Circuit and method for the securing of a coprocessor dedicated to cryptography
US6971020B1 · kind B1 · utility
3Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A circuit and a method are provided for securing a coprocessor dedicated to cryptography. The disclosed circuit includes a scrambling register and an accessory input register to convey scrambling information in the form of electrical signals that disturb the visibility of certain electrical signals associated with confidential information such as digital keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.