Method of transmitting signals

Details Method of transmitting signals Method of transmitting signals

2007-03-06

2007-03-06

Moise, Emmanuel L. (Department: 2137)

Information security

Access control or authentication

Network

C726S005000, C726S010000, C726S019000, C726S020000, C726S030000, C380S042000, C380S262000, C380S268000, C713S168000, C713S170000, C713S175000

Reexamination Certificate

active

09269830

ABSTRACT:
A method and/or system for transmitting sequences of signals/data from a transmitter to a receiver and for authenticating the sequences of signals/data may consist of a precalculation phase and of a communication phase in which the signals are transmitted together with the checking sums. In the precalculation phase, a pseudo-random sequence may be first generated by means of a cryptographic algorithm from a time-variable parameter and other initialization data. Non-overlapping sections (z(1) of a sequence (z) having each m bits may be associated to signals (s(i)), wherein i=1, 2, . . . n, of a signal storage. Further non-overlapping m bit sections (t(i)) of the remaining sequence may be selected for coding numbers (1, 2, . . . MAX). The transmitter may transmit the initialization information and the time-variable parameters to the receiver and the receiver may calculate the pseudo-random sequence (z) and checks the receiver authentication token (T). The transmitter may accept the received signals as being authentic when the received authentication tokens match the calculated ones.

REFERENCES:
patent: 4193131 (1980-03-01), Lennon et al.
patent: 4423287 (1983-12-01), Zeidler
patent: 4799258 (1989-01-01), Davies
patent: 4919545 (1990-04-01), Yu
patent: 5005200 (1991-04-01), Fischer
patent: 5136643 (1992-08-01), Fischer
patent: 5280527 (1994-01-01), Gullman et al.
patent: 5297208 (1994-03-01), Schlafly et al.
patent: 5299263 (1994-03-01), Beller et al.
patent: 5319710 (1994-06-01), Atalla et al.
patent: 5485519 (1996-01-01), Weiss
patent: 5491750 (1996-02-01), Bellare et al.
patent: 5664016 (1997-09-01), Preneel et al.
patent: 5673319 (1997-09-01), Bellare et al.
patent: 43 17 380 (1994-08-01), None
patent: 44 06 601 (1995-09-01), None
patent: WO 94/21066 (1994-09-01), None
patent: WO 98/15085 (1998-04-01), None
Krawczyk: “LSFR-based Hashing and Authentication,” Advances in Cryptology-CRYPTO '94, LNCS 839, pp. 129-139, 1994.
Menezes, A., Van Oorschot, P., Vanstone, S.: Handbook of Applied Cryptography, Pub. 1996 CRC Press., pp. 173, 174, 18 250, and 738.
Jueneman et al., “Message Authentication with Manipulation Detection Codes,” Proceedings of the 1983 Symposium on Security and Privacy, Apr. 25, 1983, pp. 33-54.

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