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Cloud Services Provide a Path to Embedded Security

Internet connectivity provides the means to add huge value to embedded systems, yet that same connectivity can be a threat to the integrity of devices and the IoT applications that are being built using them. By using smart design techniques, it is possible to turn this situation around. With the right foundations, internet-connected embedded and IoT devices can leverage online services to provide long-term security and protect the network, even if individual nodes are, at some point, compromised. Achieving the required level of security is complex but solutions are now appearing that provide a package of measures and facilities that address the different threats: an example is Microsoft’s Azure Sphere and its embedded Pluton security subsystem.

Hardware essentials for IoT Security

ACloud Service fundamental requirement of IoT device security is one of system integrity. The device must be protected against unauthorized modification and intrusion. Hackers are resourceful and will exploit any weaknesses they can identify to try to compromise a system. Layered security is a means by which OEMs can reduce their vulnerability to successful attempts to compromise part of a system. For example, the buffer overflow is a commonly exploited mechanism used to penetrate a system and works by taking advantage of the layout of data in memory. Oversized network packets can lead to code provided by the hacker being stored outside the memory allocated to network buffers and then be inadvertently executed by the target system. From the hacker’s perspective this provides a point at which they can upload a new executable image.

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BiS Team

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