Program execution system, data processing apparatus, program execution method and program
US12407496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | May 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0435
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A program execution system includes a data holding apparatus, a program providing apparatus, and a data processing apparatus that performs computing in a secure region. The data holding apparatus transmits encrypted data, encrypted with a first common key, to the data processing apparatus, and the program providing apparatus transmits an encrypted program, encrypted with a second common key, to the data processing apparatus. In the secure region, the data processing apparatus acquires data by decrypting the encrypted data with the first common key, acquires a program by decrypting the encrypted program with the second common key, executes the program for the data, and encrypts a result of the execution with a public key of the data holding apparatus or the first common key. The data holding apparatus acquires the result of the execution by decrypting the encrypted result of the execution with a secret key or the first common key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.