KDE PIM/KItinerary/Koleje Mazowiekie: Difference between revisions
< KDE PIM | KItinerary
Created page with "== General Observation == * PDF contains a Code 128 1D code and a QR code * The 1D code contains the ticket number (CP \d+), which is also printed under the QR code * Both codes in the PDF are implemented as ungrouped individual rectangle paths, which currently failed to be recognized. * The QR code contains a base64 encoded payload * Content varies in size (87-89 after base64 decoding in the known samples) * Content seems byte-aligned * The content seems backwards!? =..." |
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| Line 32: | Line 32: | ||
| 14 || 1 || || || 0x00 | | 14 || 1 || || || 0x00 | ||
|- | |- | ||
| 15 || | | 15 || 12 || || || | ||
|- | |||
| 27 || 2 || uint16 LE || departure station code | |||
|- | |||
| 29 || 2 || uint16 LE || arrival station code | |||
|- | |- | ||
| 31 || 10 || string || passenger name || given/family name separated by '.', given name truncated to fit, string in reverse order!? | | 31 || 10 || string || passenger name || given/family name separated by '.', given name truncated to fit, string in reverse order!? | ||
Revision as of 14:41, 9 July 2023
General Observation
- PDF contains a Code 128 1D code and a QR code
- The 1D code contains the ticket number (CP \d+), which is also printed under the QR code
- Both codes in the PDF are implemented as ungrouped individual rectangle paths, which currently failed to be recognized.
- The QR code contains a base64 encoded payload
- Content varies in size (87-89 after base64 decoding in the known samples)
- Content seems byte-aligned
- The content seems backwards!?
Payload structure
| Offset | Size | Data Type | Meaning | Notes |
|---|---|---|---|---|
| 0 | 3 | 0x03 0x01 0x20 | ||
| 3 | 2 | "PC" (CP backwards, the prefix found in front of the ticket number) | ||
| 5 | 4 | uint32 LE | ticket number | |
| 9 | 2 | |||
| 10 | 1 | 0x00 | ||
| 11 | 1 | uint8 | the number printed after "OF:" in the upper right | |
| 12 | 1 | 0x00 | ||
| 13 | 1 | uint8 | number of passengers? | the number printed after "N:" in the upper right |
| 14 | 1 | 0x00 | ||
| 15 | 12 | |||
| 27 | 2 | uint16 LE | departure station code | |
| 29 | 2 | uint16 LE | arrival station code | |
| 31 | 10 | string | passenger name | given/family name separated by '.', given name truncated to fit, string in reverse order!? |
| 41 | varying | ASN.1 | signature |