@pathcheck/eddsa-jxt-sdk
v0.0.3
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Verifiable QR SDK for W3C Vaccination Credentials with JSON-XT
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Verifiable QR SDK for EDDSA on JSON-XT Credentials
JavaScript Implementation of W3C Verifiable QR Credentials with EDDSA and minimization to a QR code with JSON-XT.
Install
npm install @pathcheck/eddsa-jxt-sdk --saveUsage
1. Generating Keys
Generate private and public keys with the provided script:
npm explore @pathcheck/eddsa-jxt-sdk -- npm run-script keys <YOUR_DOMAIN> <YOUR_KEY_NAME> <YOUR_CONTROLLER_NAME>Example:
npm explore @pathcheck/eddsa-jxt-sdk -- npm run-script keys PCF.PW 1A12 WEB1Returns:
/*******************************************************************************
Here are your SECRET keys. Key this private and use it to sign new packages.
*******************************************************************************/
{
'@context': [
'https://www.w3.org/ns/did/v1',
'https://w3id.org/security/suites/ed25519-2020/v1'
],
id: 'did:web:PCF.PW:1A12#WEB',
controller: 'did:web:PCF.PW:1A12',
type: 'Ed25519VerificationKey2020',
privateKeyMultibase: 'z4SnSYUVkioEPtzbeZ8wr8QJumzoLztf1gukRAFf7e4SrH3xWYj4mvFLQK1V6rDqHhFoyj2yA3ZSAcgZqYEmdNNKr',
publicKeyMultibase: 'zEzZ1wbzTHS232pKov6nfz38g5tkdtZ5d9ndCoaf9yG8G'
}
/***************************************************************************************************
Here are your PUBLIC DID document. Save this part as a .json and upload it to PCF.PW/1A10/did.json
****************************************************************************************************/
{
'@context': [
'https://www.w3.org/ns/did/v1',
'https://w3id.org/security/suites/ed25519-2020/v1'
],
id: 'did:web:PCF.PW:1A12',
type: 'Ed25519VerificationKey2020',
verificationMethod: [
{
'@context': [
"https://www.w3.org/ns/did/v1",
"https://w3id.org/security/suites/ed25519-2020/v1"
],
id: 'did:web:PCF.PW:1A12#WEB',
type: 'Ed25519VerificationKey2020',
controller: 'did:web:PCF.PW:1A12',
publicKeyMultibase: 'zEzZ1wbzTHS232pKov6nfz38g5tkdtZ5d9ndCoaf9yG8G'
}
],
authentication: [ 'did:web:PCF.PW:1A12#WEB' ],
assertionMethod: [ 'did:web:PCF.PW:1A12#WEB' ],
capabilityDelegation: [ 'did:web:PCF.PW:1A12#WEB' ],
capabilityInvocation: [ 'did:web:PCF.PW:1A12#WEB' ]
}2. Uploading Public Keys
Copy the second segment (PUBLIC DID DOCUMENT) as a JSON file to your domain/controllerName/did.json
{
"@context": [
"https://www.w3.org/ns/did/v1",
"https://w3id.org/security/suites/ed25519-2020/v1"
],
"id": "did:web:PCF.PW:1A12",
"type": "Ed25519VerificationKey2020",
"verificationMethod": [
{
"@context": [
"https://www.w3.org/ns/did/v1",
"https://w3id.org/security/suites/ed25519-2020/v1"
],
"id": "did:web:PCF.PW:1A12#WEB",
"type": "Ed25519VerificationKey2020",
"controller": "did:web:PCF.PW:1A12",
"publicKeyMultibase": "zEzZ1wbzTHS232pKov6nfz38g5tkdtZ5d9ndCoaf9yG8G"
}
],
"authentication": [ "did:web:PCF.PW:1A12#WEB" ],
"assertionMethod": [ "did:web:PCF.PW:1A12#WEB" ],
"capabilityDelegation": [ "did:web:PCF.PW:1A12#WEB" ],
"capabilityInvocation": [ "did:web:PCF.PW:1A12#WEB" ]
}The DID:WEB Resolver will point to that address (e.g. http://pcf.pw/1A12/did.json) to download your public keys and verify the package.
3. Preparing to Sign
With the keys:
const keyPair = {
'@context': [
'https://www.w3.org/ns/did/v1',
'https://w3id.org/security/suites/ed25519-2020/v1'
],
id: 'did:web:PCF.PW:1A12#WEB',
controller: 'did:web:PCF.PW:1A12',
type: 'Ed25519VerificationKey2020',
privateKeyMultibase: 'z4SnSYUVkioEPtzbeZ8wr8QJumzoLztf1gukRAFf7e4SrH3xWYj4mvFLQK1V6rDqHhFoyj2yA3ZSAcgZqYEmdNNKr',
publicKeyMultibase: 'zEzZ1wbzTHS232pKov6nfz38g5tkdtZ5d9ndCoaf9yG8G'
};And a JSON-LD Payload (We are using EU's Digital COVID Certificate, version 1.2.0, as an example)
const TEST_PAYLOAD = {
"@context": [
"https://www.w3.org/2018/credentials/v1",
"https://w3id.org/dgc/v1",
],
type: ["VerifiableCredential"],
issuer: "did:web:PCF.PW:1A12",
issuanceDate: "2021-05-18T16:06:06Z",
credentialSubject: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCCertificate",
personalInformation: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCSubject",
familyName: "d'Arsøns - van Halen",
givenName: "François-Joan",
stdFamilyName: "DARSONS<VAN<HALEN",
stdGivenName: "FRANCOIS<JOAN",
birthDate: "2009-02-28",
},
proofOfRecovery: [
{
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCProofOfRecovery",
id: "urn:uvci:01:NL:LSP/REC/1289821",
issuerName: "Ministry of VWS",
countryOfTest: "NL",
infectionInformation: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCInfectionInformation",
diseaseRecoveredFrom: "840539006",
dateFirstPositive: "2021-04-21",
validFrom: "2021-05-01",
validUntil: "2021-10-21",
},
},
],
proofOfVaccination: [
{
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCProofOfVaccination",
id: "urn:uvci:01:NL:PlA8UWS60Z4RZXVALl6GAZ",
issuerName: "Ministry of VWS",
countryOfVaccination: "NL",
vaccinationInformation: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCVaccinationInformation",
diseaseProtectedFrom: "840539006",
prophylaxis: "1119349007",
dateOfVaccination: "2021-05-05",
dose: 1,
totalDoses: 2,
marketingAuthHolder: "ORG-100030215",
medicinalProductName: "EU/1/20/1528",
},
},
{
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCProofOfVaccination",
id: "urn:uvci:01:NL:ATS342XDYS358FDFH3GTK5",
issuerName: "Ministry of VWS",
countryOfVaccination: "NL",
vaccinationInformation: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCVaccinationInformation",
diseaseProtectedFrom: "840539006",
prophylaxis: "1119349007",
dateOfVaccination: "2021-05-25",
dose: 2,
totalDoses: 2,
marketingAuthHolder: "ORG-100030215",
medicinalProductName: "EU/1/20/1528",
},
},
],
proofOfCovidTest: [
{
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCProofOfCovidTest",
id: "urn:uvci:01:NL:GGD/81AAH16AZ",
issuerName: "Ministry of VWS",
countryOfTestAdminstration: "NL",
testInformation: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCTestInformation",
diseaseTestedFrom: "840539006",
testName: "COVID PCR",
testManufacturer: "1232",
testType: "LP217198-3",
sampleCollectionDateTime: "2021-02-13T14:20:00Z",
testResult: "260415000",
testCenter: "GGD Fryslân, L-Heliconweg",
},
},
{
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCProofOfCovidTest",
id: "urn:uvci:01:NL:GGD/23BBS36BC",
issuerName: "Ministry of VWS",
countryOfTestAdminstration: "NL",
testInformation: {
"@context": ["https://w3id.org/dgc/v1"],
type: "DGCTestInformation",
diseaseTestedFrom: "840539006",
testName: "NAAT TEST",
testManufacturer: "1343",
testType: "LP6464-4",
sampleCollectionDateTime: "2021-04-13T14:20:00Z",
testResult: "260373001",
testCenter: "GGD Fryslân, L-Heliconweg",
},
},
],
},
};Call the signAndPack function to create the URI for the QR Code:
const {signAndPack, unpackAndVerify} = require('@pathcheck/eddsa-jxt-sdk');
const qrUri = await signAndPack(TEST_PAYLOAD, keyPair);And call the unpack and verify to convert the URI into the payload:
const jsonld = await unpackAndVerify(qrUri);Development
npm installTest
npm test