Tamper resistant device and file generation method

• US 7,500,605 B2
• Filed: 03/17/2006
• Issued: 03/10/2009
• Est. Priority Date: 03/18/2005
• Status: Expired due to Fees

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Ishii, Kazuhiko, Mori, Kensaku, Terada, Masayuki, Hongo, Sadayuki
• Primary Examiner(s): Frech; Karl D
• Assistant Examiner(s): Kim; Tae W
• Application Number:
  US11/377,257
• Publication Number:
  US 20060214006A1
• Time in Patent Office: 1,089 Days
• Field of Search: 235/380
• US Class Current: 235/380
• CPC Class Codes: G06F 21/62 Protecting access to data via a platform, e.g. using keys or access control rules
• CPC Class Codes: G06F 21/78 to assure secure storage of data address-based protection against unauthorised use of memory G06F12/14; record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00
• CPC Class Codes: G06Q 20/045 using payment protocols involving tickets
• CPC Class Codes: G06Q 20/1235 with control of digital rights management [DRM]
• CPC Class Codes: G06Q 20/322 Aspects of commerce using mobile devices [M-devices]
• CPC Class Codes: G07F 17/42 for ticket printing or like apparatus , e.g. apparatus for dispensing of printed paper tickets or payment cards

Abstract

It is an object to provide a tamper resistant device and a file generation method which can store right value information such as a ticket information, and guarantee validity of the right value information without executing a digital signature processing.

An IC card 102 attached to a portable terminal 100 receives, from an application 101, right value information representing a right value and a file generation message instructing generation of a rights-file. The right value information includes file data representing the right value, data size and the like. Upon determining that a file generation message is received, the IC card 102 generates a rights-file including the IC card identification ID and right value information which are previously stored in the IC card 102.

Claims

1. A tamper resistant device that is an IC card, which stores an identifier capable of uniquely identifying the tamper resistant device, comprising:

a receiving unit configured to receive a file generation message including right value information representing a right value and instruction information, which instructs generation of a rights-file including the right value information and the identifier;

a message determination unit configured to determine whether or not the file generation message received by the receiving unit includes the right value information representing the right value and the instruction information, which instructs generation of the rights-file including the right value information and the identifier;

a file generation unit configured to generate, if the message determination unit determines that the file generation message received by the receiving unit includes the right value information and the instruction information, the rights-file including the identifier and the right value information, wherein the identifier is an IC card identification ID stored in the IC card; and

a storage unit configured to store the rights-file generated by the file generation unit,

wherein the storage unit is configured to store the rights-file generated by the file generation unit in accordance with a storage destination folder described in the right value information included in the file generation message received by the receiving unit.

2. A tamper resistant device that is an IC card, which stores an identifier capable of uniquely identifying the tamper resistant device, comprising:

a receiving unit configured to receive a file generation message including right value information representing a right value and instruction information, which instructs generation of a rights-file including the right value information and the identifier;

a message determination unit configured to determine whether or not the file generation message received by the receiving unit includes the right value information representing the right value and the instruction information, which instructs generation of the rights-file including the right value information and the identifier;

a file generation unit configured to generate, if the message determination unit determines that the file generation message received by the receiving unit includes the right value information and the instruction information, the rights-file including the identifier and the right value information, wherein the identifier is an IC card identification ID stored in the IC card; and

a storage unit configured to store the rights-file generated by the file generation unit, wherein the receiving unit is configured to receive the file generation message including an application identification ID indicating a transmission source of the file generation message, the IC card identification ID that is a transmission destination of the file generation message, the instruction information, the right value information, and length information indicating a data size of the right value information.

3. A tamper resistant device that is an IC card, which stores an identifier capable of uniquely identifying the tamper resistant device, comprising:

a receiving unit configured to receive a file generation message including right value information representing a right value and instruction information, which instructs generation of a rights-file including the right value information and the identifier;

a message determination unit configured to determine whether or not the file generation message received by the receiving unit includes the right value information representing the right value and the instruction information, which instructs generation of the rights-file including the right value information and the identifier;

a file generation unit configured to generate, if the message determination unit determines that the file generation message received by the receiving unit includes the right value information and the instruction information, the rights-file including the identifier and the right value information, wherein the identifier is an IC card identification ID stored in the IC card;

a storage unit configured to store the rights-file generated by the file generation unit; and

an error detection unit configured to determine whether a failure occurred while generating the rights-file,

wherein the error detection unit is configured to determine that the failure has occurred when a folder indicated as a storage destination folder does not exist in the tamper resistant device.

4. A file generation method of a tamper resistant device that is an IC card, which stores an identifier capable of uniquely identifying the tamper resistant device, comprising:

receiving, by the IC card, a file generation message including right value information representing a right value and instruction information, which instructs generation of a rights-file including the right value information and the identifier;

determining, by the IC card, whether or not the received file generation message includes the right value information representing the right value and the instruction information, which instructs generation of the rights-file including the right value information and the identifier;

generating, by the IC card, if the file generation message is determined to include the right value information and the instruction information, the rights-file including the identifier and the right value information, wherein the identifier is an IC card identification ID stored in the IC card; and

storing, by the IC card, the generated rights-file,

wherein the step of storing the generated rights-file comprises storing the generated rights-file in accordance with a storage destination folder described in the right value information included in the received file generation message.

5. A file generation method of a tamper resistant device that is an IC card, which stores an identifier capable of uniquely identifying the tamper resistant device, comprising:

receiving, by the IC card, a file generation message including right value information representing a right value and instruction information, which instructs generation of a rights-file including the right value information and the identifier;

determining, by the IC card, whether or not the received file generation message includes the right value information representing the right value and the instruction information, which instructs generation of the rights-file including the right value information and the identifier;

generating, by the IC card, if the file generation message is determined to include the right value information and the instruction information, the rights-file including the identifier and the right value information, wherein the identifier is an IC card identification ID stored in the IC card; and

storing, by the IC card, the generated rights-file,

wherein the step of receiving the file generation message comprises receiving the file generation message including an application identification ID indicating a transmission source of the file generation message, the IC card identification ID that is a transmission destination of the file generation message, the instruction information, the right value information, and length information indicating a data size of the right value information.

6. A file generation method of a tamper resistant device that is an IC card, which stores an identifier capable of uniquely identifying the tamper resistant device, comprising:

receiving, by the IC card, a file generation message including right value information representing a right value and instruction information, which instructs generation of a rights-file including the right value information and the identifier;

determining, by the IC card, whether or not the received file generation message includes the right value information representing the right value and the instruction information, which instructs generation of the rights-file including the right value information and the identifier;

generating, by the IC card, if the file generation message is determined to include the right value information and the instruction information, the rights-file including the identifier and the right value information, wherein the identifier is an IC card identification ID stored in the IC card;

storing, by the IC card, the generated rights-file; and

determining whether a failure occurred while generating the rights-file,

wherein the step of determining whether the failure occurred comprises determining that the failure occurred while generating the rights-file when a folder indicated as a storage destination folder does not exist in the tamper resistant device.