Cipher communication method and device
US5613005A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1995 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Jul 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Self-synchronizing encryption/decoding circuits are provided with a plurality of irreducible polynomials. An irreducible polynomial to be used in encryption between sending and receiving stations is selected prior to cipher communication. On the sending side, the selected irreducible polynomial is used to encrypt communication information to be transmitted. On the receiving side, the selected irreducible polynomial is used to decrypt communication information that is received. Use of an irreducible polynomial as a key provides a simple structure which eliminates the effects of missing data and enables encryption and decoding with communication lines on which gaps readily occur in the data being communicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.