Methods of operating a portable communications device with enhanced security
US8028067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2007 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Aug 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods of operating a portable communications device so as to provide communications security and user identification and authentication. In one embodiment, the method comprises placing the device in communication with an untrusted network, and using its security apparatus for creating associations with one or more security devices on the network. Traffic between the associated devices may be encrypted and protected for e.g., data confidentiality and integrity protection. In one variant, the security apparatus comprises a software entity disposed at least partly within the software stack of a host, and a removable security card. The portable device may be untrusted (e.g., have an untrusted operating system) and also be physically unsecure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.