Patent · US Active

Data coherency between trusted DBMS and untrusted DBMS

US10706039B2 · kind B2 · utility

0Cited by

4References

9Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Felix Beier · Haigerloch, DE
Nicole Ying Finnie · Eppelheim, DE
Namik Hrle · Eppelheim, DE
Einar Lueck · Bonlanden, DE

Key dates

Filing date	May 10, 2019
Grant date	Jul 7, 2020
Priority date	—
Expiry date	May 10, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/6227
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to a method for processing data in a database engine. The method includes storing a first instance of a first table in the database engine in plaintext. Encryption information about encryption methods and encryption keys of at least one predefined column of the first table may be maintained. In response to data changes in the column, first log entries for the data changes may be written in plaintext. The data changes may be encrypted by an encryption component using the encryption information. This results in encrypted data changes. Second log entries for the encrypted data changes may be written and applied to a second instance of the first table. The second instance of the first table is stored at a further database engine.

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