Information processing apparatus to verify falsification of data, control method therefor, and storage medium storing control program thereof

A control method for an information processing apparatus, the control method comprising:

• obtaining a moving image file including moving image data constituted by frames, a first-type hash value generated by executing a hash function on whole moving image data when the moving image data is captured, and second-type hash values generated by executing the hash function on frame groups obtained by grouping the frames of the moving image data when the moving image data is captured;
• executing a first process of detecting falsification of the moving image data by using the first-type hash value;
• determining whether falsification of the moving image data is detected in the first process;
• and
• controlling whether to execute a second process to detect falsification of the moving image data by using the second-type hash values when it is determined that falsification of the moving image data is detected in the first process.

A non-transitory computer-readable storage medium storing a control program causing a computer to execute a control method for an information processing apparatus, the control method comprising:

• obtaining a moving image file including moving image data constituted by frames, a first-type hash value generated by executing a hash function on whole moving image data when the moving image data is captured, and second-type hash values generated by executing the hash function on frame groups obtained by grouping the frames when the moving image data is captured;
• executing a first process of detecting falsification of the moving image data by using the first-type hash value;
• determining whether falsification of the moving image data is detected in the first process;
• and
• controlling whether to execute a second process to detect falsification of
• the moving image data by using the second-type hash values when it is determined that falsification of the moving image data is detected in the first process.