Biblio

Today, social communication through the Internet has become more popular and has become a crucial part of our daily life. Naturally, sending and receiving various data through the Internet has also grown a lot. Keeping important data secure in transit has become a challenge for individuals and even organizations. Therefore, the trinity of confidentiality, integrity, and availability will be essential, and encryption will definitely be one of the best solutions to this problem. Of course, for image data, it will not be possible to use conventional encryption methods for various reasons, such as the redundancy of image data, the strong correlation of adj acent pixels, and the large volume of image data. Therefore, special methods were developed for image encryption. Among the prevalent methods for image encryption is the use of DNA sequences as well as chaos signals. In this paper, a cycling 3D chaotic map and DNA sequences are used to present a new method for color image encryption. Several experimental analyses were performed on the proposed method, and the results proved that the presented method is secure and efficient.

In the growth of financial industries, the electronic payments system is a newest topic, which is to be replaced in the near future by electronic or online transaction. With the advancement of the technology, there is a strong need to build and enforce safe authentication schemes to protect user sensitive information against security threats. Protection is becoming increasingly important for companies today, and so the need for authentication is more essential than before. In single-factor authentication, there are many security problems such as password schemes. Additionally, invaders will try various ways of stealing passwords including, dictionary attacks, brute force attack, password divination, shoulder surfing, etc. This paper provides a multi-authentication system for electronic payments to address the problem. The proposed technique here combines password, biometric and OTP verification for a more reliable user authentication using a multi-factor authentication. The proposed system has three phases, namely: registration phase, an authentication phase, and transaction phase. Our proposed approach has been found to boost security efficacy for various forms of assault and authentication layers dependent on password based attacks.