Complex.bin |link| Direct

# Assume header at idx magic, version, crc, d_off, d_len = struct.unpack("<IIIII", raw[idx:idx+20]) print(f"Magic: magic:#x, Version: version:#x") print(f"Data offset: d_off, Length: d_len")

$ file complex.bin data $ xxd complex.bin | head -1 00000000: 434f 4d50 0100 0000 1c00 0000 2000 0000 COMP........ ... complex.bin

| Offset | Size (bytes) | Field | Description | |--------|--------------|-------|-------------| | 0x00 | 4 | Magic | 0x434F4D50 ("COMP") | | 0x04 | 4 | Version | e.g., 0x00010001 | | 0x08 | 4 | Header CRC32 | | | 0x0C | 4 | Data offset | from start of file | | 0x10 | 4 | Data length | | | 0x14 | 4 | Flags | bit 0 = encrypted, bit 1 = compressed | | 0x18 | 8 | Reserved | | | 0x20 | variable | Payload | | import struct with open("complex.bin", "rb") as f: header = f.read(0x20) magic, ver, crc, data_off, data_len, flags = struct.unpack("<IIIIII", header[:24]) # Assume header at idx magic, version, crc,

#!/usr/bin/env python3 import sys, struct, zlib, binascii def parse_complex_bin(path): with open(path, "rb") as f: raw = f.read() # Assume header at idx magic