… • We propose an efficient lightweight authentication and key agreement protocol for
VANETs, which uses only one-way hash functions and bitwise XOR operations. • We prove the …

… Moreover, we show that Kumari et al.’s protocol does not provide the property of user … a
lightweight authentication and key agreement protocol. The correctness of the proposed protocol …

… , the protocol is vulnerable to tracking attack and fails to fulfill user untraceability. To address
these deficiencies, we present a lightweight and secure user authentication protocol based …

… a new lightweight anonymous three-factor authentication and key agreement protocol on ECC
… The proposal not only overcomes the security weaknesses in Lu et al.’s protocol, but also …

… authentication phase. In addition, this study proposes an enhanced lightweight authentication
with key-agreement protocol … The proposed protocol is lightweight and perfectly suitable …

… In this article, we propose a lightweight and anonymous authentication and key … 1) We
propose a lightweight and anonymous authentication and key agreement protocol, also called …

… introduced authentication protocol is vulnerable to the wrong session key agreement attack
… Second, we propose a lightweight authentication and key agreement protocol, which can …

… and lightweight secure protocol for authentication in IoT. Amin et al. protocol is a three factor
authenticated … We find some security weaknesses in this protocol and design a new protocol …

… a lightweight and secure authentication and key agreement protocol in the Constrained
Application Protocol … a new lightweight authentication and key agreement protocol based on the …

… 4, we propose an authentication and key agreement protocol for WBAN. Section 5 discusses
security analysis of the proposed protocol, and performance analysis is given in Sect. 6. We …