debitcard application with zeitcontrol basiccard

DebitCard Application with ZeitControl BasicCard

Selim GULLULU [email protected]

DebitCard Application with ZeitControl Basiccard 20/12/2005—2 Selim GULLULU 504042001

Contents

> Memory Card vs. Smart Card (ZC BasicCard)

> BC Versions + Environment&Programming

> Hardware & Software Definitions

> Demonstration - Card Personalisation

> Demonstration – Food Automat


Memory Card vs. Smart Card (ZC BasicCard)

> Memory Cards:EEPROM Storage Only

> ZC BasicCard : Microcontroller with RAM (for operation), ROM (for holding BasicCard OS) and EEPROM for holding your data and your program

> ZC BasicCard : The program executed by the microcontroller has access to the data stored in EEPROM, so the program decides which data is exchanged with the outer world


BasicCard Versions

The Card Used In

The Project


Communicating With Smart Card


BasicCard Environment & Programming

> No Keyboard or Screen ?

> Talks to outside world with bi-directional I/O Contact at 9600 bps or more (ISO/IEC standards 7816-3

and 7816-4)

> Define a command in the card and program it like an ordinary Basic procedure

> Call the command from a ZC-Basic program running on the PC

> Two-byte ID for each defined command (ISO/IEC 7816-4: CLA and INS for CLAss and INStruction


Command Example

> Command In BasicCard:

Eeprom CustomerCredits

Command &H20 &H02 GetCustomerCredits (Credits)

Credits = CustomerCredits

End Command

> To call the command from PC:

Const swCommandOK = &H9000

Declare Command &H20 &H02 GetCustomerCredits (Credits)

Status = GetCustomerCredits (Credits)

If Status <> swCommandOK Then GoTo CancelTransaction


Defining EEPROM Variables

> Eeprom Balance As Long

> Eeprom MasterPIN As String*6 = "123456“

> ...


Technical Summary Of BasicCard(s)

All BasicCard families (Compact,Enhanced,Pro,Multiapp)

> A full implementation of the T=1 block-level communications protocol defined in ISO/IEC 7816-3: Electronic signals and transmission protocols;

> A command dispatcher built around the structures defined in ISO/IEC 7816-4 (CLA INS P1 P2 [LcIDATA] [Le]

> Built-in commands for the execution of ZeitControl’s P-code

> Code for the automatic encyrption and decyption of commands and responses,using AES, DES,or SG-LFSR symmetric-key algorithm


Technical Summary Of BasicCard(s) (Continued)

Enhanced BasicCards contain all of the above,plus:

> A directory-based, dos-like file system

> IEEE-compatible floating-point arithmetic


Card Readers

> Whenever you access a BasicCard or a Card Reader from a ZC-Basic Terminal Program, ZeitControl’s P-Code Interpreter uses the current value of the ComPort variable to determines where to look for the Card Reader.

> A ZC-Basic program compiled into an executable file accepts the following values for the ComPort:

1 <= ComPort <= 4: Physical Card Reader on serial port COM1-COM4


CyberMouse


Search Card Reader (1)



The Comport

To be used



Use “API select Default Reader” for Windows XP


ZC BasicCard ActiveX Control Module


BasicCard VB library


Command Definitions Ex. – Set Values (in PC)

Private Sub SetValues_Click()

Dim PIN As String * 4

Dim tmp As Long

PIN = PIN1.Text

ErrorMsg.Panels(1).Text = "Verifing..."

DoEvents

MyCard.Err = MyCard.IssuerEncrypt(Key, DesKey)

If MyCard.Err = 0 Then

tmp = Balance.Text * 100

MyCard.Err = MyCard.PersonaliseCard(tmp, PIN, ClientName.Text)

End If

If MyCard.Err = 0 Then

ErrorMsg.Panels(1).Text = "Personalization successful."

Else

ErrorMsg.Panels(1).Text = DebitErrors(0)

End If

MyCard.EndEncryption

MyCard.ReleaseCard

End Sub


Command Definitions Ex – Set Values (Cont’d) (in PC)

Public Function PersonaliseCard(Amount As Long, _

NewPIN As String, Name As String)

Dim tmp As String * 4

tmp = NewPIN

BasicCard.Param1 = Amount

BasicCard.Param2 = tmp

BasicCard.Param3 = Name

PersonaliseCard = BasicCard.Transaction(&H80, &H0, 3)

Err = BasicCard.LastErr

SW1SW2 = BasicCard.SW1SW2


Command Definitions Ex. – Set Values (Cont’d) ( BC)

Command &H80 &H00 PersonaliseCard (Amount As Long, NewPIN As String*4, Name$)

Call CheckAlgorithm()

If GetKeyNumber@() <> 0 Then SW1SW2 = swIssuingKeyRequired : Exit

Personalised = False

Balance = Amount

CustomerName$ = Name$

PIN = NewPIN Personalised = True

End Command


Compiling the ZCBasic Code

Here, the card type we used is selected.

The code that we want to compile


Downloading The Code To BasicCard

The Com Port taht we attached the reader (Search card Reader)


Demonstration (Personalisation & Food Automat)

debitcard application with zeitcontrol basiccard

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