MIGRATING SECRETS USING HARDWARE ROOTS OF TRUST FOR DEVICES

摘要

Systems and methods facilitating a framework that provides a core trusted computing base (TCB) of an electronic device with various security capabilities. The framework can include a low-resource device and at least one distributed resource. The low-resource device can be configured to generate sealing keys, migration keys, and attestation keys that are based on a device secret associated with the low-resource device and one or more software modules. The low-resource device can further be configured to use the migration keys and the sealing keys to both verify a software update and migrate secrets from a previous version of the software to a newer version of the software. Additionally, the low-resource device can be configured to generate an attestation statement using the attestation keys and perform attestation using the attestation statement and the at least one distributed resource.

主权项

1. A device comprising:
a processor; and a computer-readable medium including modules, the modules when executed by the processor, configure the device to perform a secure boot process based at least in part on receiving an update for software, the modules comprising:
a cryptographic module configured to secure the device by:
generating a sealing seed;generating a migration key based at least in part on the sealing seed and at least one software descriptor associated with a previous version of the software; andgenerating a sealing key based at least in part on the sealing seed and at least one software descriptor associated with a new version of the software.