Authentication verifying method, authentication verifying member and authentication verifying member producing method

• US 9,202,328 B2
• Filed: 11/18/2008
• Issued: 12/01/2015
• Est. Priority Date: 12/03/2007
• Status: Active Grant

• Current Assignee: International Frontier Technology Laboratory Inc.
• Original Assignee: International Frontier Technology Laboratory Inc.
• Inventors: Komatsu, Nobuaki, Nanjo, Shin-ichiro, Ito, Tomoko
• Primary Examiner(s): BROWN, ANTHONY D
• Application Number:
  US12/745,629
• Publication Number:
  US 20100306532A1
• Time in Patent Office: 2,569 Days
• Field of Search: 713/156, 726/2, 726/4
• US Class Current: 1/1
• CPC Class Codes: G03H 1/0011 for security or authentication holograms on information-bearing cards B42D25/328; testing papers with holograms G07D7/0032
• CPC Class Codes: G07D 7/0047 using checkcodes, e.g. coded numbers derived from serial number and denomination
• CPC Class Codes: G07D 7/01 Testing electronic circuits therein
• CPC Class Codes: G09C 5/00 Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
• CPC Class Codes: H04L 9/3263 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements network architectures or network communication protocols for supporting authentication of entities using certificates in a packet data network H04L63/0823

Abstract

Authentication verifying for an object to be certified is carried out. An authentication verifying chip in which authentication verifying information is stored is mounted non-removably on a certificate. A confirmation chip in which the authentication verifying information is encrypted by a crypt key of a certificate issuer and is stored is mounted non-removably on the object to be certified. When verifying the authenticity of the object to be certified, the encrypted authentication verifying information in the confirmation chip is decrypted by the crypt key of the certificate issuer, and it is compared to the authentication verifying information in the authentication verifying chip.

Claims

1. An authentication verifying system, comprising:

a set of a certificate and an object to be certified;

an authentication verifying chip non-removably mounted on said certificate and storing first authentication verifying information which is obtained by chance and is copy-unable; and

said object to be certified being mounted non-removably a storage medium, where said first authentication verifying information is encrypted using a first crypt key of authorities that issue the certificate and certify the object to generate encrypted-by-first-crypt-key first authentication verifying information that is stored, wherein,

said first authentication verifying information and said encrypted-by-first-crypt-key first authentication verifying information are read;

said encrypted-by-first-crypt-key first authentication verifying information is decrypted by using the first crypt key of said authorities; and

the corresponding relation between said certificate and said object to be certified is confirmed by comparing said first authentication verifying information thus read with said decrypted first authentication verifying information as decrypted from said encrypted-by-first-crypt-key first authentication verifying information.

2. An authentication verifying system according to claim 1, wherein said certificate and said object to be certified are integrated.

3. An authentication verifying system according to claim 1, wherein said certificate and said object to be certified are separated from each other.

4. An authentication verifying system according to claim 1, wherein:

a storage medium, where said first authentication verifying information is encrypted by using a second crypt key of the authorities to encrypted-by-second-crypt-key first authentication verifying information and is stored, is further mounted non-removably on said certificate;

said encrypted-by-second-crypt-key first authentication verifying information is further read;

said encrypted-by-second-crypt-key first authentication verifying information is decrypted by the second crypt key of the authorities;

compare the first authentication verifying information of said certificate and the first authentication verifying information thus decrypted from said

encrypted-by-second-crypt-key first authentication verifying information; and

the corresponding relation between said certificate and said object to be certified is confirmed.

5. An authentication verifying system according to claim 4, wherein said first crypt key and said second crypt key are the same crypt key.

6. An authentication verifying system according to claim 4, wherein said first crypt key and said second crypt key are crypt keys different from each other.

7. An authentication verifying system according to claim 1, wherein:

a storage medium, storing second authentication verifying information which is obtained by chance and is copy-unable, is further mounted non-removably on said object to be certified;

a storage medium, where said second authentication verifying information is encrypted by using a second crypt key of said authorities to encrypted-by-second-crypt-key second authentication verifying information is stored, is further mounted non-removably on said certificate;

said encrypted-by-second-crypt-key second authentication verifying information is decrypted by said second crypt key;

said encrypted-by-first-crypt-key first authentication verifying information is decrypted by using said first crypt key;

said first authentication verifying information is compared with the first authentication verifying information thus decrypted from said encrypted-by-first-crypt-key first authentication verifying information;

said second authentication verifying information is compared with the second authentication verifying information thus decrypted from said encrypted-by-second-crypt-key second authentication verifying information; and

the corresponding relation between said certificate and said object to be certified is confirmed.

8. An authentication verifying system according to claim 7, wherein said first authentication verifying information and said second authentication verifying information are the same authentication verifying information.

9. An authentication verifying system according to claim 8, wherein said first crypt key and said second crypt key are crypt keys different from each other.

10. An authentication verifying system according to claim 8, wherein said first crypt key and said second crypt key are the same crypt key.

11. An authentication verifying system according to claim 7, wherein said first authentication verifying information and said second authentication verifying information are the different authentication verifying information.

12. An authentication verifying system according to claim 11, wherein said first crypt key and said second crypt key are crypt keys different from each other.

13. An authentication verifying system according to claim 11, wherein said first crypt key and said second crypt key are the same crypt key.