Private key recovery technology in blockchain

Private key recovery technology in blockchain

Private key recovery system:

System overview: The system consists of at least one processor, memory module and software module, which is used to generate and recover the original private key associated with the blockchain asset storage location.

User interaction: The user provides supplementary recovery information through a computing device, from which the system derives a non-reversible recovery seed and stores it in association with the original private key.

Recovery information type:

Multiple recovery information: Supplementary recovery information may include user-specified identifiers, passwords, answers to security questions, biometric information, etc.

Security enhancement: The system may encrypt or hash the recovery information using a cryptographic hash function (such as PBKDF2, Argon2) to enhance security.

Private key recovery method:

Password-based method: The user recovers the private key by providing the same password, and the system regenerates the private key through a hash function and a key derivation function.

Known information-based method: The user recovers the private key using the answer to the security question provided during account setup.

Notification-based method: The system sends a recovery notification via email or SMS, and the user recovers the private key according to the instructions in the notification.

U2F device-based method: Use a universal second factor (U2F) authentication device to store and recover private keys, providing physical security protection.

Private key storage and encryption:

Encrypted storage: The original private key and recovery seed may be stored in blockchain transactions, central databases, or user devices through encryption technology (such as symmetric encryption algorithms, asymmetric encryption algorithms).

Relational storage: Private keys and recovery seeds are stored in a relational manner with supplementary recovery information for quick retrieval and verification.

User interface and experience:

Graphical user interface (GUI): The system provides a user-friendly interface to guide users through processes such as account settings and private key recovery.

Interactive control: The interface includes interactive elements such as text fields, buttons, and drop-down menus to simplify user operations.

Application scenarios:

Blockchain wallet: Private key recovery technology is applicable to blockchain wallet applications, helping users to securely manage private keys and access blockchain assets.

Distributed ledger system: The technology is also applicable to other distributed ledger systems to improve the security and ease of use of the system.

Technical and security advantages:

Non-reversible recovery seed: Use non-reversible functions to generate recovery seeds to ensure that private keys cannot be directly recovered through recovery seeds, enhancing security.

Multi-factor authentication: Combine U2F devices and other authentication methods to achieve multi-factor authentication and improve account security.

What is the core technology?

Core technology: The core technology is about private key recovery technology in distributed ledger systems (such as blockchains). Specifically, it involves deriving non-reversible recovery seeds through supplementary recovery information provided by users, and storing them in association with the original private key so that the ability to access blockchain assets can be restored when the user loses the private key.

What types of recovery information are mentioned?

Recovery information type: Multiple types of recovery information are mentioned, including but not limited to user-specified identifiers (such as usernames), passwords, answers to security questions, biometric information (such as fingerprint scans), and subscription information (such as user information obtained through third-party services).

What private key recovery methods are described?

Private key recovery methods: Four main private key recovery methods are described: password-based methods, known information-based methods, notification-based methods, and U2F device-based methods. Each method provides a flexible private key recovery solution for different user scenarios and needs.

What is a non-reversible recovery seed and what role does it play in private key recovery?

Non-reversible recovery seed: A non-reversible recovery seed is derived from the recovery information provided by the user through a non-reversible function (such as a cryptographic hash function). It plays a key role in private key recovery because the original private key cannot be directly recovered from the recovery seed, thereby enhancing the security of the private key. The recovery seed is stored in a relationship with the original private key so that the private key can be regenerated through a specific process when needed.

What role does the U2F device play in private key recovery?

U2F device role: The U2F (Universal Second Factor) device plays a physical security protection role in private key recovery. Users enhance the security of the private key recovery process by connecting the U2F device to a computing device and using its internally stored private key to decrypt the stored recovery seed or perform other security operations. The U2F device provides a secure authentication method independent of the computing device.

What are the characteristics of the user interface design of?

User interface characteristics: The user interface design of focuses on user friendliness and ease of use. By providing a graphical user interface (GUI), the system can guide users through processes such as account setup and private key recovery. The interface includes interactive elements such as text fields, buttons, and drop-down menus, allowing users to operate intuitively and conveniently. In addition, the interface also provides clear instructions and prompts to help users understand the purpose and requirements of each step.

What is the significance of technology to blockchain wallet applications?

Significance to blockchain wallet applications: Technology is of great significance to blockchain wallet applications. It provides a safe and reliable private key recovery solution to help users solve the problem of private key loss or forgetting, thereby protecting the security of users' blockchain assets. In addition, this technology also improves the ease of use of blockchain wallet applications, lowers the user's usage threshold, and helps promote the popularization and application of blockchain technology.