深度剖析Merlin Chain：如何筑牢30亿TVL的安全防线

It is a well-known blue box and its development team, which supports the compatibility of many kinds of native bitcoin assets. From the market point of view and the early stage, it has high-quality data performance. It is a new agreement in bitcoin ecology. The blue box is the asset on it, and the blue box is marked with the agreement and the inscription. The total transaction volume of the floor is close to one. At present, the market value of the floor is marked with the agreement of the meta-universe version, which is output with the block output. At present, the transaction volume of new blocks added every day is about one, that is, the total floor price is The success of Blue Box Sum with a floor market value of around 100 million yuan has already condensed a good community consensus. Since its launch in early February this year, the main sum has rapidly exceeded 100 million dollars in a short period of less than one month. The joint cooperation projects include wallet service providers, pledge service providers, and multi-chain data integrated platform, an old bitcoin data service platform, etc. Bitcoin accounts for more than 100 million yuan, and stable currency assets each have about 100 million dollars. Congratulations on the pledge of other bitcoin ecological high-quality assets. In addition, we should also understand that it is not directly related to drawing an equal sign, for example, the current dazzling data assets are not directly related. In addition, because the asset balance that we manually check and add up is not included, the corresponding statistical caliber is about left and right. Next, we will analyze the prospect of the project from the technical scheme and ecological development of the account structure, asset type security, etc. The mainstream wallet address formats of Bitcoin are the same private key and they are calculated according to the elliptic curve algorithm. In addition, the mnemonic of bitcoin is the product of wallet, and the same mnemonic can derive multiple private keys to control multiple public key addresses and addresses with corresponding formats. For Ethereum, the public key and private key system of wallet is similar to that of bitcoin, but the difference is that Ethereum has chosen different coding hash functions, so it is the lightest to follow the existing scheme of Ethereum in terms of public and private key address design to ensure and realize compatibility, which is the most convenient for the habitual ecology. For users, the entry threshold is almost zero, but the challenge is how to relate the public and private key address mapping of Bitcoin. For this reason, we found the answer in the official document. Here, the address that can be calculated through the public key of Bitcoin is used to control the interaction on the chain with the smart contract account. For details, please refer to the architecture diagram. I have to say that instead of directly using the address calculated by the public key of Bitcoin as the account, it is very brave and forward to add the smart account that realizes the agreement. The advantage of foresight is, of course, that the signature abstraction involved and the future functions can be rapidly upgraded and iterated. The disadvantage is that the most critical infrastructure, wallet and blockchain browser need to be re-optimized and adapted, and the ecological project side should also cooperate with the transformation. For users, there will be a high learning cost in concept understanding, and at the same time, some past usage habits should be slightly adjusted. The following are some records of the use experience. By default, the calculated address account abstract address interaction is used. Sometimes the abstract address is controlled by wallet authorization, which is called directly in the form of signature when the transaction is initiated. It is temporarily impossible to view and edit the content of the fee transaction here, and it is impossible to immediately confirm that the block browser can view the function called as the transaction initiator instead of our address. The function is that the parameters inside encapsulate the real interactive function. Because it is a wallet with built-in multi-chain support, although we only use the wallet, we will also calculate the associated address and the generated address here. Different, so it's easy to think that the bridge assets didn't arrive. Whether it's a homogeneous public chain or a heterogeneous public chain, as long as it involves the entry and exit of the primary assets, it can never be bypassed. The core issue is security. Let's look for some damn memories that can never be bypassed in the circle. The cross-border agreement was hacked and more than 100 million dollars were stolen. Fortunately, the hacker finally chose to return the funds for some reason. The cross-border agreement was hacked and lost about 10,000 pieces until the day of the month. The hand attacks in the opposite direction to recover the stolen funds from hackers. The multi-signing verifier system of the side chain management funds of the game was broken, and the loss exceeded US$ 100 million. The multi-signing system of the official bridge of the public chain, which was characterized by fragmentation, was broken, and the loss was about US$ 100 million. In the year of crying, there were not only crashes, bankruptcies and thunderstorms, but also many hacker attacks on the chain. We often say that if the whole ecology undertook hundreds of millions of funds, Our capital is often accompanied by a prosperous ecology, and it also means the sword of Damocles hidden in the dark forest. Understanding how the official bridge realizes the access path of the original assets will help us to further analyze the security of the assets. At present, only the emerging asset series tokens such as assets are temporarily not supported, and the unified receiving address in Bitcoin network is bridged by users, which is transferred to this address, that is, the single-sign address control, that is, there is no direct reference place for the multi-sign mechanism behind it. We speculate that the bridge asset module, which is probably the co-management scheme, is responsible for handling the casting and destruction of assets, and the contract is responsible for minting coins. The logic function is to pass in the collection address and amount of anti-double flowers. After authentication and verification, the process of casting and destroying bridge assets can be realized. We have not fully experienced the destruction function from the contract, and its internal logic is to deal with the bridge cost, but we have not found the specific code for transferring bridge assets into the black hole. It already contains and casts destruction code, so it may soon support the bridge of series assets. The data display of the official bridge into the page is very intimate. Users can clearly find the required address and the associated blockchain browser also provides accurate information. The only bad thing is that the blockchain browser may be tried and used after indexing the data and experiencing the official bridge. The whole transaction process is also very smooth and the cost is much cheaper than that of the official bridge. The official bridge is fixed and the dynamic cost is probably the above. It is worth noting that the bridge assets are used by themselves. After the deployed smart contract initiates the transaction winding, the assets can only be viewed on the official platform. It takes a certain period of time to confirm the security of inheriting Bitcoin in other places. official website, who was developed by the team based on the framework, summarized it as a sequencer to send the second-tier transaction data to the Bitcoin network through a decentralized Oracle. We learned that there are two types of architectures in the architecture by consulting the documents of Sum, and what we adopted is described as the combination here. This scheme is the Ethereum Chain. 比特币今日价格行情网_okx交易所app_永续合约_比特币怎么买卖交易_虚拟币交易所平台

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