Dynamic private key security system for personal messaging devices
US6169802A · kind A · utility
25Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A dynamic private key security system for personal messaging devices (200) includes a paging terminal (112). The paging terminal (112) has a terminal cryptographic engine (111) that generates an encrypted message using a terminal session key based on a first information content of a prior message, and generates a next message key based on a second information content of a current message. The terminal session key is used to encrypt the current message, and the next message key is used to encrypt a next message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.