Method for establishing user authenication with composite session keys among cryptographically communicating nodes
US4649233A · kind A · utility
142Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for authenticating nodes/users and in protecting data flow between nodes. This is facilitated by creating a dialogue involving authenticated encryption among the nodes. During each session, a key for use in cryptographic conversion is constructed among the node participants in order to permit symmetric authentication. The key is unique to the session. A different key is generated for each and every session. The building of the session key involves sharing of a minimal amount of information among the participants in the form of combining both a random number and authentication indicia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.