Method and circuit for data encryption/decryption
US7801301B2 · kind B2 · utility
16Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2001 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Oct 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Data are converted between an unencrypted and an encrypted format according to the Rijndael algorithm, including a plurality of rounds. Each round is comprised of a fixed set of transformations applied to a two-dimensional array, designating states, of rows and columns of bit words. At least a part of the transformations are applied on a transposed version of the state, wherein rows and columns are transposed for the columns and rows, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.