The close tracking of nuclear assets is of the utmost importance in the continuation of nuclear material management. Through the assignment of universal unique identifiers along with clandestine embedded information, an unclonable identifier can be assigned to nuclear materials to create a strong assurance of tamper resistance. Our method utilizes an asymmetric steganographic embedding process that not only allows high-density information storage and tiered information access, but also for an unclonable printing process. Our method preserves the image quality of the cover media to prevent the detection of the clandestine information with a PSNR higher than 30dB. Additionally, the bit error rate of the steganographed data is negligible as to be unnoticeable. This innovative process provides security and strong assurance of tamper proofing to the employing country towards the aim of nuclear nonproliferation.
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