Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2011-04-19
2011-04-19
Henning, Matthew T (Department: 2491)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S180000, C713S181000, C380S259000, C380S283000, C348S161000
Reexamination Certificate
active
07930544
ABSTRACT:
A verification information generation system includes first and second data processing apparatuses. The first data processing apparatus has a unit holding first secret information, a unit receiving information associated with the second secret information from the second apparatus, a unit generating key information on the basis of the first secret information and the information associated with the second secret information, a unit generating key derivation auxiliary information allowing the key information to be derived from the second secret information, a unit generating verification information on the basis of information to be verified and the key information, and a unit outputting the information to be verified, the verification information, and the key derivation auxiliary information. The second secret information is information which is set in advance in the second data processing apparatus.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Henning Matthew T
Potratz Daniel
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