public FirstIssuanceMessageInfo FirstMessage(FirstIssuanceMessageSpec spec)
{
if (!issuerStore.HasValue(spec.IssuerID))
{
ApiArgumentFault fault = new ApiArgumentFault();
fault.Details = "Issuer with unique ID was found";
fault.Argument = "FirstIssuanceMessageSpec.IssuerID";
fault.ArgumentValue = spec.IssuerID;
throw new FaultException <ApiArgumentFault>(fault);
}
IssuerKeyAndParameters ikp = issuerStore.GetValue(spec.IssuerID);
IssuerProtocolParameters ipp = new IssuerProtocolParameters(ikp);
ipp.NumberOfTokens = spec.NumberOfTokens;
ipp.Attributes = ConvertToByteArray(spec.Attributes);
if (!String.IsNullOrWhiteSpace(spec.TokenInfomation))
{
ipp.TokenInformation = ExtensionMethods.ToByteArray(spec.TokenInfomation);
}
if (!String.IsNullOrWhiteSpace(spec.Gamma))
{
ipp.Gamma = ExtensionMethods.ToGroupElement(spec.Gamma, ikp.IssuerParameters);
}
if (!String.IsNullOrWhiteSpace(spec.DevicePublicKey))
{
ipp.DevicePublicKey = ExtensionMethods.ToGroupElement(spec.DevicePublicKey, ikp.IssuerParameters);
}
ipp.Validate();
Issuer issuer = ipp.CreateIssuer();
FirstIssuanceMessage firstMessage = issuer.GenerateFirstMessage();
FirstIssuanceMessageInfo ret = new FirstIssuanceMessageInfo();
ret.FirstMessage = firstMessage;
Guid issuerInstance = Guid.NewGuid();
ret.IssuerInstanceID = issuerInstance;
ret.FirstMessageState = issuer.ExportPostFirstMessageState();
issuerInstanceDB.TryAdd(issuerInstance, new IssuerInstanceData(issuer));
return(ret);
}
public void TestIssuerStateExport()
{
IssuerKeyAndParameters ikap;
IssuerProtocolParameters ipp;
ProverProtocolParameters ppp;
StaticTestHelpers.GenerateTestIssuanceParameters("test issuer params", "test spec", 3, true, 6, out ikap, out ipp, out ppp);
// generate test issuer parameters
Issuer issuer = ipp.CreateIssuer();
IssuerParameters ip = ikap.IssuerParameters;
Prover prover = ppp.CreateProver();
FirstIssuanceMessage msg1 = null;
SecondIssuanceMessage msg2 = null;
ThirdIssuanceMessage msg3 = null;
msg1 = issuer.GenerateFirstMessage();
PostFirstMessageState state = issuer.ExportPostFirstMessageState();
string serializedState = ikap.IssuerParameters.Serialize(state);
msg2 = prover.GenerateSecondMessage(msg1);
// make sure the original issuer is unusable
try
{
issuer.GenerateThirdMessage(msg2);
Assert.Fail();
}
catch (Exception)
{
// expected
}
// complete the issuance with a new issuer instance
Issuer issuer2 = new Issuer(ikap, ikap.IssuerParameters.Deserialize <PostFirstMessageState>(serializedState));
msg3 = issuer2.GenerateThirdMessage(msg2);
// make sure tokens are valid by completing the issuance
prover.GenerateTokens(msg3);
}