Method for preventing image modification, image capturing device and image verification method

An image capturing device, comprising:

• a processor and a counter, the counter connected to the processor;
• wherein, the processor processes a compressed image of at least one frame to obtain feature data of the compressed image of the at least one frame, encrypts the feature data to generate a checksum, generates supplemental enhancement information that at least comprises a time parameter and the checksum, and transmits and/or stores the supplemental enhancement information and the compressed image of the at least one frame together, so as to use the supplemental enhancement information to verify authenticity of the compressed image of the at least one frame;
• and
• the time parameter is a counter value of the counter, and the counter value continuously increases.

An image verification method, comprising:

• obtaining a compressed image of a plurality of frames and corresponding supplemental enhancement information;
• detecting whether the supplemental enhancement information satisfies a predetermined condition;
• if the supplemental enhancement information satisfies the predetermined condition, determining that the compressed image corresponding to the supplemental enhancement information is authentic;
• wherein, the supplemental enhancement information comprises a checksum generated from encrypting a time parameter and the compressed image, the time parameter is a counter value of a counter of an image capturing device, and the counter value continuously increases.