hetecon
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Viarium.io - DECENTRALIZED VR WORLD
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December 01, 2015, 04:29:47 PM |
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So this will be able to have a fix but requires convincing of the largest pools.
Yes. Miners are able to immediately require higher fees for these transactions or to ignore these transactions when they create blocks. To me this means it is not a problem with bitcoin concept, but a problem with certain versions of the wallet/mining wallet systems. |
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mezzomix
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December 01, 2015, 05:45:31 PM |
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It's not limited to the miners. I operate several relay nodes and patched my nodes to reject those transactions before they are stored in the mempool. With this change my nodes no longer forward transactions with a high number of SIGOPS.
With a mining node I would not reject those transactions but require a high fee.
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hetecon
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December 01, 2015, 05:47:44 PM |
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It's not limited to the miners. I operate several relay nodes and patched my nodes to reject those transactions before they are stored in the mempool. With this change my nodes no longer forward transactions with a high number of SIGOPS.
With a mining node I would not reject those transactions but require a high fee.
Do you have a github commit for me to look at? |
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hetecon
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December 01, 2015, 06:35:32 PM |
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much simpler then expected :0 |
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mezzomix
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December 01, 2015, 10:18:59 PM |
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I use a hard coded limit but this pull request will be more flexible. |
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basil00
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December 02, 2015, 04:03:04 AM |
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This attack can be made more effective by exploiting this. That is, instead of a vanilla OP_RETURN you use the script: OP_RETURN OP_CHECKMULTISIG
This counts as a extra 20 sigOps. This bug is fixed in 0.12.0 (by making this script non-standard). |
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hetecon
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Viarium.io - DECENTRALIZED VR WORLD
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December 04, 2015, 06:19:51 AM |
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This attack can be made more effective by exploiting this. That is, instead of a vanilla OP_RETURN you use the script: OP_RETURN OP_CHECKMULTISIG
This counts as a extra 20 sigOps. This bug is fixed in 0.12.0 (by making this script non-standard). interesting thing to see here. i trying to get this script lang down lol |
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DuddlyDoRight
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December 16, 2015, 02:58:58 AM |
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Problem is fees are already arbritrary creating usability issues.. Add more add more problems..
Oh cool I just put my savings in to bitcoin!! Hey what happen to 0.005% of it or why does it get no confirmations.. No refunds wtf?
Bitcoin is suppose to be a currency not a quick-profit-scheme for people who buy the hardware or learn the internals..
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I have faith that one day this forum will get threads where people won't just repeat their previous posts or what others have already stated in the same thread. Also that people will stop acting like BTC is toy-money and start holding vendors accountable. Naive? Maybe.
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sidwaltdo
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December 17, 2015, 03:00:01 AM |
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WOW,The day bitcoin starts blacklisting will be the end.
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DuddlyDoRight
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December 20, 2015, 01:17:01 AM |
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WOW,The day bitcoin starts blacklisting will be the end.
Never blacklist. Just whitelist. I'm not sure why basic reputation scares people here so bad.. There is nothing built in to the block-chain that says a bank is a bank and again, BTC is a currency not a profit system.. |
I have faith that one day this forum will get threads where people won't just repeat their previous posts or what others have already stated in the same thread. Also that people will stop acting like BTC is toy-money and start holding vendors accountable. Naive? Maybe.
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amaclin (OP)
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December 20, 2015, 01:24:06 AM |
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oakpacific
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January 26, 2016, 10:25:29 PM |
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Isn't transaction selection already a NP-hard knapsack problem? What kind of a beast it will become if we throw....computational complexity itself into the mix? "Hmmm, let me estimate if I am gonna spend more time processing these transactions or more time doing the estimation..."  |
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BlockSense
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January 31, 2016, 01:27:25 PM |
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This attack can be made more effective by exploiting this. That is, instead of a vanilla OP_RETURN you use the script: OP_RETURN OP_CHECKMULTISIG
This counts as a extra 20 sigOps. This bug is fixed in 0.12.0 (by making this script non-standard). Will have a read of this. |
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