Cryptographic key distribution method and system

Details Cryptographic key distribution method and system Cryptographic key distribution method and system

1991-03-25

1992-06-23

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 30, 380 49, H04L 908, H04L 930

Patent

active

051241170

ABSTRACT:
A method for establishing cryptographic communications comprising the steps of: generating a first key-encryption-key signal; transforming, using a public-key-encryption algorithm, the first key-encryption-key signal to a first ciphertext signal; generating a second key-encryption-key signal; transforming, using the public-key-encryption algorithm, the second key-encryption-key signal to a second ciphertext signal; decoding, using the public-key-decryption algorithm, the first ciphertext signal and the second ciphertext signal, thereby generating the first key-encryption-key signal and the second key-encryption-key signal; transforming, using a secret-key-encryption algorithm, the first key-encryption-key signal and the second key-encryption-key signal to a third ciphertext signal; and decoding, using a secret-key-decryption algorithm and the first key-encryption-key signal, the third ciphertext signal thereby generating the second key-encryption-key signal.

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patent: 4386233 (1983-05-01), Smid et al.
patent: 4405829 (1983-09-01), Rivest et al.
patent: 4424414 (1984-01-01), Hellman et al.
patent: 4458109 (1984-07-01), Mueller-Schloer
patent: 4514592 (1985-04-01), Miyaguchi
patent: 4567600 (1986-01-01), Massey

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