[RC5] RC5-64 HAS BEEN SOLVED

Keith Woodworth kwoody at citytel.net
Sat Sep 28 16:39:01 EDT 2002



On Fri, 27 Sep 2002, Richard Menedetter wrote:

|->26 Sep 2002, Keith Woodworth <kwoody at citytel.net> wrote:
|->
|-> KW> Kind of nifty though its been solved. Wonder how long RC5-72 will
|-> KW> take? 8 yrs?
|->Hmmm rc5-72 is 256 [2^(72-64)] times harder then rc5-64.
|->
|->We needed nearly 5 years for rc5-64.
|->If time needed decreases by a factor of 5 we would need 256 years to solve it.

Ouch...be dead looong before its solved then. 

Keith

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