Digital person bound data asset safe box system and dual verification access method

Abstract

The invention discloses a digital person bound data asset safe box system, which realizes safe storage and real-time synchronization of cross-platform data assets through digital person-block chain dual verification and a virtual-real data mapping protocol. The innovation of the method comprises 1) a dynamic verification mechanism of biological characteristics and behavioral habits, 2) lossless data synchronization of virtual and entity safe boxes, and 3) an automatic cross-platform migration tool, is suitable for scenes of virtual currency access, game equipment migration, emergency data recovery and the like, and promotes data asset management to develop towards a high-safety and high-convenience direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of data security and metaverse interaction, and specifically relates to a data asset safe system bound to a digital human. Through the dual verification technologies of digital human identity binding and blockchain, it realizes the secure storage and real-time mapping of virtual and real-world data assets, and solves the problems of traditional data asset decentralized storage, single verification, and difficult cross-platform management. Background Art

[0002] The existing technologies have the following problems: The first is data islands: Traditional data storage solutions (such as patent CN119292466A "Multimodal-based Digital Human Interaction Method and System") do not achieve virtual and real-world data synchronization; The second is the singularity of verification: Existing safe systems (such as patent CN216076798U "Safe with Biometric Lock Mechanism") only rely on passwords or biometric features, and cannot cope with the risks brought by password leakage and biometric image spoofing, resulting in insufficient security; The third is management complexity: Cross-platform data assets need to be manually migrated (comparing patent CN117608410A "3D Virtual Digital Human Interaction System and Method" does not provide an automated mapping tool).

[0003] The present invention proposes a digital human-blockchain dual verification and virtual-real data mapping protocol to fill the technical gap in cross-platform secure management of data assets. Summary of the Invention

[0004] The technical solution of the present invention includes a system architecture, core modules, and storage processes.

[0005] The system architecture is shown in Figure 1 Now, the core components and data flow will be described.

[0006] The real-world part includes an entity safe and a home server. Entity safe: A physical device (such as a 6U cabinet or a home NAS) for storing users' sensitive data assets (such as encrypted files, private keys, virtual currency vouchers); Home server: As a local data hub, it supports multiple interfaces (USB / fiber / network) to connect to the entity safe and is responsible for data encryption, compression, and communication with the metaverse.

[0007] The metaverse part includes a digital human identity, a blockchain verification node, and a virtual safe. Digital human identity: A digital human role bound by the user, integrating biometric features (fingerprint, iris) and behavior habit (operation frequency, interaction mode) verification modules; Blockchain verification node: A distributed node network (such as Ethereum, IPFS) that executes smart contract logic (such as access permission verification, transaction limit control); Virtual safe: A digital safe in the metaverse for storing users' NFT assets, encrypted vouchers, and cross-platform data snapshots.

[0008] The virtual-real data stream includes an encryption mapping protocol and a real-time comparison mechanism. Encryption mapping protocol: Upstream (real → virtual): After encrypting the data of the physical safe by the home server, it is compressed by the LZ77 algorithm and transmitted to the virtual safe; Downstream (virtual → real): After the operation records of the virtual safe are verified by the blockchain, they are synchronized to the home server and decrypted and written into the physical safe. Real-time comparison mechanism: The hash values of the virtual and real safe data are verified every 5 minutes. If the difference > 1%, automatic repair or manual intervention is triggered.

[0009] The technical highlights in this architecture include decentralized verification: Blockchain nodes replace traditional central servers to prevent single-point attacks; Two-way secure channel: AES-256 encryption and quantum-resistant signature algorithms are used to ensure that the transmission link cannot be tampered with; Dynamic load balancing: The home server automatically switches the transmission protocol according to the network status (e.g., preferentially uses fiber direct connection when congested).

[0010] The core module of the present invention consists of three parts: digital human identity binding, blockchain verification, and virtual-real mapping protocol.

[0011] Digital human identity binding: Biometric database: Stores real human fingerprint, iris, and voiceprint data (encryption level AES-256); Behavior verification: Assists verification through the digital human's action habits (such as gesture frequency) (error rate < 0.01%).

[0012] Blockchain verification: Smart contract: Defines access rights and operation records (such as a daily deposit and withdrawal limit of 10,000 yuan); Distributed storage: Data is sharded and stored in the IPFS network to prevent single-point failures.

[0013] Virtual-real mapping protocol: Data synchronization: Compares the virtual and real safe data every 5 minutes (an alarm is triggered if the difference > 1%); Compressed transmission: Uses the LZ77 algorithm to compress data packets, improving the transmission efficiency by 60%.

[0014] The storage process is shown in Figure 2 , and the step-by-step interaction process is described as follows: The user initiates a request, and the operation types include data deposit (such as uploading NFT), withdrawal (such as withdrawing virtual currency), and migration (transferring equipment across platforms); The input method: The user triggers the operation through VR gestures, voice commands, or a traditional UI interface.

[0015] Digital human identity verification, biometric verification: The digital human calls local sensors (such as the iris scanning module of the VR headset) to obtain real-time biometric data and compares it with the pre-stored features; Behavior habit verification: Analyzes the user's operation mode (such as gesture trajectory, voice rhythm), and calculates the matching degree through the LSTM model (threshold > 99%).

[0016] Blockchain smart contract verification. Permission check: The contract verifies whether the user meets the access conditions (such as a daily withdrawal limit of 10,000 yuan); Data integrity verification: Verify the hash consistency of the target data through the Merkle tree to prevent man-in-the-middle attacks.

[0017] The virtual safe executes operations, data access and storage: For deposit operations, the virtual safe encrypts and slices the data and writes it to IPFS; for withdrawals, it aggregates and decrypts the slices; Status update: The operation records (time, type, hash value) are stored on the chain in real time to generate an immutable log.

[0018] The physical safe synchronizes, data compression and transmission: The virtual safe compresses (using the LZ77 algorithm) the updated data through the home server and transmits it to the physical device; Atomic write: The physical safe adopts a transaction mechanism to ensure the integrity of data writing (all successful or rollback).

[0019] The user confirms completion, multi-modal feedback: In the metaverse, the digital human gives a voice prompt "Operation successful"; in the real world, the LED indicator of the physical safe turns green; Voucher generation: Automatically generate a transaction voucher (such as an NFT format receipt) to support on-chain verification.

[0020] The technical highlights of this solution process are reflected in zero-trust verification: The dual verification mechanism (biological + behavioral) reduces the risk of impersonation to less than 1 / 10^6; Transactional synchronization: Adopt the two-phase commit protocol (2PC) to ensure strong consistency between virtual and real data; Quantum-resistant design: The blockchain nodes support post-quantum encryption algorithms (such as CRYSTALS-Kyber), increasing the difficulty of cracking.

[0021] The core innovation of the present invention is reflected in the dual verification mechanism ( Figure 3 ), the mapping of virtual and real data ( Figure 4 ), and cross-platform compatibility. Dual verification mechanism: Digital human biometric features + blockchain smart contract, increasing the cracking difficulty by 1000 times, and introducing behavioral verification technology to enhance dynamic security; Virtual and real data mapping: Support real-time synchronization between the virtual safe and physical devices (such as home servers), and automatically repair the differential data (repair success rate > 99.9%); Cross-platform compatibility: The virtual safe supports mainstream metaverse platforms (such as Decentraland, Roblox), and the physical safe is compatible with various storage media (hard disk / USB flash drive / SSD). Brief Description of the Drawings

[0022] Figure 1 : System architecture diagram (real world - metaverse data flow).

[0023] Figure 2 : Timing diagram of access operations (user - digital human - safe interaction).

[0024] Figure 3 : Dual-factor authentication flowchart (Digital human - Blockchain collaboration).

[0025] Figure 4 : Virtual-real mapping protocol state machine (Synchronization / Repair / Alarm). Detailed implementation

[0026] Example 1: Virtual currency deposit and withdrawal. Operation process: The user applies for withdrawing 5,000 yuan of virtual currency through the digital human; the blockchain verifies the identity of the digital human (biometric + behavior habit); the virtual safe executes the transfer and synchronizes it to the physical safe (time-consuming < 2 seconds); the physical safe generates a transaction voucher (in NFT format), and the user can exchange it offline.

[0027] Example 2: Cross-platform data migration. Technical details: The user migrates game equipment from platform A to platform B; the virtual safe automatically compresses the data packet (1GB → 400MB) and transmits it through IPFS; after platform B receives the data, the blockchain verifies the digital human's permission and completes the equipment import.

[0028] Example 3: Emergency data recovery. Scenario: The physical safe is damaged due to a fire. System response: The virtual safe detects the synchronization interruption and triggers an alarm; the user applies for data recovery through the digital human; after the blockchain verifies the identity, it writes the latest backup to a new device (recovery rate 100%).

[0029] Example 4: Virtual real estate transaction. User operation: Purchase virtual land (NFT) in the metaverse, and the funds need to be transferred from the physical bank account to the metaverse wallet; Process execution: The user initiates a request of "withdraw 50,000 yuan" through the digital human; after the digital human verifies the iris + gesture trajectory, the blockchain smart contract checks the remaining quota for the day (assuming a limit of 100,000 yuan); the virtual safe generates a cash withdrawal instruction, encrypts it and synchronizes it to the home server, triggering a bank API transfer; the physical safe records the transaction voucher, and after the metaverse wallet receives the funds, it updates the land ownership NFT.

[0030] The security advantages of the present invention are reflected in that even if a hacker breaks into the metaverse platform, due to the lack of biometrics + physical safe key, they cannot steal funds; if the blockchain nodes are attacked, the home server retains the last valid data snapshot to support emergency rollback.

Claims

1. A digital human-bound data asset safe system and a double verification access method, characterized in that It includes a digital human identity authentication module, a blockchain node and a virtual-reality mapping protocol, wherein: the digital human identity authentication module integrates dual verification of biometrics and behavioral habits, greatly reducing the error rate; the blockchain node defines access permissions through smart contracts and supports IPFS distributed storage; the virtual-reality mapping protocol realizes real-time data synchronization and difference repair between the virtual safe and the physical device.

2. The system according to claim 1, characterized in that The digital human identity authentication module supports dynamic combination verification of multimodal biometric features (fingerprint / iris / voiceprint).

3. The system according to claim 1, characterized in that The virtual-to-real mapping protocol adopts the LZ77 compression algorithm, which significantly improves the transmission efficiency.

4. The system according to claim 1, characterized in that The virtual safe supports access to mainstream Metaverse platforms, and the physical safe is compatible with a variety of storage media (hard disk / U disk / SSD).

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