PWN Data Transfer JS

Feature

• Convert data to RDF
  • Google takeout
    • calendar(.ics) -- * .ics is a standard format, so it seems to be irrelevant to the provider
    • youtube watch history(.html)
  • Uber trip data(.csv)
• Create infra ss58 DID Set: for issue(sign) VC / SD-JWT
• Issue VC: issue the JSON-LD to signed VC
  • separation by period(day, month, quarter, semi-annual, yearly) (v0.2.0)
• Issue SD-JWT: issue the signed VC (or JSON of any kind) as SD-JWT. (v0.1.2)

Support Formats(updated at 23.12.28)

Provider	Data	File extension
google	calendar	.ics
google	youtube watch history	.html
uber	trip data	.csv

Working in progress

• Input VC data into PWN (API)

Usage

Init DID

infra did init. Set to module but can be returned as variable if you want

// seed: infra did seed (required)
const seed = '0x8c9971953c5c82a51e3ab0ec9a16ced7054585081483e2489241b5b059f5f3cf';
const didSet = await PwnDataInput.initDIDSet(seed);

Convert data to RDF(JSON-LD)

import { PeriodUnit } from './lib/interface';
// convert ical data to jsonld
// data:string data from calendar(.ics), youtube watch history(.html), uber trip data(.csv)
const data = fs.readFileSync(path.join('path/to/target', 'calendar.ics'), { encoding: 'utf-8'});
const icalJsonld = await PwnDataInput.convertRDF(data, 'ical', PeriodUnit.all, 'application/ld+json');

jsonld-signature (issue VC)

// vcId: vc identifier
const vcId = 'did:infra:space:15oF4uVJwmo4TdGW7VfQxNLavjCXviqxT9S1MgbjMNHr6Sp5';
const signedVC = await PwnDataInput.IssueCredential(vcId, 'ical', JSON.parse(icalJsonld));

Issue SD-JWT

const issuedSdjwt = await PwnDataInput.issueSdJwt(signedVC);
const decodedSdJwt = decodeSDJWT(issuedSdjwt);

More Information

See /example, src/__tests__ folders

Docs