IP Library Granted Patent US 11,706,366
Granted Patent B2
US 11,706,366 · App. 17/847,973 · Granted Jul 18, 2023

Information processing apparatus and method of notifying verification result of program

Inventor: Shinichi Ono (Tokyo, JP)
Assignee: Canon Kabushiki Kaisha
H04N1/00899G06F21/575H04N1/00891
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Quick Facts
Patent No.
US 11,706,366
App. No.
17/847,973
Granted
Jul 18, 2023
Kind
B2
Abstract

An information processing apparatus includes a control unit, a storage unit configured to store a program to be executed by the control unit, a verification unit configured to read the program from the storage unit and to verify the read program, and a light-emitting unit configured to be changed to a predetermined light-emitting state or to be changed from the predetermined light-emitting state based on a result of the verification of the program by the verification unit.

Claims (23)

1. An information processing apparatus configured to verify whether a program is valid and execute a program that has been verified to be valid, the information processing apparatus comprising:

a first processor configured to execute a first program that has been verified to be valid;

a second processor configured to execute a second program that has been verified to be valid; and

a notification device,

wherein, the notification device does not perform a notification in a case where the second program is not valid, and performs a predetermined notification in a case where the first program is not valid.

2. The information processing apparatus according to claim 1 , wherein, in a case where the second program is valid, the notification device performs a notification different from the predetermined notification.

3. The information processing apparatus according to claim 2 ,

wherein the notification device is a light emitting diode,

wherein the notification different from the predetermined notification is lightning of the light emitting diode, and

wherein the light emitting diode performs the notification different from the predetermined notification while the second processor is executing the second program.

4. The information processing apparatus according to claim 2 , wherein, in a case where the first program is valid, the notification device is brought into a state where no notification is performed from a state where the notification different from the predetermined notification is performed.

5. The information processing apparatus according to claim 1 , wherein the notification device is a light emitting diode.

6. The information processing apparatus according to claim 5 , wherein the predetermined notification is a blinking of the light emitting diode.

7. The information processing apparatus according to claim 1 , wherein the second program is firmware.

8. The information processing apparatus according to claim 7 , wherein the second processor compares a value based on the firmware with a predetermined value and the second processor executes the firmware based on a comparison result of the value based on the firmware with the predetermined value.

9. The information processing apparatus according to claim 8 , wherein the value based on the firmware is a hash value of the firmware.

10. The information processing apparatus according to claim 8 , wherein the second processor outputs the predetermined value using a signature and a key inside a one-time programmable memory.

11. The information processing apparatus according to claim 1 , wherein the first program is a basic input/output system program.

12. The information processing apparatus according to claim 11 , wherein the second processor compares a value based on the basic input/output system program with a different predetermined value and the first processor executes the basic input/output system program based on a comparison result of the value based on the basic input/output system program with the different predetermined value.

13. The information processing apparatus according to claim 1 , wherein the second processor cancels a reset state of the first processor in a case the first program is valid, and the first processor canceled from the reset state executes the first program.

14. The information processing apparatus according to claim 1 , wherein the information processing apparatus is an apparatus including a print function.

15. The information processing apparatus according to claim 1 , wherein the information processing apparatus is an apparatus including a read function.

16. The information processing apparatus according to claim 1 , wherein the information processing apparatus is an apparatus including a print function and a read function.

Priority Claims (1)
JP 2018-225480 · Nov 30, 2018 · national
Continuity (3)
Continuation 17164031 · Feb 1, 2021
Continuation 16693018 · Nov 22, 2019
Related Publication 20220321724A1 · Oct 6, 2022