ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,347, issued on Aug. 19, was assigned to CISCO TECHNOLOGY INC. (San Jose, Calif.).
"Keyword search for an encrypted messaging system" was invented by Alan Cronin (Galway, Ireland), William Ward (Galway, Ireland) and Declan Michael McAuley (Galway, Ireland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques to index and search encrypted content are presented. A method includes assigning a unique encryption key to an organization (Org_Key) of which a user is a member, storing a first mapping of a user ID of the user to a resource ID of a resource, storing a second mapping of a first hash of the unique encryption key and the plaintext word to the ...