The cryptographic techniques often stored on hardware devices are easy to hack as the keys required for encrypting or decrypting the data must be stored along with the architecture on hardware. This increases a necessity to develop an alternative to key-storing problem. As a solution, a physical unclonable function is proposed. Physical Unclonable Function are circuits which are made up of simple logic devices which are easy to analyse, but it is hard to predict the outputs of such systems.

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... e circuits will be used for key generation for the Advanced Encryption Standard algorithm for data hiding, as part of the proposed project work.