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    Arm Introduces IoT Platform Security Architecture at TechCon 2017

    Written by

    Jeffrey Burt
    Published October 24, 2017
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      SANTA CLARA, Calif.—For most of its history, Arm has been known for the highly-efficient chips that helped drive the development and popularity of the smartphone and fuel the mobile device movement that steamrolled rival Intel.

      While that maturing market is still important to the company, since its acquisition last year by Japanese IT giant SoftBank for $32 billion, Arm has begun to focus even more tightly on the burgeoning internet of things.

      That focus is on display this week at the company’s TechCon 2017 show here. Arm has always had a natural role in IoT technology, with many of its low-power system-on-a-chip (SoC) designs finding their way into not only smartphones and tablets but also embedded systems. The company three years ago also launched its Mbed IoT platform and operating system for internet-connected devices. It has since added the Mbed Cloud for improved device management and security.

      At the TechCon show Oct. 24, Arm officials introduced a framework for developing secure connected devices that they hope the industry will adopt to help drive the scalability of the IoT. Called the Platform Security Architecture (PSA), the framework includes IoT threat models and security analytics capabilities, hardware and firmware requirements and specifications, and a reference open-source implementation of the firmware spec called Trusted Firmware-M.

      At the silicon level, the company unveiled on-die threat mitigation technology as well as an extension to its Mbed Cloud platform—called Mbed Edge—to help product designers, developers and businesses better secure the various devices, such as gateways, that sit between the end devices and the cloud.

      Arm’s efforts in the IoT accelerated after the SoftBank acquisition, when the SoftBank Chairman and President Masayoshi Son addressed the TechCon 2016 crowd and offered a vision of 1 trillion connected devices.

      It’s a tall order, Dipesh Patel, president of Arm’s IoT Services Group (pictured), said during his keynote address, but it’s one the company is aiming for. Both he and Arm CTO Mike Muller said that for that scalability to become a reality, people have to trust the connected devices.

      “Security can’t be optional for the IoT to scale,” Muller said from the stage.

      Patel noted that at the current rate of growth, the number of connected devices worldwide will hit 62 billion in 10 years and 125 billion in 20. But Patel argued that as the value of the IoT and the data it generates becomes more apparent to businesses, the growth will accelerate, bringing the industry closer to that goal of 1 trillion devices.

      Over the course of their talks, both Muller and Patel spoke about the need to make the IoT secure and trustworthy, and the PSA framework will drive that security, they said. It’s essentially a recommended architecture that includes a version of its TrustZone technology with specifications and requirements that can be used to build more secure IoT devices and platforms.

      Developers and businesses could the use the Mbed Cloud to manage these devices with such capabilities as over-the-air updates to ensure that the devices are as secure as possible.

      In the SoC, the company is introducing Simple and Differential Power Analysis (SPA/DPA) and Simple and Differential Electromagnetic Analysis (SEMA/DEMA) to protect against hackers trying to compromise confidential information—such as a secret cryptographic key—by analyzing the power consumed by an integrated circuit during operations and the electromagnetic fields created during the operations. Through the analyses, the SoC will be able to detect intrusions and attacks, officials said.

      Regarding Mbed Edge, Patel said that many IoT devices connect directly to the cloud. However, many more connect to the cloud through edge systems such as gateways, creating another level of devices that need to be secured and managed.

      The Mbed Edge suite will provide the security and management capabilities to the gateways and similar systems. Mbed Cloud will be in production this month, while Mbed Edge will be available for preview in the fourth quarter.

      The network edge is a key focus for many tech companies making moves in the IoT. The idea is to bring as much computing, storage, analytics and intelligence closer to the devices that are generating the massive amounts of data to reduce amount of bandwidth and power used in transmitting data between the edge and the cloud or central data centers, and to improve latency and security. Muller stressed that bringing machine learning closer to the edge will help drive improvements in those areas.

      The number of connected devices making up the IoT will continue to grow in the coming years, not only in the consumer market but also in industrial and commercial environments as well in legacy systems that will have enough intelligence to at least read data being collected, according to Patrick Moorhead, principal analyst with Moor Insights and Strategy.

      The IoT is “important for Arm because they want their architecture to be at the center of all these connected devices,” Moorhead told eWEEK.

      The chip market is currently dominated by Intel and Arm, though in the IoT, there also is competition from RISC-V and MIPS. Intel and Arm both are trying to establish their architectures in the IoT. Intel officials say their x86-based architecture reaches from the data center and cloud to the edge, with some presence in the end devices. Arm is working in the opposite direction, moving from its strength in end devices.

      Moorhead and other analysts at the show noted other efforts by the likes of Intel to establish IoT security frameworks for the industry. There also have been efforts by consortiums to create IoT standards for interoperability, though there has been some consolidation of these projects.

      Moorhead and others said they expect that the number of frameworks also will shrink as they move toward widespread industry acceptance. Too many specifications or reference architectures would only work to fragment the market and slow growth.

      In a press conference after the keynotes, both Muller and Patel stressed the role of the tech partner ecosystem around PSA as key to ensuring support for the multiple protocols that will be important as the IoT market matures.

      They view it as similar to how Arm operates its silicon business, where the company creates specifications and requirements in their CPU designs and then license those designs to partners such as Qualcomm and Samsung that put their own technologies on top of the design when they manufacture the chips.

      In announcing PSA, Arm listed dozens of vendors in such areas as servers, software, security and the cloud that are supporting the framework, including such big names as Amazon Web Services, Google Cloud, Baidu, Cisco Systems, Azure, Silicon Labs, Symantec, Sprint and BT.

      Jeffrey Burt
      Jeffrey Burt

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