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    题名: Enhanced Two-Factor Authentication and Key Agreement Using Dynamic Identities in Wireless Sensor Networks
    作者: I-Pin Chang, Tian-Fu Lee, Tsung-Hung Lin and Chuan-Ming Liu
    贡献者: 圖書館
    关键词: authentication
    key agreement
    dynamic identity
    wireless sensor networks
    password
    smartcard
    日期: 2015
    上传时间: 2016-10-20 15:14:04 (UTC+8)
    摘要: Key agreements that use only password authentication are convenient in communication networks, but these key agreement schemes often fail to resist possible attacks, and therefore provide poor security compared with some other authentication schemes. To increase security, many authentication and key agreement schemes use smartcard authentication in addition to passwords. Thus, two-factor authentication and key agreement schemes using smartcards and passwords are widely adopted in many applications. Vaidya et al. recently presented a two-factor authentication and key agreement scheme for wireless sensor networks (WSNs). Kim et al. observed that the Vaidya et al. scheme fails to resist gateway node bypassing and user impersonation attacks, and then proposed an improved scheme for WSNs. This study analyzes the weaknesses of the two-factor authentication and key agreement scheme of Kim et al., which include vulnerability to impersonation attacks, lost smartcard attacks and man-in-the-middle attacks, violation of session key security, and failure to protect user privacy. An efficient and secure authentication and key agreement scheme for WSNs based on the scheme of Kim et al. is then proposed. The proposed scheme not only solves the weaknesses of previous approaches, but also increases security requirements while maintaining low computational cost.
    關聯: Sensors 2015, 15(12), 29841-29854
    显示于类别:[資訊工程系(所)] 【資訊工程系所】期刊論文

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