Method for processing a digital signal in a so-called secure communication system and use of this method for access control and/or binary signature
US5764771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jun 13, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method of processing a digital signal of dimension k, in a so-called secure communication system, such that the digital signal (y) at output cannot be deduced from the digital signal (x) at input, consisting in dispatching the digital signal (x) to a device effecting a one-way function. The method includes the following steps: PA1 the digital signal (x) at the input is dispatched to a circuit C (1, 2) which gives as output a digital signal (x") of dimension n acceptable to the one-way function; PA1 the signal (x") from the circuit C (1, 2) is dispatched to the circuit effecting the one-way function giving as output the digital signal (y). The invention applies in particular to so-called secure communication systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.