Cryptographic device for calculating a block cipher
US10685587B2 · kind B2 · utility
1Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2016 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cryptographic device (100) calculates a block cipher (500) on a block cipher input (105) and produces a block cipher output (106). The block cipher calculation operates on encoded values (210). The cryptographic device includes a round function unit (140; 300) for applying the final round (118) of the multiple rounds of cryptographic processing implementing the block cipher. A first output unit (160) and second output unit (180) decodes encoded output data (132, 152).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.