US Patent Issued to CISCO TECHNOLOGY on April 7 for "History access for end-to-end (E2E) secure content" (California, Virginia Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,061, issued on April 7, was assigned to CISCO TECHNOLOGY INC. (San Jose, Calif.).

"History access for end-to-end (E2E) secure content" was invented by Richard Lee Barnes (Arlington, Va.) and Brian Christopher Powell (El Segundo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "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."

The patent ...