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Azure Sphere creates an end-to-end, highly secure IoT solution for customers that encompasses everything from the hardware and operating system on the device to the secure method of sending messages from the device to the message hub. Azure Sphere has built-in communication and security features for internet-connected devices.
Azure Sphere comes in three parts:
The second part is a customized Linux operating system (OS) that handles communication with the security service and can run the vendor’s software.
The third part is Azure Sphere Security Service, also known as AS3. Its job is to make sure that the device has not been maliciously compromised. When the device attempts to connect to Azure, it first must authenticate itself, per device, which it does by using certificate-based authentication. If it authenticates successfully, AS3 checks to ensure that the device hasn’t been tampered with. After it has established a secure channel of communication, AS3 pushes any OS or approved customer-developed software updates to the device.
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