Color image encription method based on multi-dimentional chaotic systems

With the development of information technologies and the increase in the possibility of unauthorized access to data published on the Internet, the need for data protection has become an important issue. One of the methods that can be useful in data security is encryption. By encryption, data can be easily distributed securely in different environments. This article presents and examines a chaos theory-based encryption method for digital images. Tests and analysis on encrypted images show that the presented method has the necessary efficiency. Encryption is a method of organizing information in such a way that only authorized persons can understand it. Technically, this is the process of converting plain text to ciphertext. In simpler terms, encryption takes readable data and changes it to appear incomprehensible and random. Encryption requires the use of an encryption key to perform this operation. This key is a set of mathematical values known to both the sender and receiver of the encrypted message. Although encrypted data may seem random, encryption is done logically and predictable so that the party that owns the encrypted data and owns the key used to encrypt the data can decrypt the data and convert it to plain text. However, secure encryption must be so complex that a third party cannot guess or convert the ciphertext to plain text using various tools. In this thesis, an efficient method for image encryption is proposed. After the application, the proposed method was evaluated with various tools available for data security analysis. The results show that the proposed method is acceptable for image encryption.