Patent · US Active

Method and apparatus for migrating a virtual TPM instance and preserving uniqueness and completeness of the instance

US7444670B2 · kind B2 · utility

11Cited by

0References

1Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Stefan Berger · Raubling, DE
Kenneth A. Goldman · Norwalk, US
Reiner Sailer · Scarsdale, US

Key dates

Filing date	Mar 21, 2006
Grant date	Oct 28, 2008
Priority date	—
Expiry date	Apr 26, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/127
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A migration scheme for virtualized Trusted Platform Modules is presented. The procedure is capable of securely migrating an instance of a virtual Trusted Platform Module from one physical platform to another. A virtual Trusted Platform Module instance's state is downloaded from a source virtual Trusted Platform Module and all its state information is encrypted using a hybrid of public and symmetric key cryptography. The encrypted state is transferred to the target physical platform, decrypted and the state of the virtual Trusted Platform Module instance is rebuilt.

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