[TRC] [DISCLOSURE] Terracoin Difficulty Collapse Exploit - page 3.

celkaris

full member

Activity: 148

Merit: 100

Quote from: phrozenspite on April 11, 2013, 01:42:50 PM

It doesn't help the coin any that the difficulty jumping basically broke pooled mining and coinotron isn't doing it as far as higher constant hashrates go

BTE currently experiences a similar problem : some big mining resources were pointed to their chain, long enough to make diff skyrocket, then the miner simple left.. someone really wants a few coins to disappear Sad

Syke

legendary

Activity: 3878

Merit: 1193

Last block was at 18:31:35 at difficulty 27431. At 18:51:35 difficulty drops to 2743. He has been mining that block and the ones after it for the last 15 minutes. When 18:51 comes he'll drop a chain of blocks already pre-generated at the lower difficulty. Watch for it.

celkaris

full member

Activity: 148

Merit: 100

Quote from: Syke on April 11, 2013, 01:41:12 PM

Yes, he does have some mining power, but he's leveraging the time-travel exploit to multiply his hashing power by 10x or more.

actually no : enable the in-place logging of averaged data and you'll see the block with future ntime/timestamp has no real effect, the problem is that he can mine consecutive blocks, finally leading to the averaging taking those into account...

phrozenspite

sr. member

Activity: 266

Merit: 250

It doesn't help the coin any that the difficulty jumping basically broke pooled mining and coinotron isn't doing it as far as higher constant hashrates go

Syke

legendary

Activity: 3878

Merit: 1193

Yes, he does have some mining power, but he's leveraging the time-travel exploit to multiply his hashing power by 10x or more.

celkaris

full member

Activity: 148

Merit: 100

Quote from: Syke on April 11, 2013, 01:34:27 PM

Watch the time stamps. He's generating the blocks ahead of time and then dropping them all on the network at once.

yes, saw that.

If there was enough miners ... he should not be able to mine so many consecutive blocks, that's what i was saying.

If people want to protect their coins ... mining is the only option
(supposing he's not the guy behind your favorite pool of course :p )

Syke

legendary

Activity: 3878

Merit: 1193

Watch the time stamps. He's generating the blocks ahead of time and then dropping them all on the network at once.

celkaris

full member

Activity: 148

Merit: 100

Quote from: Syke on April 11, 2013, 01:20:23 PM

Some is time-travel exploiting the new difficulty calculation right now. The generated coins are going to:

http://cryptocoinexplorer.com:3750/address/111exFkjLXP5mXmEfVqGd2r7bXQhVhux3

i guess he can do that because there are not enough miners on TRC, looking atblocks, i see he is able to mine multiple consecutive blocks at a diff between 2k and 14k

If he was unable to mine multiple consecutive blocks, i'm pretty sure the averaging thing would more or less ignore those

Syke

legendary

Activity: 3878

Merit: 1193

Some is time-travel exploiting the new difficulty calculation right now. The generated coins are going to:

http://cryptocoinexplorer.com:3750/address/111exFkjLXP5mXmEfVqGd2r7bXQhVhux3

luffy

hero member

Activity: 607

Merit: 500

i don't consider any coin as competition to each other. every coin is different and every coin can be useful in its way.
btw, SK you are great!

crazy_rabbit

legendary

Activity: 1204

Merit: 1002

RUM AND CARROTS: A PIRATE LIFE FOR ME

Quote from: Tomatocage on April 04, 2013, 11:09:28 PM

Terracoin has an active dev?

Yes it does. He will answer questions at the sourceforge page or the github page and lurks in the forums.

jubalix

legendary

Activity: 2632

Merit: 1023

Tomatocage

legendary

Activity: 1554

Merit: 1222

brb keeping up with the Kardashians

Terracoin has an active dev?

Walter Rothbard

sr. member

Activity: 476

Merit: 250

Bytecoin: 8VofSsbQvTd8YwAcxiCcxrqZ9MnGPjaAQm

Quote from: Sunny King on April 04, 2013, 04:59:49 PM

Quote from: crazy_rabbit on April 04, 2013, 04:52:58 PM

Thank you SunnyKing for pointing this out to the TRC dev's!

Best way to thank me is for the terracoin fans to stop trashtalking ppcoin just because we are in competition. I advocate competing fairly with positive spirit.

Thanks,

Earnest agreement! Thank you for your contribution, and I wish you and your coin's users the best.

(And even though I have coin preferences, I hope nobody ever reads what I say as trashing other coins or their users.)

jar

newbie

Activity: 48

Merit: 0

That's not a patch to fix anything. Do not apply that. It was a potential exploit that has already patched (again, not that code). It's my understanding that that code won't get you anywhere with exploiting anything in the current branch.

flound1129

hero member

Activity: 938

Merit: 1000

www.multipool.us

nevermind.

d4rkbreaker

member

Activity: 83

Merit: 10

Quote from: ?? on ??

But it is the same wallet version I have been using for weeks now. I had it up and running before, while and after difficulty calculation change went live
and it is working now without problems.

I just installed the new stable release. Why is it re-downloading all the transactions that I had already?

d4rkbreaker

member

Activity: 83

Merit: 10

Quote from: ?? on ??

I just started wallet (newest stable build, it worked earlier today) and got this error message. Is it related to bug?

Uninstall, reinstall previous stable build and check for this error message. If it turns out that the previous builds work, then someone screwed up the source files and compiled.

crazy_rabbit

legendary

Activity: 1204

Merit: 1002

RUM AND CARROTS: A PIRATE LIFE FOR ME

Quote from: Sunny King on April 04, 2013, 04:59:49 PM

Quote from: crazy_rabbit on April 04, 2013, 04:52:58 PM

Thank you SunnyKing for pointing this out to the TRC dev's!

Best way to thank me is for the terracoin fans to stop trashtalking ppcoin just because we are in competition. I advocate competing fairly with positive spirit.

Thanks,

Deal.

Sunny King

legendary

Activity: 1205

Merit: 1010

Quote from: crazy_rabbit on April 04, 2013, 04:52:58 PM

Thank you SunnyKing for pointing this out to the TRC dev's!

Best way to thank me is for the terracoin fans to stop trashtalking ppcoin just because we are in competition. I advocate competing fairly with positive spirit.

Thanks,

Topic: [TRC] [DISCLOSURE] Terracoin Difficulty Collapse Exploit - page 3. (Read 10180 times)