コード例 #1
0
        // issuerPrivateKey must be set using setIssuerPrivateKey() before calling this method
        public FirstIssuanceMessageComposite getFirstMessage(string[] attributesParam, IssuerParametersComposite ipc, int numberOfTokensParam, string sessionID, byte[] hd)
        {
            /*
             *  token issuance - generate first message
             */

            cOut.write("Issuing U-Prove tokens - generate first message, issuer side");

            VerifySessionId(sessionID);
            try
            {
                // specify the attribute values agreed to by the Issuer and Prover
                int      numberOfAttributes = attributesParam.Length;
                byte[][] attributes         = new byte[numberOfAttributes][];
                for (int i = 0; i < numberOfAttributes; i++)
                {
                    attributes[i] = encoding.GetBytes(attributesParam[i]);
                }

                IssuerParameters ip = ConvertUtils.convertIssuerParametersComposite(ipc, sessionDB[sessionID]);
                byte[]           issuerPrivateKey = sessionDB[sessionID].privateKey;
                if (issuerPrivateKey == null)
                {
                    cOut.write("Issuer side, issuerPrivateKey is null. Did you forget to add the issuer private key for the given sessionKey?");
                    return(null);
                }
                BigInteger             bi   = new BigInteger(1, issuerPrivateKey);
                IssuerKeyAndParameters ikap = new IssuerKeyAndParameters(bi, ip);

                // setup the issuer and generate the first issuance message

                GroupElement hdG = ip.Gq.CreateGroupElement(hd);

                Issuer issuer = new Issuer(ikap, numberOfTokensParam, attributes, null, hdG);

                // Store the issuer in issuersDictionary using the sessionKey as key
                sessionDB[sessionID].issuer = issuer;

                FirstIssuanceMessage fi = issuer.GenerateFirstMessage();

                // Convert FirstIssuanceMessage members to serializable FirstIssuanceMessageComposite
                FirstIssuanceMessageComposite fic = ConvertUtils.convertFirstIssuanceMessage(fi);

                // Add the sessionKey to FirstIssuanceMessageComposite
                fic.SessionKey = sessionID;

                return(fic);
            }
            catch (Exception e)
            {
                cOut.write(e.ToString());
                DebugUtils.DebugPrint(e.StackTrace.ToString());
            }

            return(null);
        }
コード例 #2
0
    public static FirstIssuanceMessage convertFirstIssuanceMessageComposite(FirstIssuanceMessageComposite fic, IssuerParameters ip)
    {
      GroupElement[] geArray1 = new GroupElement[fic.SigmaA.Length];
      for (int i = 0; i < fic.SigmaA.Length; i++)
      {
        geArray1[i] = ip.Gq.CreateGroupElement(fic.SigmaA[i]);
      }

      GroupElement[] geArray2 = new GroupElement[fic.SigmaB.Length];
      for (int i = 0; i < fic.SigmaB.Length; i++)
      {
        geArray2[i] = ip.Gq.CreateGroupElement(fic.SigmaB[i]);
      }

      FirstIssuanceMessage fi = new FirstIssuanceMessage(ip.Gq.CreateGroupElement(fic.SigmaZ), geArray1, geArray2);
      return fi;
    }
コード例 #3
0
ファイル: ConvertUtils.cs プロジェクト: Eurodocs/p2abcengine
        public static FirstIssuanceMessage convertFirstIssuanceMessageComposite(FirstIssuanceMessageComposite fic, IssuerParameters ip)
        {
            GroupElement[] geArray1 = new GroupElement[fic.SigmaA.Length];
            for (int i = 0; i < fic.SigmaA.Length; i++)
            {
                geArray1[i] = ip.Gq.CreateGroupElement(fic.SigmaA[i]);
            }

            GroupElement[] geArray2 = new GroupElement[fic.SigmaB.Length];
            for (int i = 0; i < fic.SigmaB.Length; i++)
            {
                geArray2[i] = ip.Gq.CreateGroupElement(fic.SigmaB[i]);
            }

            FirstIssuanceMessage fi = new FirstIssuanceMessage(ip.Gq.CreateGroupElement(fic.SigmaZ), geArray1, geArray2);

            return(fi);
        }
コード例 #4
0
ファイル: ConvertUtils.cs プロジェクト: Eurodocs/p2abcengine
        public static FirstIssuanceMessageComposite convertFirstIssuanceMessage(FirstIssuanceMessage fi)
        {
            FirstIssuanceMessageComposite fic = new FirstIssuanceMessageComposite();

            byte[][] byteArray1 = new byte[fi.sigmaA.Length][];
            for (int i = 0; i < byteArray1.Length; i++)
            {
                byteArray1[i] = fi.sigmaA[i].GetEncoded();
            }

            byte[][] byteArray2 = new byte[fi.sigmaB.Length][];
            for (int i = 0; i < byteArray2.Length; i++)
            {
                byteArray2[i] = fi.sigmaB[i].GetEncoded();
            }

            fic.SigmaA = byteArray1;
            fic.SigmaB = byteArray2;
            fic.SigmaZ = fi.sigmaZ.GetEncoded();

            return(fic);
        }
コード例 #5
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    public static FirstIssuanceMessageComposite convertFirstIssuanceMessage(FirstIssuanceMessage fi)
    {
      FirstIssuanceMessageComposite fic = new FirstIssuanceMessageComposite();

      byte[][] byteArray1 = new byte[fi.sigmaA.Length][];
      for (int i = 0; i < byteArray1.Length; i++)
      {
        byteArray1[i] = fi.sigmaA[i].GetEncoded();
      }

      byte[][] byteArray2 = new byte[fi.sigmaB.Length][];
      for (int i = 0; i < byteArray2.Length; i++)
      {
        byteArray2[i] = fi.sigmaB[i].GetEncoded();
      }

      fic.SigmaA = byteArray1;
      fic.SigmaB = byteArray2;
      fic.SigmaZ = fi.sigmaZ.GetEncoded();

      return fic;

    }
コード例 #6
0
        public SecondIssuanceMessageComposite getSecondMessage(string[] attributesParam, IssuerParametersComposite ipc, int numberOfTokensParam, FirstIssuanceMessageComposite firstMessage, string sessionID)
        {
            /*
             *  token issuance - generate second message
             */

            cOut.write("Issuing U-Prove tokens - generate second message, prover side");
            VerifySessionId(sessionID);

            try
            {
                string tokenInformationParam  = null;
                string proverInformationParam = null;

                // specify the attribute values agreed to by the Issuer and Prover
                int      numberOfAttributes = attributesParam.Length;
                byte[][] attributes         = new byte[numberOfAttributes][];
                for (int i = 0; i < numberOfAttributes; i++)
                {
                    attributes[i] = encoding.GetBytes(attributesParam[i]);
                }

                // specify the special field values
                byte[] tokenInformation  = (tokenInformationParam == null) ? new byte[] { } : encoding.GetBytes(tokenInformationParam);
                byte[] proverInformation = (proverInformationParam == null) ? new byte[] { } : encoding.GetBytes(proverInformationParam);

                // specify the number of tokens to issue
                int numberOfTokens = numberOfTokensParam;

                IssuerParameters ip = ConvertUtils.convertIssuerParametersComposite(ipc, sessionDB[sessionID]);

                // Convert serializable FirstIssuanceMessageComposite members to FirstIssuanceMessage
                FirstIssuanceMessage fi = ConvertUtils.convertFirstIssuanceMessageComposite(firstMessage, ip);

                // setup the prover and generate the second issuance message
                Prover prover = new Prover(ip, numberOfTokens, attributes, tokenInformation, proverInformation, sessionDB[sessionID].deviceManager.GetDevice());

                // Store the prover in proversDictionary using the sessionKey as key
                sessionDB[sessionID].prover = prover;

                SecondIssuanceMessage sm = prover.GenerateSecondMessage(fi);

                // Convert SecondIssuanceMessage members to serializable SecondIssuanceMessageComposite
                SecondIssuanceMessageComposite smc = ConvertUtils.convertSecondIssuanceMessage(sm);

                // Add the sessionKey to SecondIssuanceMessageComposite
                smc.SessionKey = sessionID;

                return(smc);
            }
            catch (Exception e)
            {
                cOut.write(e.ToString());
                DebugUtils.DebugPrint(e.StackTrace.ToString());
            }

            return(null);
        }
コード例 #7
0
    public SecondIssuanceMessageComposite getSecondMessage(string[] attributesParam, IssuerParametersComposite ipc, int numberOfTokensParam, FirstIssuanceMessageComposite firstMessage, string sessionID)
    {
      /*
       *  token issuance - generate second message
       */

      cOut.write("Issuing U-Prove tokens - generate second message, prover side");
      VerifySessionId(sessionID);

      try
      {
        string tokenInformationParam = null;
        string proverInformationParam = null;

        // specify the attribute values agreed to by the Issuer and Prover
        int numberOfAttributes = attributesParam.Length;
        byte[][] attributes = new byte[numberOfAttributes][];
        for (int i = 0; i < numberOfAttributes; i++)
        {
          attributes[i] = encoding.GetBytes(attributesParam[i]);
        }

        // specify the special field values
        byte[] tokenInformation = (tokenInformationParam == null) ? new byte[] { } : encoding.GetBytes(tokenInformationParam);
        byte[] proverInformation = (proverInformationParam == null) ? new byte[] { } : encoding.GetBytes(proverInformationParam);

        // specify the number of tokens to issue
        int numberOfTokens = numberOfTokensParam;

        IssuerParameters ip = ConvertUtils.convertIssuerParametersComposite(ipc, sessionDB[sessionID]);

        // Convert serializable FirstIssuanceMessageComposite members to FirstIssuanceMessage
        FirstIssuanceMessage fi = ConvertUtils.convertFirstIssuanceMessageComposite(firstMessage, ip);

        // setup the prover and generate the second issuance message
        Prover prover = new Prover(ip, numberOfTokens, attributes, tokenInformation, proverInformation, sessionDB[sessionID].deviceManager.GetDevice());

        // Store the prover in proversDictionary using the sessionKey as key
        sessionDB[sessionID].prover = prover;

        SecondIssuanceMessage sm = prover.GenerateSecondMessage(fi);

        // Convert SecondIssuanceMessage members to serializable SecondIssuanceMessageComposite
        SecondIssuanceMessageComposite smc = ConvertUtils.convertSecondIssuanceMessage(sm);

        // Add the sessionKey to SecondIssuanceMessageComposite
        smc.SessionKey = sessionID;

        return smc;

      }
      catch (Exception e)
      {
        cOut.write(e.ToString());
        DebugUtils.DebugPrint(e.StackTrace.ToString());
      }

      return null;
    }