Electrical computers and digital processing systems: support – Multiple computer communication using cryptography
Reexamination Certificate
2003-04-18
2008-03-25
Moise, Emmanuel L. (Department: 2137)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
C380S277000, C380S273000, C713S171000
Reexamination Certificate
active
07350069
ABSTRACT:
We propose a multi user information theoretically secure scheme. Our scheme allows any two parties in a multi user system to exchange messages securely using encryption, and to sign messages. Our scheme achieves a significant saving in the number of total keys in the system and in the keys each user must store. The encryption, and signing algorithms proposed in the scheme are as efficient as possible. Our scheme is designed so that it is possible to easily and efficiently revoke and add membership of new users into the system. It is also designed so that authentication and security against man in the middle attacks can be added at low cost. In addition, we introduce a novel and efficient way to use steganography for key replenishment.
REFERENCES:
patent: 5150411 (1992-09-01), Maurer
patent: 5159634 (1992-10-01), Reeds, III
patent: 5483598 (1996-01-01), Kaufman et al.
patent: 5764767 (1998-06-01), Beimel et al.
patent: 5838792 (1998-11-01), Ganesan
patent: 5907618 (1999-05-01), Gennaro et al.
patent: 5991399 (1999-11-01), Graunke et al.
patent: 6091819 (2000-07-01), Venkatesan et al.
patent: 6205249 (2001-03-01), Moskowitz
patent: 6307936 (2001-10-01), Ober et al.
patent: 6445794 (2002-09-01), Shefi
patent: 6449720 (2002-09-01), Sprague et al.
patent: 6628786 (2003-09-01), Dole
patent: 6795555 (2004-09-01), Parisien et al.
patent: 6834112 (2004-12-01), Brickell
patent: 6868495 (2005-03-01), Glover
patent: 6891952 (2005-05-01), Puehlhoefer et al.
patent: 6917685 (2005-07-01), Watanabe et al.
patent: 6963976 (2005-11-01), Jutla
patent: 6980649 (2005-12-01), Batcher
patent: 7043024 (2006-05-01), Dinsmore et al.
patent: 7065215 (2006-06-01), Shirakawa et al.
patent: 2002/0002675 (2002-01-01), Bush
patent: 2002/0090091 (2002-07-01), Ng et al.
patent: 2003/0026431 (2003-02-01), Hammersmith
patent: 2003/0112972 (2003-06-01), Hattick et al.
Gertner Yael
Herz Frederick S. M.
Kannan Sampath
Martell Craig H.
Gergiso Techane J.
Moise Emmanuel L.
Woodcock & Washburn LLP
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