Subject: General Tech | January 13, 2018 - 10:27 AM | Tim Verry
Tagged: WPA3, wifi alliance, wifi, wi-fi, networking, encryption
The Wi-Fi Alliance has announced an update to its Wi-Fi Protected Access (WPA) security suite in the form of WPA3. The first major update in more than a decade, WPA3 is a very welcome and much needed refresh with four new features aimed at both personal and enterprise networks.
Image courtesy Blue Coat Photos via Flickr Creative Commons.
The standards body did not go into many details on the new security suite, but did tease a few upcoming features in addition to closing known security vulnerabilities like KRACK. WPA3 uses a new 192-bit security suite "aligned with the Commercial National Security Algorithm (CNSA) suite from the Committee on National Security Systems" which is a collection of encryption techniques and algorithms that are reportedly up to the task of maintaining confidentiality on personal, enterprise, and industrial networks. Open Wi-Fi networks in particular will get the biggest boost from moving to WPA3 with support for individualized data encryption so that communication channels between the access point and users' devices are secured on a per-device basis. Personal networks also get improved security in the form of protections to protect users against themselves and maintain strong encryption even when they choose weak passwords. Setting up these security configurations is also being considered, and the Wi-Fi Alliance is promising easier configuration on devices with limited or no displays.
I am looking forward to more information on WPA3 as an update to WPA2 has been a long time coming. WEP has long been a joke and WPA2 has been vulnerable for a while so I hope that WPA3 lives up to its promises! What is not clear from the announcement is that if new hardware will be required or if WPA3 could be implemented through firmware and software updates. End user devices may be trickier to get updates from manufacturers, but perhaps wireless routers and access points can be upgraded without needing to buy new hardware. I suppose it depends on if radio and other hardware like the hardware accelerators / co processors need upgraded to support the new algorithms or not. In any case if you have been eyeing a new Wi-Fi AP or wireless router, maybe hold off for a few months to see how this shakes out.
Stay tuned for more information as it develops. What are your thoughts on WPA3 and the Wi-Fi Alliance's promises?
Subject: General Tech | July 28, 2012 - 02:49 AM | Tim Verry
Tagged: wireless display, wifi alliance, widi, tegra 3, nvidia, miracast
NVIDIA has announced its support for a new wireless display technology called Miracast. The creation of the Wi-Fi Alliance and its partners, Miracast is a wireless technology that allows direct connections (sans router) between a Wi-Fi enabled device and a Wi-Fi enabled television set. It is a much more open standard than the proprietary technologies like Intel’s WiDi. Devices will require certification much like other Wi-Fi routers and wireless adapters. The Miracast standard certification program is set to launch soon with the standard’s specifications published sometime in August. Any device manufacturer will be able to use the standard and go through certification, though whether or not we will see the high adoption rate that many are hoping for remains to be seen.
Interestingly, it looks as though NVIDIA is going to be one of the first adopters of the Miracast standard by integrating it into its Tegra 3-powered mobile devices. Using the Tegra 3 “4+1”-core System on a Chip, NVIDIA plans to use the chip to encode the audio and video information and pass it to the Wi-Fi stack where it is passed, via Wi-Fi, to the wireless display. The company wants you to be able to use its mobile tablets and smartphones as a controller to be able to play media and even games on the big screen. According to a recent blog post, NVIDIA is “actively working with our OEM partners and Miracast receiver vendors to bring this technology to market.” The company has further promised more specific updates once the Wi-Fi Alliance finalizes the specification.
Miracast sounds good, as an open wireless display standard, but it is going to face some stiff competition from proprietary technologies. Apple’s Air Play, AMD's Wireless Display, Intel’s WiDi, and software like Android Transporter are all currently in use, and it is unlikely that those companies will forego the invested technology for an open standard. Miracast can certainly still work as a standard for all other devices, but that raises some questions. Mainly, whether or not a number of alternative devices using Miracast will be a large enough interest to compel display makers to support it. Hence my surprise when NVIDIA pledged its support, as it has the potential to be a big player in helping Miracast succeed. I'll remain skeptically optimistic on this one, but I'm curious what you think. Do you think that it will be successful as a wireless display standard?
You can read more about Miracast in this whitepaper (PDF).