les, light: LES/2 protocol version #14970
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fjl
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Oct 24, 2017
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W00t - nice to see this merged - can't wait for 1.7.3 - any chance for a release before DevCon3? |
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No :) That would be far too dangerous :) |
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Yea - I think you are right - but perhaps I use a snapshot for once ;-) Would really love to see a faster light-client .. |
vincentserpoul
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This PR implements the new LES protocol version extensions: * new and more efficient Merkle proofs reply format (when replying to a multiple Merkle proofs request, we just send a single set of trie nodes containing all necessary nodes) * BBT (BloomBitsTrie) works similarly to the existing CHT and contains the bloombits search data to speed up log searches * GetTxStatusMsg returns the inclusion position or the pending/queued/unknown state of a transaction referenced by hash * an optional signature of new block data (number/hash/td) can be included in AnnounceMsg to provide an option for "very light clients" (mobile/embedded devices) to skip expensive Ethash check and accept multiple signatures of somewhat trusted servers (still a lot better than trusting a single server completely and retrieving everything through RPC). The new client mode is not implemented in this PR, just the protocol extension.
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This PR implements the new LES protocol version extensions:
Updated protocol documentation:
https://github.com/zsfelfoldi/go-ethereum/wiki/Light-Ethereum-Subprotocol-(LES)
https://github.com/zsfelfoldi/go-ethereum/wiki/BloomBits-Trie