public SecondIssuanceMessageInfo SecondMessage(SecondIssuanceMessageSpec spec)
{
if (spec.IssuerParameter == null)
{
ApiArgumentFault fault = new ApiArgumentFault();
fault.Details = "Issuer with unique ID was found";
fault.Argument = "IssuerSetupParametersSpec.ID";
fault.ArgumentValue = spec.IssuerParameter.Serialize();
throw new FaultException <ApiArgumentFault>(fault);
}
ProverProtocolParameters pProtoParam = new ProverProtocolParameters(spec.IssuerParameter);
pProtoParam.NumberOfTokens = spec.NumberOfTokens;
if (!String.IsNullOrWhiteSpace(spec.TokenInfomation))
{
pProtoParam.TokenInformation = ExtensionMethods.ToByteArray(spec.TokenInfomation);
}
if (!String.IsNullOrWhiteSpace(spec.Gamma))
{
pProtoParam.Gamma = ExtensionMethods.ToGroupElement(spec.Gamma, spec.IssuerParameter);
}
if (!String.IsNullOrWhiteSpace(spec.DevicePublicKey))
{
pProtoParam.DevicePublicKey = ExtensionMethods.ToGroupElement(spec.DevicePublicKey, spec.IssuerParameter);
}
if (!String.IsNullOrWhiteSpace(spec.ProverInfomation))
{
pProtoParam.ProverInformation = ExtensionMethods.ToByteArray(spec.ProverInfomation);
}
if (spec.RandomData != null)
{
pProtoParam.ProverRandomData = spec.RandomData;
}
if (spec.BatchSecurityLevel > 0)
{
pProtoParam.BatchValidationSecurityLevel = spec.BatchSecurityLevel;
}
pProtoParam.Validate();
Prover prover = pProtoParam.CreateProver();
SecondIssuanceMessage secondMessage = prover.GenerateSecondMessage(spec.FirstMessage);
PostSecondMessageState postSecondMessageState = prover.ExportPostSecondMessageState();
SecondIssuanceMessageInfo simInfo = new SecondIssuanceMessageInfo();
simInfo.PostSecondMessageState = postSecondMessageState;
simInfo.SecondMessage = secondMessage;
Guid issuerInstance = Guid.NewGuid();
simInfo.ProverInstanceID = issuerInstance;
proverInstanceDB.TryAdd(issuerInstance, new ProverInstanceData(prover));
return(simInfo);
}
public void TestProverStateExport()
{
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();
msg2 = prover.GenerateSecondMessage(msg1);
PostSecondMessageState state = prover.ExportPostSecondMessageState();
string serializedState = ip.Serialize(state);
// complete the issuance with a new prover instance
msg3 = issuer.GenerateThirdMessage(msg2);
Prover prover2 = new Prover(ip, ip.Deserialize <PostSecondMessageState>(serializedState));
prover2.GenerateTokens(msg3);
// make sure the original prover is unusable
try
{
prover.GenerateTokens(msg3);
Assert.Fail();
}
catch (Exception)
{
// expected
}
}