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Report malice on sibling blocks from the same validator #196

Merged
merged 4 commits into from
Oct 22, 2019
Merged

Report malice on sibling blocks from the same validator #196

merged 4 commits into from
Oct 22, 2019

Commits on Oct 21, 2019

  1. Aura: Report malice on sibling blocks from the same validator 

    This was originally written by @vkomenda, then squashed for
easier rebasing on master. Cleanup of `received_step_hashes`
was moved to `verify_block_family`, since `on_prepare_block`
does not exist on master, and a unit test was added.
Original commit messages:

added the map of received block header hashes

do not return an error and remove older received block records

optimised older record removal

block hash comparison optimisation and the weak client ref fix

SIBLING_MALICE_DETECTION_PERIOD constant

review comments

using step numbers instead of block numbers
    @vkomenda @afck
    vkomenda authored and afck committed Oct 21, 2019
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  2. Add docs; use map_or.

    @afck
    afck committed Oct 21, 2019
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  3. Update step hash record comment. 

    Co-Authored-By: David <[email protected]>
    @afck @dvdplm
    afck and dvdplm committed Oct 21, 2019
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  4. Remove hash records after 2 rounds instead of 100 steps.

    @afck
    afck committed Oct 21, 2019
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