Communication apparatus, control method for communication apparatus, and storage medium for changing a version of an encryption communication protocol used for communication

• US 10,356,256 B2
• Filed: 09/26/2017
• Issued: 07/16/2019
• Est. Priority Date: 10/07/2016
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Yamauchi, Hisayuki
• Primary Examiner(s): Garcia, Gabriel I
• Application Number:
  US15/716,336
• Publication Number:
  US 20180103161A1
• Time in Patent Office: 658 Days
• Field of Search: 358 115
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06F 21/606 by securing the transmission between two devices or processes
• CPC Class Codes: G06F 21/608 Secure printing
• CPC Class Codes: H04N 1/00411 the display also being used for user input, e.g. touch screen
• CPC Class Codes: H04N 1/44 Secrecy systems
• CPC Class Codes: H04N 2201/0082 Image hardcopy reproducer H04N2201/0091 - H04N2201/0094 take precedence

Abstract

When a version of an encryption communication protocol that is used for communication and set as an apparatus main unit setting for a communication apparatus is changed, a notification indicating such change of the setting is sent to an application installed in the communication apparatus.

Claims

1. A communication apparatus comprising:

a memory device that stores a set of instructions; and

at least one processor that executes the set of instructions to;

provide an apparatus main unit setting screen that is a screen for making settings for the communication apparatus and for setting two limit values, which are upper and lower limits, for an encryption communication protocol used for encrypted communication;

store the upper limit and the lower limit of the encryption communication protocol that have been set via the apparatus main unit setting screen, wherein the encryption communication protocol used for encrypted communication is limited on a basis of the stored upper limit and the stored lower limit; and

reflect a limitation on the encryption communication protocol used for encrypted communication based on the stored upper limit and the stored lower limit into an application encryption communication protocol setting for an application installed in the communication apparatus.

2. The communication apparatus according to claim 1, wherein the at least one processor executes the set of instructions in the memory device to:

store, in a storage unit, a version of the encryption communication protocol used for communication as the apparatus main unit setting; and

store, in the storage unit, a version of the encryption communication protocol used for communication as the application encryption communication protocol setting.

3. The communication apparatus according to claim 2, further comprising a display unit configured to display a screen for a user to select a version of the encryption communication protocol used for communication of the application based on information indicating the version of the encryption communication protocol that is used for communication and stored in the storage unit,

wherein, on the screen, a version of the encryption communication protocol that is set not to be used for communication as the apparatus main unit setting cannot be selected by the user.

4. The communication apparatus according to claim 3, wherein, on the screen, a version of the encryption communication protocol that is set not to be used for communication as the apparatus main unit setting is not displayed as a selection candidate.

5. The communication apparatus according to claim 1,

wherein the encryption communication protocol is TLS, and

wherein the version of the encryption communication protocol includes at least TLS1.0, TLS1.1, and TLS1.3.

6. The communication apparatus according to claim 1, wherein the communication apparatus is a printing apparatus configured to execute printing on a sheet.

7. The communication apparatus according to claim 1, wherein the at least one processor executes the set of instructions in the memory device to:

set, according to the user instruction, a higher limit and a lower limit of the version of the encryption communication protocol used for communication.

8. A control method for a communication apparatus, comprising:

providing an apparatus main unit setting screen that is a screen for making settings for the communication apparatus and for setting two limit values, which are upper and lower limits, for an encryption communication protocol used for encrypted communication;

storing the upper limit and the lower limit of the encryption communication protocol that have been set via the apparatus main unit setting screen, wherein the encryption communication protocol used for encrypted communication is limited on a basis of the stored upper limit and the stored lower limit; and

reflecting a limitation on the encryption communication protocol used for encrypted communication based on the stored upper limit and the stored lower limit into an application encryption communication protocol setting for an application installed in the communication apparatus.

9. The control method according to claim 8, further comprising:

storing, in a storage unit, a version of the encryption communication protocol used for communication as the apparatus main unit setting; and

storing, in the storage unit, a version of the encryption communication protocol used for communication as the application encryption communication protocol setting.

10. The control method according to claim 9, further comprising displaying a screen for a user to select a version of the encryption communication protocol used for communication of the application based on information indicating the version of the encryption communication protocol that is used for communication and stored in the storage unit,

wherein, on the screen, a version of the encryption communication protocol that is set not to be used for communication as the apparatus main unit setting cannot be selected by the user.

11. The control method according to claim 10, wherein, on the screen, a version of the encryption communication protocol that is set not to be used for communication as the apparatus main unit setting is not displayed as a selection candidate.

12. The control method according to claim 8,

wherein the encryption communication protocol is TLS, and

wherein the version of the encryption communication protocol includes at least TLS1.0, TLS1.1, and TLS1.3.

13. The control method according to claim 8, wherein the communication apparatus is a printing apparatus configured to execute printing on a sheet.

14. The control method according to claim 8, further comprising:

setting, according to the user instruction, a higher limit and a lower limit of the version of the encryption communication protocol used for communication.

15. A non-transitory computer readable storage medium storing a program for causing a computer to execute a method for a communication apparatus, the method comprising:

providing an apparatus main unit setting screen that is a screen for making settings for the communication apparatus and for setting two limit values, which are upper and lower limits, for an encryption communication protocol used for encrypted communication;

storing the upper limit and the lower limit of the encryption communication protocol that have been set via the apparatus main unit setting screen, wherein the encryption communication protocol used for encrypted communication is limited on a basis of the stored upper limit and the stored lower limit; and

reflecting a limitation on the encryption communication protocol used for encrypted communication based on the stored upper limit and the stored lower limit into encryption communication protocol an application setting for an application installed in the communication apparatus.

16. The non-transitory computer readable storage medium according to claim 15, further comprising:

storing, in a storage unit, a version of the encryption communication protocol used for communication as the apparatus main unit setting; and

storing, in the storage unit, a version of the encryption communication protocol used for communication as the application encryption communication protocol setting.

17. The non-transitory computer readable storage medium according to claim 16, further comprising displaying a screen for a user to select a version of the encryption communication protocol used for communication of the application based on information indicating the version of the encryption communication protocol that is used for communication and stored in the storage unit,

wherein, on the screen, a version of the encryption communication protocol that is set not to be used for communication as the apparatus main unit setting cannot be selected by the user.

18. The non-transitory computer readable storage medium according to claim 15,

wherein the encryption communication protocol is TLS, and

wherein the version of the encryption communication protocol includes at least TLS1.0, TLS1.1, and TLS1.3.

19. The non-transitory computer readable storage medium according to claim 15, wherein the communication apparatus is a printing apparatus configured to execute printing on a sheet.

20. The non-transitory computer readable storage medium according to claim 15, further comprising:

setting, according to the user instruction, a higher limit and a lower limit of the version of the encryption communication protocol used for communication.