Security is an important issue that should be taken care of by every system. In recent years, however, attackers are constantly developing themselves with new techniques to obtain personal information on the network. As systems evolve, the data that needs to be protected is increasingly appreciated and carries a higher risk of attack. As with many attacks such as MITM, there are solutions against this attacks. Nevertheless, these safety measures must be developed continuously. For this reason, we have developed a new system architecture with user-defined authentication against the intruders for the systems having large amount of data transmission rate. To maintain integrity of data, over a reliable system is that all incoming data are authenticated when data send to the server, on the other hand, in this system, the user-defined authentication can provide fast communication and it can decrease authentication time. The proposed system introduced in the present study checks for any changes in our instantaneous data. Moreover, we control the data integrity on simple devices such as sensors and motors or other industrial devices. Instead of using encryption, basically client-server based authentication system is used to avoid complex operations and protect the big data.Index Terms-Client-server based authentication, IIoT, MITM, Security M. KARA, is
Peer-to-peer VoIP applications are exposed to threats in the Internet environment as they carry out conversations over the Internet, which is an electronic communication line, and its security has always been largely a matter of concern. Authentication of the caller is the first line of defense among the security principles and is an important principle to provide security in VoIP application. Authentication methods in VoIP applications are usually based on trusted third parties or through centralized architecture. This situation creates problems in terms of single point of failure and privacy in call security over IP based communications. However, blockchain technology with a distributed architecture offers an innovative solution to multimedia communication authentication model. In this paper, a blockchain-based mutual authentication scheme for VoIP applications is proposed. In addition, the model's having a comprehensive security structure against various threats is explained via security and communication cost analysis. The proposed schema shows better performance than the methods that make a verification through the centralized architecture in the literature. The proposed model has been formally verified using the AVISPA tool, and it has been proven that the model is safe against potential threats.
The Internet of things (IoT) became quickly one of the most popular and most discussed topics in research. Studies paid attention to the Internet stuff, primarily to new products that aim to achieve greater efficiency and simplicity in life. IoT may cover several fields of the smart environment. Because of the data exposure that occurs when data is transferred via various channels, data protection issues have become a major problem as the company continues to expand. When user privacy and property are taken into consideration, the situation may become much worse. As a result, the authentication process for communicating entities has garnered considerable attention. In this paper, we proposed a secure authentication model for smart home applications, which privacy considered and complies with the General Data Protection Regulation GDPR. The proposed scheme improved the existing authentication schemes' performance and security level. This work based on the Elliptic curve cryptography ECC, one-way hash function, and XOR operation. The proposed lightweight authentication model is suitable for resource-constrained devices. This study is developing the offline direct authentication model to authenticate users and IoT devices in the local network. In addition, our scheme uses the online authentication server to authenticate all system parts.
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