SoK: Cross-Chain Bridging Architectural Design Flaws and Mitigations

arXiv:2403.00405v1 Announce Type: new
Abstract: Cross-chain bridges are solutions that enable interoperability between heterogeneous blockchains. In contrast to the underlying blockchains, the bridges often provide inferior security guarantees and have been targets of hacks causing damage in the range of 1.5 to 2 billion USD in 2022. The current state of bridge architectures is that they are ambiguous, and there is next to no notion of how different architectures and their components are related to different vulnerabilities. Throughout this study, …

arxiv blockchains bridge bridges cross-chain cs.cr current design enable flaws hacks interoperability mitigations security solutions state