private void Parse(byte[] bytes)
{
CBORObject cborObject;
try
{
cborObject = CBORObject.DecodeFromBytes(bytes);
}
catch
{
throw new ArgumentException("Could not parse MTB. Byte array could not be decoded to CBOR Object");
}
if (cborObject.Type == CBORType.Map)
{
var dict = cborObject.ConvertToDictionary();
if (dict["v"] == null || !dict["v"].GetByteString().SequenceEqual(mtbVersion))
throw new ArgumentException("Could not parse MTB. Only container version 1 is supported.");
var p = dict["p"].GetByteString();
// TODO: Refactor
var signedData = new SignedData(p);
if (signedData.SignatureType == SignatureType.Issuer)
IssuerSignedTicketBundle = new IssuerSignedTicketBundle(p);
else
IssuerSignedTicketBundle = new IssuerSignedTicketBundle(signedData.Payload);
}
else
{
throw new ArgumentException("Could not parse MtbContainer. Decoded bytes not of expected type CBOR Map");
}
}
public void GetBytes_Returns_SameSequence_As_Parsed_Data()
{
var bytes = Convert.FromBase64String(issuerSignedTicketBundleB64);
var signedBundle = new IssuerSignedTicketBundle(bytes);
var result = signedBundle.GetBytes();
Assert.That(result.SequenceEqual(bytes), Is.True);
}
/// <summary>
/// Creates a signed MTB with one participant object.
/// Participant object is expected to be serialized to JSON-array;
/// [{participantTicketObject-1}, {participantTicketObject-2}, ... ]
/// </summary>
/// <param name="jsonString">Participant object serialized to JSON</param>
/// <param name="participantId">Participant id (PID) for Ticket Bundle map</param>
/// <returns>Signed MTB as byte[]</returns>
public byte[] CreateSigned(string jsonString, string participantId)
{
var participantObject = new ParticipantObject(jsonString);
var ticketBundle = new TicketBundle();
ticketBundle.ParticipantObjects.Add(participantId, participantObject);
var unSignedBundle = new IssuerSignedTicketBundle(ticketBundle);
var mtbContainer = new MtbContainer(unSignedBundle);
// Sign
var signedMtb = _service.Sign(mtbContainer);
return signedMtb.GetBytes();
}
public void Sign_Creates_a_MTB_with_valid_signature()
{
var ticketBundle = new TicketBundle();
var issuerTicketBundle = new IssuerSignedTicketBundle(ticketBundle);
var mtb = new MtbContainer(issuerTicketBundle);
var signed = service.Sign(mtb);
var signedBundle = signed.IssuerSignedTicketBundle;
var validationResult = service.Verify(mtb);
Assert.That(signedBundle.Signature, Is.Not.Null);
Assert.That(validationResult, Is.True);
}
public void SetUp()
{
keyRepo = new TestKeyRepository();
service = new SignatureService(keyRepo);
// Create a bundle
var signatureHeader = new IssuerSignatureHeader(header);
var ticketBundle = new TicketBundle(payload);
issuerSignedTicketBundle = new IssuerSignedTicketBundle(ticketBundle);
issuerSignedTicketBundle.Header = signatureHeader;
issuerSignedTicketBundle.Signature = signature;
}
public void Sign_Creates_a_MTB_with_valid_header()
{
var ticketBundle = new TicketBundle();
var issuerTicketBundle = new IssuerSignedTicketBundle(ticketBundle);
var mtb = new MtbContainer(issuerTicketBundle);
var signed = service.Sign(mtb);
var signedBundle = signed.IssuerSignedTicketBundle;
Assert.That(signedBundle.Header, Is.Not.Null);
Assert.That(signedBundle.Header.alg, Is.EqualTo(SignatureAlgorithm.ES256));
Assert.That(signedBundle.Header.iid, Is.EqualTo(keyRepo.SigningIssuerId));
Assert.That(signedBundle.Header.kid, Is.EqualTo(keyRepo.SigningKeyId));
}
public MtbContainer(IssuerSignedTicketBundle issuerSignedTicketBundle)
{
IssuerSignedTicketBundle = issuerSignedTicketBundle;
}