Identity based encryption

Details Identity based encryption Identity based encryption

2005-11-14

2010-12-28

Moorthy, Aravind K (Department: 2431)

Cryptography

Key management

Having particular key generator

C380S255000, C380S281000, C380S282000, C380S283000, C380S284000, C380S285000, C380S030000, C713S150000, C713S165000, C713S168000, C713S171000, C713S189000

Reexamination Certificate

active

07860247

ABSTRACT:
A method of performing IBE cryptography comprising the steps of a key generation server transmitting a master public key to a processor, the processor generating or retrieving a fresh master public key derived from the master public key transmitted by the key generation centre, and the processor using the fresh master public key to generate a public key for transmitting a message to a recipient device having a corresponding private key. The processor may store the fresh master public key in a read only memory for repeated use or it may dynamically generate it. To dynamically generate the fresh master public key the processor multiplies the original master public key by a curve co-factor. The processor may be incorporated into a hand-held card, and it may transfer information to a linked second processor for performing some of the calculations.

REFERENCES:
patent: 2002/0116337 (2002-08-01), Peled et al.
patent: 2004/0081321 (2004-04-01), Struik
patent: 2004/0225885 (2004-11-01), Grohoski et al.
patent: 2004/0228485 (2004-11-01), Abu et al.
patent: 2005/0005126 (2005-01-01), Zhang et al.
patent: 2005/0138374 (2005-06-01), Zheng et al.
patent: 2005/0251680 (2005-11-01), Brown et al.
patent: 2006/0023887 (2006-02-01), Agrawal et al.
patent: 2006/0129800 (2006-06-01), Lauter et al.
patent: 2007/0121933 (2007-05-01), Futa et al.
patent: 2008/0148047 (2008-06-01), Appenzeller et al.
patent: 1379024 (2004-01-01), None
patent: 2407948 (2005-05-01), None
patent: WO 03/017559 (2003-02-01), None
Beguin et al, Intl. Conf. on Theory & Applns . . . , Nov. 28, 1994, pp. 249-259, Secure acceleration of DSS signatures using insecure . . . .
Matsumoto et al, Intl. Conf. on Theory & Applns . . . , Jan. 1988, pp. 497-506, Speeding up Secret Computations with Insecure . . . .
Jakobsson et al, Intl. Workshop on Prac. & Theory, Feb. 15, 2001, pp. 383-401, Secure Server-Aided Signature Generation.
Lim et al, Lecture Notes in Computer Sci., vol. 963, Aug. 31, 1995, pp. 70-83, Security and Performance of Server-Aided RSA . . . .

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