Apparatus and method for authentication and session key exchange in a communication system
US5841864A · kind A · utility
31Cited by
17References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1996 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Aug 5, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0844
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The apparatus (101, 110) and method for authentication is provided by generating R and encrypting it using a selected algorithm K as the key in a primary station, encrypting the verification key, V using R as the key and encrypting the result using K as the key, transmitting both pieces of information (VAR1 and VAR3) to the secondary station (110), using K to decrypt VAR1 and VAR3 to obtain R and eventually V which is encrypted using R in the secondary station (110)verifying authenticity of the primary station (101) if the decrypted V matches the secret key portion of V that is stored at the secondary station (110).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.