Cryptology ePrint Archive: BibTeX Citation of Report 2004/090

    author       = {Ratna Dutta and
		    Rana Barua and
		    and Palash Sarkar},
    title        = {Provably Secure Authenticated Tree Based Group Key Agreement Protocol},
    howpublished = {Cryptology ePrint Archive, Report 2004/090},
    year         = {2004},
    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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