Teleconferencing method for a secure key management system

Details Teleconferencing method for a secure key management system Teleconferencing method for a secure key management system

1989-06-05

1991-03-26

Buczinski, Stephen C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 25, 380 46, 380 49, 379202, H04L 902

Patent

active

050035932

ABSTRACT:
A secure teleconferencing method for a key management system is shown. This method directly establishes a secure teleconference among a number of terminals without the intervention of a certifying authority. The terminals of this system have been previously certified by a common certification authority. Upon detection of a secure teleconference, the terminals orient themselves in a master/slave configuration. The terminals exchange certification messages. As a result, each terminal determines the identity of the other terminals. Under the supervision of the master terminal, the terminals establish a single session, session key which permits secure communication among the terminals. A new session key is pseudorandomly generated for each teleconference call. A minimum number of messages is exchanged to establish the secure teleconference.

REFERENCES:
patent: 3674936 (1972-07-01), Wolfe
patent: 4182933 (1980-01-01), Rosenblum
patent: 4649233 (1987-03-01), Bass et al.
patent: 4888801 (1989-12-01), Foster et al.

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