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Geez RC5-72 is Pathetic

thorin

Diamond Member
Oct 9, 1999
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This also means that we'll hit 100% in 630,634 days at yesterday's rate.
So it'll only take ~1728 yrs at yesterday's rate to find a key and prove yet again that RC5 encryption is definately safe from brute force attacks based on today's (and tomomrrow's) technology .... but hey we didn't figure that out when it took ~5yrs to try RC5-64. :p

Thorin
 

ViRGE

Elite Member, Moderator Emeritus
Oct 9, 1999
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Moore's law is on our side; we'll do it in under 10 easily.
 

Twioz

Senior member
Oct 13, 2000
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Pathetic? Oh that must be because alien life can be found on another planet in under 1000 years? ( I love seti@home btw). First off, please think a little before posting and dissing another distributed computing project. 2nd It was at about 3000 years when we started a few months ago and we are still ramping up fast. 3rd When I started rc5-64 I had a pentium 133, I know have an 2000xp, that is one hell of a leap in power in 5 years and will continue to grow at that pace.
 

iamwiz82

Lifer
Jan 10, 2001
30,772
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Originally posted by: thorin
Link
This also means that we'll hit 100% in 630,634 days at yesterday's rate.
So it'll only take ~1728 yrs at yesterday's rate to find a key and prove yet again that RC5 encryption is definately safe from brute force attacks based on today's (and tomomrrow's) technology .... but hey we didn't figure that out when it took ~5yrs to try RC5-64. :p

Thorin

i think its better than looking for life we dont even know exists.
rolleye.gif
 

OberonBob

Member
Mar 4, 2003
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Moore's law can be taken to mean that processor speed will double every 18 months. This has proven to be true over the last 30 years. So, if no one else joins the project, but everyone continues to upgrade: in 18 months the time to complete will be about 836 years. another 18 months, 417 years. another 18 months, 207 years, 103 years, 50 years, 24 years, 11, 4, 1.25 years, and then you are done in another 18 months. so, thats:

13.5 years (would be smaller if someone wanted to do the math properly)

and that is assuming no client speed improvments, which, I believe you will see.

Add in a 10% growth in partcipants, and it will be done in 10 years. much sooner, if we are lucky and search the right part of the keyspace first.

of course, I perfer to do projects that might complete sooner, as I know that RC5-72 is probably going to be around for a while.
 

Assimilator1

Elite Member
Nov 4, 1999
24,165
524
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Originally posted by: iamwiz82
Originally posted by: thorin
Link
This also means that we'll hit 100% in 630,634 days at yesterday's rate.
So it'll only take ~1728 yrs at yesterday's rate to find a key and prove yet again that RC5 encryption is definately safe from brute force attacks based on today's (and tomomrrow's) technology .... but hey we didn't figure that out when it took ~5yrs to try RC5-64. :p

Thorin

i think its better than looking for life we dont even know exists.
rolleye.gif

Well it has to be there somewhere ,& thats the point of SETI ,to prove it:p.
Btw why do you have to stickup for 1 project by bashing another?:frown:

I personally don't think its worth it to run RC5 72 either but I don't dis anyone for doing it.
 

iamwiz82

Lifer
Jan 10, 2001
30,772
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i thought that since this was a "get your feelings" out in the open kinda thread, i would add my two cents. :)
 

thorin

Diamond Member
Oct 9, 1999
7,573
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Originally posted by: ViRGE
Moore's law is on our side; we'll do it in under 10 easily.
I can completely agree with that, I just question what it's actually going to prove.
I think its better than looking for life we dont even know exists.
Although I kinda agree that SETI is a waste of CPU time at least it has a chance to prove something that would benefit the planet. I have yet to see any real benefit if proving YET AGAIN that RC5 is not prone to brute force attacks. It isn't as if they any longer have to reprove moore's law, and it isn't as if they're advancing the art/science of distributed computing.

Thorin
 

thorin

Diamond Member
Oct 9, 1999
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It's further sad that they currently only have about 10% of the participation in RC5-72 that they had at the end of RC5-64, and I know this will pick up and that it'll bring the time to finish way way way down but that's kinda sad.

Thorin