The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2024
Filed:
Apr. 06, 2022
Dell Products L.p., Round Rock, TX (US);
Niharika Avasarala, Cupertino, CA (US);
Mahadev Karadigudda, San Jose, CA (US);
Nitin Madan, Cupertino, CA (US);
Madhu Agrahara Gopalakrishna, Fremont, CA (US);
Dell Products L.P., Hopkinton, MA (US);
Abstract
Embodiments of a cryptographic key management system for cached data that efficiently re-encrypts cached data encrypted with a compromised encryption key by receiving a request to access a cached data block encrypted with an original encryption key. Upon determining that the original encryption key is compromised or destroyed, thus resulting in the requested data block being invalid, evicting the requested data block from the cache storing the cached data. The data block is re-encrypted using a new encryption key upon receipt of a new request to access the cached data. Any remaining cached data encrypted with the original encryption key is evicted from the cache through a defined cache eviction policy.