ZIP format
G ZIP format
The credential file used to ensure data integrity is a
Byte order:
Overall zipfile format:
[Local file header + Compressed data [+ Extended local header]?]* [Central directory]*
[End of central directory record] Local file header:
Offset Length Contents
04 bytes Local file header signature (0x04034b50)
42 bytes Version needed to extract
62 bytes General purpose bit flag
82 bytes Compression method
102 bytes Last mod file time
122 bytes Last mod file date
144 bytes
184 bytes Compressed size (n)
224 bytes Uncompressed size
262 bytes Filename length (f)
282 bytes Extra field length (e) (f)bytes Filename
(e)bytes Extra field
| (n)bytes | Compressed data |
Extended | local header: | |
Offset | Length | Contents |
0 | 4 bytes | Extended Local file header signature (0x08074b50) |
Appendix G | 125 |