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This repository has been archived by the owner on Nov 10, 2020. It is now read-only.
one solution would be to always only try one sibling out-neighbor, which might not be such a bad idea, given that if ddcd did its work well, backtracks should normally be quite rare.
Discovering common creditor ancestors is actually a feature if you want to balance those creditors against each other. Still worth mentioning this security consideration in the whitepaper or in the FAQ, though.
michielbdejong
changed the title
new security consideration: ddcd-dfs might expose common creditor ancestors
new security consideration: PROBES might expose common creditor ancestors
Sep 13, 2018
if DFS backtracks, and a forward or cross edge exists, some nodes may find out if some of their in-neighbors (i.e., creditors) have a common ancestor.
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