mirror of
https://github.com/logos-blockchain/logos-execution-zone.git
synced 2026-05-14 03:59:30 +00:00
10 lines
330 B
Python
10 lines
330 B
Python
def iso7816_pad(data: bytes, block_size: int) -> bytes:
|
|
pad_len = block_size - (len(data) % block_size)
|
|
return data + b'\x80' + b'\x00' * (pad_len - 1)
|
|
|
|
|
|
def iso7816_unpad(padded: bytes) -> bytes:
|
|
if b'\x80' not in padded:
|
|
raise ValueError("Invalid ISO7816 padding")
|
|
return padded[:padded.rindex(b'\x80')]
|