US 11,792,013 B2
Cyber physical key
Stefan Thom, Snohomish, WA (US); David Thaler, Redmond, WA (US); and Torsten Stein, Snohomish, WA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on May 25, 2022, as Appl. No. 17/664,908.
Application 17/664,908 is a continuation of application No. 15/703,857, filed on Sep. 13, 2017, granted, now 11,374,760.
Prior Publication US 2022/0407711 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/32 (2006.01); H04L 9/40 (2022.01); G06F 21/62 (2013.01); G06F 21/34 (2013.01)
CPC H04L 9/3234 (2013.01) [G06F 21/34 (2013.01); G06F 21/62 (2013.01); H04L 9/3263 (2013.01); H04L 63/0853 (2013.01); H04L 63/10 (2013.01); H04L 63/0823 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a processor; and
a memory communicatively coupled to the processor and storing computer-executable instructions that, when executed by the processor, perform operations comprising:
providing, by a cyber key device, an access control change instruction to an access configuration controller of an asset, the access control change instruction being signed by a private cryptographic key stored by the cyber key device, the private cryptographic key being secured using a trusted environment mechanism of the cyber key device; and
based on the access control change instruction, receiving, by the cyber key device, access to a first access authorization record for the asset, the first access authorization record being stored in a storage system secured by the access configuration controller and defining credentials authorizing access to the asset, the access configuration controller storing a public cryptographic key controlling access to the first access authorization record as an unalterable memory record.