Introduction
Risk is the measure of the extent to which an entity is threatened by potential circumstances or events, and is typically a function of (i) the adverse impacts that would arise if the circumstance or event occurs, and (ii) the likelihood of occurrence. [National Institute of Standards and Technology]
This document provides a high-level systematic overview of the security risks in cross-chain protocols by identifying, classifying, and analyzing the elements of risk inherent in the design, implementation, and operation of such infrastructure. In addition, it proffers a set of risk controls and best practices to mitigate the likelihood and magnitude of various risks. While this document offers a general toolkit for reasoning about cross-chain protocols, it does not directly analyze individual protocols.
Crosschain Communication Protocols
Working definition: ...
Modalities of Cross-chain Communication: ...
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Asset Exchange
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Asset Transfer
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General Purpose Communication:
Security Challenges
TBA - note about the size scale and magnitude of hacks - challenges in systematically reasoning about the Security and risk in this space