Personal authentication system and portable unit and storage medium used therefor

• US 20050055557A1
• Filed: 10/21/2004
• Published: 03/10/2005
• Est. Priority Date: 02/19/1999
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Morijiri, Tomoaki, Yamada, Miki, Saisho, Toshiaki
• Application Number:
  US10/968,985
• Publication Number:
  US 20050055557A1
• Time in Patent Office: Days
• US Class Current: 713/186
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/34 involving the use of external additional devices, e.g. dongles or smart cards
• CPC Class Codes: G06F 21/445 by mutual authentication, e.g. between devices or programs
• CPC Class Codes: H04L 2209/60 Digital content management, e.g. content distribution
• CPC Class Codes: H04L 2209/805 Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
• CPC Class Codes: H04L 9/3231 Biological data, e.g. fingerprint, voice or retina network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861
• CPC Class Codes: H04L 9/3273 for mutual authentication network architectures or network communication protocols for achieving mutual authentication in a packet data network H04L63/0869

Abstract

When a personal authentication is to be executed, the encryption section of an IC card encrypts biological data and supplies the obtained ciphertext to a sensor unit. When the decryption section of the sensor unit obtains biological data by decrypting the ciphertext, a collation section collates the biological data with input biological measurement data, thereby authenticating personal identification.

Claims

1-3. -3. (Canceled)

4. A personal authentication unit having tamper resistance, comprising:

tamper-resistant decryption means for obtaining registration data by decrypting an encrypted registration data supplied from a portable unit for storing the registration data and outputting the encrypted registration data obtained by encrypting the registration data;

input means for inputting input information; and

collation means for collating the registration data obtained from said decryption means with the input information input from said input means.

5-7. -7. (Canceled)

8. A computer readable medium used for a tamper-resistant personal authentication unit having a computer and executing a personal authentication on the basis of an encrypted registration data supplied from a tamper-resistant portable unit for storing registration data and outputting the encrypted registration data obtained by encrypting the registration data, said medium storing a program which when executed performs a method comprising:

causing said computer to execute a decryption procedure for obtaining registration data by decrypting the encrypted registration data supplied from said portable unit;

causing said computer to execute an input procedure for inputting input information; and

causing said computer to execute a collation procedure for collating the registration data obtained by the decrypt procedure with the input information.

9-19. -19. (Canceled)