Using a trusted execution environment for a cryptographic key wrapping scheme that verifies remote device capabilities

The technology disclosed herein provides a cryptographic key wrapping system for verifying device capabilities. An example method may include: accessing, by a processing device, a wrapped key that encodes a cryptographic key; executing, by the processing device in a trusted execution environment, in...

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Bibliographische Detailangaben
Hauptverfasser: Bursell, Michael Hingston Mclaughlin, McCallum, Nathaniel Philip, Jones, Peter M
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The technology disclosed herein provides a cryptographic key wrapping system for verifying device capabilities. An example method may include: accessing, by a processing device, a wrapped key that encodes a cryptographic key; executing, by the processing device in a trusted execution environment, instructions to derive the cryptographic key in view of the wrapped key, wherein the executing to derive the cryptographic key comprises a task that consumes computing resources for a duration of time; using the cryptographic key to access program data; executing, by the processing device, the program data, wherein the executed program data evaluates a condition related to the duration of time; and transmitting a message comprising an indication of the evaluated condition.