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Because of non-stop applications' growth of network environment, making communications in such ambiance security is very important. Recently, Ashok Kumar Das has proposed a scheme to recover some pitfalls in Li et al.'s scheme. Das's protocol also utilizes biometrics and random value instead of time - stamp. Besides, storing temporary nonce to withstand replay attack is an inherited aspect of this...
Communications in the wireless environments are more and more popular. Consequently, it is necessary to have a secure authentication scheme to protect transactions between users and servers from illegal adversaries. Especially, users are people vulnerable to attacks and there are many authentication schemes with smart cards proposed to guarantee them. Recently, Li et al have proposed a biometrics-based...
Communications in the wireless environments such as GSM, CDPD, 3G, and 4G are very popular. Therefore, it is necessary to have a secure authentication scheme to protect transactions between users and servers from illegal adversaries. Especially, users are people vulnerable to attacks and there are many authentication schemes with smart cards proposed to guarantee them. Recently, Chen et al have proposed...
Mobile devices (e.g., PDA, mobile phone, and notebook PC) become necessary for a convenient and modern life. Users can use them to access many applications, for example online shopping, mobile pay TV, internet banking, which have been deployed on internet or wireless networks easily. Therefore, secure communications in such wireless environments are more and more important because they protect transactions...
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