Over the years Bluetooth has evolved from being used mostly for audio streaming and file sharing with BT2.0, to high-speed file transfer with BT2.1. With the updates to BT4.x, it is now also used for extremely low energy connectivity requirements for many sensor based applications ideal for the Internet of Things.
A couple of months ago, a vulnerability in the way handshake within the WPA protocol was exposed commonly referred to as the Krack Attack. We at Silex have completed our thorough investigation to assess the scope and impact of this vulnerability.
Silex Technology America, Inc., a global leader in wired and wireless networking solutions, today announced the newest member of the SX-SDMAC family, the SX-SDMAC Plus wireless module. This dual-band IEEE 802.11a/b/g/n/ac WLAN plus Bluetooth 4.2 SDIO module fulfills a strategic role in Silex Technology’s embedded wireless product portfolio, opening new opportunities and markets.
Wireless drivers supporting Microsoft Windows for the SX-SDMAC and SX-SDPAC dual-band IEEE 802.11a/b/g/n/ac WLAN plus Bluetooth “Smart Ready” SDIO modules are now available by Silex. The new drivers add support for Windows 8, Windows 10, Windows 10 IoT Core, Windows Embedded Compact 7 (WEC7), and Windows Embedded Compact 2013 (WEC2013).
The SX-SDMAC module and SX-SDPAC System-in-Package (SiP) were initially released with support for Linux operating system (OS). Now Silex provides complete, production-ready Windows drivers to help customers modernize their Windows-based devices to the latest 802.11ac and Bluetooth 4.1 standards with reduced engineering lead time. Adding compatibility for Windows Embedded and Windows IoT Core allows the SX-SDMAC and SX-SDPAC to easily integrate with networked handheld devices, terminals, industrial computers, and IoT (Internet of Things) smart devices.
All protected Wi-Fi networks are secured using some version of Wi-Fi Protected Access (WPA/2) which rely on the 4-way handshake defined in the 802.11i amendment. Key Re installation AttaCK (KRACK) abuses design or implementation flaws in the WPA2 cryptographic protocols. KRACK works by targeting these 4-way handshakes and thus both WPA and WPA2-certified products are affected by this Krack Attack. 
WPA (sometimes referred to as the draft IEEE 802.11i standard) became available in 2003. To put things in perspective this issue has always been present for the last 14 years, but has recently gained quite a bit of attention. Let's first understand what this WPA2 vulnerability is and asses it's impact.
Since the news broke out last week, we at Silex have been working to assess the scope of its impact and a plan on how to provide our customers a solution to this WPA2 security issue. This update is to inform our customers the results of our investigation and a preliminary plan on next steps.
Our investigation has shown that:
Tags: enterprise security
Wi-Fi Enterprise Security is critical to Silex as we strive to provide secure, reliable and robust wireless connectivity solutions to our customers. We want to assure our customers that we are well aware of the recent KRACK attack threat to WPA2 Wi-Fi security, and we will be providing a solution imminently.
Recently published research in below references have identified vulnerabilities in some Wi-Fi devices. Those devices reinstall network encryption keys under certain conditions, disabling replay protection and significantly reducing the security of encryption. This security vulnerability is inherent to the WPA2 protocol itself, and in principle impacts all products using the WPA security supplicant.
Our SX-SDCAC which is in a SD card form factor (using the SX-SDMAC) is designed to allow evaluation of our QCA9377 based radios (SX-SDMAC and SX-SDPAC)) with the NXP's i.MX 6 SoloX Sabre SD board. To go with the hardware we also provide an evaluation software to make the evaluation process easy for our customers.
We have just released an update to our evaluation software.
Summary of Updates:
We have updated to support Linux kernel version 4.1. The most important enhancement in this release is the addition of roaming support. We in our internal testing had found that roaming was not working well in the QCA reference driver. Silex being a QCA partner has access to the radio firmware source code which enables us to fix bugs and in some cases even add features to the driver. Our reference driver now supports roaming with roam times under 150msec.
The evaluation image includes the Silex reference radio driver (with roaming support), supplicant and tools to test the following:
- Basic Wireless Functionality
- Advanced Wi-Fi Security
- Data Throughput
- Soft Access Point Mode
- DHCP Server and Client
Yes it can, and is now Available from Silex!!!
The Silex SX-SDMAC Plus is a dual-band IEEE802.11a/b/g/n/ac WLAN plus Bluetooth 4.2 SDIO module. It is the latest addition to our QCA9377 product family. This latest module is optimized for cost, size and performance. This module makes it a very viable option for customers who want to take advantage of the higher 802.11ac performance at a lower cost and smaller overall footprint.
Need a low-latency, high reliability solution in a small form factor for your wireless medical device? Or a low-cost low power wireless option for connected consumer electronics? Silex Technology has you covered. Check out our IoT module selection guide to find the right IoT Wi-Fi module to provide the connectivity you need.