US 12,452,040 B2
Contextual key management for data encryption
Mark Ian Gargett, Brighton (GB); Shashank Visweswara, Crawley (GB); Wayne Helm Gibson, Crawley (GB); and David Paul Webb, Seaford (GB)
Assigned to McAfee, LLC, San Jose, CA (US)
Filed by McAfee, LLC, San Jose, CA (US)
Filed on Feb. 26, 2024, as Appl. No. 18/587,518.
Application 18/587,518 is a continuation of application No. 17/222,720, filed on Apr. 5, 2021, granted, now 11,943,341.
Application 17/222,720 is a continuation of application No. 16/050,972, filed on Jul. 31, 2018, granted, now 10,972,258, issued on Apr. 6, 2021.
Prior Publication US 2024/0195609 A1, Jun. 13, 2024
Int. Cl. H04L 9/08 (2006.01); G06F 21/62 (2013.01)
CPC H04L 9/083 (2013.01) [G06F 21/62 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising:
interface circuitry;
computer readable instructions; and
at least one processor circuit to be programmed by the computer readable instructions to:
access a combination of context rules based on a key associated with encrypted data, the combination of context rules including at least two context rules;
obtain first context information and second context information associated with the combination of context rules, the second context information different from the first context information, the first context information specifying a geographic location of a requesting device associated with a request to access the encrypted data, the second context information specifying whether an access restriction is implemented by a destination device, the destination device to store decrypted data when obtained from the request to access the encrypted data; and
evaluate the combination of context rules based on the first context information and the second context information to validate the request.