>Recently, Om et al. proposed three-factor remote user authentication protocol using E'/> Cryptanalysis and Security Enhancement of Three-Factor Remote User Authentication Scheme for Multi-Server Environment
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首页> 外文期刊>International journal of business data communications and networking >Cryptanalysis and Security Enhancement of Three-Factor Remote User Authentication Scheme for Multi-Server Environment
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Cryptanalysis and Security Enhancement of Three-Factor Remote User Authentication Scheme for Multi-Server Environment

机译：多服务器环境三要素远程用户认证方案的密码分析和安全性增强

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>Recently, Om et al. proposed three-factor remote user authentication protocol using ElGamal cryptosystem and ensured that it is withstands to various kinds of security attacks. But, the authors review carefully Om et al.'s scheme and discover that it unable to resist three attacks (like password guessing; denial of service; and user impersonation). Moreover, their protocol is not facilitating user anonymity. To solve these security vulnerabilities, the authors devise a secure and robust anonymous identity based authentication scheme for multi-server environment. The authentication proof of the proposed scheme has validated using BAN (Burrows-Abadi-Needham) logic, which confirms the protocol facilitates mutual authentication and session-key negotiation securely. Informal security analysis also confirms that it is well protected against various security attacks. In addition, the proposed work is compared along with other schemes (in the context of smart card storage and computation costs as well as execution time).
机译： >最近，Om等等提出了一种使用ElGamal密码系统的三因素远程用户身份验证协议，并确保该协议可以抵御各种安全攻击。但是，作者仔细审查了Om等人的方案，发现它无法抵抗三种攻击（例如密码猜测，拒绝服务和用户冒充）。而且，它们的协议不能促进用户匿名。为了解决这些安全漏洞，作者设计了一种用于多服务器环境的安全且健壮的基于匿名身份的身份验证方案。该方案的身份验证证明已使用BAN（Burrows-Abadi-Needham）逻辑进行了验证，该逻辑证明该协议可安全地促进相互身份验证和会话密钥协商。非正式安全分析还证实，它可以很好地防御各种安全攻击。此外，将拟议的工作与其他方案进行了比较（在智能卡存储和计算成本以及执行时间方面）。

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