Threshold cryptography scheme for message authentication...

Details Threshold cryptography scheme for message authentication... Threshold cryptography scheme for message authentication...

2007-04-03

2007-04-03

Barron, Jr., Gilberto (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S180000, C380S286000

Reexamination Certificate

active

09961901

ABSTRACT:
A method and apparatus for authenticating a message, said method including receiving, at a device, data representative of a first share, constructing a key using said first share and at least two additional shares, said at least two additional shares being stored at said device; and authenticating a message using said constructed key.

REFERENCES:
patent: 4797672 (1989-01-01), Kousa
patent: 6490680 (2002-12-01), Scheidt et al.
patent: WO 00 49756 (2000-09-01), None
Shamir, How to Share a Secret, Nov. 1979, ACM, pp. 612-613.
Simmons, J.D.: “Prepositioned Shared Secret and/or Shared Control Schemes”, Eurocrypt '89 Proceedings, Springer-Verlag, ′Online! 1990, p. 437-467, XP002201103.
Menzeles, Oorschot: “Handbook of Applied Cryptography” 1997, CRC Press LLC, USA XP002201106, p. 364, p. 524-527.
Blundo, Cresti, De Santis, Vaccaro: “Fully Dynamic Secret Sharing Schemes” Dipartamento Di Informatica Ed Applicazioni, ′Online! 1994, p. 110-125, XP002201105, Universita di Salerno, Abstract, Chapter 1 and 6.

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