Vitalik's ideal encryption Wallet: Achieve cross-L2 transaction experience, account privacy security, become a data Wallet..

Ethereum co-founder Vitalik Buterin published an article "What I Want to See in Wallet" yesterday (3), explaining the key features that an ideal Wallet should have, including a smooth transaction experience across L2, default privacy protection, enhanced account security, and protection from fraud. (Synopsis: Vitalik rarely criticizes the Ministry of Government Efficiency (DOGE): Focusing on small money while ignoring large-scale spending waste) (Background added: What is Vitalik's proposed "exit test"? How to evaluate the decentralization and security of a project) Wallet is our entry point into the on-chain world and is our core tool for interacting with the Block chain. Ethereum co-founder Vitalik Buterin released his latest article "What I Want to See in Wallet" yesterday (3), which delves into the key features of an ideal Wallet, including: a smooth transaction experience across L2, improved account security, protection from fraud and external threats, enhanced privacy protection, and features such as safe linking. However, Vitalik admits that this is not a complete list, and that it focuses on security and privacy. The following is a summary of the highlights of the movement area. Vitalik's Wallet Wish List Cross-L2 Trading Experience Vitalik proposes Wallet's built-in cross-L2 sending capabilities and the concept of chain-specific Address formats and payment requests, such as address@optimism.eth. When someone (or some application) gives an address in this format, we should be able to paste it into the "to" field of Wallet, click "send", and Wallet can automatically handle the send in any way. For a good user experience, Vitalik said Wallet needs to seriously consider which on-chains user assets are stored on by default to maximize security and ease of transfer. In addition, when it comes to paying for gas, Wallet should support users to pay for gas through other on-chains that have ETH when sending transactions on L2 without ETH. Vitalik emphasized that Wallet should protect users from both developer hacks or malicious actions, as well as users' own mistakes. He proposed a solution that uses social recovery and Multi-signatureWallet, combined with hierarchical permission control. He explains: A user's account has two layers of keys: the master key and N guardians (e.g. N = 5, which could be multiple devices for an institution or individual). The master key can perform low-value and non-financial operations. Most Guardian authorizations need to be used in one of two cases: (i) high-value operations, such as transferring all funds in an account, or (ii) changing the Master Secret Key or any Guardian. If needed, you can also set a time lock for latency to perform high-value operations for the main Secret Key to further improve security. Implementing privacy by default Vitalik believes it's time to take Ethereum's privacy more seriously. As ZK-SNARK technology advances, backdoor-free privacy technologies like Privacy Pools mature, and infrastructure such as Waku and ERC-4337 memory pools become more stable, privacy technologies are ready for wider adoption. However, current shielded transactions on Ethereum require users to download specialized privacy wallets (such as Railway or Umbra), which inconveniences users and reduces the popularity of shielded transactions. Therefore, Vitalik proposed that privacy features should be integrated directly into Wallet in the following ways: Private balance: Wallet can deposit some assets into the privacy pool, and users will prioritize withdrawing funds from the privacy pool when making transfers. Hidden Address: When receiving funds, Wallet automatically generates a hidden address to improve privacy. In addition, Vitalik said that Wallet can automatically generate a new address for each application that users participate in (such as the Decentralized Finance protocol), and the funds are deposited into the application from the privacy pool, and directly returned to the privacy pool when withdrawal, ensuring that the user's activities between different applications cannot be tracked. Vitalik said that effective privacy solutions create users' demand for storing off-chain data, and pointed out that Wallet needs to transform from a simple "Secret Key management tool" to a comprehensive personal data storage and management tool, which not only ensures the security of on-chain assets, but also needs to solve the problem of access and leakage prevention of users' private data. Vitalik said there is a need to develop more secure Decentralization hosting solutions, such as using M-of-N Sharding technology, which allows N trusted guardians to jointly manage data access. A list of Wallet wishes proposed by other Vitaliks, summarized below: New Users and Built-in Wallet: Discusses simple options for new users when signing up for the first time, and how Wallet integrated into the app is inevitable to drop the entry barrier for users. Protecting users from scams: The importance of improving Wallet's fight against scams, fraud, and other external threats was raised, noting that existing countermeasures are still fairly primitive. Secure Chain Access: Discusses how Wallet protects users from potential threats from RPC providers through standardized light client and private information retrieval (PIR) technologies. Dapp Security: Points out that Dapps are often the weakest link in user security, and proposes ways to improve security by versioning content in the Block chain and creating a more secure user interface. Ideal Keystore Wallet: Describes three solutions for changing the account verification configuration in a cross-L2 context, including replayed updates, keystores on L1, and keystores on L2. Looking to the future Looking ahead, Vitalik explores possible deeper revolutions in how we interact, including: AI: This could lead us to move from a click-and-type model to a "say what you want to do, and the robot will figure it out for us." Brain-computer interfaces: There are both "gentle" methods like eye tracking and more direct and even invasive techniques (see: First Neuralink patient of the year) Proactive defense client: The Brave browser proactively protects users from ads, trackers, and many other undesirable objects. Many browsers, plugins, and encryptionWallet actively protect users from various security and privacy threats. Vitalik is optimistic that these types of "active guardians" will only get stronger over the next decade. Vitalik elaborated on the potential to combine these three trends, which he believes will revolutionize our understanding of interface design. Through natural language input, eye tracking, and even a more direct brain-computer interface (BCI) in the future, as well as in-depth knowledge of user history (such as SMS logs, provided that all data is only processed locally), "Wallet" can more intuitively understand user intent. AI can translate these intentions into concrete "action plans," a series of on-chain and off-chain actions to fulfill user needs. As a result, the need for third-party user interfaces will be greatly reduced. If users need to interact with third-party apps or other users, AI should start with the user's interests in mind, detect potential risks in advance, and provide solutions to suggest. Ideally, Vitalik adds, these AIs should be developed by different teams, forming a diverse open ecosystem that caters to different preferences...