Cryptology ePrint Archive: BibTeX Citation of Report 2021/642

    author       = {Nihal Vatandas and
		    Rosario Gennaro and
		    Bertrand Ithurburn and
		    Hugo Krawczyk},
    title        = {On the Cryptographic Deniability of the Signal Protocol},
    howpublished = {Cryptology ePrint Archive, Report 2021/642},
    year         = {2021},
    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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