Method and system for registering and verifying smart card certificate for users moving between public key infrastructure domains

• US 20040144840A1
• Filed: 01/20/2004
• Published: 07/29/2004
• Est. Priority Date: 01/20/2003
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Byung-Rae, Chang, Kyung-Ah
• Granted Patent: US 8,340,296 B2
• Time in Patent Office: Days
• US Class Current: 235/380
• CPC Class Codes: G06F 21/33 using certificates
• CPC Class Codes: G06F 21/34 involving the use of external additional devices, e.g. dongles or smart cards
• CPC Class Codes: G06F 2221/2115 Third party
• CPC Class Codes: G06Q 20/341 Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
• CPC Class Codes: G06Q 20/38215 Use of certificates or encrypted proofs of transaction rights
• CPC Class Codes: G06Q 20/40975 using encryption therefor
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
• CPC Class Codes: H04L 9/3234 involving additional secure or trusted devices, e.g. TPM, smartcard, USB or software token network architectures or network communication protocols for supporting authentication of entities using an additional device in a packet data network H04L63/0853
• 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

Disclosed herein is a method and system for registering and verifying a smart card certificate for users moving between public key infrastructure domains, which allows a user moving between domains to have a smart card certified in a terminal located in an external domain other than a home domain. According to the present invention, when a user wants his/her own smart card to be certified in a terminal of an external domain, a certification authority of the external domain can certify the smart card using a certificate stored in the smart card and signed electronically by a certification authority of a home domain. Additionally, a new certificate issued by the certification authority of the external domain is stored in the certified smart card, so that a certificate of the moving user can be verified regardless of domains and a new certificate of a moved domain can be easily obtained.

Claims

1. A system for registering and verifying a smart card certificate for users moving between public key infrastructure domains, comprising:

a smart card for storing a first certificate of a first domain; and

a terminal located in a second domain to transmit a certification response using the first certificate of the smart card and to transmit a second certificate of the second domain to the smart card with respect to the transmitted certification response.

2. The system as set forth in claim 1, further comprising a second certification authority located in the second domain to verify the certification response transmitted through the terminal, to create the second certificate to be stored in the smart card and to transmit the created second certificate to the terminal.

3. The system as set forth in claim 2, further comprising a first certification authority located in the first domain and connected to the second certification authority through a network to verify the certification response transmitted from the second certification authority through the network and to transmit a verification result to the second certification authority;

wherein the verification of the certification response from the second certification authority is performed depending upon the verification result of the first certification authority.

7. The system as set forth in claim 1, wherein the transmitted second certificate is stored in the smart card.

8. The system as set forth in claim 1, wherein a private key for the stored certificate is stored in the smart card.

9. The system as set forth in claim 1, wherein a public key for the stored certificate is stored in the smart card.

4. A system for registering and verifying a smart card certificate for users moving between public key infrastructure domains, comprising:

a smart card for storing a first certificate of a first domain; and

a first terminal located in the first domain to transmit a certification response using the first certificate stored in the smart card and to transmit a second certificate of a second domain to the smart card with respect to the transmitted certification response.

5. The system as set forth in claim 4, further comprising a first certification authority located in the first domain to verify the certification response transmitted through the first terminal and to transmit the second certificate to be stored in the smart card to the first terminal.

6. The system as set forth in claim 5, further comprising a second certification authority located in the second domain and connected to the first certification authority through a network to create the second certificate and to transmit the second certificate to the first certification authority in response to a certification request of the first certification authority.

10. A method for registering and verifying a smart card certificate for users moving between public key infrastructure domains, comprising the steps of:

a user accessing a terminal located in a second domain using a smart card in which a first certificate of a first certification authority is stored;

the smart card transmitting a certification response to a certification request of the terminal to the terminal;

the terminal transmitting the certification response of the smart card to a second certification authority located in the second domain; and

the terminal transmitting a second certificate of the second certification authority transmitted from the second certification authority to the smart card in response to the transmitted certification response.

11. The method as set forth in claim 10, wherein the step of the smart card transmitting the certification response comprises the steps of:

the terminal transmitting a certification request message to the smart card; and

the smart card electronically signing the certification request message, and transmitting the certification response including the signed certification request message and the first certificate to the terminal.

12. The method as set forth in claim 10, wherein the step of the terminal transmitting the second certificate of the second certification authority comprises the steps of:

the second certification authority verifying the transmitted certification response;

the second certification authority creating the second certificate to be stored in the certified smart card, and transmitting the created second certificate to the terminal; and

the terminal transmitting the transmitted second certificate to the smart card.

13. The method as set forth in claim 12, wherein the step of the second certification authority verifying the transmitted certification response comprises the steps of:

the second certification authority transmitting the certification response transmitted from the smart card to the first certification authority located in the first domain and connected to the second certification authority through a network; and

the first certification authority verifying the certification response and transmitting a verification result to the second certification authority.

14. The method as set forth in claim 10, wherein the transmitted second certificate is stored in the smart card.

15. The method as set forth in claim 10, wherein a private key for the stored certificate is stored in the smart card.

16. The method as set forth in claim 10, further comprising the steps of:

the second certification authority transmitting its own public key to the terminal; and

the terminal transmitting the public key of the second certification authority to the smart card.

17. The method as set forth in claim 16, further comprising the step of the smart card verifying the terminal using the public key of the second certification authority.

18. A method for registering and verifying a smart card certificate for users moving between public key infrastructure domains, comprising the steps of:

a user accessing a first terminal located in a first domain using a smart card in which a first certificate of the first domain is stored;

the smart card transmitting a certification response to a certification request of the first terminal to the first terminal;

the first terminal transmitting the certification response of the smart card to the first certification authority located in the first domain; and

the first terminal transmitting a second certificate of a second certification authority transmitted from the first certification authority to the smart card in response to the transmitted certification response.

19. The method as set forth in claim 18, wherein the step of the smart card transmitting the certification response comprises the steps of:

the first terminal transmitting a certification request message to the smart card; and

the smart card electronically signing an electronic signature to the certification request message, and transmitting the certification response including the signed certification request message and the first certificate to the first terminal.

20. The method as set forth in claim 18, wherein the step of the first terminal transmitting the second certificate of the second domain comprises the steps of:

the first certification authority verifying the transmitted certification response;

the first certification authority requesting a second certificate to be stored in the verified smart card from a second certification authority located in the second domain;

the second certification authority creating the second certificate and transmitting the created second certificate to the first certification authority;

the first certification authority transmitting the transmitted second certificate to the first terminal; and

the first terminal transmitting the transmitted second certificate to the smart card.

21. The method as set forth in claim 18, further comprising the steps of:

the smart card storing the transmitted second certificate;

the smart card accessing a second terminal of the second domain;

the second terminal transmitting a certification request message to the smart card;

the smart card electronically signing the certification request message and transmitting a certification response including the signed certification request message and the stored second certificate to the second terminal; and

the second terminal verifying the certification response using a public key of the second certification authority.

22. The method as set forth in claim 18, wherein the transmitted second certificate is stored in the smart card.

23. The method as set forth in claim 18, wherein a private key for the stored certificate is stored in the smart card.

24. The method as set forth in claim 18, further comprising the steps of:

the second certification authority transmitting its own public key to the first certification authority;

the first certification authority transmitting the public key of the second certification authority to the first terminal; and

the first terminal transmitting the public key of the second certification authority to the smart card.

25. The method as set forth in claim 24, further comprising the step of the smart card verifying the second terminal using the transmitted public key of the second certification authority.