Harshal Tupsamudre

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In 2013, the US National Security Agency proposed two new families of lightweight block ciphers: SIMON and SPECK. Currently, linear and differential cryptanalytic results for SIMON are available in the literature but no fault attacks have been reported so far on these two cipher families. In this paper, we show that these families of ciphers are vulnerable(More)
Human-generated text passwords are vulnerable to statistical guessing attacks. The counter strategies either require building the entire system from scratch or need major rework and therefore cannot be adopted easily. In this paper, we demonstrate how a slight modification to login interface can influence users to create relatively secure text passwords. We(More)
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