US Patent Issued to NTT on May 5 for "Program execution system, data processing apparatus, program execution method, and program" (Japanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,146, issued on May 5, was assigned to NTT Inc. (Tokyo).

"Program execution system, data processing apparatus, program execution method, and program" was invented by Tetsuya Okuda (Tokyo) and Kenji Umakoshi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A program execution system includes a data processing apparatus that performs secret calculation in a secure area. The data processing apparatus includes circuitry configured to calculate a result that is obtained by executing a program on data in the secure area, the program being obtained by decrypting a re-encrypted program with a first secret key, and the data being obtained by decrypting re-...