\bib{1995/bocharova} \yr 1995 \mr 97m:94013 \by Irina E. Bocharova \by Boris D. Kudryashov \paper Fast exponentiation in cryptography \inbook \cite{1995/cohen} \pages 146--157 \url http://cr.yp.to/\allowbreak bib/\allowbreak entries.html#\allowbreak 1995/\allowbreak bocharova \endref