eth-treekem

Ethereum TreeKEM javascript implementation. Based off of bifurcation/treekem.

Motivation

Existing encryption schemes like Signal work well for 1:1 chats but get expensive to maintain forward secrecy and Post-Compromise Security (PCS) for large group chats. TreeKEM as O(n) setup time but O(log(n)) group management operations and key refreshing. Efficient key refreshing is necessary to maintain PCS.

Getting Started

yarn
yarn test

References

• bifurcation/treekem
• Paper