Secure integrated device with secure, dynamically-selectable capabilities
US6968453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2001 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Oct 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, computer program product, and method of doing business by providing a secure integrated device (such as a pervasive computing device) for which operating capabilities can be dynamically yet securely selected (including, but not limited to, pluggable connection of input/output devices and/or application processors that provide selected functions). Each input/output (I/O) device and application processor to be used is plugged in to a bus of a security core, and authenticates itself to the security core using public key infrastructure techniques, thereby creating a secure multi-function device. All of the multi-function device's input and output interactions with its environment necessarily traverse an I/O bus under the sole control of the security core. The only communication path between an application processor and the external environment (such as an I/O device) is through an application processor bus, which is likewise under control of the security core. Thus a user may dynamically yet securely select the capabilities of a multi-function device, and because each I/O device and application processor in use by that multi-function device is authenticated, the secur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.