Function decrypter

Lib/zipfile/__init__.py:737–746

Decrypt a bytes object.

(data)

        update_keys(p)

    def decrypter(data):
        """Decrypt a bytes object."""
        result = bytearray()
        append = result.append
        for c in data:
            k = key2 | 2
            c ^= ((k * (k^1)) >> 8) & 0xFF
            update_keys(c)
            append(c)
        return bytes(result)

    return decrypter