Wireless: Free software enhances remote keyless entry security

Freescale Semiconductor has developed a variable key security protocol software library designed to enhance the security of remote keyless entry systems for industrial and other applications.


Remote keyless entry (RKE) systems make it easy to open a car or garage door, operate a wireless alarm system, or change climate control settings with the click of a button. With this added convenience comes the threat of theft and other security vulnerabilities. To address these concerns, Freescale Semiconductor developed a variable key security protocol (VKSP) software library designed to enhance the security of RKE systems used for industrial, automotive, and consumer applications. It is free of charge to developers using Freescale embedded products.
The company says its VKSP software library provides an alternative, end-to-end solution for applications that currently use radio frequency (RF), RKE and passive-entry systems. Using a key fob or similar wireless device, RKE systems enable users to release trunk latches, unlock doors to cars and buildings, and remotely control any function that requires authentication prior to use or entry. Traditional RF-based RKE systems employ limited commands and are vulnerable to outside intrusion or user-related errors. Intrusions and malfunctions can trigger the system to re-sync with the receiver, resulting in unwanted delays in operation.
Unlike traditional RF and RKE system approaches, Freescale’s software library is said to support one-way authentication with a 128-bit key. It also features a time-based algorithm that does not require resynchronization if the key fob button is pressed many times when out of range of the receiver. The software library provides 254 different commands and uses a layer design on the receiver and transmitter, providing user flexibility with different non-volatile memory and encryption drivers.
The company says the receiver is designed as a state machine system, which eases the integration and interaction with other complex modules.
The VKSP software library provides a comprehensive solution for RKE systems based on Freescale’s microcontrollers (MCUs). It also offers developers the ability to design-in the VKSP software library with their proprietary systems.
The complimentary VKSP software library is available for use with Freescale’s S08 MCUs. Freescale plans to offer the software for other Freescale MCU families in the near future.
To help simplify the design process with VKSP software, Freescale offers the KITVKSP-EVAL evaluation kit featuring three development boards:
• DEMO9S08SH8 demonstration board (receiver main board) based on Freescale’s MC9S08SH8 8-bit MCU;
• MC33696MOD434EV RF transceiver module used with the DEMO9S08SH8 board; based on Freescale’s 433MHz MC33696 UHF transceiver; and
• VKSP-KEYFOB battery-powered transmitter board based on the ultra low power MC9S08QE8 MCU.
Each board can be ordered separately. The KITVKSP-EVAL kit and the VKSP-KEYFOB board suggested prices are $149.99 and $34.99, respectively. The evaluation system ships with a DVD featuring a Special Edition of the CodeWarrior tool suite and the free VKSP software library. Code examples, walkthroughs and user manuals also are available to augment developers’ productivity.
C.G. Masi , senior editor
Control Engineering Machine Control eNewsletter
Register here and scroll down to select your choice of eNewsletters free.

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
Mobile HMI; PID tuning tips; Mechatronics; Intelligent project management; Cybersecurity in Russia; Engineering education; Road to IANA
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me