Method and device for checking validity period of certificate and method and device for displaying content information

• US 20070223392A1
• Filed: 11/13/2006
• Published: 09/27/2007
• Est. Priority Date: 03/21/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Sung-jin, Kim, Yang-soo, Kim, Kwang-hyuk, Koh, Kwang-hyun
• Application Number:
  US11/595,886
• Publication Number:
  US 20070223392A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4424 Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used error monitoring in general G06F11/30; arrangements for monitoring conditions of receiving stations in broadcast systems H04H60/32; diagnosis, testing or measuring for television receivers H04N17/04
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/8173 End-user applications, e.g. Web browser, game
• CPC Class Codes: H04N 21/818 OS software
• CPC Class Codes: H04N 7/163 by receiver means only

Abstract

A method and a device for confirming a validity period of a certificate and a method and a device for displaying content information are provided. A certification error and displaying of wrong time information caused by wrong system time information can be prevented, and certification time can be reduced, by setting a system time for processing content on the basis of time information received from a content provider, confirming a validity period of a certificate for approval to access the content, and displaying content information.

Claims

1. A method of confirming a validity period of a certificate, the method comprising:

(a) setting a system time for processing content on the basis of time information received from a content provider; and

(b) checking the validity period of the certificate for approval to access the content on the basis of the system time.

2. The method of claim 1,

wherein (b) further comprises confirming that the system time is set, and

wherein when it is confirmed that the system time is set, the validity period of the certificate for the approval to access the content is checked on the basis of the system time.

3. The method of claim 1, further comprising extracting information on the validity period of the certificate for the approval to access the content from information on an application that uses the content,

wherein in (b), checking the extracted information on the validity period of the certificate for the approval to access the content on the basis of the system time.

4. The method of claim 2, wherein in (b), the operation of confirming that the system time is set is delayed until the time information is received from the content provider in (a).

5. A computer-readable recording medium having embodied thereon a computer program for executing the method of claim 1.

6. A method of confirming a validity period of a certificate, the method comprising:

(a) receiving time information from one of an out-of-band channel and an in-band channel among content transmission channels;

(b) setting a system time for processing content on the basis of firstly received time information among time information received by one of the out-of-band channel and the in-band channel; and

(c) checking the validity period of the certificate for approval to access the content on the basis of the system time.

7. The method of claim 6,

wherein (c) further comprises confirming that the system time is set, and

wherein when it is confirmed that the system time is set, the validity period of the certificate for the approval to access the content is checked on the basis of the system time.

8. The method of claim 6, further comprising extracting information on the validity period of the certificate for the approval to access the content from information on an application using the content,

wherein in (c), the extracted information on the validity period of the certificate for the approval to access the content is checked on the basis of the system time.

9. The method of claim 7, wherein in (c), the confirming that the system time is set is delayed until the time information is received from one of the out-of-band channel and the in-band channel in (a).

10. A computer-readable recording medium having embodied thereon a computer program for executing the method of claim 6.

11. A method of displaying content information, the method comprising:

(a) setting a system time for processing content on the basis of time information received from a content provider; and

(b) displaying content information on the basis of the system time.

12. The method of claim 11,

wherein (b) further comprises confirming that the system time is set, and

wherein when it is confirmed that the system time is set, the content information is displayed on the basis of the system time.

13. The method of claim 11, further comprising extracting the content information from information on an application that uses the content,

wherein in (b), the extracted content information is displayed on the basis of the system time.

14. The method of claim 12, wherein in (b), the operation of confirming that the system time is set is delayed until the time information is received from the content provider in (a).

15. A computer-readable recording medium having embodied thereon a computer program for executing the method of claim 11.

16. A method of displaying content information, the method comprising:

(a) receiving time information from one of an out-of-band channel and an in-band channel among content transmission channels;

(b) setting system time for processing content on the basis of firstly received time information from one of the out-of-band channel and the in-band channel; and

(c) displaying the content information on the basis of the system time.

17. The method of claim 16,

wherein (c) further comprises confirming that the system time is set, and

wherein when it is confirmed that the system time is set, the content information is displayed on the basis of the system time.

18. The method of claim 16, further comprising extracting information on the validity period of the certificate for the approval to access the content, from information on an application using the content,

wherein in (c), the extracted information is displayed on the basis of the system time.

19. The method of claim 17, wherein in (c), the confirming that the system time is set is delayed until the time information is received from one of the out-of-band channel and the in-band channel in (a).

20. A computer-readable recording medium having embodied thereon a computer program for executing the method of claim 16.

21. A device for confirming a validity period of a certificate, the device comprising:

a system time setter which sets a system time for processing content on the basis of time information received from a content provider;

a system time confirmer which confirms the system time set by the system time setter; and

a certificate verifier which checks the validity period of the certificate for approval to access the content on the basis of the system time confirmed by the system time confirmer.

22. The device of claim 21, wherein the system time confirmer delays confirming that the system time is set until the time information is received from the content provider.

23. The device of claim 21, further comprising a separate storage unit which stores the system time set by the system time setter,

wherein the certificate verifier checks the validity period of the certificate for the approval to access the content on the basis of the system time stored in the storage unit.

24. A device for confirming a validity period of a certificate, the device comprising:

a system time information receiver which receives time information from one of an out-of-band channel and an in-band channel among content transmission channels;

a system time setter which sets a system time for processing content on the basis of firstly received time information among time information received by one of the out-of-band channel and the in-band channel;

a system time confirmer which confirms the system time set by the system time setter; and

a certificate verifier which checks the validity period of the certificate for approval to access the content on the basis of the system time confirmed by the system time confirmer.

25. The device of claim 24, wherein the system time confirmer delays confirming that the system time is set until the time information is received from the content provider.

26. The device of claim 24, further comprising a separate storage unit which stores the system time set by the system time setter,

wherein the certificate verifier checks the validity period of the certificate for the approval to access the content on the basis of the system time stored in the storage unit.

27. A device for displaying content information, the device comprising:

a system time setter which sets a system time for processing content on the basis of time information received from a content provider;

a system time confirmer which confirms the system time set by the system time setter; and

a display unit which displays content information on the basis of the system time confirmed by the system time confirmer.

28. The device of claim 27, wherein the system time confirmer delays confirming that the system time is set until the time information is received from the content provider.

29. A device for displaying content information, the device comprising:

a system time information receiver which receives time information from one of an out-of-band channel and an in-band channel among content transmission channels;

a system time setter which sets a system time for processing content on the basis of firstly received time information from one of the out-of-band channel and the in-band channel;

a system time confirmer which confirms the system time set by the system time setter; and

a display unit which displays content information on the basis of the system time confirmed by the system time confirmer.

30. The device of claim 29, wherein the system time confirmer delays confirming that the system time is set until the time information is received from the content provider.