Portable secure media with timed erasure
US7735145B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2005 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Oct 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2143
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A timed erasure mechanism can be used with portable computer-readable media to ensure automatic erasure of secure information, minimizing the security risks in using such media to store and transport passwords, codes, keys and similar private setup information. The portable computer-readable media can comprise volatile memory and a timed erasure mechanism in the form of a power supply and discharging circuitry that discharges the power supply after a predetermined amount of time. Alternatively, the portable computer-readable media can comprise nonvolatile memory and a timed erasure mechanism in the form of a digital time and erasure algorithms that are initiated after a predetermined amount of time. Furthermore, such portable computer-readable media can comprise a container that bears unique physical properties that can alert users to the volatile nature of the media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.