Keynotes: Information Hiding and Image Encryption with Chaotic Systems and Optimization
2022
With the significant development and achievements in information technology, securely protecting crucial information and data from undesirable accesses has become an important problem in information science.Information hiding techniques can securely hide important information into digital media such as images, documents, videos etc.On the other hand, image encryption methods can encrypt an image such that its content cannot be seen or obtained by an adversary side.In this talk, I will present a new algorithmic framework for secure information hiding and image encryption.The framework utilizes chaotic systems for the encryption of information and develops objectives that can measure the security of hidden information or encrypted images.Objectives can be optimized with different optimization methods to significantly enhance the security of hidden information or encrypted images.In addition, I will present experimental results obtained with two algorithms developed based on the framework and discuss their advantages and disadvantages in practice.xxxv