When you move assets from one chain to another, for example Ethereum to Darwin, your assets are not actually transferred, but are blocked in the source chain, and then the matched assets in the target chain are issued.
Chain bridges are a sensitive single point of chain infrastructure due to the high complexity of the challenges associated with chain security.
The source of complexity, thanks to the explanation of the above cross-chain principle, it is not difficult for everyone to find the transfer of assets between multiple chains, especially the technical difficulties that Darwinia overcomes, heterogeneous chains (such as ethereum — BSc cross-chain similar isomorphic cross-chain difficulty is slightly lower,polkadot — ethereum cross-chain is a heterogeneous chain).
In the process of blocking and distributing mapped assets, combined with a complex combination of multiple Defi product chains, it includes many different chains and different contracts, the bottom of the chain layer, token contracts, Cross-chain component contracts (one for each chain) and the application layer contracts.As as long as one layer of the contract has a problem, the system will be compromised. The risk factors of BSc and Polygon are relatively low because it is directly isomorphic with ethereum, but when it is tested for a long time,other chains will have a higher risk.
The degree of decentralization, security and efficiency has always been an impossible triangle through which the blockchain industry wants to break through. In this incident, it was the centralized chain that froze the hacker’s assets with a higher centralized authority.The Darwinia team is analysing the breakthrough in no-trust solutions to further improve bridge safety and cross-chain performance .
The complexity and connectivity of Defi product chains bring high benefits to users , but they also intensify the safety test of chain infrastructure and chain bridges .Driven by income from the mining of the chain, the funds under the care of the pool of chain funds are constantly growing, which has become an
The key to securing the cross chain is the method blokowania.Na example , cross-chain Fund pool trust used by the attacked chain , based on the basic model of cross-chain shadow assets, the trust seems inevitable.
The most widespread method of custody is partially centralized and multi-layered trust-based custody, and researchers across chains are working to further reduce this approach by eliminating human involvement of third parties, such as the introduction of encryption algorithms and economic games to improve the security of locked assets. excellent prey for hackers.
The Darwinia team has always adhered to the safety first concept and is committed to providing a safer overall cross-chain bridge solution. After the accident, we also held discussions with the developers as soon as possible. Below we will share with the community Darwin’s thoughts on the modernisation of the chain bridge safety model.
The cross-chain protocol that got into an accident, the message delivery system was attacked, and double message insurance can further reduce the cross-chain security risk. Darwinia will focus on upgrading the cross-chain message delivery system (Darwinia Bridge base system) from business and product aspects.
Operation and maintenance:
1. Strengthen Runtime & Pallet security audit, as well as design and control of management bodies;
2. Do not believe in security practices and discuss the possible dangers arising from many assumptions;
3. Promoting greater cooperation in the field of safety in the industry and coordinating the modernisation of general safety solutions in chain Bridges;
4. Understanding the challenges and problems associated with the PR review and increasing the team’s mutual learning and reserve.
Since the post hackers began to return assets, which seems to relieve the community. But before the bloody lesson, cross-chain bridge safety challenge is a thorny road, Darwinia will continue to carry the load.
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