UNIVERSITY OF HERTFORDSHIRE Faculty of Engineering
Contents
1. Card Speaker Recognition System Application CreateForm TMainF Main Application CreateForm TUsersDS UsersDS Application Run end DBComp dpr object UsersDS TUsersDS OldCreateOrder False Left 237 Top 233 Height 640 Width 817 object Users TTable Active True IndexFieldNames ID TableName Users db Left 48 Top 88 end object DS1 TDataSource DataSet Users Left 96 Top 88 end object SearchUser TQuery DataSource DS1 SQL Strings SELECT Name Clear FROM users WHERE ID IDI Left 144 Top 88 ParamData lt item DataType Unknown Name IDI ParamT ype ptUnknown end gt end object DS2 T DataSource AutoEdit False DataSet SearchUser Left 200 Top 88 end object SearchDel TQuery DataSource DS1 SQL Strings SELECT ID FROM users WHERE Del 39 Y 39 Left 144 Top 144 end object DS3 TDataSource AutoEdit False DataSet SearchDel Left 200 Top 144 end object Total TQuery DataSource DS1 SQL Strings SELECT COUNT As sinolo FROM users Left 144 Top 200 end object DS4 TDataSource AutoEdit False DataSet Total Left 200 Top 200 end object Insert TQuery DataSource DSI ParamCheck False SOL Strings INSERT INTO users VALUES IDI NAM MNAM FNAM DB 39 N 39 39 N 39 UniDirectional True UpdateMode upWhereChanged Left 144 Top 256 ParamData lt2. item DataType ftUnknown Name IDI ParamType ptUnknown end item DataType ftUnknown Name NAM ParamType ptUnknown end item DataType ftUnknown Name MNAM ParamType ptUnknown end item DataType ftUnknown Name FNAM ParamType ptUnknown end item DataType Unknown Name DB ParamT ype ptUnknown end gt end object Delete TQuery SQE Strings DELETE FROM users WHERE ID IDI Left 144 Top 312 ParamData lt item DataType ftUnknown Name IDI ParamType ptUnknown end gt end end Main dpr object MainF TMainF Left 476 Top 139 ActiveControl CloseB Borderlcons BorderStyle bsSingle Caption Card Speaker Recognition System ClientHeight 501 ClientWidth 535 Color clBtnFace Font Charset DEFAULT CHARSET Font Color clWindowText Font Height 11 Font Name MS Sans Serif Font Style lcon Data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4. CCont finally end if the first 10 chars are different from 999999999 then the card is activated and the char indicated is the uses ID if CCont Strings 0 lt gt 9999999999 then begin DBComp UsersDS SearchUser ParamByName IDI AsString CCont Strings 0 DBComp UsersDS SearchUser Open RE DataSource DBComp UsersDS DS2 RE DataField Name L2 Caption Your Smart Card has been successfully accessed ME Lines Add Welcome back RE EditText RE Clear RE DataField Clear if RE EditText Y then begin ME Lines Add Y ou have clearance to use the system ME Lines A dd 5 ME Lines Add gt Standing by for speach recognition P3 Visible True GBC Visible True SOV Enabled False end else begin ME Lines Add Y ou do not have clearance to use the system ME Lines A dd 545 3 ME Lines Add T you have just register yo need to wait for you account activation ME Lines Add Please remove your card and contact reception end end else begin L2 Caption Your Smart Card has been successfully accessed ME Lines Add Welcome new user ME Lines Add Standing by to receive your personal information and voice sample ME Lines Add nm am n ME Lines Add gt Please Insert your Personal Data P3 Visible True GBA Visible True GB1 Visible True TODO Give focus on control end RE Free
5. performance differences exist between an industrial strength intelligent reader that supports a wide variety of card protocols and a home style win card reader that only works with microprocessor cards and performs all processing of the data in the PC 2 5 The Software Programmer Inside the package that came with the smart card reader was also a CD with some useful utilities to program the smart card The program the author is using is called Scard Delphi Sample It enables the author to program specific locations into the smart card s memory thus giving more flexibility CHAPTER 3 SPEAKER VERIFICATION AND SMART CARD INTERFACE 3 1 Overview For the Speaker Verification to work correctly it needs 10 recordings of the user s voice That is the only connection these two programs have between them 3 2 Advantages and Disadvantages of the Smart Card Speech Recognition Combination The advantages of this combination are e Increased Security e Fast and Easy Access e No need to remember numbers codes etc The disadvantages are e Unable to get access due to voice change e Accidental destruction of smart card 3 3 User Interface Issues The user Interface was created as simple as possible so that even an amateur PC user will be able to use 1t Keeping in mind that it must user friendly the result 1s very good giving the user the ability to access the menus easily The boxes contain easy to understand words and the feedback given
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end end DBComp pas unit DBComp interface uses Windows Messages SysUtils Classes Graphics Controls Forms Dialogs Db DBTables type TUsersDS class TDataModule Users TTable DS1 TDataSource SearchUser TQuery DS2 TDataSource SearchDel TQuery DS3 TDataSource Total TQuery DS4 TDataSource Insert TQuery Delete TQuery private Private declarations public Public declarations end var UsersDS TUsersDS implementation R DEM end Main pas unit Main interface uses Windows Messages SysUtils Classes Graphics Controls Forms Dialogs SCardC32 ComCtrls ExtCtrls StdCtrls Buttons Db DBTables Grids DBGrids Mask DBCtrls Gauges WinXP Audio ImgList type TMainF class TForm SC TSmartCard PI TPanel P2 TPanel L2 TStat
9. 84 Height 49 Align alTop Caption Mother 39 s Name TabOrder 1 Visible False object ED2 TEdit Left 8 Top 16 Width 169 Height 21 TabOrder 0 OnChange ED2Change end end object GB1 TGroupBox Left 2 Top 15 Width 184 Height 49 Align alTop Caption Full Name TabOrder 0 Visible False object ED1 TEdit Left 8 Top 16 Width 169 Height 21 TabOrder 0 OnChange ED Change end end end end end object P2 TPanel Left 0 Top 460 Width 535 Height 41 Align alBottom TabOrder 1 object CloseB TButton Left 456 Top 8 Width 75 Height 25 Caption Close TabOrder 0 OnClick Button Click end object PB TProgressBar Left 8 Top 8 Width 201 Height 23 Min 0 Max 100 Smooth True TabOrder 1 end end object SC TSmartCard Active True AutoUnlock False Language IngEnglish LanguageT ext Strings CrdDetect Detecting card Crdlnsert Please inserta smartcard CrdInvalid Inyalid unknown smartcard CrdLockedECard is locked by 39 1 39 CrdReady Card ok CrdValid Card activated and ready Progress Operation in progress 1 Search Looking for a terminal at 1 2 S archFail No terminal found at 1 SearchOK Terminal OK at 1 TerminalErr Please check terminal settings no access TerminalTyp Wrong terminal type StatusText Please check terminal settings no access OnCardDetect SCCardDetect OnCa
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11. CCont Free end end else begin L2 Caption Y our Smart Card is not valid end finally end end procedure TMainF ED1Change Sender TObject begin GB2 Visible True end procedure TMainF ED2Change Sender TObject begin GB3 Visible True end procedure TMainF ED3Change Sender TObject begin GB4 Visible True end procedure TMainF GoOnBClick Sender TObject var RE TDBEdit IDI String begin if MessageDlg Are all the information entered corret mtConfirmation mb Yes mbNo 0 mrYes then begin GBA Enabled False GBB Visible True STOR Enabled False ME Lines Add gt Please stand by for voice samplnig EDS Text 1 Reseq Enabled False RE TDBEdit Create MainF DBComp UsersDS SearchDel Open RE DataSource DBComp UsersDS DS3 RE DataField ID if RE EditText then begin RE Clear RE TDBEdit Create MainF DBComp UsersDS Total Open RE DataSource DBComp UsersDS DS4 RE DataField sinolo IDI IntT oStr StrToInt RE EditText 1 if Length IDD 1 then IDI 000000000 IDI if Length IDD 2 then IDI 00000000 IDI if Length IDI 3 then IDI 0000000 IDI if Length IDI 4 then IDI 000000 IDI if Length IDI 5 then IDI 00000 IDI if Length IDI 6 then IDI 0000 IDI if Length IDI 7 then IDI 000 IDI if Length IDI 8 then IDI 00 IDI if Length IDI 9 then IDI 0 IDI end else begin IDI RE EditText DBComp UsersDS Delete ParamByName IDI As
12. Disadvantages of the Smart Card Speech Recognition Combination User Interface Issues 4 Software Interface Design and Implementation Analysis 4 1 4 2 43 4 4 4 5 Overview Interface Issues under a Software Design and Implementation view Interface Design Interface Implementation Discussion Methods and Tools Conclusions 6 6 7 5 Software Engine Design and Implementation Analysis 5 1 Overview 5 2 Software Engine Issues 5 3 Software Engine Design 5 4 Software Engine Implementation Discussion Methods and Tools 5 5 Conclusions 6 Conclusions and further work 6 1 Total Project overview 6 2 Final conclusions 6 3 Further Work e Code Optimization e Increase Security Mechanism e Integrate with Speech Recognition Software 7 Card Reader In Action 7 1 Installation 7 2 Execution BIBLIOGRAPHY Appendix A Source Code 11 H 11 11 12 13 14 14 14 14 16 16 17 20 21 CHAPTER 1 INTRODUCTION 1 1 Introduction to the Project The whole project was based on investigating and implementing an appropriate interface for a Speech Recognition application The whole mechanism is triggered with the use of a card reader and the suited smart cards 1 2 Overview of Speaker Recognition Speech Recognition is the process where a piece is software is charged with the analysis of someone s voice sample in that way that t can be reused to authenticate a feature sample The authenti
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15. Since there are actually only 2 main screens and by using a printed on the screen list of the actions taken while in operation simplifies it in such a way that even the most computer naive can work it out just by reading the on screen instruction For this reason the instruction are as simplified condense and non technical as possible e It is faster for the user to navigate through As it is already explained above the application is based only on 2 screens one screen for each registered and non registered users Each screen has certain states according to the whole application state This makes extremely easy and more important very fast for the users to interact with the system e It is suitable for usage at special cases such as where mouse is absent such as a Kiosk The main reason why this design approach was followed is that applications ability to be used in special cases An example would be a security kiosk with a touch screen an alphanumeric only keyboard and no mouse In such cases navigation and usage can be proven to be quite problematic especially when the Ul is too complicated e The memory footprint of the application is minimized This design approach though has its beneficial impact on the whole system as well The resources that the complier would utilize for the application are minimized as there is no need for extra Object window creation in memory during run time not to mention that part of the initiated compone
16. String IDI DBComp UsersDS Delete ExecSQL end DBComp UsersDS I sert ParamByName IDI AsString IDI DBComp UsersDS Insert ParamByName NAM AsString ED1 Text DBComp UsersDS Insert ParamByName MNAM AsString ED2 Text DBComp UsersDSAnsert ParamByName FNAM AsString ED3 Text DBComp UsersDS Insert ParamByName DB AsString DateToStr Cala Date end else begin EDI Clear ED2 Clear ED3 Clear GB4 Visible False GB3 Visible False GB2 Visible False GoOnB Visible False end end procedure TMainF STARClick Sender TObject begin Reseq Enabled False STAR Enabled False STOR Enabled True AU Recorder RecordToFile samples DBComp Users S Insert Params ParamValues I DITO EDS Text wav NIL NIL AU Recorder Start end procedure TMainF STORClick Sender TObject begin STOR Enabled False AU Recorder Stop AU Player PlayFile samples DBComp UsersDS Insert Params ParamValues IDI EDS Text wav 0 end procedure TMainF AUPlayed Sender TObject begin if MessageDlg Are you satisfied with the sample you provided If not you have to reapeat this stage mtConfirmation mb Yes mbNo 0 mrY es then begin if ED5 Text 10 then begin ME Lines Add gt Please stand by for System update DBComp UsersDS Insert ExecSQL ME Lines Add gt Please stand by for Card update SC ComandStr cmCard cmMemWrite 0 10 DBComp UsersDS Ins
17. UNIVERSITY OF HERTFORDSHIRE Faculty of Engineering amp Information Science BACHELOR OF ENGINEERING DEGREE DEGREE WITH HONOURS IN ELECTRONIC ENGINEERING Project Report SPEAKER RECOGNITION FOR ACCESS CONTROL George Koutsis April 2002 ABSTRACT A User Interface Program was created to join the Smart Card Verification program with the Speaker Recognition Details on what 1s a smartcard and how 1t works can be found in the report as well as how the interface program was created ACKNOWLEDGEMENTS The author would like to thank his project supervisor Dr A M Ariyaeeinia Ior his continued guidance and support throughout the project The initial stages of programming required the author to ask experienced people in the field of programming Although he may not be aware of the influence he had the author would like to thank Mr George Tsitouridis CONTENTS Abstract Acknowledgements 1 Introduction 1 1 1 2 1 3 1 4 1 5 1 6 Introduction to the Project Overview of Speaker Recognition Applications of Speaker Verification and Motivation Project Aims Project Demands Report Structure 2 Smart Cards Technologies 2 1 2 2 2 3 2 4 2 5 Overview What a Smart Card is Smart Card Applications The Smart Card Reader Writer Programmer The Software Programmer 3 Speaker Verification and Smart Card Interface 3 1 3 2 3 3 Overview 1 09 NON mm R R R OU W 6 Advantages and
18. Your Smart Card has been successfully accessed welcome new userl Personal Data Standing by to receive pour personal information and voice sample Full Name Koutsis George gt Please Insert your Personal Data gt Please stand by for voice samplnig Maria Father s Name Kostas Date of bith 5 9 1974 Pro Voice Sampling Start Voice Sampling Stop Voice Sampling Number of attempts Restart Sequence CT After the new user has completed his registration the recording phase will begin where the user will be asked to say a specific sentence ten times These recording as saved in the hard drive as PCM audio files After the recording has ended the user doesn t have clearance on the system unless the system administrator checks that everything is ok with the account This is a small measure to prevent unauthorized personnel registering with the system and gaining access So 1f somebody registers with a stolen smart card formatted to work in the system will not be able to use it The next time the registered user inserts his card in the reader the system will recognize him and if the system administrator gave him clearance he she will be able to use the system Card Speaker Retognilion System Welcome to the University of Hertfordshire Your Smart Card has been successfully accessed Welcome back Kout
19. able for cases like this Interface Design As was stated above the driving reasoning behind it is to create an Interface as simple as possible without many rising windows along with a sense of completeness That is more to fit and presented on the screen at the some though level This means that the author built something that resembles a serial sequence of events within the same window which makes it much more easy and fast to use and operate without confusing the user or wasting his or hers time 4 4 Interface Implementation Discussion Methods and Tools As soon as all the design issues for the User Interface UI had been taken care the implementation process did not take too long to complete As 1t is obvious the main obstacles faced at this part of the project was to decide on the approach to be used in order not to built the interface rather than creating a suitable functionality The programming technique used to achieve such a result was to se auto hide menus This means that all the menu bars voice sampling controls etc are located on the same form and thus on the same windows but not visible to the user until a special trigger is activated that will bring them up This design though quite hard to implement as far as the visual part in concerned because all the visual components VCL in Delphi are condense is extremely efficient In more detail e It is easier for the user to understand and use it
20. able to accept only a specific kind of Smart Cards In more detail 1t 1s checking for I2C with 2K memory size If something else is given then it will be rejected Then it is seeking for a secret pass code write in the last 11 characters That code is CSRS640870C If it is not found then it mean that the card was not issued by the organization using the system and therefore it is again rejected Integrate with Speech Recognition Software The author feels confident to state that though a Speech Recognition Software was given in order to be integrated with the Smart Card Reader software that was impossible due to technical reasons In detail the software packet called RTSVS by Mr Johann Siaw was supposed to operate as a background voice sample matching engine but instead it came out to be a fully compiled stand alone software to which the author could do nothing not even study due to its nature Therefore the integration never took place as it 1s impossible to merge to already compiled executable files CHAPTER 7 CARD READER IN ACTION 7 1 Installation The installation of the program is pretty much like any other software program Windows Installer gt Preparing to install Cancel During the installation the system administrator has the option of entering his personal details Name and company After that the install program will display the installation path on the computer J CardReader I
21. ation Program e To learn how the smart card reader reads and writes on the card and implement it on the interface program e To investigate current methods of sound capture and decide upon a suitable technique for system implementation e Learn more about databases and SQL e Time Management A time plan was created at the outset of the project to give guidelines of when each part of the project should be completed Although some features may have changed it was necessary to have an indication of the overall time structure of the project 1 6 Report Structure Each chapter in the report has an introductory overview to give the reader an idea of its content The reader may then decide if the documented material is relevant to them CHAPTER 2 SMART CARD TECHNOLOGIES 2 1 Overview The smart card an intelligent token is a credit card sized plastic card embedded with an integrated circuit chip It provides not only memory capacity but computational capability as well The self contamment of smart card makes it resistant to attack as it does not need to depend upon potentially vulnerable external resources Because of this characteristic smart cards are often used in different applications which require strong security protection and authentication 2 2 What a Smart Card is The printed circuit conforms to ISO standard 7816 3 which provides five connection points for power and data It is h rmetically fixed in the recess provid
22. cation is based on a matching process usually from patterns in both the voice sample and the one stored in the system In other words this is a way for users to identify themselves to a security system 1 3 Applications of Speaker Verification and Motivation There is a wide range of applications where speaker verification can be used to enhance security with the convenience of voice Applications in the financial and telecommunications markets support transactions and provide information that is valuable and subject to fraud This advanced recognition capability addresses the security needs of the high volume call processing marketplace by enabling Interactive Voice Response IVR applications to use voice verification a biometric in place of existing means of authentication such as touchtone based passwords or PINs 1 4 Project Aims The Aim of this project is to develop an Interface between a smart card reader and a Speaker Verification Program The Interface requires the user to input his personal details and records his voice 1s a file for future use 1 5 Project Demands With no previous knowledge on Programming the main demand of the author was to research and understand these areas as well as any associated subject material Other demands included e Gaining a good understanding of the programming language required for designing the interface e To acquire some knowledge of the operation and requirements of the speaker Verific
23. der 3 end end object GBC TGroupBox Left 1 Top 1 Width 188 Height 88 Align alTop Caption Voice Sampling TabOrder 2 Visible False object SAV TButton Left 8 Top 24 Width 169 Height 25 Caption Start Voice Sampling TabOrder 0 OnClick SAVClick end object SOV FButton Left 8 Top 48 Width 169 Height 25 Caption Strop Voice Sampling TabOrder 1 OnClick SOVClick end end object GBA TGroupBox Left 1 Top 89 Width 188 Height 159 Align alClient Caption Personal Data TabOrder 0 Visible False object GoOnB TButton Left 102 Top 216 Width 75 Height 25 Caption Proceed TabOrder 4 Visible False OnClick GoOnBClick end object GB4 TGroupBox Left 2 Top 162 Width 184 Height 49 Align alTop Caption Date ef birth TabOrder 3 Visible False obj ct Cala TDateTimePicker Left 8 Top 16 Width 169 Height 21 CalAlignment dtaLeft Date 21916 1567955903 Time 21916 1567955903 DateFormat dfShort DateMode dmUpDown Kind dtkDate Parselnput False TabOrder 0 OnChange CalaChange end end object GB3 TGroupBox Left 2 Top 113 Width 184 Height 49 Align alTop Caption Father 39 s Name TabOrder 2 Visible False object ED3 TEdit Left 8 Top 16 Width 169 Height 21 TabOrder 0 OnChange ED3Change end end object GB2 FGroupBox Left 2 Top 64 Width 1
24. ed on the card and is burned onto the circuit chip filled with a conductive material and sealed with contacts protruding The printed circuit protects the circuit chip from mechanical stress and static electricity Communication with the chip is accomplished through contacts that overlay the printed circuit The capability of a smart card is defined by its integrated circuit chip Typically an integrated circuit chip consists of a microprocessor read only memory ROM non static random access memory RAM and electrically erasable programmable read only memory EEPROM which will retain its state when the power is removed The current circuit chip 1s made from silicon which is not bendable and particularly easy to break Therefore in order to avoid breakage when the card 1s bent the chip is restricted to only a few millimetres in size Printed Circuit yo Microcontroller SA Glue AS P Plastic Su 2 3 Smart Card Applications There are over 300 000 000 GSM mobile telephones with smart cards which contain the mobile phone security and subscription information The handset is personalized to the individual by inserting the card which contains its phone number on the network billing information and frequently call numbers Almost every small dish TV satellite receiver uses a smart card as its removable security element and subscription information The Financial industry has been quick to adopt smart card technology in va
25. ert Params Par am Values IDI ME Lines Add gt Registration Complete SC Active False if MessageDlg Congratulations You are now registered on the Voice Recognition System mtInformation mb Yes 0 mrY es then begin GBA Enabled True ME Lines Clear ED1 Clear ED2 Clear ED3 Clear GB2 Visible False GB3 Visible False GB4 Visible False GoOnB Visible False GBB Visible False P3 Visible False SC Active True end end EDS Text IntT oStr StrToInt EDS Text 1 Reseq Enabled True end STAR Enabled True STOR Enabled False Reseq Enabled True end procedure TMainF ReseqClick Sender TObject begin EDS Text l end procedure TMainF SAVClick Sender TObject begin SAV Enabled False SOV Enabled True AU Recorder RecordToFile tocompare wav NIL NIL AU Recorder Start end procedure TMainF SOVClick Sender TObject begin SOV Enabled False AU Recorder Stop P3 Visible False GBC Visible False SAV Enabled True ME Lines Add gt Matching Sample end procedure TMainF CalaChange Sender TObject begin GoOnB Visible True end procedure TMainF Buttonl Click Sender TObject begin Application Terminate end end
26. here were two options e either to use Delphi s procedural language or e usea non procedural query language like SQL The obvious choice was the second one Though much more difficult to implement not to mention complicated it is extremely flexible At this point another effort was done by the author and that was the process of understanding and learning SQL Finally there were some SQL queries created to interrogate the database which were also embedded into Delphi so that variable can be used instead of constants Apart from the third level which is the User Interface the second one has another part that is charged with the manipulation of data This was the most difficult of all to implement The first great obsta le came form the card reader itself It seemed there was no way of actually having Delphi see through the COM port the Smart Card Reader at the other end The reason as it was proven later with the help of Mr George Tsitouridis is that the specific hardware component uses a special Delphi VCL in order to be integrated into the programming language The problems with the Card Reader did not come to an end after the installation of this piece of software M re essential action were about to be taken in order to achieve the communication between the software application and the hardware The total luck of user manual forced the author to actually decompose example software given in source code in order to obtain vital infor
27. icText ME TMemo CloseB TButton L1 TStaticText PB TProgressBar WinXP1 TWinXP P3 TPanel GB1 TGroupBox GB2 TGroupBox GB3 TGroupBox GB4 TGroupBox GoOnB TButton EDI TEdit ED2 TEdit ED3 TEdit AU TAudio IL TImageList GBA TGroupBox GBB TGroupBex STAR Button STOR TButton Reseq FButton L3 TLabel EDS TEdit GBC TGroupBox SAV TButton SOV TButton Cala TDateTimePicker procedure SCCardWait Sender TObject Devicelndex Integer procedure SCCardDetect Sender TObject Devicelndex Integer procedure SCDeviceError Sender TObject Devicelndex Integer procedure Button1Click Sender TObject procedure SCCardlnvalid Sender TObject Devicelndex Integer procedure SCProgress Sender TObject Devicelndex Progress Integer procedure SCCardActive Sender TObject Devicelndex Integer procedure ED1Change Sender TObject procedure ED2Change Sender TObject procedure ED3Change Sender TObject procedure GoOnBClick Sender TObject procedure STARClick Sender TObject procedure STORClick Sender TObject procedure AUPlayed Sender TObject procedure ReseqClick Sender TObject procedure SA VClick Sender TObject procedure SOVClick Sender TObject procedure CalaChange Sender TObject private Private declarations public Public declarations end Var MainF TMainF Timer Integet implementation uses DBComp var CCont TStringList SR DFM
28. ld ParentFont False TabOrder 0 end object ME FMemo Left 1 Top 65 Width 343 Height 394 TabStop False Align alClient ReadOnly True TabOrder 1 end object L1 TStaticText Left 1 Top 1 Width 533 Height 33 Align alTop Alignment taCenter Caption Welcome to the University of Hertfordshire Font Charset GREEK_CHARSET Font Color clTeal Font Height 24 Font Name Tahoma Font Style fsBold ParentFont False TabOrder 2 end object P3 TPanel Left 344 Top 65 Width 190 Height 394 Align alRight BevelOuter bvNone BorderWidth 1 TabOrder 3 Visible False object GBB TGroupBox Left 1 Top 248 Width 188 Height 145 Align alBottom Caption Voice Sampling TabOrder 1 Visible False object L3 TLabel Left 24 Top 80 Width 92 Height 13 Caption Number of attempts end object STAR TButton Left 8 Top 24 Width 169 Height 25 Caption Start Voice Sampling TabOrder 0 OnClick STARClick end object STOR TButton Left 8 Top 48 Width 169 Height 25 Caption Strop Voice Sampling TabOrder 1 OnClick STORClick end object Reseq Button Left 8 Top 112 Width 169 Height 25 Caption Resfart Sequence TabOrder 2 OnClick ReseqClick end object EDS TEdit Left 120 Top 80 Width 41 Height 19 Bevellnner bvNone BevelOuter bvNone Ctl3D False ParentCtl3D False ReadOnly True TabOr
29. mation on the programming of the Smart Card Reader VCL As soon as this was over and other problem come That was the sound supporting VCL components in Delphi What was required was simply a facility to record stereo sound by just clicking a button on the interface and of course playing it back Unfortunately the Delphi built in Media Player API interface was too complicated and in some case not compatible There the problem solved by downloading from the Internet a special VCL component that would do just that Some furthermore technical details can be found in Chapter 6 5 5 Conclusions The author chose Delphi because it was easier to implement with it the smart card reader programmer The Delphi component regarding the reader supplied within the Card Reader CD was installed after an enormous effort to access the Smart Card Reader though the Programming Language The most difficult part was the creation ofthe PARADOX database not just the table itself but mainly the whole set and especially the Delphi embedded SQL queries Finally great consideration must be given in the author s first attempt to search the Internet for freeware VCL and use them within the application as a way of substituting the complex built it equivalent component CHAPTER 6 CONCLUSIONS AND FURTHER WORK 6 1 Project Overview 6 2 6 3 The combination of a smart card with a speech verification programs proves useful especially where we don t want una
30. nstallShield Wizard E Welcome to the InstallShield Wizard for CardReader The InstallShield R Wizard will allow you to modify repair or remove CardReader To continue click Next A status bar will show the installation progress so that the Administrator can see when then installation is completed JS CardReader InstallShield Wizard Installing CardReader The program features you selected are being installed A Please wait while the InstallShield Wizard installs CardReader This may take several minutes Status Installshield Bad Next After the completion a shortcut of the program is placed on the desktop giving fast access to the program 7 2 Execution After the correct connection of the smart card reader on the RS232 port the program will start prompting the user to insert his card in the reader Card Speaker 12201 2 1110 system Welcome to the University of Hertfordshire Please insert your Smart Card in the indicated slot If the card reader is not properly connected an error message will show Card Speaker Recognition System Welcome to the University of Hertfordshire Device Error Please try again later When a new user inserts his card in the card reader the system checks its database and prompts the new user to insert his details in the database GAT Suze 112221 21 11110 syste Welcome to the University of Hertfordshire
31. nts are not activated instantly freeing even more RAM e Code is optimized due to the luck of reference to Objects in Units located outside the main one Again here due to the luck of more than two main Units there are only a few references to objects found in those two The rest is references from internal to other internal objects which minimizes resources allocation discussed in more detail at section 6 3 e Homogeneous UI User Interface Exactly because of the use of just one form window the appearance details had to be set only once not to mention that due to inheritance and the fact that groups of VCL were used minimized the effort of applying these details to each visual component This procedure increased dramatically the User Interface consistency in such a degree that appears to be no differences in the drawing philosophy of each VCL or group of VCLs e Easier and faster to implement As a result of all the above mention and analyzed it is more than clear that the whole procedure of modeling and coding the UT was greatly simplified and strait forward leaving almost no space for mistakes and misunderstandings Here is the complete flow chart of the User Interface based on the actions taken by the system 4 5 Conclusions The Interface was the rather fun part where the author had many ideas of what the ideal interface would be according to him Borland Delphi gives lot of choices and solutions on how to create
32. procedure TMainF SCCardWait Sender TObject Devicelndex Integer begin ME Lines Clear ED1 Clear ED2 Clear ED3 Clear GB2 Visible False GB3 Visible False GB4 Visible False GoOnB Visible False GBB Visible False P3 Visible False P3 Visible False PB Position 0 L2 Caption Please insert your Smart Card in the indicated slot end procedure TMainF SCCardDetect Sender TObject Devicelndex Integer begin ME Lines Clear L2 Caption Please wait while your Smart Card is being accessed end procedure TMainF SCDeviceError Sender TObject Devicelndex Integer begin ME Lines Clear L2 Caption Device Error Please try again later end procedure I MainF SCCardlnvalid Sender TObject DeviceIndex Integer begi ME Lines Clear L2 Caption Y our Smart Card is not valid end procedure TMainF SCProgress Sender TObJect Devicelndex Progress Integer begin PB Position Progress end procedure TMainF SCCardActive Sender TObject Devicelndex Integer var RE TDBEdit begin RE TDBEdit Create MainF System checks the type of the card try if SC CardInfo Strings 2 Type I2C 2K then begin CCont TStringList Create System checks if the card belongs to this system by checking the last 11 chars try SC ComandList Card MemRead 245 11 CCont finally end if CCont Strings 0 CSRS640870C then begin CCont Clear try SC ComandList Card MemRead 0 10
33. rdActive SCCardActive OnCardlnvalid SCCardlnvalid OnCardWait SCCardWait OnDeviceError SCDeviceError OnProgress SCProgress Left 72 end object WinXP1 TWinXP Left 40 end object AU TAudio Player BitsPerSample 16 Player Channels Stereo Player SampleRate 44000 Recorder BitsPerSample 16 Recorder Channels Stereo Recorder SampleRate 44000 Recorder TrigLevel 0 Recorder Triggered False Version 4 1 32bit OnPlayed AUPlayed Left 104 end object IL TImageList Left 136 Bitmap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
34. rious countries around the world Every French Visa Debit card over 25 000 000 has a chip in it In Germany about 40 000 000 banking cards have been issued EuroPay MasterCard and Visa all have smart card programs for their bank members In the Portugal and Singapore the national banking networks have launched electronic purse projects Proton has worked with its banking partners to issue over 25 000 000 electronic purse cards in several countries Various countries with national health care programs have deployed smart card systems The largest is the German solution which deployed over 80 000 000 cards to every person in Germany and Austria There are over 100 countries world wide that have reduced or eliminated coins from the pay phone system by issuing smart cards Greece Germany France UK Brazil Mexico and China have major programs Other applications for smart cards include computer internet user authentication and non repudiation retailer loyalty programs physical access resort cards mass transit electronic toll product tracking national ID drivers license pass ports and the list goes on 2 4 The Smart Card Reader Writer Programmer In order to program and read a smart card you need a smart card reader Smart Card Readers are available that interface to RS232 serial ports USB ports PCMCIA slots floppy disk slots parallel ports infrared IRDA ports and Keyboards and keyboard wedge readers Extensive price and
35. sis George You have clearance to use the system gt Standing by for speach recognition gt Matching Sample Gard Bpeaker HSE 09H HOF STE Welcome to the University of Hertfordshire Your Smart Card has been successfully accessed welcome back Koutsis George You do not have clearance to use the system If you have just register you need to wait for you account activation Please remove your card and contact reception 1 2 3 4 5 6 1 8 9 BIBLIOGRAPHY CONNOLLY T BEGG C 1998 Database Systems Second Edition Addison Wesley OSIER D GRODMAN S BATSON S 1997 Delphi 3 in 14 Days First Edition Indiana SAMS DFSStatusBar 1999 Delphi Free Stuff URL http www delphifreestuff com CANTU M 1999 Mastering Delphi 5 First Edition Alameda SYBEX DOUG BELL IAN MORREY JOHN PUGH 1992 Software Engineering Second Edition Prentice Hall Notifylcon 2000 Tanis Denmark URL http www tanis dk KOFFMAN EB 1994 Pascal Fifth Edition Addison Wesley ENTSMINGER G 1996 The way of Delphi First Edition New Jersey Prentice Hall PTR UmValuEdit INETDetector 2000 UtilMind URL http www utilmind com APPENDIX A SOURCE CODE CardReader dpr program CardReader uses Forms Main in Main pas MainF DBComp in DBComp pas UsersDS TDataModule SR RES begin Application Initialize Application Title
36. the dialogs between the pc and the user After having understood exactly how the program should be the design was quite easy With the help of some books on programming the result is pretty good with clear buttons and menus giving a professional but fairly easy to use interface The whole interface was created in such a way that it can be used in many different locations and cases thus not being just a PC providing in that way greater usability CHAPTER 5 SOFTWARE ENGINE DESIGN AND IMPLEMENTATION ANALYSIS 5 1 Overview We shall move now on discussing further technical details of the software application It is too important to analyze the background engine of the whole system as 1t 1s responsible for the whole functional behavior 5 2 Software Engine Issues While designing the core engine of the application no serious obstacles arose there were huge problem with the coding procedure itself The reason for that was mainly the author s luck of knowledge in Visual Object Oriented Programming and furthermore the importing procedure into Borland Delphi of a VCL so that the card reader would become available and accessible to the programming environment This is actually the part where Mr George Tsitouridis provided extreme support in many different levels He taught me the basic principals of Visual OO Programming and provided the author with enough education material such as books and magazines to get started and actually developing a q
37. to the user is adequate There is always the possibility for improvements which will come with the use of the program finding any weaknesses and reporting them to the author CHAPTER 4 SOFTWARE INTERFACE DESIGN AND IMPLEMENTATION ANALYSIS 4 1 4 2 4 3 Overview Perhaps one of the most important part of the project was the Software Interface There were great limitations and great considerations to b made in order to achieve something such as the one created and presented Interface Issues under a Software Design and Implementation view The Programming Environment selected to build the application was Borland today Inspire Delphi which actually is an Object Oriented Visual Pascal The selection was done based on the facilities provided along with the advice of Mr George Tsitouridis for a compact easy and most complete implementation As stated above while dealing with visual programming engines creating an interface is not hard to achieve The issues that rise in this specific case had more to do with the nature of the application rather than the programming methods In other words it was more important to consider how to form the interface rather than how to program it The reason behind it was the fact that a Card Reader Software is applicable only in specific cases such as the use of a post with a touch screen along with the card reader as a security control mechanism Therefore it is obvious that the Interface suit
38. uite extensive knowledge on it 5 3 Software Engine Design Designing the core of the application was one of the most difficult and challenging parts as it gave the feeling of using a tool without knowing its abilities or its limitation Finally the following approach was adopted The program will have only two main units One would be the form window the User Interface along with its UI specific code which would make calls on the second unit which is all the code for processing data along with all the subroutines used to control the Database Of course the third and the last level is the database itself which is used to store user personal data which are processed and compared with that located on the Smart Cards 5 4 Software Engine Implementation Discussion Methods and Tools Let s start analyzing the application core by levels The first and lowest level is the Database level This is implemented using the Delphi s built in PARADOX Database support It contains essential user information such as Last Name First Name Father s Name Mother s Name Date Of Birth Registration ID as long as other control fields that indicate whether a user is deleted from the system or not and whether a user even a registered is suppose to use the system have clearance On the second level there is the database control software along with the appropriate processing routines In order though to implement access on the database t
39. uthorized access It provides a high security with the benefit of a unique key which is the user s voice That means that nobody unless they have their voices recorded can gain access to the system This technique is widely used many years now with success and is going to be one of the most secure ways to log on to the future computer and not just only systems Final Conclusions This project was a good chance for the author to improve his skills in programming time management and gathering information After having spent many hours on the project and reading articles about programming one thing 1s sure There is no secure way to gain access to a system There will always be a way to break 1t or bypass 1t through a small mistake in the code So this makes the need for code improvement definite Further Work As soon as the project was complete there was more time available and therefore some further steps were taken Those were the code optimization a way of enforcing stronger security on the system and finally the attempt to integrate the application with a Speech Recognition Software In detail e Code Optimization Having studying in more detail Borland Delphi the author was able to isolate certain parts in the program code he wrote that if they were rewritten the application would operate more efficiently in any aspect Increase Security Mechanism The mechanism that was used was quite simple First of all the system is
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