> bytes:
x, y = decode_public_key(uncompressed_public_key_bytes)
if y % 2 == 0:
prefix = b"\x02"
else:
prefix = b"\x03"
return prefix + pad32(int_to_big_endian(x))
def to_bytes(self):
return b''.join(
pad32(int_to_big_endian(value))
for value in self.rs
)
def encode_raw_public_key(raw_public_key: Tuple[int, int]) -> bytes:
left, right = raw_public_key
return b''.join((
pad32(int_to_big_endian(left)),
pad32(int_to_big_endian(right)),
))
def to_bytes(self) -> bytes:
vb = int_to_byte(self.v)
rb = pad32(int_to_big_endian(self.r))
sb = pad32(int_to_big_endian(self.s))
return b''.join((rb, sb, vb))