Image encryption scheme by using iterative random phase encoding in gyrator transform domains

► In this manuscript, a novel encryption algorithm has been proposed and researched. ► The chaotic mapping is introduced to generate the random data regarding as the random phase. ► An iterative process is used for designing the encryption algorithm. In this encryption method, the parameters of chaotic mapping will serve as additional key to enhance the security of encryption scheme. The angle parameter of gyrator transform is additional key as well.