Cryptology ePrint Archive: Report 2014/303
On the security of Xu et al.'s authentication and key agreement scheme for telecare medicine information systems
SK Hafizul Islam
Abstract: In 2014, Xu et al. proposed a two-factor mutual authentication and
key agreement scheme for telecare medicine information system (TIMS)
based on elliptic curve cryptography (ECC). However, it has been
shown that Xu et al.'s scheme is not suitable for practical use as
it is many problems. As a remedy, an improved scheme is proposed
with better security and functionality attributes.
Category / Keywords: Anonymity; User authentication; Security; Smartcard, Cryptanalysis; Hash function; Password.
Date: received 29 Apr 2014, last revised 1 May 2014, withdrawn 26 May 2014
Contact author: hafi786 at gmail com
Available format(s): (-- withdrawn --)
Version: 20140526:164257 (All versions of this report)
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