Invention Grant
- Patent Title: System and method for unlocking an encryption key chain without compromising security
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Application No.: US16723466Application Date: 2019-12-20
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Publication No.: US11533168B2Publication Date: 2022-12-20
- Inventor: Martin Schindewolf , Meinolf Block , Christoph Höhner , Sascha Zorn
- Applicant: SAP SE
- Applicant Address: DE Walldorf
- Assignee: SAP SE
- Current Assignee: SAP SE
- Current Assignee Address: DE Walldorf
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H04L9/08
- IPC: H04L9/08 ; G06F16/27 ; G06F16/25 ; G06F21/62

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.
Public/Granted literature
- US20210194678A1 SYSTEM AND METHOD FOR UNLOCKING AN ENCRYPTION KEY CHAIN WITHOUT COMPROMISING SECURITY Public/Granted day:2021-06-24
Information query