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:
Apr. 07, 2026
Filed:
Jan. 22, 2024
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Richard Lee Barnes, Arlington, VA (US);
Brian Christopher Powell, El Segundo, CA (US);
Assignee:
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/40 (2022.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0836 (2013.01); H04L 9/0822 (2013.01); H04L 9/0833 (2013.01); H04L 9/0861 (2013.01); H04L 9/0891 (2013.01); H04L 9/0894 (2013.01); H04L 63/064 (2013.01); H04L 9/088 (2013.01); H04L 9/14 (2013.01); H04L 63/068 (2013.01);
Abstract
An embodiment provides new joiners to a conversation with access to historical keys using an encrypted skip list that can be safely stored on untrusted servers. This list provides random access to conversation content with logarithmic complexity (queries and data size), and imposes small (log-scale) overhead on linear/full access to the conversation content.