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Examples

Verifiable Credentials with JSON Web Tokens:

Example Verifiable Credential

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JWT Payload:

{
	"jti": "urn:uuid:a87bdfb8-a7df-4bd9-ae0d-d883133538fe",
	"sub": "did:sov:21tDAKCERh95uGgKbJNHYp",
	"iss": "did:sov:1yvXbmgPoUm4dl66D7KhyD",
	"nbf": 1560711419,
	"exp": 1560797819,
	"vc": {
		"@context": ["https://www.w3.org/2018/credentials/v1", "https://trafi.fi/credentials/v1"],
		"type": ["VerifiableCredential", "DriversLicenseCredential"],
		"credentialSubject": {
			"driversLicense": {
				"licenseClass": "trucks"
			}
		}
	}
}

Example code (signing)

VerifiableCredential verifiableCredential = new VerifiableCredential();
verifiableCredential.getContext().add("https://trafi.fi/credentials/v1");
verifiableCredential.getType().add("DriversLicenseCredential");
verifiableCredential.setId("urn:uuid:a87bdfb8-a7df-4bd9-ae0d-d883133538fe");
verifiableCredential.setIssuer("did:sov:1yvXbmgPoUm4dl66D7KhyD");
verifiableCredential.setIssuanceDate(VerifiableCredential.DATE_FORMAT.parse("2019-06-16T18:56:59Z"));
verifiableCredential.setExpirationDate(VerifiableCredential.DATE_FORMAT.parse("2019-06-17T18:56:59Z"));

verifiableCredential.setCredentialSubject("did:sov:21tDAKCERh95uGgKbJNHYp");
LinkedHashMap<String, Object> jsonLdCredentialSubject = verifiableCredential.getJsonLdCredentialSubject();
LinkedHashMap<String, Object> jsonLdDriversLicense = new LinkedHashMap<String, Object> ();
jsonLdDriversLicense.put("licenseClass", "trucks");
jsonLdCredentialSubject.put("driversLicense", jsonLdDriversLicense);

JwtVerifiableCredential jwtVerifiableCredential = JwtVerifiableCredential.fromVerifiableCredential(verifiableCredential);

String jwtPayload = jwtVerifiableCredential.getPayload().toJson();
System.out.println(jwtPayload);

String jwtString = jwtVerifiableCredential.toJwt(AlgorithmIdentifiers.RSA_USING_SHA256, TestUtil.testRSAPrivateKey);
System.out.println(jwtString);

Example code (verifying)

JwtVerifiableCredential jwtVerifiableCredential = JwtVerifiableCredential.fromJwt(...JWT..., AlgorithmIdentifiers.RSA_USING_SHA256, TestUtil.testRSAPublicKey);

String jwtPayload = jwtVerifiableCredential.getPayload().toJson();
String jwtPayloadVerifiableCredential = jwtVerifiableCredential.getPayloadVerifiableCredential().toJsonString();
System.out.println(jwtPayload);
System.out.println(jwtPayloadVerifiableCredential);

VerifiableCredential verifiableCredential = jwtVerifiableCredential.toVerifiableCredential();
System.out.println(verifiableCredential.toJsonString());