Circuit and method for generating cryptographic keys

Details Circuit and method for generating cryptographic keys Circuit and method for generating cryptographic keys

1996-04-02

1998-05-05

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 44, 380 46, 380 49, H04L 908, H04L 900

Patent

active

057487340

ABSTRACT:
A circuit for, and method of, generating a cryptographic key at a communications node. The circuit includes: (1) communications circuitry for communicating a first seed during a first communications session and communicating a second seed during a second communications session temporally separated from the first communications session and (2) processor circuitry for creating the cryptographic key from the first and second seeds, the communicating of the first and second seeds occurring during the temporally-separated first and second communications sessions, respectively, thereby to enhance a privacy of the cryptographic key.

REFERENCES:
patent: 4876716 (1989-10-01), Okamoto
patent: 5530959 (1996-06-01), Amrany

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