US Patent Issued to NTT Research on Dec. 2 for "Decentralized multi-authority attribute-based encryption with fully adaptive security" (American, Israeli Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,627, issued on Dec. 2, was assigned to NTT Research Inc. (Sunnyvale, Calif.).

"Decentralized multi-authority attribute-based encryption with fully adaptive security" was invented by Pratish Datta (Sunnyvale, Calif.), Ilan Komargodski (Tel Aviv, Israel) and Brent Waters (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to systems, methods, network devices, and machine-readable media for encrypting and decrypting messages in a decentralized multi-authority attribute-based encryption (MA-ABE) scheme that is provably fully-adaptively secure, specifically, secure against an attacker that may corrupt some of the authoritie...