Patent · US Active

System and method for unlocking an encryption key chain without compromising security

US11533168B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

SAP SE · DE

Inventors

Martin Schindewolf · Walldorf, DE
Meinolf Block · Heidelberg, DE
Christoph Hohner · Schwetzingen, DE
Sascha Zorn · Neulußheim, DE

Key dates

Filing date	Dec 20, 2019
Grant date	Dec 20, 2022
Priority date	—
Expiry date	Apr 18, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/0822
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The system described herein provides for storing the databases and encryption keys for decrypting the data in the databases into two separate partitions. In an embodiment, the first partition includes the databases while the second partition includes a configuration database and a payload database. The payload database stores a data encryption key for decrypting the data stored in the databases. The payload database is encrypted and may be decrypted using a body encryption key. The body encryption key itself is encrypted twice. In the first instance a key encryption key is generated and in the second instance a second access key is generated. The key encryption key or the second access key may be used to decrypt the body encryption key. The second access key is stored in a secure location, to be retrieved in situations when the key encryption key is inaccessible.

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