/// <summary>
/// Generates the third issuance message.
/// </summary>
/// <param name="message">The second issuance message.</param>
/// <returnn>The third issuance message.</returnn>
public ThirdIssuanceMessage GenerateThirdMessage(SecondIssuanceMessage message)
{
if (state != State.First)
{
throw new InvalidOperationException("GenerateFirstMessage must be called first");
}
if (message.sigmaC.Length != numberOfTokens)
{
throw new ArgumentException("invalid sigmaC array length");
}
FieldZqElement[] sigmaR = new FieldZqElement[message.sigmaC.Length];
Group Gq = ikap.IssuerParameters.Gq;
FieldZq Zq = ikap.IssuerParameters.Zq;
for (int i = 0; i < message.sigmaC.Length; i++)
{
sigmaR[i] = message.sigmaC[i] * ikap.PrivateKey + w[i];
w[i] = Zq.Zero;
}
w = null;
state = State.Third;
return(new ThirdIssuanceMessage(sigmaR));
}
public static SecondIssuanceMessageComposite convertSecondIssuanceMessage(SecondIssuanceMessage sm)
{
SecondIssuanceMessageComposite smc = new SecondIssuanceMessageComposite();
byte[][] byteArray1 = new byte[sm.sigmaC.Length][];
for (int i = 0; i < byteArray1.Length; i++)
{
byteArray1[i] = sm.sigmaC[i].ToByteArray();
}
smc.SigmaC = byteArray1;
return smc;
}
public static SecondIssuanceMessage convertSecondIssuanceMessageComposite(SecondIssuanceMessageComposite sic)
{
BigInteger[] biArray = new BigInteger[sic.SigmaC.Length];
for (int i = 0; i < biArray.Length; i++)
{
biArray[i] = new BigInteger(1, sic.SigmaC[i]);
}
SecondIssuanceMessage si = new SecondIssuanceMessage(biArray);
return si;
}
private ThirdIssuanceMessageInfo HandleThirdMessageInfo(Issuer issuer, SecondIssuanceMessage secondMessage)
{
ThirdIssuanceMessageInfo thirdMessageInfo = new ThirdIssuanceMessageInfo();
thirdMessageInfo.ThirdMessage = issuer.GenerateThirdMessage(secondMessage);
return thirdMessageInfo;
}
/// <summary>
/// Generates the third issuance message.
/// </summary>
/// <param name="message">The second issuance message.</param>
/// <returnn>The third issuance message.</returnn>
public ThirdIssuanceMessage GenerateThirdMessage(SecondIssuanceMessage message)
{
if (state != State.First)
{
throw new InvalidOperationException("GenerateFirstMessage must be called first");
}
if (message.sigmaC.Length != numberOfTokens)
{
throw new ArgumentException("invalid sigmaC array length");
}
FieldZqElement[] sigmaR = new FieldZqElement[message.sigmaC.Length];
Group Gq = ikap.IssuerParameters.Gq;
FieldZq Zq = ikap.IssuerParameters.Zq;
for (int i = 0; i < message.sigmaC.Length; i++)
{
sigmaR[i] = message.sigmaC[i] * ikap.PrivateKey + w[i];
w[i] = Zq.Zero;
}
w = null;
state = State.Third;
return new ThirdIssuanceMessage(sigmaR);
}
