Leader writer device

Japanese Patent JP6017943

B2

PROBLEM TO BE SOLVED: To provide a reader writer device that can increase the number of re-tries with an appropriate time-out time, and increase a success rate of communication.SOLUTION: A reader writer device according to the present invention includes: an interface part that performs a transmission and reception between the reader writer device and a host device compatible with an old encryption method but not compatible with a new encryption method; a radio communication part that performs contactless communication with a contactless IC medium; and an encryption key management table 120 that stores old encryption method management data in which an old encryption method key value to be used for performing authentication between the contactless IC medium and the reader writer device in the old encryption method and an old encryption method key ID for managing the old encryption method key value are paired, and stores new encryption key method management data in which a new encryption method key value to be used for performing authentication between the contactless IC medium and the reader writer device in the new encryption method and a new encryption method key ID for managing the new encryption method key value are paired.

Masanobu Sato
Ryoichi Egusa
Hiroaki Yoshida
Kazuyuki Sakamoto
Takahata Ikumasa
Norihiro Fujita
Hiroyasu Miyazaki

JP2012267857A

November 02, 2016

December 07, 2012

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ＪＲ東日本メカトロニクス株式会社
ソニー株式会社

G06K7/10; G06F21/44; G09C1/00; H04L9/16; H04L9/32

JP2001127749A
JP201098367A
JP2012044395A
JP2011066834A
JP2006222787A

Teiji Tanaka
Hirukawa Masanobu
Takashi Koyama
Hideo Sugai
Kenji Aoki
Hiroshi Nagisawa
Akira Yonezawa
Yoshiaki Minami

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