Method and apparatus for access control and/or identification

Details Method and apparatus for access control and/or identification Method and apparatus for access control and/or identification

1995-03-06

1995-09-19

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 30, H04L 900

Patent

active

054523575

ABSTRACT:
A system providing access control, including encryption and decryption capability, replaces a public key directory by a transmission between an authority, or a sender S, and a receiver R of a "seed" value. The seed is processed to provide both identity information for R and public keys, i.e. a "virtual public key directory", or VPKD. The VPKD is generated prior to execution of the algorithm requiring the public directory, i.e. the host algorithm.

REFERENCES:
patent: 4354201 (1982-10-01), Sechet et al.
patent: 4932056 (1990-06-01), Shamir
patent: 4933970 (1990-06-01), Shamir
patent: 4995082 (1991-02-01), Schnorr
patent: 5204901 (1993-04-01), Hershey et al.
patent: 5289542 (1994-02-01), Kessler
Shamir et al., "An Improvement of the Fiat-Shamir Identification and Signature Scheme", Proceedings from CRYPTO '88, pp. 244-247, Mar. 21, 1990.

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