Patent · US Active

Confidential extraction of system internal data

US9779258B2 · kind B2 · utility

0Cited by

12References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

William E. Hall · Clinton, US
Andreas C. Koenig · Rockford, US
Cedric Lichtenau · Stuttgart, DE
Elaine R. Palmer · Hanover, US
Thomas Pflueger · Echterdingen, DE
Peter A. Sandon · South Burlington, US

Key dates

Filing date	Oct 28, 2015
Grant date	Oct 3, 2017
Priority date	—
Expiry date	Dec 23, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/0825
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Secure extraction of state information of a computer system is provided. A method includes obtaining, by a security engine of a system, a public encryption key associated with a private decryption key; generating an extraction key that is inaccessible outside of the security engine; encrypting the extraction key with the public encryption key, to thereby obtain an encrypted extraction key; collecting state information of the system; encrypting the collected state information with the extraction key and storing the encrypted collected state information; and based on a request for access to the stored encrypted collected state information by a request for the extraction key, providing the extraction key to facilitate decryption of the stored encrypted state information.

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