Method and apparatus for hiding crytographic keys utilizing autocorrelation timing encoding and computation
US6041122A · kind A · utility
43Cited by
7References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1998 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Feb 27, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for hiding cryptographic keys based on autocorrelation timing attacks is provided. The method and apparatus of the present invention utilize a autocorrelation timing attack to allow independent software entities to authenticate themselves without storing a private cryptographic key. This is accomplished by storing timing statistics related to the evaluation of an equation in the software entity rather than the cryptographic key itself. When the software entity authenticates itself, the cryptographic key is derived based on information provided by the timing statistics contained in the software entity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.