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S.R. Ryu

Bio: S.R. Ryu is an academic researcher from Kyungpook National University. The author has contributed to research in topics: Password & Smart card. The author has an hindex of 1, co-authored 1 publications receiving 218 citations.

Papers
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Journal ArticleDOI
TL;DR: An authentication system, which does not require a password table to authenticate its users, is proposed, and introducing smart card and fingerprint verification so that the scheme can withstand message replaying attack and impersonation.
Abstract: An authentication system, which does not require a password table to authenticate its users, is proposed. By removing a password table, and introducing smart card and fingerprint verification, the scheme can be more secure and reliable. In addition, the scheme can withstand message replaying attack and impersonation.

225 citations


Cited by
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Journal ArticleDOI
TL;DR: An efficient biometric-based remote user authentication scheme using smart cards, in which the computation cost is relatively low compared with other related schemes and the security is based on the one-way hash function, biometrics verification and smart card.

493 citations

Journal ArticleDOI
TL;DR: This paper proposes a biometrics-based authentication scheme for multiserver environment using elliptic curve cryptography and demonstrates the completeness of the proposed scheme using the Burrows-Abadi-Needham logic.
Abstract: The authentication scheme is an important cryptographic mechanism, through which two communication parties could authenticate each other in the open network environment To satisfy the requirement of practical applications, many authentication schemes using passwords and smart cards have been proposed However, passwords might be divulged or forgotten, and smart cards might be shared, lost, or stolen In contrast, biometric methods, such as fingerprints or iris scans, have no such drawbacks Therefore, biometrics-based authentication schemes gain wide attention In this paper, we propose a biometrics-based authentication scheme for multiserver environment using elliptic curve cryptography To the best of our knowledge, the proposed scheme is the first truly three-factor authenticated scheme for multiserver environment We also demonstrate the completeness of the proposed scheme using the Burrows–Abadi–Needham logic

347 citations

Journal ArticleDOI
TL;DR: An improved biometrics-based remote user authentication scheme that removes the aforementioned weaknesses and supports session key agreement is proposed.

257 citations

Journal ArticleDOI
TL;DR: A generic and secure framework is proposed to upgrade two-Factor authentication to three-factor authentication, which not only significantly improves the information assurance at low cost but also protects client privacy in distributed systems.
Abstract: As part of the security within distributed systems, various services and resources need protection from unauthorized use. Remote authentication is the most commonly used method to determine the identity of a remote client. This paper investigates a systematic approach for authenticating clients by three factors, namely password, smart card, and biometrics. A generic and secure framework is proposed to upgrade two-factor authentication to three-factor authentication. The conversion not only significantly improves the information assurance at low cost but also protects client privacy in distributed systems. In addition, our framework retains several practice-friendly properties of the underlying two-factor authentication, which we believe is of independent interest.

224 citations

Journal ArticleDOI
TL;DR: This paper points out that ElGamal's fingerprint-based remote user authentication scheme is vulnerable to masquerade attack, and proposes a new scheme to enhance their security.

211 citations