Information security – Access control or authentication – Network
Reexamination Certificate
2004-08-20
2011-12-06
Arani, Taghi (Department: 2438)
Information security
Access control or authentication
Network
C713S156000, C713S157000, C713S171000, C713S173000, C713S175000, C380S277000, C711S100000, C726S020000
Reexamination Certificate
active
08074266
ABSTRACT:
By enabling to write information which is readable only by an IC card owner on an IC card without inputting a PIN and to authenticate a creator of the written information and prevent falsification, it is guaranteed that data written on the IC card can be read only by the IC card owner, the creator of the written data can be specified, and the written data has not been falsified. A secure memory card101includes a card private key storing unit208storing a private key, a card certificate storing unit202storing a certificate of a public key which forms a pair with the private key, a certificate sending unit201sending the certificate to a PC102, a private storing unit203which is readable/writable from the outside only when a correct PIN is input, a public storing unit210which is readable/writable from the outside without checking a PIN, a confidential data receiving unit211receiving confidential data from the PC102, and so on.
REFERENCES:
patent: 6038551 (2000-03-01), Barlow et al.
patent: 2004/0068631 (2004-04-01), Ukeda et al.
patent: 9-282393 (1997-10-01), None
patent: 11-203439 (1999-07-01), None
patent: 2000-285189 (2000-10-01), None
patent: 2002-279062 (2002-09-01), None
patent: 2003-108952 (2003-04-01), None
patent: 2003-187194 (2003-07-01), None
patent: 2004-21755 (2004-01-01), None
patent: 2004-38270 (2004-02-01), None
The Supplementary European Search Report for EP 04 77 1925, mailed May 20, 2009.
Arani Taghi
Birch Stewart Kolasch & Birch, LLP.
Holmes Angela
Mitsubishi Electric Corporation
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