US Patent Issued to International Business Machines on Sept. 22 for "Encrypting existing databases with zero downtime and zero storage overhead" (Canadian Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,743,542, issued on Sept. 22, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Encrypting existing databases with zero downtime and zero storage overhead" was invented by Alexander French (Toronto), Walid Rjaibi (Markham, Canada), Kirby Chin (Richmond Hill, Canada), Kamran Mirshahi (Holland Landing, Canada) and Junseo Hwang (London, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, methods are provided for encrypting, decrypting, re-encrypting an existing database with neither downtime nor storage overhead. Create a list of tables to be processed. Identify status of each table by an indicator in a database catalog. Sto...