Methods and systems involving secure RAM
US8959311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2006 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Apr 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1491
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system is provided that includes a processor and a random access memory (RAM) coupled to the processor. The RAM is divided into public RAM and secure RAM. The system also includes a system memory coupled to the processor, wherein the system memory stores RAM resize instructions that, when executed, enable the public RAM and the secure RAM to be dynamically resized. The system memory may also store save/restore secure RAM instructions that, when executed, perform a save operation that saves the secure RAM to non-volatile memory and a restore operation that restores the secure RAM from the non-volatile memory. The system memory may also store arbitration instructions that, when executed, enable a cryptographic hardware accelerator (HWA) to be shared by a secure application and a public application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.