PROGRAM CORRECTING SYSTEM FOR IC CARD, PROGRAM, AND IC CARD

PROGRAM CORRECTING SYSTEM FOR IC CARD, PROGRAM, AND IC CARD

PROBLEM TO BE SOLVED: To provide a program correcting system capable of upgrading firmware and/or a program efficiently and safely; a program; and an IC card. SOLUTION: The CPU 221 of the IC card 220 performs encryption authentication when confirming the reception of a mode transition command 505 fr...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JO TERUAKI, IRISAWA KAZUYOSHI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a program correcting system capable of upgrading firmware and/or a program efficiently and safely; a program; and an IC card. SOLUTION: The CPU 221 of the IC card 220 performs encryption authentication when confirming the reception of a mode transition command 505 from a correcting program server 101. When the encryption authentication is successful, the CPU 221 performs a decryption process using a matching encryption key and sends information about the successful encryption authentication to the correcting program server 101. The IC card 220 is changed from a normal mode to an upgrade accepting mode. A control part 401 of the correcting program server 101 executes an upgrading process upon receiving the information about the successful encryption authentication. COPYRIGHT: (C)2007,JPO&INPIT