In 2009, Liao and Wang proposed a secure dynamic ID based remote user authentication scheme for multi-server environments. They achieved user anonymity by using secure dynamic IDs instead of static IDs. Recently, Hsiang and Shih proposed an improved scheme to fix the security flaws found in Liao-Wang’s scheme. Hsiang and Shih claimed that their scheme maintains the benefits and increases the se...

Mutual authentication is essential to guarantee the confidentiality, integrity, and availability of an RFID system. One area of interest is the design of lightweight mutual authentication protocols that meet the limited computational and energy resources of the tags. These protocols use simple operations such as permutation and cyclic redundancy code for cryptographic purposes. However, these f...

In recent years, there has been increasing interest in interconnecting satellite and ATM networks because both share common characteristics of the ability to provide bandwidth-on-demand and flexibility of integrating voice, video and data services. There are several new satellite constellation proposals that support multimedia service and transport ATM traffic. For a successful implementation o...

Recently, as low-cost radio frequency identification (RFID) becomes more pervasive in our daily lives, RFID systems may create new threats to security and privacy of individuals and organizations. It must have secure mutual authentication mechanisms to protect privacy information. However, the previous works on designing security protocols for RFID either do not conform to the EPCglobal Class 1...

The World Wide Web has become the de facto interface for consumer oriented electronic commerce. So far the interaction between consumers and merchants is mostly limited to providing information about products and credit card based payments for mail orders. This is largely due to the lack of security currently available for commercial transactions. At the moment the only security mechanism prese...

Password authentication remains to be the most common form of user authentication. So far, many strong-password authentication schemes based on hash functions have been proposed, however, none is sufficiently secure and efficient. Based on the analysis of attacks against OSPA(Optimal Strong Password Authentication) protocol, we present a hash-based StrongPassword mutual Authentication Scheme (S...

The multi hop mesh networkan extension of wireless mesh network by ad hoc networkis one promising wireless network architecture in the near future. Securing access network is the first protection against attacker access to network services. Authentication is an essential for securing the access to the network. TLS/SSL (Transport Layer Security/Secure Socket Layer) protocol is one famous secure ...

This paper presents a comprehensive survey of existing authentication and privacy-preserving schemes for 4G and 5G cellular networks. We start by providing an overview of existing surveys that deal with 4G and 5G communications, applications, standardization, and security. Then, we give a classification of threat models in 4G and 5G cellular networks in four categories, including, attacks again...