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Topic: Possible 51% Attack on fairbrix (fbx) (Read 5189 times)

legendary
Activity: 1708
Merit: 1020
October 07, 2011, 09:48:00 AM
#54

I'll say that again. A known thief has most of the FBX in existence and most of the hashing power too. That is plenty to control markets (if one is ever created for FBX) and mess with the network. If these new coins were created because Lolcust might do something wrong, how can we support them when we KNOW that something worse has already happened?

This made me laugh. Right now if the reported 1600 blocks "stolen" in the attack is true that is only 26% of the coins in existence now.... Lolcust has over 95% of tenebrix

and most the remaining 5% of tenebrix are probably also concentrated in a few hands. bitcoinexpress, art and a couple more

I wonder how long it will take until someone will hack the tbx faucet...     Tongue

1) ya know, there is no such thing as "remaining 5% of tenebrix" since there is no such thing as tenebrix upper limit. Or rather, there is  -136 billions, give or take something.

I'll leave it up to you to calculate how much of "total possible TBX I've squatted.

2) hacking tenebrix faucet's wallet will give you 500 TBX at most - the whole point of fueling it in batches of 500 is to make it less lucrative target for break-ins

3) I've just noticed that your site mildly implies that efficient FPGA implementations of TBX are likely. This is not true, see "scaling questions" thread.
1) how much % of currently mined coins do you have, does the 51% dude have?
2) I knew you would say that. Damn. So let's say your wallet would be stolen. Would TBX be destroyed?
3) check
4) Is the scrypt algorithm secure btw?

Isn't everyone a little bit satoshi? Some should be much more satoshi.


member
Activity: 112
Merit: 11
Hillariously voracious
October 06, 2011, 06:40:46 PM
#53
I am Satoshi.

I thought it's quite obvious, really.
hero member
Activity: 630
Merit: 500
Posts: 69
October 06, 2011, 03:47:51 PM
#52
Everybody knows he is an idiot. He attacks Namecoin then SC then Fairbrix BUT why not Tenecrapix !? Because he is artforz which is also known as lolcust and they have interest to not attack tenecrapix !!!

I see the Art as Lolcust, but then BitcoinXpress too.   I don't know.
member
Activity: 112
Merit: 11
Hillariously voracious
October 06, 2011, 01:41:50 PM
#51

I'll say that again. A known thief has most of the FBX in existence and most of the hashing power too. That is plenty to control markets (if one is ever created for FBX) and mess with the network. If these new coins were created because Lolcust might do something wrong, how can we support them when we KNOW that something worse has already happened?

This made me laugh. Right now if the reported 1600 blocks "stolen" in the attack is true that is only 26% of the coins in existence now.... Lolcust has over 95% of tenebrix

and most the remaining 5% of tenebrix are probably also concentrated in a few hands. bitcoinexpress, art and a couple more

I wonder how long it will take until someone will hack the tbx faucet...     Tongue

1) ya know, there is no such thing as "remaining 5% of tenebrix" since there is no such thing as tenebrix upper limit. Or rather, there is  -136 billions, give or take something.

I'll leave it up to you to calculate how much of "total possible TBX I've squatted.

2) hacking tenebrix faucet's wallet will give you 500 TBX at most - the whole point of fueling it in batches of 500 is to make it less lucrative target for break-ins

3) I've just noticed that your site mildly implies that efficient FPGA implementations of TBX are likely. This is not true, see "scaling questions" thread.
legendary
Activity: 1708
Merit: 1020
October 06, 2011, 11:10:47 AM
#50

I'll say that again. A known thief has most of the FBX in existence and most of the hashing power too. That is plenty to control markets (if one is ever created for FBX) and mess with the network. If these new coins were created because Lolcust might do something wrong, how can we support them when we KNOW that something worse has already happened?

This made me laugh. Right now if the reported 1600 blocks "stolen" in the attack is true that is only 26% of the coins in existence now.... Lolcust has over 95% of tenebrix

and most the remaining 5% of tenebrix are probably also concentrated in a few hands. bitcoinexpress, art and a couple more

I wonder how long it will take until someone will hack the tbx faucet...     Tongue
hero member
Activity: 840
Merit: 1000
October 05, 2011, 01:16:03 PM
#49
Why are you all considering that forerunning the chain and trigger a reorg = stealing?
It is allowed by the protocol, therefore it is legit.
It happens sometime at a small scale: when two miners find a block at the same time, but one gets a first confirmation quicker, would that be stealing if the miner who is behind catches up and orphans the blocks of the first miner? Why should he resign if protocol allows him to fight back and he knows he has got enough hash power to do that? Tuning his client to continue on the same chain no matter what is a rational strategy knowing that his chain will be the longest at some point in the future.   
Now what if it takes him two blocks to catch up?
What if it takes him three? ten? one thousand?
When does it become stealing?

Let's face it : attacking or locked-mining the same chain when one knows that he has more power is a valid and profitable mining strategy, so it is bound to happen over and over again until it is ruled out by the protocol.
It is stealing because it was done with malicious intent.  Small reorgs caused by honest miners are neither intentional nor malicious. 
hero member
Activity: 518
Merit: 500
October 05, 2011, 12:22:23 PM
#48
BitcoinEXpress admitted to doing the attack here :
https://bitcointalksearch.org/topic/announce-tenebrix-a-cpu-friendly-gpu-hostile-cryptocurrency-45667

Makes me wonder if he does anything else than attack alternate block chains. Roll Eyes

Everybody knows he is an idiot. He attacks Namecoin then SC then Fairbrix BUT why not Tenecrapix !? Because he is artforz which is also known as lolcust and they have interest to not attack tenecrapix !!!

Seriously, somebody should give crapple a call and bait this vandal out.

No problem, we can start over. You know what, but this little ugly turd of man it is going to be a loser for rest of his shitty life.
He can prance around here and do attacks left and right, but nothing changes. In real life, the one that actually matters, hes is still a human turd.


Well put. He is a disgraceful and pathetic moron. Why not attack Tenecrapix too, mr apple employee !?
legendary
Activity: 910
Merit: 1000
Quality Printing Services by Federal Reserve Bank
October 05, 2011, 12:10:03 PM
#47
BitcoinEXpress admitted to doing the attack here :
https://bitcointalksearch.org/topic/announce-tenebrix-a-cpu-friendly-gpu-hostile-cryptocurrency-45667

Makes me wonder if he does anything else than attack alternate block chains. Roll Eyes

Everybody knows he is an idiot. He attacks Namecoin then SC then Fairbrix BUT why not Tenecrapix !? Because he is artforz which is also known as lolcust and they have interest to not attack tenecrapix !!!

Seriously, somebody should give crapple a call and bait this vandal out.

No problem, we can start over. You know what, but this little ugly turd of man it is going to be a loser for rest of his shitty life.
He can prance around here and do attacks left and right, but nothing changes. In real life, the one that actually matters, hes is still a human turd.
hero member
Activity: 518
Merit: 500
October 05, 2011, 11:41:27 AM
#46
BitcoinEXpress admitted to doing the attack here :
https://bitcointalksearch.org/topic/announce-tenebrix-a-cpu-friendly-gpu-hostile-cryptocurrency-45667

Makes me wonder if he does anything else than attack alternate block chains. Roll Eyes

Everybody knows he is an idiot. He attacks Namecoin then SC then Fairbrix BUT why not Tenecrapix !? Because he is artforz which is also known as lolcust and they have interest to not attack tenecrapix !!!

Seriously, somebody should give crapple a call and bait this vandal out.
full member
Activity: 210
Merit: 100
October 05, 2011, 08:58:58 AM
#45
He certainly claimed to have done it.
That doesn't mean he did, though.
sr. member
Activity: 352
Merit: 250
Firstbits: 1m8xa
October 05, 2011, 06:02:19 AM
#44
BitcoinEXpress admitted to doing the attack here :
https://bitcointalksearch.org/topic/announce-tenebrix-a-cpu-friendly-gpu-hostile-cryptocurrency-45667

Makes me wonder if he does anything else than attack alternate block chains. Roll Eyes
hero member
Activity: 770
Merit: 500
October 05, 2011, 04:24:06 AM
#43
Why are you all considering that forerunning the chain and trigger a reorg = stealing?
It is allowed by the protocol, therefore it is legit.
It happens sometime at a small scale: when two miners find a block at the same time, but one gets a first confirmation quicker, would that be stealing if the miner who is behind catches up and orphans the blocks of the first miner? Why should he resign if protocol allows him to fight back and he knows he has got enough hash power to do that? Tuning his client to continue on the same chain no matter what is a rational strategy knowing that his chain will be the longest at some point in the future.   
Now what if it takes him two blocks to catch up?
What if it takes him three? ten? one thousand?
When does it become stealing?

Let's face it : attacking or locked-mining the same chain when one knows that he has more power is a valid and profitable mining strategy, so it is bound to happen over and over again until it is ruled out by the protocol.
member
Activity: 112
Merit: 11
Hillariously voracious
October 04, 2011, 04:20:23 PM
#42

I'll say that again. A known thief has most of the FBX in existence and most of the hashing power too. That is plenty to control markets (if one is ever created for FBX) and mess with the network. If these new coins were created because Lolcust might do something wrong, how can we support them when we KNOW that something worse has already happened?

This made me laugh. Right now if the reported 1600 blocks "stolen" in the attack is true that is only 26% of the coins in existence now.... Lolcust has over 95% of tenebrix

But I didn't steal them from some third party - feel the difference  (since TBX has no upper limit on coin mining, you can't even say I squatted them from future generations of minerdom Cheesy)
sr. member
Activity: 437
Merit: 250
October 04, 2011, 04:09:54 PM
#41

I'll say that again. A known thief has most of the FBX in existence and most of the hashing power too. That is plenty to control markets (if one is ever created for FBX) and mess with the network. If these new coins were created because Lolcust might do something wrong, how can we support them when we KNOW that something worse has already happened?

This made me laugh. Right now if the reported 1600 blocks "stolen" in the attack is true that is only 26% of the coins in existence now.... Lolcust has over 95% of tenebrix
member
Activity: 112
Merit: 11
Hillariously voracious
October 03, 2011, 11:30:14 AM
#40
Let's rename fairbrix into Hax since a hacker now controls the biggest stash (and possibly still has quite a share in net performance)

BTW, that would give the rebranded fairbrix a ready-made mascot

sr. member
Activity: 406
Merit: 257
October 03, 2011, 11:24:33 AM
#39
there's no point in mining fairbrix because they are not fair anymore
forget it, there should only be ONE gpu blockchain and that's bitcoin (namecoin can stay through merged mining)
and the cpu blockchains will fight it out and only one will survive
Who said that life was fair?
If merge mining can do the trick for gpu mined currency, it can also do the trick for CPU mined ones.


Namebrix? Grin
member
Activity: 98
Merit: 13
October 03, 2011, 11:19:10 AM
#38
+1

I've already stated how I feel about the current state of fairbrix. I think a far more interesting and useful topic might be to talk about starting up merged mining for CPU mined coins. If that was done would it be easy for a person starting a coin type to add theirs to the other coins being merged mined? <--- lol
hero member
Activity: 770
Merit: 500
October 03, 2011, 11:09:37 AM
#37
there's no point in mining fairbrix because they are not fair anymore
forget it, there should only be ONE gpu blockchain and that's bitcoin (namecoin can stay through merged mining)
and the cpu blockchains will fight it out and only one will survive
Who said that life was fair?
If merge mining can do the trick for gpu mined currency, it can also do the trick for CPU mined ones.

hero member
Activity: 658
Merit: 500
October 03, 2011, 10:57:06 AM
#36
there's no point in mining fairbrix because they are not fair anymore
forget it, there should only be ONE gpu blockchain and that's bitcoin (namecoin can stay through merged mining)
and the cpu blockchains will fight it out and only one will survive
member
Activity: 112
Merit: 11
Hillariously voracious
October 03, 2011, 10:55:58 AM
#35
Thank you for looking into this.  From what you're saying, it doesn't look like different build conflicting with each other, but rather an intentional fork.

Do you believe that another relaunch, this time with proper announcements and builds for everyone, would crack the nut against potential attackers?  Or is this proof that new chains are so subject to attack that it just isn't worth it?
Enough relaunches.
The chain is doing ok now and the attacker has got a vested interest in playing it easy if he doesn't want to loose the benefit of his loot. I would even expect that he keeps mining with enough power to protect the chain so as to make sure that his coins make it to the next stage.
It's like if this chain started with 30k coins premined. Irritating but not overly so. That is still way under the 7M+ in Tenebrix.

While I don't care much either way (all them fricks my lappie mined are gone in both cases) the situation of "explicit malicious agent has about 30 000" and situation of  "a dude who does alt-chains for fun and a slightly pie-esque laundry project has about 7 mils" is different in more ways than just the numbers.
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