Secure provisioning of a portable device using a representation of a key
US8254572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Feb 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A portable device initially accesses a secure server and requests a certificate. The secure server generates a random key and encodes the generated key to generate a representation of the key, such as a two-dimensional bar code or an audio signal, and communicated to a local device, such as a laptop or desktop computer, using a web interface. The local device is used to present the representation of the key to a mobile device. The mobile device then captures the representation of the key from the local device, for example using an image capture device or audio capture device, and extracts the key by decoding the representation of the key. The key is then stored by the mobile device and used to securely communicate with the secure server without manually entering the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.