Attribute-based encryption
US9800555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2013 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jul 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for attribute-based encryption comprises a first encrypter (11) and a second encrypter (12). The first encrypter (11) comprises an input unit (1) for determining a message and a policy over a set of attributes, wherein the policy comprises a plurality of components, and a first cryptographic unit (2) for generating an encrypted representation of the message and an encrypted representation of the plurality of components. The second encrypter (12) comprises a receiving unit (3) for receiving the encrypted representation of the message and the encrypted representation of the plurality of components, and a second cryptographic unit (4) for transforming the encrypted representation of the message and the encrypted representation of the plurality of components into an attribute-based encrypted message associated with the policy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.