US Patent Issued to NTT Research on Aug. 12 for "Broadcast encryption with improved resource utilization" (California Inventor)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,801, issued on Aug. 12, was assigned to NTT Research Inc. (Sunnyvale, Calif.).

"Broadcast encryption with improved resource utilization" was invented by Hoeteck Wee (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A broadcast network can use a pairing-based broadcast encryption scheme for N users with O(N1/3)-sized parameters. A pairing-based ciphertext-policy attribute-based encryption (CP-ABE) scheme for the class of degree 3 polynomials can be implemented with compact parameters. The public key, ciphertext and secret keys comprise O(n) group elements, where n is input length for the function. The constructions achieve adaptive securi...