Tag privacy protection method, tag device, backend...

Details Tag privacy protection method, tag device, backend... Tag privacy protection method, tag device, backend...

2004-09-27

2010-02-09

Revak, Christopher A (Department: 2431)

Information security

Access control or authentication

Stand-alone

C726S006000, C713S179000

Reexamination Certificate

active

07661132

ABSTRACT:
A tag device causes a second calculator to read a confidential value from a confidential value memory and to apply a second function F2which disturbs a relationship between elements of a definition domain and a mapping thereof to generate tag output information. The tag device delivers the tag output information to a backend apparatus. Subsequently, a first calculator reads out at least part of elements of the confidential value from the confidential value memory, and applies a first function F1, an inverse image of which is difficult to obtain, and a result of such calculation is used to update a confidential value in the confidential value memory by overwriting.

REFERENCES:
patent: 5657388 (1997-08-01), Weiss
patent: 5751812 (1998-05-01), Anderson
patent: 5768382 (1998-06-01), Schneier et al.
patent: 5970143 (1999-10-01), Schneier et al.
patent: 6012636 (2000-01-01), Smith
patent: 6629198 (2003-09-01), Howard et al.
patent: 7100008 (2006-08-01), Yagawa
patent: 7188230 (2007-03-01), Osaki
patent: 7348886 (2008-03-01), Himberger et al.
patent: 7362862 (2008-04-01), Schneier et al.
patent: 7474217 (2009-01-01), Himberger et al.
patent: 7492258 (2009-02-01), Shoarinejad et al.
patent: 2002/0116274 (2002-08-01), Hind
patent: 2003/0188171 (2003-10-01), DeCenzo et al.
patent: 2006/0124737 (2006-06-01), Oh et al.
patent: 2007/0046467 (2007-03-01), Chakraborty et al.
patent: 2007/0198838 (2007-08-01), Nonaka et al.
patent: 2008/0001746 (2008-01-01), Childress et al.
patent: 2008/0001748 (2008-01-01), Childress et al.
patent: 2008/0001752 (2008-01-01), Bruns et al.
patent: 2008/0088455 (2008-04-01), Lu et al.
patent: 2008/0211673 (2008-09-01), Himberger et al.
patent: 2439076 (2001-07-01), None
patent: 10-111835 (1998-04-01), None
patent: 10-162085 (1998-06-01), None
patent: 2001-243430 (2001-09-01), None
patent: 2002-126332 (2002-05-01), None
patent: 2002-183682 (2002-06-01), None
patent: 2002-319001 (2002-10-01), None
patent: 2004-192645 (2004-07-01), None
patent: 2004-318478 (2004-11-01), None
patent: 2004-318645 (2004-11-01), None
Juels, Ari; Pappu, Ravikanth: “Squealing Euros: Privacy Protection in RFID-Enabled Banknotes”, In R. Wright, ed., Financial Cryptography 03, Springer-Verlag, LNCS No. 2742, pp. 103 to 121, [Retrieved on Dec. 28, 2004], Retrieved from the Internet: <URL: http://www.rsasecurity.com/rsalabs/staff/bios/ajuels/publications/euro/Euro.pdf>, Jan. 2003.
Weis, Stephen August “Security and Privacy in Radio-Frequency Identification Devices”, Masters Thesis, MIT, pp. 1-79 [Retrieved on Dec. 28, 2004], Retrieved from the Internet: <URL: http://theory.lcs.mit.edu/-sweis/masters.pdf>, May 2003.
Welcome to EPCglobal Inc™, http://www.epcglobalinc.org.
Weis, Stephen A., Security and Privacy Aspects of Low-Cost Radio Frequency Identification Systems, LNCS 2802, pp. 201-212, 2004.
Sarma, Sanjay E., “CryptoBytes” RSA Laboratories, vol. 6, No. 1, Spring 2003.
Juels, Ari: “The Blocker Tag: Selective Blocking of RFID Tags for Consumer Privacy” CCS'03, Oct. 27-30, 2003.
Miyako Ohkubo, et al., “Cryptographic Approach to “Privacy-Friendly” Tags”, NTT Laboratories, Nippon Telegraph and Telephone Corporation, Nov. 2003, 9 pages.

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