Encryption method based on high-dimensional interative functions

Abstract

The present disclosure discloses an encryption method based on high-dimensional iterative functions, belonging to the technical field of data encryption. The system comprises the following steps: s1: establishing calculation parameters, determining plaintext space p, ciphertext space C, and a private key sk through calculation parameters, s2: constructing an iterative function system, and obtaining a corresponding public key pk; s3: for plaintext w and ciphertext c, converting plaintext w to be encrypted into plaintext space C for encryption and decryption. The present disclosure adopts the method to construct an IFS different from previous forms, and constructing an encryption system based on a two-dimensional IFS. In addition, the present disclosure improves randomness in selecting encryption parameters, and due to the design of trapdoor functions, an existence of nonlinearity enhances a security of the encryption system.

Dependencies are inferred from the claim text.