Le 03/05/2017 à 21:10, Natanael via bitcoin-dev a écrit :

Den 3 maj 2017 16:05 skrev "Erik Aronesty via bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org>:
> But as you've observed, the failure probabilities are rather high,
> especially if an active attacker targets nodes carrying less commonly
> available blocks. 

Wouldn't the solution be for nodes to use whatever mechanism an attacker uses to determine less commonly available blocks and choose to store a random percentage of them as well as their deterministic random set? 

IE X blocks end of chain (spv bootstrap), Y% deterministic random set,  Z% patch/fill set to deter attacks

Then he uses Sybil attacks to obscure what's actually rare and not.

Even proof of storage isn't enough,you need proof of INDEPENDENT storage

Yes

, which is essentially impossible

No, the bittorrent network is a good example

, as well as a way of determining which nodes are run by the same people (all the AWS nodes should essentially count as one).

No, this one is impossible and you don't care in fact, as long as the system forbids the nodes to position themselves where they like and can check that the nodes are behaving correctly, same people's nodes/IPs would then just do the job

And if you add to this a rewarding system that is not necessarily profitable then you eliminate the incentive for sybil attacking the network (like the "tip" proposal today) while motivating those that have the resources to run full nodes, then increasing independence




_______________________________________________
bitcoin-dev mailing list
bitcoin-dev@lists.linuxfoundation.org
https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev


-- 
Zcash wallets made simple: https://github.com/Ayms/zcash-wallets
Bitcoin wallets made simple: https://github.com/Ayms/bitcoin-wallets
Get the torrent dynamic blocklist: http://peersm.com/getblocklist
Check the 10 M passwords list: http://peersm.com/findmyass
Anti-spies and private torrents, dynamic blocklist: http://torrent-live.org
Peersm : http://www.peersm.com
torrent-live: https://github.com/Ayms/torrent-live
node-Tor : https://www.github.com/Ayms/node-Tor
GitHub : https://www.github.com/Ayms