KDE PIM/KItinerary/MAV Barcode
< KDE PIM | KItinerary
General Observation
- Uses PDF417 barcode format.
- Variable length.
- For domestic tickets only.
- No similarities with a known ERA format.
Outer Structure
- Two byte header, fixed 0x0403.
- Gzip-compressed payload using deflate compression, starting with the standard Gzip header 0x1f8b0800000000000000.
- 256 remaining bytes, high entropy and length suggest a cryptographic signature.
Payload Structure
Note: this is based on very few samples so far and thus isn't very reliable yet!
- Seems byte- rather than bit-aligned.
- String encoding is UTF-8.
- Number encoding seems big endian.
- Variable length, observed between 217 and 274 bytes.
- Content has a high amount of null bytes.
Layout
| Offset | Size | Data Type | Meaning | Notes |
|---|---|---|---|---|
| 0 | 17 | string | ticket number | printed as "CIV" on the PDF, numeric |
| 17 | 22 | ? | ? | |
| 39 | 45 | string | passenger name | null terminated |
| 84 | 4 | uint32 | passenger birth date | year * 10000 + month * 100 + day |
| 88 | 128 | ? | ? | |
| 216 | 17 | ? | ? | bytes 216 and following are only present on tickets with seat reservations |
| 233 | 5 | string | train number | null-terminated |
| 238 | 2 | ? | coach number? | numeric or string encoding, too few samples to be sure |
| 240 | 6 | numeric | seat number? | too few samples to be sure |
| 246 | 28 | null | ? | null bytes in all samples |
Missing/Suspected Information
- Station names are not included, but station codes might be. UIC station numbers (possibly without the country prefix) would be the obvious suspect, given the MÁV website uses those as well.
- If the train number is included, one would expect at least the day of travel to be included as well.
- Class: several candidate locations exist, but given it's small footprint we need a lot more samples to confirm one of those.