Image privacy scheme using quantum spinning and rotation

Abstract. Privacy of information is one of the utmost vital issues in the epoch of digitally advanced communication. Privacy of information can be achieved through confidentiality, which is one of the most important pillars in information security. There are varieties of protocols and algorithms either symmetric or asymmetric claiming maximum security depending on key lengths, rounds, S-boxes, etc. Modern systems are based on mathematical and logical functions, and their algorithms are based on the fundamental process of factoring large integers into their primes. With the passage of time, there have been advancements in the field to show that, if the key length is not enough, substitution boxes are not too strong, or rounds of encryption are few, then the designed encryption scheme is vulnerable to threats. We have established a scheme using quantum spinning and rotation that is applied to both symmetric and asymmetric cryptographies with minimum key space and that provides maximum security. Our scheme is purely based on rotation of phases that adds a concept in quantum cryptography. The scope of this paper is to cover the fundamental concepts of spins ½ matrices (Pauli’s matrices) and their general rotation operators as applied to asymmetric systems.