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First easy step towards ">50%" protection
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Topic: First easy step towards ">50%" protection (Read 2042 times)
[Tycho]
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First easy step towards ">50%" protection
June 10, 2011, 11:21:31 PM
Last edit: June 11, 2011, 12:50:33 AM by [Tycho]
#1
Miner authors can implement simple detection routine that will stop mining if pool jumps back for more than a 5 blocks (checking by the hash of previous block).
This will make ">50%" attack much more difficult to accomplish.
There is also another vulnerability to cover - the block holding, this may me the next task for miners.
By doing this, at least all honest miners can be sure that their pool is not trying to make a fork.
Overtaking the pools or pool owners to disrupt the blockchain will be useless if the protection will be implemented in the miner software.
Welcome to my bitcoin mining pool:
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- Both payment schemes (including PPS), instant payout, no invalid blocks !
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shoula1
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Re: First easy step towards ">50%" protection
June 11, 2011, 12:17:27 AM
#2
good idea
Gavin Andresen
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Re: First easy step towards ">50%" protection
June 11, 2011, 01:06:38 AM
#3
This would be like a 6-blocks-back block chain lock-in. Maybe not a bad idea at this point (unlike the early days when legitimate users might throw lots of new hashing power at the network or there might have been network splits because there were so few nodes).
I think there would have to be an override, in case there WAS an hour or two or three network split.
Or maybe some attempt to detect double-spends (e.g. more-than-5-block-split OK if all transactions are valid on both chains).
How often do you get the chance to work on a potentially world-changing project?
rezin777
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Re: First easy step towards ">50%" protection
June 11, 2011, 01:13:03 AM
#4
This is interesting. Every miner would have be a node if I understand correctly.
[Tycho]
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Re: First easy step towards ">50%" protection
June 11, 2011, 01:14:52 AM
#5
Quote from: rezin777 on June 11, 2011, 01:13:03 AM
This is interesting. Every miner would have be a node if I understand correctly.
No, it's much more simple. You don't have to be a node to count five hashes back.
Welcome to my bitcoin mining pool:
https://deepbit.net
- Both payment schemes (including PPS), instant payout, no invalid blocks !
ICBIT Trading platform
: USD/BTC futures trading, Bitcoin difficulty futures (
NEW!
). Third year in bitcoin business.
grue
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Re: First easy step towards ">50%" protection
June 11, 2011, 01:25:04 AM
#6
what about this?
https://forum.bitcoin.org/index.php?topic=9137
It is pitch black. You are likely to be eaten by a grue.
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[Tycho]
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Re: First easy step towards ">50%" protection
June 11, 2011, 06:17:06 PM
#7
Quote from: grue on June 11, 2011, 01:25:04 AM
what about this?
https://forum.bitcoin.org/index.php?topic=9137
For implementing this, you'll need to convince all the pool's owners to replace their software. And it will not stop others from creating "classic" pools.
My solution is compatible with all existing pools and doesn't requres pool author's cooperation.
Welcome to my bitcoin mining pool:
https://deepbit.net
- Both payment schemes (including PPS), instant payout, no invalid blocks !
ICBIT Trading platform
: USD/BTC futures trading, Bitcoin difficulty futures (
NEW!
). Third year in bitcoin business.
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