Abstract
A quantum computer is a paradigm of information processing that can show remarkable possibilities of exponentially improved information processing. However, this paradigm could disrupt the current cryptosystem, which is called quantum computing attacks, by calculating factoring problem and discrete logarithm problem. Recently, NTRU is applied to various security systems, because it provides security against to provide secu-rity against quantum computing attacks. Furthermore, NTRU provides similar security level and efficient computation time of encryption/decryption compared to traditional PKC. In 2018, Jeong et al. proposed an user authentication and key distribution scheme using NTRU. They claimed that their scheme provides various security properties and secure against quantum comput-ing attacks. In this paper, we demonstrate that their scheme has security pitfalls and incorrectness in login and authentication phase. We also suggest countermeasures to fix the incorrectness and provide security against various attacks.
Highlights
Development of Internet of Things (IoT) technology help users connect service providers and fast and utilize various services such as Health care, SmartHome, SmartGrid, and so on
RSA and elliptic curve cryptosystem (ECC) are major the examples of current cryptosystems based on factorization problem (FP) and discrete logarithm problem (DLP)
The scheme is vulnerable to quantum computing attacks, such as Shor [5] or Grover [6] algorithm. To overcome these security pitfalls, Jeong et al proposed an efficient NTRU-based authentication protocol in IoT environments [14] in 2018. They proposed user authentication and key agreement protocols using NTRU and claimed their scheme is secure against quantum computing attacks and prevents impersonations attack and session key disclosure attack
Summary
Development of Internet of Things (IoT) technology help users connect service providers and fast and utilize various services such as Health care, SmartHome, SmartGrid, and so on. RSA and elliptic curve cryptosystem (ECC) are major the examples of current cryptosystems based on FP and DLP These algorithms are vulnerable to a quantum computing attack. The scheme is vulnerable to quantum computing attacks, such as Shor [5] or Grover [6] algorithm To overcome these security pitfalls, Jeong et al proposed an efficient NTRU-based authentication protocol in IoT environments [14] in 2018. They proposed user authentication and key agreement protocols using NTRU and claimed their scheme is secure against quantum computing attacks and prevents impersonations attack and session key disclosure attack. We propose countermeasures for the weaknesses of Jeong et al.’s scheme
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