System, method, and computer program for communicating a key rec

Details System, method, and computer program for communicating a key rec System, method, and computer program for communicating a key rec

1997-06-27

2000-05-09

Gregory, Bernarr E.

Cryptography

Key management

Key distribution

380255, 380277, 380287, 380 29, 713200, 713201, H04L 908, H04L 900, H04L 906

Patent

active

060614544

ABSTRACT:
A method is disclosed for communicating a key recovery block from a sender to a non-enabled receiver, without the danger of throwing the receiver into an indeterminant state, and without modifying the receiver. The method uses an unmodified communications protocol that has a standard method to receive and acknowledge arbitrary data. The sender sends a message using the standard method for arbitrary data, and includes in the message the key recovery block. The receiver responds with a standard acknowledgment message. The method thereby enables an entity coupled to the link, to monitor the key recovery block, even though the receiver is not enabled to process it.

REFERENCES:
patent: 5557346 (1996-09-01), Lipner et al.
patent: 5557765 (1996-09-01), Lipner et al.
patent: 5745573 (1998-04-01), Lipner et al.

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