Patent · US Active

Decentralized multi-authority attribute-based inner-product functional encryption

US12395321B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

NTT Research, Inc. · US

Inventors

Pratish Datta · Sunnyvale, US
Monosij Maitra · Darmstadt, DE
Tapas Pal · Tokyo, JP

Key dates

Filing date	Mar 30, 2023
Grant date	Aug 19, 2025
Priority date	—
Expiry date	Jan 13, 2044

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/30
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A decentralized multi-authority attribute-based inner-product functional encryption FE (MA-ABIPFE) scheme in the prime-order bilinear groups under target-group-based assumptions is used for encryption. In some embodiments, any party can become an authority and there is no requirement for any global coordination other than the creation of an initial set of common reference parameters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.