[RC5] RC5-64 HAS BEEN SOLVED

Jon-Thomas Pierce fmsguy06 at hot.rr.com
Sat Sep 28 21:14:59 EDT 2002


Is rc5-72 being solved right now?
----- Original Message -----
From: "Keith Woodworth" <kwoody at citytel.net>
To: <rc5 at lists.distributed.net>
Sent: Saturday, September 28, 2002 5:39 PM
Subject: Re: [RC5] RC5-64 HAS BEEN SOLVED


>
>
> 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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