Single-chip virtualizing and obfuscating storage system for portable computing devices
US10325105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Feb 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/575
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In certain embodiments, an information obfuscation service may be incorporated directly into the main applications processor of a portable computing device such that the applications processor and its relevant storage peripherals may be securely shared via a virtualization firmware module, avoiding the use of specialized hardware or major modifications of the operating system. The virtualizing and obfuscating storage firmware module may enable a much higher level of assurance in information-at-rest protection while using only the memory protection and privilege mode facilities inherent in common portable device applications microprocessors. The virtualizing and obfuscating storage firmware may interpose storage accesses originating from the operating system. This interposition may be performed seamlessly, without explicit knowledge of the operating system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.