france-ehealth-certificates

This library provides a quick and easy interface to verify COVID-19 certificates generated in France.

Your bugfix and pull request contribution are always welcomed.

Installation and Usage

You can install france-ehealth-certificates using npm:

$ npm install france-ehealth-certificates

Vaccination certificates

Signature verification

const fhc = require('france-ehealth-certificaces');

let vaccination = new fhc.Vaccination("DC04FR0000011E6D1E6DL101FRL0THEOULE SUR MER\u001dL1JEAN PAUL\u001dL231051962L3COVID-19\u001dL4J07BX03\u001dL5COMIRNATY PFIZER/BIONTECH\u001dL6COMIRNATY PFIZER/BIONTECH\u001dL71L82L901032021LACO\u001f32T2SI2RUMPDLBHAFSBDF2CUE7GI4NR5WC3NSBEU6AZ7QZJZCPMCTXTVIDZAKEYO7237SQ2ZPOCMZKG7U3Q2LIMPPVJMA7TQAAKC5DY");
let isVerified = false;
// This method will throw an error if you use an invalid key.
isVerified = vaccination.verifySignature("-----BEGIN PUBLIC KEY-----MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEqY8NfM1igIiTvsTUNuedGDSh1uAB1w8cTNzNnZ4v4in3JAUU6N3AypjQx0QMnMSShJoPvac/w5L02grgf4TCPA==-----END PUBLIC KEY-----");
// This method will always return a boolean without throwing.
isVerified = vaccination.tryVerifySignature("-----BEGIN PUBLIC KEY-----MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEqY8NfM1igIiTvsTUNuedGDSh1uAB1w8cTNzNnZ4v4in3JAUU6N3AypjQx0QMnMSShJoPvac/w5L02grgf4TCPA==-----END PUBLIC KEY-----");

2D-DOC is signed using ECDSA keys.

Read certificate fields

Field id | Field content | Object property | Example ---------------------------|---------------------------------|-----------------|---------------- L0 | Patient last name | lastname | THEOULE SUR MER L1 | Patient first name | firstname | JEAN PAUL L2 | Patient birth date | birthdate | 31/05/1962 L3 | Disease name | disease | COVID-19 L4 | Preventive agent | preventiveAgent | J07BX03 L5 | Vaccine name | vaccine | COMIRNATY PFIZER/BIONTECH L6 | Vaccine maker name | vaccineMaker | COMIRNATY PFIZER/BIONTECH L7 | Current number of injections | nbDoseTaken | 1 L8 | Required number of injections | nbDoseExpected | 2 L9 | Last date of injection | lastDoseDate | 01/03/2021 LA | Current vaccination cycle state | state | CO

LA field values :

• CO : Incomplete vaccination cycle
• TE : Full vaccination cycle

Data used in this example is a sample available on ANTS website.

Sanitary certificates

Signature verification

const fhc = require('france-ehealth-certificaces');

let sanitary = new fhc.Sanitary("DC04FR00000113371337B201FRF0CORRINE\u001dF1BERTHIER\u001dF206121965F3FF4000\u001dF5XF6200620131200\u001fWZR5Y3AIRAFBIMKWLHSYX4BXNMELEVA3AXVL5IKZDX444F3A44VWXY2FKEWS4JUEOWLTSZ2MSMVW3NZ3LWO5FZKNLKVOMQT37LHV4II");
let isVerified = false;
// This method will throw an error if you use an invalid key.
isVerified = sanitary.verifySignature("-----BEGIN PUBLIC KEY-----MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEqY8NfM1igIiTvsTUNuedGDSh1uAB1w8cTNzNnZ4v4in3JAUU6N3AypjQx0QMnMSShJoPvac/w5L02grgf4TCPA==-----END PUBLIC KEY-----");
// This method will always return a boolean without throwing.
isVerified = sanitary.tryVerifySignature("-----BEGIN PUBLIC KEY-----MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEqY8NfM1igIiTvsTUNuedGDSh1uAB1w8cTNzNnZ4v4in3JAUU6N3AypjQx0QMnMSShJoPvac/w5L02grgf4TCPA==-----END PUBLIC KEY-----");

2D-DOC is signed using ECDSA keys.

Read certificate fields

Field id | Field content | Object property | Example --------------------------|---------------------------------|------------------|---------------- F0 | Patient first name | firstname | CORRINE F1 | Patient last name | lastname | BERTHIER F2 | Patient birth date | birthdate | 31/05/1962 F3 | Patient gender | gender | F F4 | Analysis code | analysisCode | 000 F5 | Analysis result | analysisResult | X F6 | Analysis datetime | analysisDatetime | 20/06/2013 12:00

F3 field values :

• M : Male
• F : Female
• U : Unknown

F4 codes are available on LOINC website.

F5 field values :

• P : Positive
• N : Negative
• I : Undetermined
• X : Non-compliant sample

Data used in this example is a sample available on ANTS website.

2D-DOC Header fields

Field | Object property | Example ----------------------------------------|-------------------------|--------- 2D-DOC implementation version | dcVersion | 04 Certification authority id | dcAuthorityId | FR00 Certificate id | dcCertificateId | 0001 Document issue date | dcDocumentDate | 4/5/2013 Signature creation date | dcDocumentSignatureDate | 4/5/2013 Document type id | dcDocumentTypeId | B2 Document perimeter id | dcDocumentPerimeterId | 01 Document country (ISO-3166-Alpha2) | dcDocumentCountry | FR

2D-DOC Message

Field | Object property | Value ----------|-----------------|--------- Message | message | Header + Body - Signature Header | header | Header Body | body | Body Signature | signature | Signature

Signature is the raw value from the 2D-DOC. This value is still base32 (RFC 4648) encoded.

F.A.Q

Does this library validate the French regulations for events access ?

No. This library only provides features to read and verify a COVID-19 certificates (Vaccination & Sanitary (RT-PCR)).

You need to implement French regulations on your side.

Do it work with European certificates ?

No. European certificates use another format of certificates.

You can find more information here.

Where can I find the public keys for signature verification?

Almost a challenge, but you can find them inside "TousAntiCovid" app source code.

Links

• ANTS 2D-DOC documentation
• LOINC website (analysis code)
• ISO 3166 COUNTRY CODES
• Base32 RFC 4648
• Pass sanitaire
• European eHealth network
• TousAntiCovid GitLab

Licence

MIT License

Copyright (c) 2021 Florian Pisani

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.