Implementing access control by system-on-chip
US9853974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2145
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise an access control unit employed to: receive a message comprising an access control data item; validate the message using a value of a message digest function of contents of the message and a value of a state variable reflecting a state of communications between the access control unit and a programming agent that has initiated the message, wherein the value of the state variable is derived from a previous value of the message digest function calculated within a current communication session between the access control unit and the programming agent; update the state variable using the value of the message digest function of the contents of the message; and control, using the access control data item, access by an initiator device to a target device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.