Method for implementing a private-key communication protocol between two processing devices
US6226382A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1997 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0643
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for implementing private key protocols between two processing devices of which at least one is a portable storage medium. The devices are fitted with a digital processing circuit for performing modular calculation operations with a view to executing operations such as modular multiplication, the processing circuit is used to implement a private key encryption function consisting of a series of reversible operations comprising at least a combination of two operations, i.e. a modular calculation operation and a binary logic operation, and said function is applied either for encrypting or signing messages to be transmitted, or for decrypting received messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.