Cryptocurrency is a type of digital currency based on blockchain technology, and the blockchain cryptocurrency wallet is an application specifically designed to manage these assets. The cryptocurrency wallet provides basic financial functions such as creating wallet addresses, transferring cryptocurrency, and querying transaction history for each wallet address.

The wallet application creates one or more wallet addresses according to cryptographic principles, and each wallet address corresponds to one key pair: private key and public key. The public key is generated through certain mathematical operations based on the private key, and corresponds one-to-one with the private key. The public key is mainly used for external transactions, and each transaction must be signed with a private key to prove control over the assets in the relevant wallet address. The private key is the only credential that can prove control over digital assets.

For digital asset wallets, private keys are the most important. The generation and storage of private keys determine the security of assets. Therefore, in the usual sense, the security of digital assets is actually the security of private keys. The security of a wallet mainly depends on its ability to securely manage and use private keys.

At present, digital wallets are trying to shift from simple wallet services to digital asset ecosystem populations, hoping to gain greater market share and develop richer asset management services, mainly including asset management, asset trading, information aggregation, Dapp distribution, and other directions. Among them, asset management can be subdivided into mining value-added, wealth management value-added, asset collection management and other directions; Asset trading mainly includes decentralized digital asset exchange and fiat currency exchange; Information aggregation mainly refers to the aggregation of exchange information and project information; Dapp distribution is similar to a mini program store. Although different wallets have different entry points and development paths, each with its own strengths, the value-added functions of various wallets overlap slightly due to the gradual convergence of their long-term goals.

With the continuous development of the digital asset industry and the continuous improvement of the digital ecosystem, the scene function of digital wallets will become increasingly important. Its future development focuses on three aspects: first, ensuring the security, openness, and convenience of wallet services; The second is to build a digital asset management platform around the demand for asset appreciation, providing users with rich financial products and improving user conversion rates; The third is to connect digital assets with the real world, enrich the application scenarios of digital assets, and build a digital asset ecosystem.

Safety is fundamental. In terms of software technology, keyless encryption algorithms (standard algorithm white box schemes or design new white box encryption algorithms) and code obfuscation techniques can be used to prevent hackers from extracting core passwords and key information; Alternatively, encryption algorithms based on authentication factors such as password, identity, and biometrics can be used to encrypt and store the key; In terms of hardware, customized technical solutions for terminal devices can be developed based on TEE (Trusted Execution Environment) or SE (Security Environment) security modules, which is one of the important optional directions for ensuring the security of digital wallets.