Single-lens color image encryption system

Abstract

The invention belongs to the technical field of information security and optical information processing, and provides a single-lens color image encryption system for solving the problem that a first random phase mask cannot play a role of secret key when an image is a real value in the aspect of an optical system, and solving the problem of secret key management, transmission and updating in the aspect of a secret key generation method. The technical scheme adopted by the invention is that the single-lens color image encryption system comprises four parts including (1) a secret key generation part, (2) an image encryption part, (3) a secret key transmission part and (4) an image decryption part, wherein a first random phase mask is generated by a Duffing chaotic system, and a second random phase mask is generated by a Tinkerbell chaotic system; the image encryption part can obtain an encrypted color image by integrating three encryption channels; and the secret key transmission part selects an RSA public key algorithm for encrypting a secret key used in the part (2), so as to ensure the security of secret key transmission. The single-lens color image encryption system is mainly applied to information security and optical information processing occasions.

Description

technical field [0001] The invention belongs to the technical fields of information security and optical information processing, and relates to a single-lens optical color image encryption system. Background technique [0002] As one of the most popular multimedia forms at present, digital images are widely used in the fields of politics, economy, military affairs, education and so on. In today's highly developed Internet technology, how to protect digital images from tampering, illegal copying and dissemination has important practical significance. The research on image encryption technology has become one of the hotspots in the field of information security. Because optical information processing technology has the advantages of high processing speed, high parallelism, and fast realization of convolution and correlation operations, etc., the use of optical methods for digital image encryption has aroused great interest in recent years (see literature [1]). In the optical...

AI Technical Summary

Problems solved by technology

In view of the above technical problems, the present invention provides a single-lens optical system for color image encryption, which mainly solves the problem that the first random phase mask cannot act as a key when the image is a real value from the optical system , and solve the problems of key management, transmission and key update from the key generation method

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