Code diversity method and system
US9223945B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2015 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2107
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a processing device includes a memory to store an executable program including a multiplicity of encrypted component blocks such that different combinations of blocks selected from the encrypted component blocks are operative when decrypted and executed to perform a same functionally equivalent data transformation, each of the component blocks being operative upon execution to convert input data into output data, and a processor operative to receive a selection of cryptographic keys, decrypt some of the encrypted component blocks using the cryptographic keys such that each one of the some encrypted component blocks is decrypted with a different one of the cryptographic keys yielding a multiplicity of decrypted component blocks, and execute the executable program including the multiplicity of decrypted component blocks to perform the same functionally equivalent data transformation. Related apparatus and methods are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.