A collection of random and hastily hacked together scripts for investigating EU-DCC

Overview

Validation tools

This repository contains scripts that help you validate QR codes.

It's hacky, and a warning for Apple Silicon users: the dependencies I use are a mess on your platform. I've given up trying to get it working.

Initializing

First make sure that you have Python 3.9+ installed and working.

Secondly, install all the dependencies:

pip3 install -r requirements.txt

Thirdly, update trustlist.json using the response from the gateway.

No access to the gateway? Then you can use the German trust list:

https://de.dscg.ubirch.com/trustList/DSC/

Just remove the first line (it's a signature of the document).

validate_quality_assurance.py

This tool validates the encoding, schema and signature of all the Quality Assurance QR codes.

The QA repository can be found here:

https://github.com/eu-digital-green-certificates/dcc-quality-assurance

It has the following arguments, both of which are optional and have sensible defaults:

--repo 'path/to/dcc-quality-assurance'
--countries 'NL,DE,SE'

validate_hcert.py

This tool validates the encoding, schema and signature of all the hcert string. It reads the hcerts from std-in, one line per hcert, and validates in serial.

Example (unix-likes)

cat examples/hcert-examples.txt | python3 validate_hcert.py

Example (windows)

type examples\hcert-examples.txt | python validate_hcert.py

qr_to_hcert.py

This little tool converts a QR into a hcert string and dumps that to std-out.

Now you can do this to validate a QR code:

python qr_to_hcert.py examples/VAC.png | python validate_hcert.py

hcert_to_qr.py

Takes QRs from std:in; for each line, generates a QR. Dumps all QRs to std:out as base64. The last QR created is saved as "my.png" in the current folder

cat examples/hcert.txt | python hcert_to_qr.py

print_payload_hcert.py

Takes QRs from std:in; for each line, unpacks hcert and dumps all of the output to std:out.

cat examples/hcert.txt | python print_payload_hcert.py

print_payload_hcert.py

Takes a QR, parses it, unpacks hcert and dumps all of the output to std:out.

python print_payload_qr.py --file my.png
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