Cross chain security Part 1 — A framework for understanding cross-chain systems

Designing cross chain apps was so much easier before

Breaking cross-chain protocols into layers

Base layer

Auth layer

Transport layer

Interface layer

Cross-chain security principles

Cross-chain read/write

Consensus overlap

Some quirks of cross-chain security

Obscured economic risk

Cross-chain slashing

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Cross chain security Part 2 — Safety, Liveness and Economic Security