Cryptology ePrint Archive: BibTeX Citation of Report 2015/840

    author       = {Qianqian Yang and
		    Lei Hu and
		    Siwei Sun and
		    Ling Song},
    title        = {Related-key Impossible Differential Analysis of Full Khudra},
    howpublished = {Cryptology ePrint Archive, Report 2015/840},
    year         = {2015},
    note         = {\url{}},

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.

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