  Although the protection of ownership and the prevention of unauthorized
manipulation of digital images becomes an important concern, there is also a
big issue of image source origin authentication. This paper proposes a
procedure for the identification of the image source and content by using the
Public Key Cryptography Signature (PKCS). The procedure is based on the PKCS
watermarking of the images captured with numerous automatic observing cameras
in the Trap View cloud system. Watermark is created based on 32-bit PKCS serial
number and embedded into the captured image. Watermark detection on the
receiver side extracts the serial number and indicates the camera which
captured the image by comparing the original and the extracted serial numbers.
The watermarking procedure is designed to provide robustness to image
optimization based on the Compressive Sensing approach. Also, the procedure is
tested under various attacks and shows successful identification of ownership.

Multimedia;Cryptography and Security