Image Cryptosystem in Optical Gyrator Transform Domain Using Audio Keys

Two remote sensing image encryption algorithms based on the randomness of audio channel sequences are proposed and their robustness is verified by many attack experiments. The first algorithm uses to encrypt pixels in RMD. Compared with traditional algorithms, this has high security can resist stronger password attacks. However, takes a long time. Considering that information sometimes needs be transmitted urgently, second proposed. By combining vocal tract random phase form new public private keys, number computation amount dislocations reduced. short time but low security.