FTDI USB-KEY - FTDI - Pdf.Support

Future Technology Devices International

373 Scotland Street, Glasgow G5 8QB

Tel.: +44 (0) 141 429 2777

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in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in pers

provides prel

iminary information that may be subject to change without notice.

the publication of this document. Future Technology Devices International Ltd, 373 Scotland Street, Glasgow G5 8

Registered Number: SC136640

Future Technology Devices International Ltd

Doc

Future Technology Devices International

Ltd (FTDI)

373 Scotland Street, Glasgow G5 8QB

United Kingdom

Tel.: +44 (0) 141 429 2777

Fax: + 44 (0) 141 429 2758

Mail (Support):

support@ftdichip.com Web:

http://www.ftdichip.com

of the information contained in, or the product described in this manual, may be adapted or reproduced in any material or

electronic form without the prior written consent of the copyright holder. This product and its documentation are supplied on

as to their suitability for any particular purpose is either made or implied. Future Techn

ology Devices International Ltd

will not accept any claim for damages

howsoever arising as a result of use or failure of this product. Your st

atutory rights are not affected. This product or any variant of it is not intended for use

in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in pers

iminary information that may be subject to change without notice.

No freedom to use patents or other intellectual property rights is implied by

the publication of this document. Future Technology Devices International Ltd, 373 Scotland Street, Glasgow G5 8

Future Technology Devices International Ltd

USB-Key

Datasheet

Doc

ument Reference No.: FT_000062

Version 1.00

Issue Date: 2008-07-17

http://www.ftdichip.com

of the information contained in, or the product described in this manual, may be adapted or reproduced in any material or

electronic form without the prior written consent of the copyright holder. This product and its documentation are supplied on

an as-is basis and no warranty

will not accept any claim for damages

atutory rights are not affected. This product or any variant of it is not intended for use

in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in pers

onal injury. This document

No freedom to use patents or other intellectual property rights is implied by

the publication of this document. Future Technology Devices International Ltd, 373 Scotland Street, Glasgow G5 8

QB United Kingdom. Scotland

Future Technology Devices International Ltd

Document Reference No.: FT_000062

USB-Key Datasheet Version 1.00

Clearance No.: FTDI# 41

Table of Contents

Introduction............................................................................................ 2

1.1 Overview .............................................................................................................. 2

1.2 Features and Applications .................................................................................. 2

1.3 USB Key Connections ......................................................................................... 2

FTDI USB KEY User Guide .................................................................... 3

2.1 USB Connection .................................................................................................. 3

2.2 Reading The FTDIChip-ID™ USB Key ............................................................... 3

2.3 Basic Description of the FTDIChipID Function calls ........................................ 3

2.4 Using the EEPROM Writeable Area of the FTDI USB Key. ............................... 4

2.5 Viewing Contents of FTDI USB Key ................................................................... 4

Application Examples ........................................................................... 5

3.1 Security Dongle Using SafeGuard-IT ................................................................. 5

Mechanical Dimensions ........................................................................ 6

Contact Information............................................................................... 7

Appendix A – FTDI USB Key FT232R EEPROM Configuration................................... 8

Appendix B – Revision History ..................................................................................... 9

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1 Introduction

1.1 Overview

The FTDI USB Key is security device which has a unique identification number burnt into it

during manufacture. This is the FTDIChip-ID™ number.

This FTDIChip-ID™ number is only readable over the USB interface making it an ideal “key” for

“unlocking” particular applications.

1.2 Features and Applications

The FTDI USB Key has the following features:

• Simple to use USB interface to any USB host or hub.

• Unique FTDIChip-ID™ number can be used to provide a security dongle for software

applications.

• Additional security possible by encrypting the FTDIChip-ID™ number and storing in EEPROM

writeable area of FTDI USB Key.

• Enhanced security protection using SafeGuard-IT Active-X control for Windows. This can be used

to generate asymmetric public-private key encryption to provide secure dongle functionality.

• USB Key can be used to unlock security systems – access control.

• Password protected access.

1.3 USB Key Connections

The USB Key connects to PC USB interface. The following Table 1.1 describe the function of the

connector:

Pin Number Name Type Description

1 VBUS Power Input +5V from USB bus

2 D- Input Data Minus

3 D+ Input Data Plus

4 GND Power Input 0V

5 GND Power Input 0V

Table 1.1 USB Connector Signal Description

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2 FTDI USB KEY User Guide

The following illustration, Figure 2.1, shows a representation of the FTDI USB Key unit. The user interface is

described below.

Figure 2.1 FTDI USB Key Illustration.

2.1 USB Connection

The FTDI USB Key module connects to a USB hub or host port via the USB connector. This will

supply power to the FTDI USB Key.

2.2 Reading The FTDIChip-ID™ USB Key

The unique FTDI USB Key FTDIChip-ID™ number can only be read using function calls from

the FTDChipID.dll. This DLL can be downloaded from the FTDI website for Windows (V1.1.0),

Linux (V0.1.0) and Mac OS X (V0.1.0). The D2XX drivers must also be installed. The drivers

can be downloaded from http://www.ftdichip.com/Drivers/D2XX.htm

The FTDChipID.dll and the D2XX.dll can reside in the same directory.

An FTDIChip-ID™ programmer's guide gives details of how to use the DLL and is available

from the http://www.ftdichip.com/Documents/ProgramGuides.htm page. The programmers

guide lists the function calls which need to be used by the software application to identify the

unique FTDIChip-ID™ number.

2.3 Basic Description of the FTDIChipID Function calls

The following list gives a brief description of the function calls available in order to obtain the

FTDIChip-ID™ number when using the FTDChipID.dll

• FTID_GetNumDevices - returns the number of devices attached on the USB bus.

• FTID_GetDeviceSerialNumber - Given a device index return the device serial number.

• FTID_GetDeviceDescription - Given a device index returns with description of the

device.

• FTID_GetDeviceLocationID - Given a device index returns with location ID.

• FTID_GetDeviceChipID - Given a device index returns the unique FTDIChip-ID™

number of the device.

• FTID_GetChipIDFromHandle - Given a device handle returns the unique FTDIChip-ID™

(must use a valid D2XX device handle).

• FTID_GetDllVersion - get the dll version.

• FTID_GetErrorCodeString - get the English translation of the error code.

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2.4 Using the EEPROM Writeable Area of the FTDI USB Key.

To further improve security, the unique FTDIChip-ID™ number read from the FTDI USB Key

can be read, further encrypted and written back to a EEPROM user accessible area within the

FTDI USB Key. This further security could make use of industry standard encryption methods

(DES, 3DES, AES, Blowfish for example) plus make use of a timestamp for registration

purposes. To access this user area it is necessary to use the FT_EE_UASize, FT_EE_UAWrite

and the FT_EE_UARead function calls available in the D2XX.dll. This DLL is available from the

FTDI driver download area at D2XX Direct Drivers. The D2XX programmers guide is also

available from D2XXPG34.pdf.

The amount of EEPROM user available space available varies depending on what data has

already been written to the EEPROM. Generally, the longer the strings written to the EEPROM,

the less free space available. Users should check that sufficient space is available to write back

any further encrypted data.

2.5 Viewing Contents of FTDI USB Key

The FTDI USB Key Device Descriptors and Configuration Descriptors can be read using the

USBView software utility.

USBView can be downloaded free from the FTDI website at

http://www.ftdichip.com/Resources/Utilities.htm

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3 Application Examples

Numerous examples showing how to access the unique FTDIChip-ID™ number is given in

many different software languages on the FTDI website at

http://www.ftdichip.com/Projects/FTDIChip-ID.htm

3.1 Security Dongle Using SafeGuard-IT

SafeGuard-IT is an ActiveX control for Windows which works with the FTDI_USB_KEY to

provide security dongle functionality. The SafeGuard-IT component works by exploiting the

FTDIChip-ID™ feature of the FT232R within the FTDI-USB-KEY together with an asymmetric

public-private key encryption scheme.

The SafeGuard-IT security scheme works as follows:

1. Generate a public-private key pair using the SafeGuard-IT ActiveX control. These keys should be

saved to files.

2. Encrypt the FTDIChip-ID using the private key and an optional password. This encrypted

information is then stored in the FTDI_USB_KEY.

3. Distribute the programmed FTDI_USB_KEY with the application software. The Safeguard-IT DLL

file and the public key are also required by the application software.

4. When the application software is loaded, it can use the SafeGuard-IT control to verify that the

required FTDI_USB_KEY device is connected to the client PC. This can be used to prevent

software from running if a licensed dongle is not connected.

The SafeGuard-IT ActiveX control and SafeGuard-IT.dll are available free from the FTDI

website http://www.ftdichip.com/Projects/SafeGuard-IT/SafeGuard-IT.zip

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4 Mechanical Dimensions

Figure 4.1 USB Key Dimensions

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5 Contact Information

Head Office – Glasgow, UK

Future Technology Devices International Limited

373 Scotland Street

Glasgow G5 8QB

United Kingdom

Tel: +44 (0) 141 429 2777

Fax: +44 (0) 141 429 2758

E-mail (Sales) sales@ftdichip.com

E-mail (Support) support@ftdichip.com

E-mail (General Enquiries) admin1@ftdichip.com

Web Site URL http://www.ftdichip.com

Web Shop URL http://apple.clickandbuild.com/cnb/shop/ftdichip

Branch Office – Taipei, Taiwan

Future Technology Devices International Limited (Taiwan)

4F, No 18-3, Sec. 6 Mincyuan East Road

Neihu District

Taipei 114

Taiwan, R.O.C.

Tel: +886 (0) 2 8791 3570

Fax: +886 (0) 2 8791 3576

E-mail (Sales) tw.sales1@ftdichip.com

E-mail (Support) tw.support1@ftdichip.com

E-mail (General Enquiries) tw.admin1@ftdichip.com

Web Site URL http://www.ftdichip.com

Branch Office – Hillsboro, Oregon, USA

Future Technology Devices International Limited (USA)

7235 NW Evergreen Parkway, Suite 600

Hillsboro, OR 97123-5803

USA

Tel: +1 (503) 547 0988

Fax: +1 (503) 547 0987

E-Mail (Sales) us.sales@ftdichip.com

E-Mail (Support) us.admin@ftdichip.com

Web Site URL http://www.ftdichip.com

Distributor and Sales Representatives

Please visit the Sales Network page of the FTDI Web site for the contact details of our

distributor(s) and sales representative(s) in your country.

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Appendix A – FTDI USB Key FT232R EEPROM Configuration

This FT232R device within the FTDI_USB_KEY contains an EEPROM which contains the USB configuration

descriptors for that device. When the FTDI_USB_KEY is plugged into a PC or a USB reset is performed, the

PC will read these descriptors. The default values stored into the internal EEPROM are defined in Table 5.1

Parameter Value Notes

USB Vendor ID (VID) 0403h FTDI default VID (hex)

USB Product UD (PID) 6001h FTDI default PID (hex)

Serial Number Enabled? Yes

Serial Number See Note A unique serial number is generated and programmed into the

EEPROM during device final test.

Pull down I/O Pins in USB

Suspend Disabled Enabling this option will make the device pull down on the UART

interface lines when the power is shut off (PWREN# is high).

Manufacturer Name FTDI

Product Description FTDI USB-KEY

Max Bus Power Current 90mA

Power Source Bus Powered

Device Type FT232R

USB Version 0200

Returns USB 2.0 device description to the host.

Note: The device is be a USB 2.0 Full Speed device (12Mb/s) as

opposed to a USB 2.0 High Speed device (480Mb/s).

Remote Wake Up Disabled Taking RI# low will wake up the USB host controller from

suspend.

High Current I/Os Disabled Enables the high drive level on the UART and CBUS I/O pins.

Load VCP Driver Enabled Makes the device load the VCP driver interface for the device.

Invert TXD Disabled Signal on this pin becomes TXD# if enable.

Invert RXD Disabled Signal on this pin becomes RXD# if enable.

Invert RTS# Disabled Signal on this pin becomes RTS if enable.

Invert CTS# Disabled Signal on this pin becomes CTS if enable.

Table 5.1 Default Internal EEPROM Configuration

The internal EEPROM in the FT232R can be re-programmed over USB using the utility program MPROG.

MPROG can be downloaded from the www.ftdichip.com. Version 2.8a or later is required for the FT232R

chip. Users who do not have their own USB Vendor ID but who would like to use a unique Product ID in their

design can apply to FTDI for a free block of unique PIDs. Contact FTDI support for this service.

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Appendix B – Revision History

Version 1.00 Initial Datasheet Release July 2008