Patent · US Active

Intermediate encryption for exposed content

US10686827B2 · kind B2 · utility

2Cited by

32References

20Claims

0Family size

Assignee

Sophos Limited · GB

Inventors

Harald Schütz · Linz, AT
Anthony John Merry · Kessel-Lo, BE
Kenneth D. Ray · Seattle, US
Andreas Berger · Therwil, CH

Key dates

Filing date	Apr 14, 2016
Grant date	Jun 16, 2020
Priority date	—
Expiry date	Apr 14, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/068
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An endpoint encrypts local files with a key to protect file contents. If the endpoint or processes on the endpoint becomes exposed to potentially harmful locations or resources, the key can be revoked to prevent access to encrypted files on the endpoint. In order to facilitate continued operation of the endpoint, files that are currently open can be encrypted with a second key so that the corresponding data is isolated from the other encrypted files while remaining accessible to current users.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.