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Massive user generated contents in social media platforms like Twitter asks for analyzing conversations on topics of interest. Unlike traditional text-dominant settings, such platforms are rich in social interactions that are accompanied with textual content, e.g., reply and mention. Furthermore, the proliferation of mobile devices equipped with geo-positioning components creates a growing volume...
In this paper, we analyze collision resistance of the JH hash function in the ideal primitive model. The JH hash function is one of the five SHA-3 candidates accepted for the final round of evaluation. The JH hash function uses a mode of operation based on a permutation, while its security has been elusive even in the random permutation model. One can find a collision for the JH compression function...
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