System, apparatus and method for decentralizing attribute-based encryption information
US8516244B2 · kind B2 · utility
23Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jan 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for secure transmission of a message encrypted under an attribute based encryption scheme is provided. A first and a second authority parameter may be received from one or more authorities. A policy is generated based on the parameters. The generated policy comprises a flexible access control structure. A ciphertext is constructed based on the policy. To decrypt the ciphertext, key components are received from one or more authorities, the key components associated with a decryptor identifier. A decryption key is generated based on the policy and the key components. A plaintext is generated by decrypting the ciphertext.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.