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Anatoly Yakovenko
2019-02-11 15:28:27 -08:00
committed by Greg Fitzgerald
parent 3357cebcdb
commit 27f973c923
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book/src/gossip.md
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@ -83,6 +83,16 @@ older than `5 * GOSSIP_PULL_CRDS_TIMEOUT_MS`.
An eclipse attack is an attempt to take over the set of node connections with An eclipse attack is an attempt to take over the set of node connections with
adversarial endpoints. adversarial endpoints.
This is relevant to our implementation in the following ways.
* Pull messages select a random node from the network. An eclipse attack on
*pull* would require an attacker to influence the random selection in such a way
that only adversarial nodes are selected for pull.
* Push messages maintain an active set of nodes and select a random fanout for
every push message. An eclipse attack on *push* would influence the active set
selection, or the random fanout selection.
### Pull Message ### Pull Message
A node is selected as a pull target based on local time since last selection and A node is selected as a pull target based on local time since last selection and