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Recently, Li and Hwang proposed a biometrics-based remote user authentication scheme using smart cards [Journal of Network and Computer Applications 33 (2010) 1–5]. The scheme is based on biometrics verification, smart card and one-way hash function, and it uses the nonce rather than a synchronized clock, so it is very efficient in computational cost.(More)
BACKGROUND The Janus kinase (JAK) family of tyrosine kinases includes JAK1, JAK2, JAK3 and TYK2, and is required for signaling through Type I and Type II cytokine receptors. CP-690,550 is a potent and selective JAK inhibitor currently in clinical trials for rheumatoid arthritis (RA) and other autoimmune disease indications. In RA trials, dose-dependent(More)
Recently, Kumari et al. pointed out that Chang et al.'s scheme " Untraceable dynamic-identity-based remote user authentication scheme with verifiable password update " not only has several drawbacks, but also does not provide any session key agreement. Hence, they proposed an improved remote user authentication Scheme with key agreement on Chang et al.'s(More)