Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2006-10-03
2006-10-03
Vu, Kim (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S176000, C713S179000, C380S030000, C380S277000, C380S278000
Reexamination Certificate
active
07117368
ABSTRACT:
A system allowing a participant to participate anonymously in a plurality of sessions but to be detected that the same participant has participated more than once in the same session is disclosed. The participant authorizes individual data using secret information depending on session-related information. The reception subsystem determines whether received data is anonymous participation data authorized by the participant subsystem and further determines whether anonymous signatures of arbitrary two pieces of anonymous participation data are signed by an identical participant subsystem. The anonymous signature may include data generated by raising a session-dependent base to a power dependent on the secret information.
REFERENCES:
patent: 5495532 (1996-02-01), Kilian et al.
patent: 5682430 (1997-10-01), Kilian et al.
patent: 6055518 (2000-04-01), Franklin et al.
patent: 6317833 (2001-11-01), Jakobsson
patent: 6636969 (2003-10-01), Jakobsson et al.
patent: 2001/0034708 (2001-10-01), Walker et al.
Ramzan et al, Group Blind Digital Signatures: Theory and Applications, Laboratory of Computer Science, Massachusetts Institute of Technology, 1999.
Grabbe, Introduction to Digital Cash, Talk given to the Libertarian PArty of Colorado, Apr. 20, 1997.
J. Camenisch and M. Staadler, “Efficient group signature schemes for large groups”, International Conference CRYPTO, 1997, (15) pages.
G. Ateniese and Gene Tsudik, “Some Open Issues and New Directions in Group Signature”, International Conference Financial Cryptograph, 1999, (16) pages.
J. Kilian and E. Petrank, “Identity Escrow”, International Conference CRYPTO, 1998, (pp. 158-185).
Ryuaki Okamoto et al., “Modern Encrypting”, pp. 243-244 (Jun. 1997).
G. Anteniese et al., “Some Open Issues and New Directions in Group Signatures,” Financial Cryptography, Third International Conference, FC '99 Proceedings, pp. 196-211, (XP002252934) Springer-Verlag, Berlin, Germany.
J. Camenisch et al., “Efficient Group Signature Schemes for Large Groups,” Advances in Cryptology—Crypto '97 Proceedings of the Annual International Cryptology Conference, pp. 410-424 (XP000767547), Berlin, Germany.
L.F. Cranor et al., “Sensus: A Security-Conscious Electronic Polling System for the Internet,” Proceedings of the 13thHawaii International Conference of Wailea, HI, 1997, pp. 561-570, (XP010271743).
Jinn-Ke Jan et al., “A Secure Electronic Voting Protocol with IC Cards,” Security Technology, 1995, Proceedings IEEE, pp. 259-265, (XP010196424), New York, NY.
J. Kilian et al., “Identity Escrow,” Advances in Cryptology, 18thAnnual International Cryptology Conference, Proc. Lecture notes in Computer Science, vol. 1462, pp. 169-185, 1998, (XP000792174) Berlin, Germany.
Y. Mu et al., “Anonymous Secure E-Voting over a Network,” Computer Security Applications Conference, 1998, Proceedings 14thAnnual, pp. 293-299, 1998 (XP010318642), Los Alamitos, CA.
Dada Beemnet
Vu Kim
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