/// <summary>
/// creates the second message to the received first message from the issuer
/// </summary>
/// <param name="devicePublicKey">if the tokens are hard token protected, this is
/// the public key of that device</param>
/// <returns>SecondMessage as json string or if there was a failure, an empty string</returns>
public string GenerateSecondMessage(GroupElement devicePublicKey = null)
{
try
{
LogService.Log(LogService.LogType.Info, "IssuingProver - GenerateSecondMessage called");
// initialize prover protocol
ProverProtocolParameters ppp = new ProverProtocolParameters(IP);
ppp.Attributes = ByteAttributes = ci.ConvertAttributeListToBase64ByteArray(Attributes);
ppp.NumberOfTokens = numberOfTokens;
ppp.TokenInformation = ti != null ? ti : null;
ppp.ProverInformation = pi;
if (devicePublicKey != null)
{
ppp.DevicePublicKey = devicePublicKey;
}
prover = ppp.CreateProver();
string secondMessageJson = IP.Serialize <SecondIssuanceMessage>(
prover.GenerateSecondMessage(IP.Deserialize <FirstIssuanceMessage>(firstMessageJson)));
LogService.Log(LogService.LogType.Info, "IssuingProver - SecondMessage created: " + secondMessageJson);
return(secondMessageJson);
}
catch (Exception e)
{
LogService.Log(LogService.LogType.Error, "IssuingProver - Error during second message generation.", e);
throw new CommunicationException("IssuingProver - Error during second message generation.", e);
}
}
/// <summary>
/// Creates the token out of the received third message
/// </summary>
/// <param name="thirdMessage">third message as json</param>
/// <param name="skipTokenValidation">if the hard token validation should get
/// skipped - testing mode only
/// </param>
public void GenerateTokens(string thirdMessage, bool skipTokenValidation = false)
{
try
{
LogService.Log(LogService.LogType.Info, "IssuingProver - GenerateTokens called");
KeyAndToken = prover.GenerateTokens(IP.Deserialize <ThirdIssuanceMessage>(thirdMessage), skipTokenValidation);
LogService.Log(LogService.LogType.Info, "IssuingProver - token successfull generated");
}
catch (Exception e)
{
LogService.Log(LogService.LogType.Info, "IssuingProver - Error during token generation.", e);
throw new CommunicationException("IssuingProver - Error during token generation.", e);
}
}