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A Smart Card Framework for .NET

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4.88/5 (102 votes)
15 May 2015CPOL8 min read 2.1M   145.1K   342  
Describes a framework to use the PCSC Smart Card API with .NET.
 
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Xml;
using System.Globalization;
using System.Text;

using GemCard;
using SmartCardPlayer;

namespace TestGemCard
{
    delegate void   EnableButtonDelegate(Button btn, bool state);

	/// <summary>
	/// MainForm of the Application
	/// </summary>
	public class MainForm : System.Windows.Forms.Form
    {
		private System.Windows.Forms.Button btnConnect;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button btnDisconnect;
		private System.Windows.Forms.Button btnTransmit;
		private System.Windows.Forms.StatusBar statusBar;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.StatusBarPanel statusBarPanel_Sw;
		private System.Windows.Forms.StatusBarPanel statusBarPanel_Info;
		private System.Windows.Forms.ComboBox comboApdu;
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.TextBox textData;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.TextBox textClass;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.TextBox textIns;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.TextBox textP1;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.TextBox textP2;
		private System.Windows.Forms.Label label7;
		private System.Windows.Forms.TextBox textLe;
		private System.Windows.Forms.Label label8;
		private System.Windows.Forms.TextBox textDOut;
		private System.Windows.Forms.Label label9;
		private System.Windows.Forms.ComboBox comboReader;

		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		private	CardBase	m_iCard = null;
		private	APDUPlayer	m_apduPlayer = null;
		private	APDUParam	m_apduParam = null;
        const string DefaultReader = "Gemplus USB Smart Card Reader 0";
        private TextBox txtboxATR;
        private Label label10;
		const	string	ApduListFile = "ApduList.xml";

		public MainForm()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			// Setup the panels
			statusBarPanel_Info.BorderStyle = StatusBarPanelBorderStyle.Sunken;
			statusBarPanel_Info.AutoSize = StatusBarPanelAutoSize.Spring;

			statusBarPanel_Sw.BorderStyle = StatusBarPanelBorderStyle.Raised;
			statusBarPanel_Sw.AutoSize = StatusBarPanelAutoSize.Spring;

			statusBar.ShowPanels = true;

            SelectICard();

			SetupReaderList();
			LoadApduList();

		}


		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.btnConnect = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.btnDisconnect = new System.Windows.Forms.Button();
            this.btnTransmit = new System.Windows.Forms.Button();
            this.statusBar = new System.Windows.Forms.StatusBar();
            this.statusBarPanel_Sw = new System.Windows.Forms.StatusBarPanel();
            this.statusBarPanel_Info = new System.Windows.Forms.StatusBarPanel();
            this.comboApdu = new System.Windows.Forms.ComboBox();
            this.label2 = new System.Windows.Forms.Label();
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.label9 = new System.Windows.Forms.Label();
            this.textDOut = new System.Windows.Forms.TextBox();
            this.label8 = new System.Windows.Forms.Label();
            this.textLe = new System.Windows.Forms.TextBox();
            this.label7 = new System.Windows.Forms.Label();
            this.textP2 = new System.Windows.Forms.TextBox();
            this.label6 = new System.Windows.Forms.Label();
            this.textP1 = new System.Windows.Forms.TextBox();
            this.label5 = new System.Windows.Forms.Label();
            this.textIns = new System.Windows.Forms.TextBox();
            this.label4 = new System.Windows.Forms.Label();
            this.textClass = new System.Windows.Forms.TextBox();
            this.label3 = new System.Windows.Forms.Label();
            this.textData = new System.Windows.Forms.TextBox();
            this.comboReader = new System.Windows.Forms.ComboBox();
            this.txtboxATR = new System.Windows.Forms.TextBox();
            this.label10 = new System.Windows.Forms.Label();
            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel_Sw)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel_Info)).BeginInit();
            this.groupBox1.SuspendLayout();
            this.SuspendLayout();
            // 
            // btnConnect
            // 
            this.btnConnect.Location = new System.Drawing.Point(11, 32);
            this.btnConnect.Name = "btnConnect";
            this.btnConnect.Size = new System.Drawing.Size(75, 23);
            this.btnConnect.TabIndex = 2;
            this.btnConnect.Text = "Connect";
            this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(8, 9);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(80, 20);
            this.label1.TabIndex = 4;
            this.label1.Text = "Reader name";
            // 
            // btnDisconnect
            // 
            this.btnDisconnect.Location = new System.Drawing.Point(92, 32);
            this.btnDisconnect.Name = "btnDisconnect";
            this.btnDisconnect.Size = new System.Drawing.Size(75, 23);
            this.btnDisconnect.TabIndex = 5;
            this.btnDisconnect.Text = "Disconnect";
            this.btnDisconnect.Click += new System.EventHandler(this.btnDisconnect_Click);
            // 
            // btnTransmit
            // 
            this.btnTransmit.Location = new System.Drawing.Point(336, 72);
            this.btnTransmit.Name = "btnTransmit";
            this.btnTransmit.Size = new System.Drawing.Size(75, 23);
            this.btnTransmit.TabIndex = 6;
            this.btnTransmit.Text = "Transmit";
            this.btnTransmit.Click += new System.EventHandler(this.btnTransmit_Click);
            // 
            // statusBar
            // 
            this.statusBar.Location = new System.Drawing.Point(0, 238);
            this.statusBar.Name = "statusBar";
            this.statusBar.Panels.AddRange(new System.Windows.Forms.StatusBarPanel[] {
            this.statusBarPanel_Sw,
            this.statusBarPanel_Info});
            this.statusBar.Size = new System.Drawing.Size(440, 24);
            this.statusBar.TabIndex = 7;
            // 
            // statusBarPanel_Sw
            // 
            this.statusBarPanel_Sw.Name = "statusBarPanel_Sw";
            // 
            // statusBarPanel_Info
            // 
            this.statusBarPanel_Info.Name = "statusBarPanel_Info";
            // 
            // comboApdu
            // 
            this.comboApdu.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.comboApdu.FormattingEnabled = true;
            this.comboApdu.Location = new System.Drawing.Point(120, 72);
            this.comboApdu.Name = "comboApdu";
            this.comboApdu.Size = new System.Drawing.Size(208, 21);
            this.comboApdu.TabIndex = 8;
            this.comboApdu.SelectedIndexChanged += new System.EventHandler(this.comboApdu_SelectedIndexChanged);
            // 
            // label2
            // 
            this.label2.Location = new System.Drawing.Point(20, 75);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(100, 21);
            this.label2.TabIndex = 9;
            this.label2.Text = "APDU Command";
            // 
            // groupBox1
            // 
            this.groupBox1.Controls.Add(this.label9);
            this.groupBox1.Controls.Add(this.textDOut);
            this.groupBox1.Controls.Add(this.label8);
            this.groupBox1.Controls.Add(this.textLe);
            this.groupBox1.Controls.Add(this.label7);
            this.groupBox1.Controls.Add(this.textP2);
            this.groupBox1.Controls.Add(this.label6);
            this.groupBox1.Controls.Add(this.textP1);
            this.groupBox1.Controls.Add(this.label5);
            this.groupBox1.Controls.Add(this.textIns);
            this.groupBox1.Controls.Add(this.label4);
            this.groupBox1.Controls.Add(this.textClass);
            this.groupBox1.Controls.Add(this.label3);
            this.groupBox1.Controls.Add(this.textData);
            this.groupBox1.Location = new System.Drawing.Point(16, 104);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(408, 128);
            this.groupBox1.TabIndex = 10;
            this.groupBox1.TabStop = false;
            this.groupBox1.Text = "APDU";
            // 
            // label9
            // 
            this.label9.Location = new System.Drawing.Point(272, 16);
            this.label9.Name = "label9";
            this.label9.Size = new System.Drawing.Size(88, 16);
            this.label9.TabIndex = 13;
            this.label9.Text = "Received Data";
            // 
            // textDOut
            // 
            this.textDOut.Location = new System.Drawing.Point(272, 32);
            this.textDOut.Multiline = true;
            this.textDOut.Name = "textDOut";
            this.textDOut.ReadOnly = true;
            this.textDOut.Size = new System.Drawing.Size(128, 88);
            this.textDOut.TabIndex = 12;
            // 
            // label8
            // 
            this.label8.Location = new System.Drawing.Point(136, 16);
            this.label8.Name = "label8";
            this.label8.Size = new System.Drawing.Size(56, 16);
            this.label8.TabIndex = 11;
            this.label8.Text = "Sent Data";
            // 
            // textLe
            // 
            this.textLe.Location = new System.Drawing.Point(32, 64);
            this.textLe.Name = "textLe";
            this.textLe.Size = new System.Drawing.Size(40, 20);
            this.textLe.TabIndex = 10;
            // 
            // label7
            // 
            this.label7.Location = new System.Drawing.Point(8, 64);
            this.label7.Name = "label7";
            this.label7.Size = new System.Drawing.Size(24, 23);
            this.label7.TabIndex = 9;
            this.label7.Text = "Le";
            // 
            // textP2
            // 
            this.textP2.Location = new System.Drawing.Point(104, 40);
            this.textP2.Name = "textP2";
            this.textP2.Size = new System.Drawing.Size(24, 20);
            this.textP2.TabIndex = 8;
            // 
            // label6
            // 
            this.label6.Location = new System.Drawing.Point(80, 40);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(24, 23);
            this.label6.TabIndex = 7;
            this.label6.Text = "P2";
            // 
            // textP1
            // 
            this.textP1.Location = new System.Drawing.Point(48, 40);
            this.textP1.Name = "textP1";
            this.textP1.Size = new System.Drawing.Size(24, 20);
            this.textP1.TabIndex = 6;
            // 
            // label5
            // 
            this.label5.Location = new System.Drawing.Point(8, 40);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(24, 23);
            this.label5.TabIndex = 5;
            this.label5.Text = "P1";
            // 
            // textIns
            // 
            this.textIns.Location = new System.Drawing.Point(104, 16);
            this.textIns.Name = "textIns";
            this.textIns.ReadOnly = true;
            this.textIns.Size = new System.Drawing.Size(24, 20);
            this.textIns.TabIndex = 4;
            // 
            // label4
            // 
            this.label4.Location = new System.Drawing.Point(80, 16);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(24, 23);
            this.label4.TabIndex = 3;
            this.label4.Text = "Ins";
            // 
            // textClass
            // 
            this.textClass.Location = new System.Drawing.Point(48, 16);
            this.textClass.Name = "textClass";
            this.textClass.ReadOnly = true;
            this.textClass.Size = new System.Drawing.Size(24, 20);
            this.textClass.TabIndex = 2;
            // 
            // label3
            // 
            this.label3.Location = new System.Drawing.Point(8, 16);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(40, 23);
            this.label3.TabIndex = 1;
            this.label3.Text = "Class";
            // 
            // textData
            // 
            this.textData.Location = new System.Drawing.Point(136, 32);
            this.textData.Multiline = true;
            this.textData.Name = "textData";
            this.textData.Size = new System.Drawing.Size(128, 88);
            this.textData.TabIndex = 0;
            // 
            // comboReader
            // 
            this.comboReader.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.comboReader.FormattingEnabled = true;
            this.comboReader.Location = new System.Drawing.Point(94, 6);
            this.comboReader.Name = "comboReader";
            this.comboReader.Size = new System.Drawing.Size(322, 21);
            this.comboReader.TabIndex = 12;
            this.comboReader.SelectedIndexChanged += new System.EventHandler(this.comboReader_SelectedIndexChanged);
            // 
            // txtboxATR
            // 
            this.txtboxATR.Location = new System.Drawing.Point(205, 34);
            this.txtboxATR.Name = "txtboxATR";
            this.txtboxATR.ReadOnly = true;
            this.txtboxATR.Size = new System.Drawing.Size(211, 20);
            this.txtboxATR.TabIndex = 13;
            // 
            // label10
            // 
            this.label10.AutoSize = true;
            this.label10.Location = new System.Drawing.Point(173, 37);
            this.label10.Name = "label10";
            this.label10.Size = new System.Drawing.Size(29, 13);
            this.label10.TabIndex = 14;
            this.label10.Text = "ATR";
            // 
            // MainForm
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(440, 262);
            this.Controls.Add(this.label10);
            this.Controls.Add(this.txtboxATR);
            this.Controls.Add(this.comboReader);
            this.Controls.Add(this.groupBox1);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.comboApdu);
            this.Controls.Add(this.statusBar);
            this.Controls.Add(this.btnTransmit);
            this.Controls.Add(this.btnDisconnect);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.btnConnect);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.Name = "MainForm";
            this.Text = "Smart card Exchange APDU";
            this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.MainForm_FormClosed);
            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel_Sw)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel_Info)).EndInit();
            this.groupBox1.ResumeLayout(false);
            this.groupBox1.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new MainForm());
		}

		private void btnConnect_Click(object sender, System.EventArgs e)
		{
			try
			{
				m_iCard.Connect((string) comboReader.SelectedItem, SHARE.Shared, PROTOCOL.T0orT1);

                try
                {
                    // Get the ATR of the card
                    byte[] atrValue = m_iCard.GetAttribute(SCARD_ATTR_VALUE.ATR_STRING);
                    txtboxATR.Text = ByteArrayToString(atrValue);
                }
                catch (Exception)
                {
                    txtboxATR.Text = "Cannot get ATR";
                }

				btnConnect.Enabled = false;
				btnDisconnect.Enabled = true;
				btnTransmit.Enabled = true;

				statusBarPanel_Info.Text = "Card connected";
			}
			catch(Exception ex)
			{
				btnConnect.Enabled = true;
				btnDisconnect.Enabled = false;
				btnTransmit.Enabled = false;

				statusBar.Text = ex.Message;
			}
		}

		private void btnDisconnect_Click(object sender, System.EventArgs e)
		{
			try
			{
				m_iCard.Disconnect(DISCONNECT.Unpower);

				btnConnect.Enabled = true;
				btnDisconnect.Enabled = false;
				btnTransmit.Enabled = false;

				statusBarPanel_Info.Text = "Card disconnected";
			}
			catch(Exception ex)
			{
				statusBar.Text = ex.Message;
			}
		}

		private void btnTransmit_Click(object sender, System.EventArgs e)
		{
			try
			{
				APDUResponse	apduResp = m_apduPlayer.ProcessCommand((string) comboApdu.SelectedItem, BuildParam());

				if (apduResp.Data != null)
				{
					StringBuilder	sDataOut = new StringBuilder(apduResp.Data.Length * 2);
					for (int nI = 0; nI < apduResp.Data.Length; nI++)
						sDataOut.AppendFormat("{0:X02}", apduResp.Data[nI]);

                    textDOut.Text = ByteArrayToString(apduResp.Data);
				}
				else
					textDOut.Text = "";

				statusBarPanel_Sw.Text = string.Format("{0:X04}", apduResp.Status);
				statusBarPanel_Info.Text = "Command sent";
			}
			catch(SmartCardException exSC)
			{
				statusBarPanel_Info.Text = exSC.Message;
			}
			catch(Exception ex)
			{
				statusBarPanel_Info.Text = ex.Message;
			}
		}


		private void	SelectICard()
		{
			try
			{
				if (m_iCard != null)
					m_iCard.Disconnect(DISCONNECT.Unpower);

				m_iCard = new CardNative();
				statusBarPanel_Info.Text = "CardNative implementation used";

                m_iCard.OnCardInserted += new CardInsertedEventHandler(m_iCard_OnCardInserted);
                m_iCard.OnCardRemoved += new CardRemovedEventHandler(m_iCard_OnCardRemoved);

			}
			catch(Exception ex)
			{
				btnConnect.Enabled = false;
				btnDisconnect.Enabled = false;
				btnTransmit.Enabled = false;

				statusBarPanel_Info.Text = ex.Message;
			}
		}

        /// <summary>
        /// CardRemovedEventHandler
        /// </summary>
        private void m_iCard_OnCardRemoved()
        {
            btnConnect.Invoke(new EnableButtonDelegate(EnableButton), new object[] {btnConnect, false});
            btnDisconnect.Invoke(new EnableButtonDelegate(EnableButton), new object[] { btnDisconnect, false });
            btnTransmit.Invoke(new EnableButtonDelegate(EnableButton), new object[] { btnTransmit, false });

            //btnConnect.Invoke(Enabled = false;
            //btnDisconnect.Enabled = false;
            //btnTransmit.Enabled = false;
        }


        protected void    EnableButton(Button btn, bool enable)
        {
            btn.Enabled = enable;
        }

        /// <summary>
        /// CardInsertedEventHandler
        /// </summary>
        private void m_iCard_OnCardInserted()
        {
            btnConnect.Invoke(new EnableButtonDelegate(EnableButton), new object[] { btnConnect, true });
            btnDisconnect.Invoke(new EnableButtonDelegate(EnableButton), new object[] { btnDisconnect, false });
            btnTransmit.Invoke(new EnableButtonDelegate(EnableButton), new object[] { btnTransmit, false });

            //btnConnect.Enabled = true;
            //btnDisconnect.Enabled = false;
            //btnTransmit.Enabled = false;
        }

        
        static private string ByteArrayToString(byte[] data)
        {
            StringBuilder sDataOut;

            if (data != null)
            {
                sDataOut = new StringBuilder(data.Length * 2);
                for (int nI = 0; nI < data.Length; nI++)
                    sDataOut.AppendFormat("{0:X02}", data[nI]);
            }
            else
                sDataOut = new StringBuilder();

            return sDataOut.ToString();
        }


        /// <summary>
        /// Loads the APDU list
        /// </summary>
		private void	LoadApduList()
		{
			try
			{
				// Create the APDU player
				m_apduPlayer = new APDUPlayer(ApduListFile, m_iCard);

				// Get the list of APDUs and setup teh combo
				comboApdu.Items.AddRange(m_apduPlayer.APDUNames);
				comboApdu.SelectedIndex = 0;
			}
			catch(Exception ex)
			{
				statusBarPanel_Info.Text = ex.Message;
			}
		}

		private	APDUParam	BuildParam()
		{
			byte	bP1 = byte.Parse(textP1.Text, NumberStyles.AllowHexSpecifier);
			byte	bP2 = byte.Parse(textP2.Text, NumberStyles.AllowHexSpecifier);
			byte	bLe = byte.Parse(textLe.Text);

			APDUParam	apduParam = new APDUParam();
			apduParam.P1 = bP1;
			apduParam.P2 = bP2;
            apduParam.Le = bLe;

			// Update Current param
			m_apduParam = apduParam.Clone();

			return apduParam;
		}

		private void comboApdu_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			DisplayAPDUCommand(m_apduPlayer.APDUByName((string) comboApdu.SelectedItem));

			statusBarPanel_Info.Text = "Command Ready";
			statusBarPanel_Sw.Text = "";
		}

		private	void DisplayAPDUCommand(APDUCommand apduCmd)
		{
			if (apduCmd != null)
			{
				textClass.Text = string.Format("{0:X02}", apduCmd.Class);
				textIns.Text = string.Format("{0:X02}", apduCmd.Ins);
				textP1.Text = string.Format("{0:X02}", apduCmd.P1);
				textP2.Text = string.Format("{0:X02}", apduCmd.P2);
				textLe.Text = apduCmd.Le.ToString();
				
				if (apduCmd.Data != null)
				{
					StringBuilder	sData = new StringBuilder(apduCmd.Data.Length * 2);
					for (int nI = 0; nI < apduCmd.Data.Length; nI++)
						sData.AppendFormat("{0:X02}", apduCmd.Data[nI]);

					textData.Text = sData.ToString();
				}
				else
					textData.Text = "";

				m_apduParam = new APDUParam();
                
                m_apduParam.P1 = apduCmd.P1;
                m_apduParam.P2 = apduCmd.P2;
                m_apduParam.Le = apduCmd.Le;
			}
		}

		private	void	SetupReaderList()
		{
			try
			{
				string[] sListReaders = m_iCard.ListReaders();
				comboReader.Items.Clear();

				if (sListReaders != null)
				{
					for (int nI = 0; nI < sListReaders.Length; nI++)
						comboReader.Items.Add(sListReaders[nI]);

					comboReader.SelectedIndex = 0;

                    btnConnect.Enabled = false;
                    btnDisconnect.Enabled = false;
                    btnTransmit.Enabled = false;

                    //// Start waiting for a card
                    //string reader = (string)comboReader.SelectedItem;
                    //m_iCard.StartCardEvents(reader);

                    //statusBarPanel_Info.Text = "Waiting for a card";
				}
			}
			catch(Exception ex)
			{
				statusBarPanel_Info.Text = ex.Message;
				btnConnect.Enabled = false;
			}
		}


        private void MainForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            try
            {
                m_iCard.Disconnect(DISCONNECT.Unpower);

                m_iCard.StopCardEvents();
            }
            catch
            {
            }
        }

        /// <summary>
        /// If the selection changes, Stop the current Reader event and start the new one
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void comboReader_SelectedIndexChanged(object sender, EventArgs e)
        {
            try
            {
                m_iCard.StopCardEvents();

                // Get the current selection
                int idx = comboReader.SelectedIndex;
                if (idx != -1)
                {
                    // Start waiting for a card
                    string reader = (string)comboReader.SelectedItem;
                    m_iCard.StartCardEvents(reader);

                    statusBarPanel_Info.Text = "Waiting for a card";
                }
            }
            catch (Exception ex)
            {
                statusBarPanel_Info.Text = ex.Message;
                btnConnect.Enabled = false;
            }
        }
	}
}

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Written By
orouit
Architect Connect In Private
Singapore Singapore
Software Architect, COM, .NET and Smartcard based security specialist.

I've been working in the software industry since I graduated in Electrical and Electronics Engineering. I chose software because I preferred digital to analog.

I started to program with 6802 machine code and evolved to the current .NET technologies... that was a long way.

For more than 20 years I have always worked in technical positions as I simply like to get my hands dirty and crack my brain when things don't go right!

After 12 years in the smart card industry I can claim a strong knowledge in security solutions based on those really small computers!
I've been back into business to design the licensing system for the enterprise solution for Consistel using a .NET smart card (yes they can run .NET CLR!)

I'm currently designing a micro-payment solution using the NXP DESFire EV1 with the ACSO6 SAM of ACS. I can then add a full proficient expertise on those systems and NFC payments.
This technology being under strict NDA by NXP I cannot publish any related article about it, however I can provide professional consulting for it.

You can contact me for professional matter by using the forum or via my LinkedIn profile.

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Posted 5 Dec 2006

Article Copyright 2006 by orouit
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