Image processing apparatus, having second processor to verify boot program has been altered, method of controlling the same, and storage medium

A method of controlling an image processing apparatus that comprises one or more memories configured to store a verification program and a boot program, a first processor, a second processor, and a power controller, the method comprising:

• in the second processor,
• executing the verification program to verify, based on hash data, whether the boot program stored in the one or more memories has been altered,
• in the power controller,
• powering down the second processor when the verification of whether the boot program stored in the one or more memories has been altered is completed by the second processor, and
• supplying power to the first processor even when the second processor is powered down, and
• in the first processor,
• executing the boot program if the second processor has verified that the boot program has not been altered and not executing the boot program if the second processor has determined that the boot program has been altered.

A non-transitory computer-readable storage medium storing a computer program for causing a computer to execute a method of controlling an image processing apparatus that comprises one or more memories configured to store a verification program and a boot program, a first processor, a second processor, and a power controller, the method comprising:

• in the second processor,
• executing the verification program to verify whether the boot program stored in the one or more memories has been altered,
• in the power controller,
• powering down the second processor based on completion when the verification of whether the boot program stored in the one or more memories has been altered is completed by the second processor, and
• supplying power to the first processor even when the second processor is powered down, and
• in the first processor,
• executing the boot program if the second processor has verified that the boot program has not been altered and not executing the boot program if the second processor has determined that the boot program has been altered.