Advanced Checkpointing released
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Nicely done! Grattis!
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[quote name=“erk” post=“26417” timestamp=“1377632071”]
Did you take the opportunity to fix the slow diff adjustment problem that gave the 51% attackers the time to do their attacks in the first place?
[/quote]This is not a hard fork but will give us protection for when we do hard forks :)
So we get ACP enabled real time and then tone down the 41.4% adjust which is way to wild to hit in each direction every time. We can now firmly get ourselves back on track.
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[quote name=“Bushstar” post=“26418” timestamp=“1377633912”]
[quote author=erk link=topic=3438.msg26417#msg26417 date=1377632071]
Did you take the opportunity to fix the slow diff adjustment problem that gave the 51% attackers the time to do their attacks in the first place?
[/quote]This is not a hard fork but will give us protection for when we do hard forks :)
So we get ACP enabled real time and then tone down the 41.4% adjust which is way to wild to hit in each direction every time. We can now firmly get ourselves back on track.
[/quote]Thanks so much for you effort bushstar.
Awesome job 8) -
[quote name=“erk” post=“26417” timestamp=“1377632071”]
Did you take the opportunity to fix the slow diff adjustment problem that gave the 51% attackers the time to do their attacks in the first place?
[/quote]That’s coming next.
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[quote name=“Bushstar” post=“26405” timestamp=“1377621353”]
… the checkpoint master node is deployed and maintained by the lead developer Peter Bushnell. Currently [color=red][b]no other person has access[/b][/color] to this system …
[/quote]Ugh … did a decentralized p2p digital currency just became centralized? Not sure how the (Bitcoin/Litecoin) community will react on this.
Bushstar, what happens if some crooks kidnap you and threaten to cut of your fingers if you don’t checkpoint [i]their[/i] blocks.
What happens if you lapse into a coma, die, loose your mind?
What happens if your system gets compromised?
Single point of failure -> not good.
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Well done! :)
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[quote name=“Radacoin” post=“26434” timestamp=“1377641834”]
[quote author=Bushstar link=topic=3438.msg26405#msg26405 date=1377621353]
… the checkpoint master node is deployed and maintained by the lead developer Peter Bushnell. Currently [color=red][b]no other person has access[/b][/color] to this system …
[/quote]Ugh … did a decentralized p2p digital currency just became centralized? Not sure how the (Bitcoin/Litecoin) community will react on this.
Bushstar, what happens if some crooks kidnap you and threaten to cut of your fingers if you don’t checkpoint [i]their[/i] blocks.
What happens if you lapse into a coma, die, loose your mind?
What happens if your system gets compromised?
Single point of failure -> not good.
[/quote]We’re working on this and we want your input.
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[quote name=“Radacoin” post=“26434” timestamp=“1377641834”]
[quote author=Bushstar link=topic=3438.msg26405#msg26405 date=1377621353]
… the checkpoint master node is deployed and maintained by the lead developer Peter Bushnell. Currently [color=red][b]no other person has access[/b][/color] to this system …
[/quote]Ugh … did a decentralized p2p digital currency just became centralized? Not sure how the (Bitcoin/Litecoin) community will react on this.
Bushstar, what happens if some crooks kidnap you and threaten to cut of your fingers if you don’t checkpoint [i]their[/i] blocks.
What happens if you lapse into a coma, die, loose your mind?
What happens if your system gets compromised?
Single point of failure -> not good.
[/quote]Bush answers some of those concerns right here:
http://bitcoinmagazine.com/6263/feathercoin-interview-with-peter-bushnell/
It’s a good starting point, you have some great questions.
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Congrats. :)
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How I reacted initially … [img]http://www.reactiongifs.com/wp-content/uploads/2012/11/not_having_it.gif[/img]
How I’m dealing with it now … [img]http://www.reactiongifs.com/wp-content/uploads/2013/02/just-hug-it-out.gif[/img]
How I hope it ends … [img]http://www.reactiongifs.com/wp-content/uploads/2013/08/the-brain-likes.gif[/img] -
Gangsters can kidnap me and chop my fingers off but I would not be able to checkpoint their blocks. That would be an unpleasant misunderstanding. The only control I have in the software is how deep the checkpoint is. I cannot remove existing checkpoints in the system.
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[quote name=“Bushstar” post=“26451” timestamp=“1377676845”]
Gangsters can kidnap me and chop my fingers off but I would not be able to checkpoint their blocks. That would be an unpleasant misunderstanding. The only control I have in the software is how deep the checkpoint is. I cannot remove existing checkpoints in the system.
[/quote]for remove it’s absolutely true.
for checkpointing other blocks, unfortunately that is true only with unmodified code in real network. You have the private key to checkpoint, this is what in fact can make a checkpoint. so a modified or isolated checkpointer can checkpoint any block [b]after[/b] the last checkpointed block. So it can not checkpoint some block in a chain(not seen because it’s isolated or ignore via code change) and then checkpoint another chain block orphaning the first chain without checkpoint (i’m not sure what would happen if checkpoint on both conficting chain would be send. )
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I am sure that this system could be abused if it fell into the wrong hands. Which is why I believe that we need to work on making this solution distributed.
I’ve posted this elsewhere and should post it here. You can enable and disable the checkpointing with enforcecheckpoint true and enforcecheckpoint false.
[quote]./feathercoind enforcecheckpoint false
./feathercoind getcheckpoint
{
“synccheckpoint” : “ac9376eb5161c3699ae8492bb23f17e02876d6f5b58dd9767ee137b49ea563c0”,
“height” : 68665,
“timestamp” : 1376803376,
“subscribemode” : “advisory”
}
./feathercoind enforcecheckpoint true
./feathercoind getcheckpoint
{
“synccheckpoint” : “ac9376eb5161c3699ae8492bb23f17e02876d6f5b58dd9767ee137b49ea563c0”,
“height” : 68665,
“timestamp” : 1376803376,
“subscribemode” : “enforce”
}[/quote] -
Also, kidnap and grievous bodily harm is illegal in the UK.
Feathercoin-qt, compiled from source under Linux, now on 4.3.1.
I agree with Bushstar, we have to work against the problems we have, kidnap isn’t one of them in the short term. Wheras, we are suffering from “cyber attacks” which is hitting our miners pockets, so ACP is a very positive development.
Well Done.
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Wholeheartedly agree with wrapper0feather.
Well done Bushstar.
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[quote name=“wrapper0feather” post=“26489” timestamp=“1377701628”]
Feathercoin-qt, compiled from source under Linux, now on 4.3.1.
[/quote]
What is the official version numbering? I’ve a Version 0.6.4.3, according to the .pro file
Where can I find the verision info in the sources?
I’ve created for Debian 7.0 and several OpenSuse distributions for those are not comfortable to compile the wallet on Linux themselves.
Debian: http://download.opensuse.org/repositories/home:/wellenreiter01/Debian_7.0/Packages.mirrorlist
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[quote name=“wrapper0feather” post=“26489” timestamp=“1377701628”]
Also, kidnap and grievous bodily harm is illegal in the UK.Feathercoin-qt, compiled from source under Linux, now on 4.3.1.
I agree with Bushstar, we have to work against the problems we have, kidnap isn’t one of them in the short term. Wheras, we are suffering from “cyber attacks” which is hitting our miners pockets, so ACP is a very positive development.
Well Done.
[/quote]Agree :)
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[quote name=“Bushstar” post=“26486” timestamp=“1377700458”]
I am sure that this system could be abused if it fell into the wrong hands. Which is why I believe that we need to work on making this solution distributed.I’ve posted this elsewhere and should post it here. You can enable and disable the checkpointing with enforcecheckpoint true and enforcecheckpoint false.
[quote]./feathercoind enforcecheckpoint false
./feathercoind getcheckpoint
{
“synccheckpoint” : “ac9376eb5161c3699ae8492bb23f17e02876d6f5b58dd9767ee137b49ea563c0”,
“height” : 68665,
“timestamp” : 1376803376,
“subscribemode” : “advisory”
}
./feathercoind enforcecheckpoint true
./feathercoind getcheckpoint
{
“synccheckpoint” : “ac9376eb5161c3699ae8492bb23f17e02876d6f5b58dd9767ee137b49ea563c0”,
“height” : 68665,
“timestamp” : 1376803376,
“subscribemode” : “enforce”
}[/quote]
[/quote][quote]“Will there be a console command in the future?”[/quote]
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It’s sassy and I like it.
[img]http://assets0.ordienetworks.com/images/GifGuide/dancing/tumblr_liuqmpbAG81qzb2ai.gif[/img]
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I didn’t realize how centralized this system would be…sorry I’ve been so busy to keep up with this development…
[u][i]“This is a form of centralisation as the checkpoint master node is deployed and maintained by the lead developer Peter Bushnell. Currently no other person has access to this system but it is planned to make the checkpointing system distributed over time. Distributing this system would allow several stakeholders like mining pools to have a vote on which block gets checkpointed. The controls in the system are very limited and only allow the developer to change the depth at which the blocks are checkpointed. This is an automated process and there is no facility to pick and choose which blocks get checkpointed.”[/i][/u]
Because of this I have to say I completely disagree with this model of protection. When Sunny King did this initially for PPC I was 100% against it, sounds the same.
Centralization of a cryptocurrency network in any form or fashion contradicts the original purpose for the cryprocurrency.
Allowing mining pools to vote based on their hash power is also flawed as it is just another form of centralization. This reminds me of the “Electoral Vote” which in my view is a BS system of determining results of an election. Same applies here.
