public static ThirdIssuanceMessage convertThirdIssuanceMessageComposite(ThirdIssuanceMessageComposite tic)
{
BigInteger[] biArray = new BigInteger[tic.SigmaR.Length];
for (int i = 0; i < biArray.Length; i++)
{
biArray[i] = new BigInteger(1, tic.SigmaR[i]);
}
ThirdIssuanceMessage tm = new ThirdIssuanceMessage(biArray);
return(tm);
}
public static ThirdIssuanceMessageComposite convertThirdIssuanceMessage(ThirdIssuanceMessage tim)
{
ThirdIssuanceMessageComposite timc = new ThirdIssuanceMessageComposite();
byte[][] byteArray1 = new byte[tim.sigmaR.Length][];
for (int i = 0; i < byteArray1.Length; i++)
{
byte[] tmp = tim.sigmaR[i].ToByteArray();
byteArray1[i] = tmp;
}
timc.SigmaR = byteArray1;
return(timc);
}
public List <UProveKeyAndTokenComposite> generateTokens(ThirdIssuanceMessageComposite thirdMessage, string sessionID)
{
/*
* token issuance - generate tokens.
*/
cOut.write("Issuing U-Prove tokens - generate tokens, prover side");
VerifySessionId(sessionID);
try
{
// Convert serializable ThirdIssuanceMessageComposite members to ThirdIssuanceMessage.
ThirdIssuanceMessage tm = ConvertUtils.convertThirdIssuanceMessageComposite(thirdMessage);
// Retrieve correct Prover instance from proversDictionary for the given sessionKey.
if (sessionDB.ContainsKey(sessionID))
{
Prover prover = sessionDB[sessionID].prover;
// generate the tokens.
UProveKeyAndToken[] upkt = prover.GenerateTokens(tm);
// Serialize them.
cOut.write("Generating tokens...");
List <UProveKeyAndTokenComposite> tokens = new List <UProveKeyAndTokenComposite>();
foreach (UProveKeyAndToken t in upkt)
{
byte[] bigInt = t.PrivateKey.ToByteArray();
UProveKeyAndTokenComposite keyAndTokenComposite = new UProveKeyAndTokenComposite();
keyAndTokenComposite.PrivateKey = bigInt;
keyAndTokenComposite.Token = ConvertUtils.convertUProveToken(t.Token);
tokens.Add(keyAndTokenComposite);
}
return(tokens);
}
}
catch (Exception e)
{
cOut.write(e.ToString());
DebugUtils.DebugPrint(e.StackTrace.ToString());
}
return(null);
}
public ThirdIssuanceMessageComposite getThirdMessage(SecondIssuanceMessageComposite secondMessage, string sessionID)
{
/*
* token issuance - generate third message
*/
cOut.write("Issuing U-Prove tokens - generate third message, issuer side");
VerifySessionId(sessionID);
try
{
// Convert serializable SecondIssuanceMessageComposite members to SecondIssuanceMessage
SecondIssuanceMessage si = ConvertUtils.convertSecondIssuanceMessageComposite(secondMessage);
// Get unique session key from SecondIssuanceMessageComposite for retrieving the correct Issuer instance from issuersDictionary
string sessionKey = secondMessage.SessionKey;
//VerifySessionId(sessionKey);
// Retrieve correct Issuer instance from issuersDictionary for the given sessionKey
if (sessionDB.ContainsKey(sessionID))
{
Issuer issuer = sessionDB[sessionID].issuer;
ThirdIssuanceMessage tim = issuer.GenerateThirdMessage(si);
// Convert ThirdIssuanceMessage members to serializable ThirdIssuanceMessageComposite
ThirdIssuanceMessageComposite timc = ConvertUtils.convertThirdIssuanceMessage(tim);
// Add the sessionKey to ThirdIssuanceMessageComposite
timc.SessionKey = sessionID;
return(timc);
}
}
catch (Exception e)
{
cOut.write(e.ToString());
DebugUtils.DebugPrint(e.StackTrace.ToString());
}
return(null);
}
public List<UProveKeyAndTokenComposite> generateTokens(ThirdIssuanceMessageComposite thirdMessage, string sessionID)
{
/*
* token issuance - generate tokens.
*/
cOut.write("Issuing U-Prove tokens - generate tokens, prover side");
VerifySessionId(sessionID);
try
{
// Convert serializable ThirdIssuanceMessageComposite members to ThirdIssuanceMessage.
ThirdIssuanceMessage tm = ConvertUtils.convertThirdIssuanceMessageComposite(thirdMessage);
// Retrieve correct Prover instance from proversDictionary for the given sessionKey.
if (sessionDB.ContainsKey(sessionID))
{
Prover prover = sessionDB[sessionID].prover;
// generate the tokens.
UProveKeyAndToken[] upkt = prover.GenerateTokens(tm);
// Serialize them.
cOut.write("Generating tokens...");
List<UProveKeyAndTokenComposite> tokens = new List<UProveKeyAndTokenComposite>();
foreach (UProveKeyAndToken t in upkt)
{
byte[] bigInt = t.PrivateKey.ToByteArray();
UProveKeyAndTokenComposite keyAndTokenComposite = new UProveKeyAndTokenComposite();
keyAndTokenComposite.PrivateKey = bigInt;
keyAndTokenComposite.Token = ConvertUtils.convertUProveToken(t.Token);
tokens.Add(keyAndTokenComposite);
}
return tokens;
}
}
catch (Exception e)
{
cOut.write(e.ToString());
DebugUtils.DebugPrint(e.StackTrace.ToString());
}
return null;
}
public static ThirdIssuanceMessage convertThirdIssuanceMessageComposite(ThirdIssuanceMessageComposite tic)
{
BigInteger[] biArray = new BigInteger[tic.SigmaR.Length];
for (int i = 0; i < biArray.Length; i++)
{
biArray[i] = new BigInteger(1, tic.SigmaR[i]);
}
ThirdIssuanceMessage tm = new ThirdIssuanceMessage(biArray);
return tm;
}
public static ThirdIssuanceMessageComposite convertThirdIssuanceMessage(ThirdIssuanceMessage tim)
{
ThirdIssuanceMessageComposite timc = new ThirdIssuanceMessageComposite();
byte[][] byteArray1 = new byte[tim.sigmaR.Length][];
for (int i = 0; i < byteArray1.Length; i++)
{
byte[] tmp = tim.sigmaR[i].ToByteArray();
byteArray1[i] = tmp;
}
timc.SigmaR = byteArray1;
return timc;
}