Analysis on optimal ways to secure image encryption and decryption

In the last two decades chaos has been among the most important cryptology design methods to design modern encryption algorithms. Suggestions were found to be very vulner-able towards simple known attacks. However, these suggestions cannot be proven secure so a plan for security review of new ideas is required. So in this review paper we have addressed various techniques, security attacks, NPCR and UACI values, key size and the various key definitions, the advantages and disadvantages of various chaos based cryptosystems with special focus on designing, analyzing and implementing cryptographic algorithms that allow peoples and entities to interact securely with each other.