VeriFone VX 520 Specifications Page 83
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FILE AUTHENTICATION
Introduction to File Authentication
VX 520 R
EFERENCE GUIDE 83
Planning for File
Authentication
File authentication is an integral part of every VX 520 terminal. To safeguard the
terminal’s logical security, the file authentication module requires that any
executable code file must be successfully authenticated before the operating
system allows it to execute on the terminal.
Authentication Requirements for Specific File Types
For the purposes of file authentication, executable code files include two file types
that can be recognized by the filename extensions listed in Table 12.
Depending on the logical security requirements of specific applications, other
types of files used by an application (that is, non-executable files) must also be
authenticated.
• Data files (*.dat) that contain sensitive customer information or other data
that must be secure.
• Font files (*.vft or *.fon) may need to be secure to prevent unauthorized
text or messages from being displayed on the terminal screen.
• Any other type of file used by an application in which the application designer
would like to logically secure using file authentication requirements.
Decide Which Files to Authenticate in a Specific Application
The first step in the file authentication process is to determine which files must be
authenticated for an application to meet its design specifications for logical
security under the VeriShield security architecture.
In most cases, application designers make these decisions based on
specifications provided by the terminal sponsor. Determining which files to
authenticate can be completely transparent to the person or business entity
responsible for signing, downloading, and authenticating an application prior to
deployment.
How (and When) Signature Files Authenticate Their Target Files
Signature files are usually downloaded together with their target application files in
the same data transfer operation. This recommended practice lets you specify
and confirm the logical security status of the VX 520 terminal each time you
perform an application download.
When the file authentication module detects a new signature file after a terminal
restart, it locates and attempts to authenticate the target file that corresponds to
the new signature file.
Table 12 Executable File Extensions
File Type Extension
Compiled and linked application files *.out
Global function libraries *.lib
- Reference Guide 1
- CONTENTS 3
- 4 VX 520 REFERENCE GUIDE 4
- 6 VX 520 REFERENCE GUIDE 6
- Audience 7
- Organization 7
- Conventions and 8
- Acronyms 8
- Table 1 Document Conventions 9
- Convention 9
- Acronym Definitions 10
- CHAPTER 1 11
- Features and 12
- Benefits 12
- TERMINAL OVERVIEW 13
- Features and Benefits 13
- GUIDE 13 13
- 14 VX 520 REFERENCE GUIDE 14
- CHAPTER 2 15
- Unpacking the 16
- Shipping Carton 16
- Examining 17
- Terminal 17
- Features 17
- 18 VX 520 REFERENCE GUIDE 18
- TERMINAL SETUP 19
- Examining Terminal Features 19
- GUIDE 19 19
- 20 VX 520 REFERENCE GUIDE 20
- Installing the 21
- Smart Battery 21
- (VX 520 GPRS 21
- Establishing 22
- Telephone Line 22
- Connections 22
- Paper Roll in the 23
- 24 VX 520 REFERENCE GUIDE 24
- Installing/ 25
- Replacing MSAM 25
- 26 VX 520 REFERENCE GUIDE 26
- 2 Remove the battery 27
- 5 Install the battery 27
- 28 VX 520 REFERENCE GUIDE 28
- Connecting Optional Devices 29
- GUIDE 29 29
- Connecting the 30
- Terminal Power 30
- Charging the 31
- Privacy Shield 32
- (Optional) 32
- Using the Smart 32
- Card Reader 32
- Using the 33
- Magnetic Card 33
- 34 VX 520 REFERENCE GUIDE 34
- CHAPTER 3 35
- Data Entry 36
- Functions 37
- USING THE TERMINAL KEYS 38
- Keypad Functions 38
- VX 520 REFERENCE GUIDE 38
- * ,’" * , ’ " 39
- Programmable 40
- Function (PF) 40
- Descriptions 40
- CHAPTER 4 41
- Local and 42
- Operations 42
- Verifying 42
- Terminal Status 42
- Entering Verix 43
- File Groups 43
- Passwords 44
- Verix Terminal 44
- Manager Menus 44
- Action required 45
- 46 VX 520 REFERENCE GUIDE 46
- Enter and Exit Verix 47
- Terminal Manager 47
- ERIX TERMINAL MANAGER 48
- VERIX TERMINAL MANAGER 49
- Verix Terminal Manager Menus 49
- GUIDE 49 49
- EFERENCE GUIDE 59 59
- EFERENCE GUIDE 61 61
- 5> DIAGS 3 > ICC DIAGS 63
- 5> DIAGS 6 > DEBUGGER 64
- EFERENCE GUIDE 65 65
- 6 > SYSTEM ERROR LOG 67
- EFERENCE GUIDE 69 69
- 4> KEY MANAGEMENT 71
- 74 VX 520 REFERENCE GUIDE 74
- CHAPTER 5 75
- 76 VX 520 REFERENCE GUIDE 76
- Signature *.p7s 76
- Private key *.key 76
- Digital certificate *.crt 76
- FILE AUTHENTICATION 77
- GUIDE 77 77
- 78 VX 520 REFERENCE GUIDE 78
- GUIDE 79 79
- 80 VX 520 REFERENCE GUIDE 80
- GUIDE 81 81
- 82 VX 520 REFERENCE GUIDE 82
- Planning for File 83
- 84 VX 520 REFERENCE GUIDE 84
- GUIDE 85 85
- 86 VX 520 REFERENCE GUIDE 86
- GUIDE 87 87
- 88 VX 520 REFERENCE GUIDE 88
- ILE AUTHENTICATION 89
- EFERENCE GUIDE 89 89
- 90 VX 520 REFERENCE GUIDE 90
- 92 VX 520 REFERENCE GUIDE 92
- GUIDE 93 93
- VeriShield File 94
- Signing Tool 94
- Command-Line 95
- Entries for the 95
- VeriShield File Signing Tool 96
- GUIDE 97 97
- 98 VX 520 REFERENCE GUIDE 98
- CHAPTER 6 99
- Download Tools 100
- Download 101
- Full and Partial 102
- Downloads 102
- ERFORMING DOWNLOADS 103
- EFERENCE GUIDE 103 103
- Multiple 104
- Applications 104
- Support for 104
- Use of RAM and 105
- Flash Memory 105
- 106 VX 520 REFERENCE GUIDE 106
- Redirecting Files to 107
- Other File Groups 107
- 108 VX 520 REFERENCE GUIDE 108
- EFERENCE GUIDE 109 109
- Authentication 110
- Requirements 110
- PERFORMING DOWNLOADS 111
- VX 520 R 111
- GUIDE 111 111
- 112 VX 520 REFERENCE GUIDE 112
- EFERENCE GUIDE 113 113
- 114 VX 520 REFERENCE GUIDE 114
- GUIDE 115 115
- 116 VX 520 REFERENCE GUIDE 116
- Effect of 117
- Downloads on 117
- Existing Files 117
- Set Up the 118
- Environment 118
- EFERENCE GUIDE 119 119
- EFERENCE GUIDE 120
- Step Display Action 121
- Application 122
- Direct Application Downloads 123
- GUIDE 123 123
- Direct Operating 127
- Download by 131
- Telephone 131
- Back-to-Back 135
- EFERENCE GUIDE 137 137
- 138 VX 520 REFERENCE GUIDE 138
- EFERENCE GUIDE 139 139
- Download from a 140
- USB Flash Drive 140
- GUIDE 141 141
- 142 VX 520 REFERENCE GUIDE 142
- Procedure 143
- CHAPTER 7 147
- External 148
- Dimensions 148
- CHAPTER 8 149
- 150 VX 520 REFERENCE GUIDE 150
- CHAPTER 9 151
- Accessories and 152
- Documentation 152
- VERIFONE SERVICE AND SUPPORT 153
- Accessories and Documentation 153
- GUIDE 153 153
- 154 VX 520 REFERENCE GUIDE 154
- CHAPTER 10 155
- 156 VX 520 REFERENCE GUIDE 156
- Transactions 157
- Fail To Process 157
- 158 VX 520 REFERENCE GUIDE 158
- APPENDIX A 159
- DOWNLOADING ERRORS 160
- Table 23 Error Messages 160
- Display Action 160
- EDIT PARAMETERS ERROR 161
- PASSWORD ERRORS 161
- PRINTER DIAGNOSTICS ERRORS 161
- REMOTE DIAGNOSTICS ERROR 162
- SMART CARD DIAGNOSTICS ERRORS 162
- STARTUP ERRORS 163
- Information 164
- Messages 164
- Table 24 Information Messages 165
- ERROR LOG 166
- YSTEM MESSAGES 167
- EFERENCE GUIDE 167 167
- PASSWORD INFORMATION 168
- STARTUP INFORMATION 170
- EFERENCE GUIDE 171 171
- APPENDIX B 173
- Ethernet Port 174
- USB Pinout 174
- DC Input Jack 174
- Polarity 174
- APPENDIX C 175
- 176 VX 520 REFERENCE GUIDE 176
- APPENDIX D 177
- Dual Keypress 178
- Auto-repeating Keys 178
- GLOSSARY 179
- 180 VX 520 REFERENCE GUIDE 180
- VX 520 REFERENCE GUIDE 181 181
- 182 VX 520 REFERENCE GUIDE 182
- VX 520 REFERENCE GUIDE 183 183
- 184 VX 520 REFERENCE GUIDE 184
- VX 520 REFERENCE GUIDE 185 185
- 186 VX 520 REFERENCE GUIDE 186
- GUIDE 187 187
- 188 VX 520 REFERENCE GUIDE 188
- GUIDE 189 189
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