https://github.com/stapelberg/coronaqr

Go decoder and verifier for EU Digital COVID Certificate (EUDCC) QR code data
https://github.com/stapelberg/coronaqr

Last synced: about 2 months ago
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Go decoder and verifier for EU Digital COVID Certificate (EUDCC) QR code data

• Host: GitHub
• URL: https://github.com/stapelberg/coronaqr
• Owner: stapelberg
• License: apache-2.0
• Created: 2021-06-27T10:25:06.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-09-28T16:44:02.000Z (about 2 years ago)
• Last Synced: 2024-10-14T20:07:08.599Z (2 months ago)
• Language: Go
• Homepage:
• Size: 31.3 KB
• Stars: 169
• Watchers: 8
• Forks: 15
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Go Corona QR Code Decoder

[![Go Reference](https://pkg.go.dev/badge/github.com/stapelberg/coronaqr.svg)](https://pkg.go.dev/github.com/stapelberg/coronaqr)

This repository contains a decoder and verifier for EU Digital COVID Certificate

(EUDCC) QR code data, written in Go.

If you got vaccinated and want to know what is stored in the QR code, this

package (and example program) can answer that question!

Example usage:

```

go install github.com/stapelberg/coronaqr/cmd/coronadecode@latest

apt install curl zbar-tools

curl -sL https://github.com/eu-digital-green-certificates/dgc-testdata/raw/main/CH/png/1.png | \

	zbarimg --quiet --raw - | \

	coronadecode

```

(With older Go versions before 1.16, use `go get -u github.com/stapelberg/coronaqr/cmd/coronadecode` instead.)

## Verification

For cryptographic signature 🔐 verification to work, you need to obtain a trust

list from somewhere, i.e. a list of certificates that you deem suitable for

verification.

The [`trustlistmirror`

package](https://pkg.go.dev/github.com/stapelberg/coronaqr/trustlist/trustlistmirror)

implements loading the trust lists of the German, Austrian or French

governments, which each include all the certificates that are accepted EU-wide.

This is how you would select which trust list to use:

```

curl -sL https://github.com/eu-digital-green-certificates/dgc-testdata/raw/main/CH/png/1.png | \

        zbarimg --quiet --raw - | \

        coronadecode -verify -trustlist=trustlistmirror/at

```

## Compliance

This implementation passes the positive and negative interoperability tests ✅

of multiple countries provided in the

https://github.com/eu-digital-green-certificates/dgc-testdata/ repository.