Method and apparatus for continuously acknowledged link encrypti

Details Method and apparatus for continuously acknowledged link encrypti Method and apparatus for continuously acknowledged link encrypti

1988-12-30

1990-05-15

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 25, 380 33, 380 47, H04L 904

Patent

active

049264788

ABSTRACT:
An authentication system in which communication between two locations is provided by a continuous full duplex bidirectional communications highway, which highway is a secure link between the two locations. Each location transmits information to the opposite location on a bit-by-bit basis, with a previously transmitted bit of information serving as a decoding key for the most recently received bit of information and said received bit in turn serving as the encoding key for the next bit to be transmitted. An authenticated transaction record is provided upon receipt of verified transactional data, and the reception of remotely received information may be authenticated to the sender of such data.

REFERENCES:
patent: 4805216 (1989-02-01), Gruenberg

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