Systems and methods for protecting software
US9177111B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2006 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Mar 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/71
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A software protection system comprises a memory system and a microprocessing system. The memory system is configured to store a software program comprised of a plurality of program instructions that, when executed, have a program order. The microprocessing system is coupled to the memory system and is configured to, when executing the software program, determine a next program instruction of the plurality of program instructions in the program order based on an order identifier, fetch the next program instruction from the memory system, determine if the next program instruction requires decrypting, decrypt the next program instruction responsive to determining that the next program instruction requires decrypting, and execute the next program instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.