05222140 is referenced by 66 patents and cites 2 patents.

Protocols for session key agreement and authentication in a communication system such as a portable communication system make use of public key cryptographic techniques. The protocols of the present invention are especially suited for use in a portable communication system because portable telephones are required by the inventive protocols to perform only a minimal amount of processing, while assigning the heavier computations to the network. The inventive protocols also authenticate the weaker (i.e. portable) side. The protocols also ensure that a third party cannot trace the location of a user by eavesdropping on a radio signal transmitted by a portable telephone.

Title
Cryptographic method for key agreement and user authentication
Application Number
7/789700
Publication Number
5222140
Application Date
November 8, 1991
Publication Date
June 22, 1993
Inventor
Yacov Yacobi
Berkeley Heights
NJ, US
Li Fung Chang
Holmdel
NJ, US
Michael J Beller
Red Bank
NJ, US
Agent
Leonard Charles Suchyta
Assignee
Bell Communications Research
NJ, US
IPC
H04L 9/08
H04L 9/30
View Original Source