The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2015
Filed:
Oct. 11, 2013
Juergen Kremp, Walldorf, DE;
Klaus Kiefer, Heidelberg, DE;
Uwe Bauer, Weinsberg, DE;
SAP SE, Walldorf, DE;
Abstract
An improved key encryption system is provided for encrypting sensitive data on a shared data store. Various embodiments contemplate a system where a plurality of data clients are connected to one or more shared data stores. A secure data storage facility is provided on one or more of the shared data stores by using an encryption scheme. Encryption keys for decrypting the sensitive data are stored on the same data store as sensitive data which may be decrypted using the encryption keys in question. To provide another layer of protection, the data encryption keys are themselves encrypted using a key encryption key (KEK), which is generated by, and stored in a local persistent data store associated with the data clients.