https://github.com/depau/nfc-st-srx

Libnfc tool to read ST SRx tags
https://github.com/depau/nfc-st-srx

libnfc nfc rfid sri512 srix4k srx st

Last synced: about 1 month ago
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Libnfc tool to read ST SRx tags

• Host: GitHub
• URL: https://github.com/depau/nfc-st-srx
• Owner: depau
• License: gpl-3.0
• Created: 2019-07-02T20:29:51.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2020-09-02T09:39:37.000Z (over 4 years ago)
• Last Synced: 2025-04-12T05:38:39.935Z (about 1 month ago)
• Topics: libnfc, nfc, rfid, sri512, srix4k, srx, st
• Language: C
• Size: 24.4 KB
• Stars: 9
• Watchers: 1
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Libnfc ST SRx reading/writing tool

Tool to read/write ST SRx tags. Only tested with SRIX4K tags, your mileage with SRI512 tags may vary.

## Building

Requires `libnfc` (discovered with pkg-config) and CMake.

```bash

mkdir build

cd build

cmake ..

make

```

## Usage

```txt

usage: ./nfc_st_srx [-h] [-v] [-w | -d] [-t x4k|512] [-f FILE]

Options:

  -h         Show this help message

  -v         Verbose - print transceived messages

  -w         Write dump instead of reading

  -d         Dry run - check for potential irreversible changes instead of writing

  -f FILE    Dump (write) memory content to (from) FILE

  -f -       Dump (write) memory content to stdout (from stdin) (default)

  -t x4k|512 Select SRIX4K or SRI512 tag type. Default is SRIX4K

```

## Note on writing tags

Compliant ST SRx tags have some blocks that, once changed, cannot be changed back to their original value.

Before writing a tag, make sure you're aware of this.

I implemented a "dry run" check feature which reads the tag and compares it with the dump to see if writing the dump

would cause irreversible changes.

However, I would advise you not to trust it as it's not been heavily tested.