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Sentinel appliance in an internet of things realm

  • US 10,205,712 B2
  • Filed: 09/25/2015
  • Issued: 02/12/2019
  • Est. Priority Date: 06/10/2015
  • Status: Active Grant
First Claim
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1. A sentinel device configured to provide Internet of things (IoT) security, comprising:

  • a hardware platform;

    a trusted execution environment (TEE) to execute on the hardware platform; and

    a security engine to operate within the TEE and operable to;

    communicatively couple to a trusted gateway device via a first interface and communicatively couple to a second device via a second interface;

    receive a domain security policy for a domain of the second device;

    determine that the second device lacks at least some security features to satisfy the domain security policy;

    identify a key negotiation for an encrypted connection between the trusted gateway device and the second device;

    request a service appliance key for the key negotiation;

    receive the service appliance key; and

    perform a service appliance function on traffic between the trusted gateway and the second device, comprising providing security functions to satisfy at least some of the security features lacking in the second device.

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