Systems and methods for controlling access to encrypted data stored on a mobile device
US8166297B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Encrypted data on mobile devices is protected by remotely storing a decryption key. In order to decrypt the encrypted data on the mobile device, the mobile device obtains the decryption key from an access control system that is remote from the mobile device. The access control system can control access to the encrypted data by controlling access to the decryption key. For example, the access control system can implement user authentication as a condition for providing the decryption key. Access to the encrypted data can also be controlled by withholding the decryption key where, for instance, a mobile device has been reported to be lost or stolen, or once an individual's access privilege has been revoked, or at certain times of the day.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.