Decryption device with variable clock
US5001756A · kind A · utility
8Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Aug 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A decryption device wherein an encryption/decryption module can be operated at various clock speeds, and wherein an associated processor controls these clock speeds depending upon the moment to moment processing interrelationship between the encryption/decryption module and the processor. In particular, when loading a new key into the encryption module, or when utilizing the encryption module to decrypt an encrypted new key, the processor alters the usual clock rate for the encryption module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.