Cryptography – Key management – Key distribution
Reexamination Certificate
2002-02-26
2008-09-16
Moise, Emmanuel L (Department: 2137)
Cryptography
Key management
Key distribution
C713S172000, C713S185000, C726S009000, C726S020000
Reexamination Certificate
active
07426277
ABSTRACT:
An authentication system in which unauthorized acquisition of the private information by a third party in the course of authentication of a user by a service provider is rendered difficult. In an authentication system in which a card10and a host computer20are interconnected over a connection line30, the card10includes a memory for ID11for storing the card ID, an input unit12fed with a secret identification number, a card side interface13connected to the host computer20, an information encryption unit14for generating the information for authentication by mixing a random number, sent from the host computer20and having a unique value each time it is sent, with the secret identification number of the card, and by encoding the resulting mixed signal, and a transient storage unit15for transiently storing the information for authentication as obtained by the information encryption unit14.
REFERENCES:
patent: 4578530 (1986-03-01), Zeidler
patent: 4962531 (1990-10-01), Sipman et al.
patent: 5276314 (1994-01-01), Martino et al.
patent: 5880769 (1999-03-01), Nemirofsky et al.
patent: 5917168 (1999-06-01), Nakamura et al.
patent: 5919091 (1999-07-01), Bell et al.
patent: 6193152 (2001-02-01), Fernando et al.
patent: 6195698 (2001-02-01), Lillibridge et al.
patent: 6286099 (2001-09-01), Kramer
patent: 6584444 (2003-06-01), Tello et al.
patent: 6715078 (2004-03-01), Chasko et al.
patent: 2002/0012433 (2002-01-01), Haverinen et al.
patent: 2000-332748 (2000-11-01), None
Schneier, Bruce. Applied Cryptography. 1996. John Wiley & Sons. pp. 170-178.
Glazner, Lon. Storing Data with the RAMPACK B. Feb. 1999.
Schneier, Bruce. Applied Cryptography. John Wiley & Sons. 1996. pp. 33-34.
Kananen Ronald P.
Moise Emmanuel L
Pyzocha Michael
Rader & Fishman & Grauer, PLLC
Sony Corporation
LandOfFree
Encryption of information input to portable card terminal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Encryption of information input to portable card terminal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encryption of information input to portable card terminal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3987926