US Patent No: 6,076,164

Number of patents in Portfolio can not be more than 2000

Authentication method and system using IC card

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Abstract

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A method and system for authenticating between a user or client and a network access entity such as a server or another client using an IC card. The method includes a step of executing an initial authentication using the IC card when the user first communicates with the network access entity, a step of commonly holding authentication information in both the user and the network access entity if the initial authentication achieves success, and a step of executing a re-authentication using the commonly held authentication information without using the IC card when the user communicates again with the same network access entity within a predetermined period of time after the last authentication.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KDDI CORPORATIONTOKYO481

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hada, Satoshi Inazawa, JP 124 753
Tanaka, Toshiaki Kitakyusyu, JP 364 4258
Yamada, Mitsuru Itabashi-ku, JP 28 126

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,717,756 System and method for providing masquerade protection in a computer network using hardware and timestamp-specific single use keys 50 1995
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
5,784,704 Memory card with timer controlled protection of stored data 3 1996
 
SECURITY DYNAMICS TECHNOLOGIES, INC. (1)
5,657,388 Method and apparatus for utilizing a token for resource access 296 1994

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MICROSOFT CORPORATION (5)
6,567,915 Integrated circuit card with identity authentication table and authorization tables defining access rights based on Boolean expressions of authenticated identities 42 1998
6,779,112 Integrated circuit devices with steganographic authentication, and steganographic authentication methods 14 1999
7,055,033 Integrated circuit devices with steganographic authentication and steganographic authentication methods 5 2004
6,954,855 Integrated circuit devices with steganographic authentication, and steganographic authentication methods 0 2004
7,257,708 Steganographic authentication 1 2005
 
EMC CORPORATION (3)
8,341,127 Client initiated restore 2 2006
8,042,172 Remote access architecture enabling a client to perform an operation 0 2006
8,800,023 Remote access architecture enabling a client to perform an operation 0 2011
 
SONY CORPORATION (2)
7,353,385 Authentication system, authentication method, authentication apparatus, and authentication method therefor 1 2001
7,131,002 Authentication method, authentication system, semiconductor circuit and authentication module 2 2001
 
UBS AG, STAMFORD BRANCH (2)
7,296,149 Secure user and data authentication over a communication network 17 2002
7,296,160 Secure user authentication over a communication network 12 2002
 
AB SNALLE (1)
8,341,735 Method and arrangement for automatically controlling access between a computer and a communication network 0 2003
 
CITICORP DEVELOPMENT CENTER, INC. (1)
6,655,585 System and method of biometric smart card user authentication 151 1999
 
FELSHER, DAVID P., MR. (1)
7,181,017 System and method for secure three-party communications 337 2002
 
FortressGB Ltd. (1)
8,504,395 System for accepting value from closed groups 3 2007
 
NEC CORPORATION (1)
8,302,176 Validity checking system, validity checking method, information processing card, checking device, and authentication apparatus 0 2007
 
R & B 21 (1)
6,625,419 Grading system, server computer, card case, and card 0 2001
 
SAFENET, INC. (1)
8,065,718 Secure authentication using hardware token and computer fingerprint 3 2007
 
SIEMENS AKTIENGESELLSCHAFT (1)
6,934,843 Method for authenticating at least one subscriber during a data interchange 0 2001
 
THOMSON LICENSING (1)
7,360,078 Communication methods and apparatus 12 2000
 
VISA U.S.A. INC. (1)
6,920,611 Method and system for implementing a loyalty merchant component 76 2003
 
Other [Check patent profile for assignment information] (2)
7,587,368 Information record infrastructure, system and method 64 2001
8,600,830 System and method for providing a payment to a non-winning auction participant 1 2010