Decentralized multi-authority attribute-based encryption from bilinear diffie-hellman assumptions
US12375286B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 5, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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 for access structures described by monotone LSSS under the decisional bilinear Diffie-Hellman assumptions. The construction can also be modified to obtain an MA-ABE scheme under computational bilinear Diffie-Hellman assumptions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.