causal / dgc
Library to decode Digital Green Certificates as defined by the eHealth Network
1.4
2021-09-08 07:52 UTC
Requires
- php: >= 7.2.0, <= 7.4.99
- ext-zlib: *
- cweagans/composer-patches: ^1.7
- firehed/cbor: ^0.1
README
DGC is a PHP library that decodes Digital Green Certificates. In short, it decodes COVID-19 certificates.
Install
Install with composer.
$ composer require causal/dgc
Usage
$decoder = new \Causal\DGC\Decoder(); // The string as embedded in the QR code of the certificate (e.g., you can use https://qrafter.com/) $input = 'HC1:NCFOXNYTSFDHJI89.O%26V$L.BUTRDUV...'; // Extract issuer, issuing date, expiring date, type of vaccine, manufacturer, etc. $data = $decoder->decodeFromQR($input);
{ 1: "DE", 4: 1643356073, 6: 1622316073, -260: { 1: { v: [ { ci: "URN:UVCI:01DE/IZ12345A/5CWLU12RNOB9RXSEOP6FG8#W", co: "DE", dn: 2, dt: "2021-05-29", is: "Robert Koch-Institut", ma: "ORG-100031184", mp: "EU/1/20/1507", sd: 2, tg: "840539006", vp: "1119349007" } ], dob: "1964-08-12", nam: { fn: "Mustermann", gn: "Erika", fnt: "MUSTERMANN", gnt: "ERIKA" }, ver: "1.0.0" } } }
You may then prettify the data so that they are more human-readable:
// Basically this returns the exact same data you read in the official Swiss app "Covid Cert" $humanReadableData = $decoder->prettify($data);
{ issuer: "DE", issuingDate: "2021-05-29T21:21:13+02:00", expiringDate: "2022-01-28T08:47:53+01:00", certificate: { type: "vaccination", person: { familyName: "Mustermann", givenName: "Erika", familyNameTransliterated: "MUSTERMANN", givenNameTransliterated: "ERIKA", dateOfBirth: "1964-08-12" }, info: { singleDoses: 2, diseaseOrAgentTargeted: "COVID-19", vaccineType: "SARS-CoV2 mRNA vaccine", product: "COVID-19 Vaccine Moderna", manufacturer: "Moderna Biotech Spain S.L.", date: "2021-05-29", country: "DE", issuer: "Robert Koch-Institut", id: "URN:UVCI:01DE/IZ12345A/5CWLU12RNOB9RXSEOP6FG8#W" } } }
Types of Certificates
Following types of certificates are supported:
- Vaccination certificate
- Test certificate
- Recovery certificate
Disclaimer
- There is currently NO CHECK of the digital signature (it is not clear at the moment whether public keys of the various issuers are available to anyone).
- Human-readable conversion is based on European data mapping on 2021/08/30.
- This library is provided as-is, use it at your own risk!
References
- https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates_v3_en.pdf
- https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates_dt-specifications_en.pdf
- https://covid-19-diagnostics.jrc.ec.europa.eu/devices/hsc-common-recognition-rat
License
The MIT License (MIT). Please see License File for more information.