Across is a cross-chain bridge that allows you to safely send assets from L2 to L1. Across prides itself on its two pillars of security and trust: UMA's Optimistic Oracle and tested smart contracts. The Optimistic Oracle is financially strong in theory, and UMA's history, strong audit reports and TVL attest to the strength of our contracts. If you're looking for a place to send assets quickly, instantly, and securely Across a chain, The Across Protocol is the best bridge.
What is the ACROSS protocol
Across is a bridging approach that uses bound Repeaters, single-sided liquidity pools, and UMA's Optimistic Oracle to enable decentralized instant transfers when they are put together. The cross-link bridge Across allows you to return assets to L1, ethereum's main network, in a cheap, secure and fast way.
When analyzing the security of The Across Protocol, two pillars are very clear: Optimistic Oracle and tested smart contracts proven by our audit, TVL in the Across Bridge, and our contracts that stand the test of time.
About the Optimistic Oracle
An important driver of Security Across is its use of UMA's Optimistic Oracle, which allows smart contracts to bring off-chain data to the chain. The prognosticator functions optimistically, meaning that it assumes answers are true unless they are disputed.True to UMA's decentralized vision, Optimistic Oracle solves the predictor problem by providing decentralization in the following ways:
1.Multiple robots in the system fact-check each other to ensure that the other robot notices that one of them is damaged. The dispute window also allows for human intervention.
2.Allow UMA token holders to vote to resolve disputes.UMA token holders are motivated to vote because if they are on the winning side, they receive a reward (more on that later). Finally, if the disputants are right, they get the proposer's margin, and vice versa. These deposits act as insurance for both parties.If you want to know more information about the Optimistic Oracle, please click UMA Docs.
Here are the key security features associated with Optimistic Oracle
1.There is no single administrator or key master.Anyone can request a price or challenge the answer. Using Optimistic Oracle means that no one or thing has a corrupting concentration of power over decision making.
2.Simple reward system that incentivizes correct voting.What if you're right? You will receive a $UMA inflation bonus generated by the agreement. Not right? No rewards, and maybe lots of FOMO.
3.Decentralized blocking switch.UMA voters can ignore or block requests that are clearly malicious or spam-like. In addition, spam-like requests designed to flood the system are unlikely in the first place because each DVM price request costs money.
4.Token holder incentives.When it comes to investing, token holders are incentivise to vote correctly, because if the system fails, so will their investments. In particular, very large UMA holders are particularly discouraged from dishonest behavior because if they disrupt the vote, they will lower the price of the token.
5.MA engineer Nick Pai summed up his trust in Across and its voting system, saying: "As an engineer, I would trust Across because the contract is simple and all the security is handled off-chain through the voters' human network. I was comforted by the simplicity of the on-chain code and the security of the financial incentives."To connect all the dots, Optimistic Oracle guarantees that no one can successfully hack the system because it will cost them far more money than they could possibly earn Optimistic Oracle is primarily driven by financial security. The code is simple because it automatically assumes that the DVM will return the correct price and that the human will solve the problem exactly. You are betting on UMA voters and as has been shown in the past, it is a very safe bet.
Smart contracts and auditing
Risk Labs, the team responsible for writing UMA protocol code, has a history of building high-quality products and demonstrating this through its strong audit reports. UMA protocols have a history of focusing on security, avoiding shortcuts and emphasizing decentralization. It has never been used. You can view OpenZeppelin's audit of the Across Protocol here. After UMA Audit -- L2 Bridges -- OpenZeppelin blog has completed its review.
Chase Coleman, our head of data and economics, summed up his faith in Across when he said, "It's very important for me as a user to only take risks that I accept and recognize. As a member of the team, I can see firsthand the way the engineering team prioritizes security, and this added insight helps me feel confident about using Across. I believe in Optimistic Oracle's financial assurance and AM confident in our team's engineering capabilities."
The code running Across does not have any complexity to hide vulnerabilities. Our smart contracts are secure, powerful and have no hidden features. This is further evidenced by the fact that more than $23 million of TVL is currently tied in Across the Bridge and that our contract has stood the test of time for millions of dollars Across the bridge.
In conclusion
Across prioritizes building something extremely secure, ensuring that its mechanisms lay the foundation for cheap, fast, and secure transport between chains. Optimistic Oracle provides theoretical and financial assurance, while our audit reports, TVL and the millions of dollars that have crossed the bridge to date demonstrate our previous security history and tested smart contracts. In summary, if you are looking for the best Across -- Bridge Layer 1 and Layer 2 assets to send Across chains quickly, instantly, and securely, Then Across Protocol is your choice. If you'd like to learn more about Across and stay up to date on our agreement, we encourage you to follow us on Twitter, read our documentation site Welcome to Across and join our Discord to participate in fair and impartial presentations.
Original link：深入了解across协议的安全性
Translator：cruickabby#4201