Methods and apparatus for secure and efficient implementation of block ciphers
US11139953B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2017 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Feb 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of and apparatus for executing a cryptographic cipher is described. The method includes acts of receiving a first finite field of data and key value represented by a first encryption standard including a first and second operation, transforming the first finite field of data and key value into a second finite field of data and key value represented by a second encryption standard, transforming the first operation and the second operation into a first modified operation and a second modified operation represented by the second encryption standard, executing the first modified operation on the second finite field of data and key value to generate a third finite field of data, executing the second modified operation on the third finite field of data to generate a fourth finite field of data, which is transformed into a fifth finite field of data represented by the first encryption standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.