CN116015874A - A blockchain-based user privacy anti-theft system - Google Patents

Abstract

The invention relates to the technical field of blockchain technology, in particular to a blockchain-based user privacy anti-theft system, which adopts multiple encryption such as quantum encryption and the like to improve the user privacy anti-theft capability on a blockchain; the system comprises an input module, a password and biological characteristic identification module, a digital tag module, a data length grading module, a quantum encryption module, a storage module and a communication module, wherein the input module is used for inputting data of a blockchain to be uploaded by a user, the password and biological characteristic identification module encrypts the data head, the digital tag module adds a unique digital tag at the tail of the data, the length grading module compresses or fills the data to a standard length, the quantum encryption module encrypts the data of the standard length into encrypted data of the same length, the storage module stores a secret key and sends the encrypted data to the communication module, the communication module uploads the encrypted data to a node of the blockchain, the communication module downloads the encrypted data to the storage module, and the storage module decrypts the data by combining the secret key.

Description

A blockchain-based user privacy anti-theft system

technical field

The invention relates to the technical field of block chain technology, in particular to a block chain-based user privacy anti-theft system.

Background technique

In order to improve the security of data communication in the prior art, it is proposed to use quantum encryption technology to encrypt data, the receiver receives the data length and quantum key, and the receiver receives the encrypted data through the server and then combines the data length and quantum key to crack the data, for example Application number "CN202210826649.3" proposes a method and system for secure data transmission based on quantum encryption.

Blockchain is a new application mode of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Any operation performed by a user on any node of the blockchain will be executed on all nodes of the blockchain. Generate the same operation record, this record cannot be tampered with, based on the characteristics of the blockchain, the information stored by the user on the blockchain node can be viewed by multiple users, and if the server as the blockchain node is stolen or Destruction will cause the leakage of user privacy information, so the privacy of users stored on the blockchain needs to be encrypted to prevent theft. Traditional encryption methods include password encryption and fingerprints, etc., but traditional encryption methods are easily cracked by special algorithms, resulting in user privacy. Therefore, combined with multiple encryption technologies such as quantum encryption, a blockchain-based user privacy anti-theft system is proposed to prevent user privacy from being stolen.

Contents of the invention

In order to solve the above technical problems, the present invention provides a block chain-based user privacy anti-theft system with high practicability that adopts multiple encryptions such as quantum encryption to improve the user privacy anti-theft capability on the block chain.

A block chain-based user privacy anti-theft system of the present invention includes an input module, a password and biometric identification module, a digital label module, a data length classification module, a quantum encryption module, a storage module, and a communication module. The input module is used for The user enters the data to be uploaded to the blockchain, the password and biometric module encrypts the data head, the digital label module adds a unique digital label at the end of the data, the length classification module compresses or fills the data to a standard length, and the quantum encryption module will The standard length data is encrypted into encrypted data of the same length, the storage module stores the secret key and sends the encrypted data to the communication module, the communication module uploads the encrypted data to the nodes of the blockchain, the communication module downloads the encrypted data and sends it to the storage module, and the storage module Combining the secret key to decrypt the data; multiple encryptions such as password and biological encryption, adding digital tags, grading the data through compression or filling, quantum encryption, etc., even if the user's encrypted data is stolen, it cannot be cracked, making the user's privacy Information cannot be stolen, improving user privacy and anti-theft capabilities on the blockchain, with high practicability.

Preferably, the password and the biometric identification module include a password module and a biometric module, and the biometric module includes one or more of a fingerprint module, a voiceprint module and a face recognition module, and the password and the biometric identification module will The encrypted information is added to the data header, encrypted and the secret key A is produced, and the secret key A is sent to the storage module; the data is encrypted at the first level through the above settings, and the data is signed at the same time.

Preferably, the digital label module runs the blockchain consensus digital label function to generate a unique digital label and adds it at the end of the data, and at the same time generates the secret key b, which is sent to the storage module, and the secret key b is combined with the secret key A to generate The secret key B stores the secret key B; through the above settings, the data is encrypted twice, and at the same time, the blockchain tag is added to the data to form a blockchain consensus.

Preferably, the data length grading module will set multiple data length levels, fill and encrypt data less than 0.5 times the standard length to 1 times the standard, compress and encrypt data less than 1.5 times the standard length to 1 times the standard, and fill and encrypt data exceeding 1.5 times the standard length To double the standard, generate the secret key c at the same time, send the secret key c to the storage module, combine the secret key c and the secret key B to generate the secret key C, and store the secret key C; through the above settings, the data is encrypted at three levels, with the same length The encrypted data can produce confusion and confusion, and improve the confidentiality of private information.

Preferably, the quantum encryption module encrypts the data quantum into encrypted data of the same length, and generates a quantum secret key d at the same time, and the secret key d is sent to the storage module, and the secret key d is combined with the secret key C to generate the secret key D, and the secret key D is stored; Through the above settings, the fourth-level quantum encryption is performed on the data without changing the length of the encrypted data, so as to improve the anti-theft effect of the data.

Preferably, the encryption method of the quantum encryption module can adopt one or both of the encryption method and the BB84 protocol proposed in the patent application number "CN202210826649.3", a secure data transmission method based on quantum encryption and the system; it belongs to the prior art , good practicability.

Preferably, the communication module sends the multi-level encrypted data ciphertext to the blockchain node, and the communication module downloads the encrypted data ciphertext from the blockchain node.

Preferably, the communication module downloads the ciphertext and sends it to the storage module, and the storage module combines the secret key D and the ciphertext to decrypt the ciphertext into plaintext; through the above settings, the data is downloaded from the blockchain node and decrypted.

Compared with the prior art, the present invention has the beneficial effects of multiple encryptions such as cipher and biological encryption, adding digital tags, compressing or filling data into grades, quantum encryption, etc., even if the encrypted data of the user is stolen, it cannot Being cracked, the user's private information cannot be stolen, and the user's privacy anti-theft ability on the blockchain is improved, with high practicability.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of password and biometric identification module of the present invention;

Fig. 3 is the schematic diagram of digital label module;

Fig. 4 is a schematic diagram of a data length classification module;

Fig. 5 is a schematic diagram of the quantum encryption module of the present invention;

Fig. 6 is the schematic diagram of downloading and decryption mode;

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

Example 1

As shown in Figures 1 to 6, a blockchain-based user privacy anti-theft system includes an input module, a password and biometric identification module, a digital label module, a data length classification module, a quantum encryption module, a storage module and a communication module. module, the input module is used for the user to input the data to be uploaded to the blockchain, the password and biometric identification module encrypts the data head, the digital label module adds a unique digital label at the end of the data, and the length classification module compresses or fills the data to the standard Length, the quantum encryption module encrypts standard length data into encrypted data of the same length, the storage module stores the secret key and sends the encrypted data to the communication module, the communication module uploads the encrypted data to the nodes of the blockchain, and the communication module downloads the encrypted data and sends it For the storage module, the storage module combines the secret key to decrypt data; the password and biometric identification module includes a password module and a biometric module, and the biometric module includes one or more of a fingerprint module, a voiceprint module and a face recognition module The password and biometric identification module adds the encrypted information to the data header, encrypts and produces the secret key A, and the secret key A is sent to the storage module; the digital label module runs the digital label function of the blockchain consensus to generate a unique digital label And add it at the end of the data, generate the secret key b at the same time, send the secret key b to the storage module, combine the secret key b with the secret key A to generate the secret key B, and store the secret key B; the communication module sends the multi-level encrypted data ciphertext To the blockchain node, the communication module downloads the encrypted data ciphertext from the blockchain node; the communication module downloads the ciphertext and sends it to the storage module, and the storage module combines the secret key D and the ciphertext to decrypt the ciphertext into plaintext; Bio-encryption simultaneously signs the data, adds digital tags to the data, adds blockchain tags and forms a blockchain consensus, grades the data by compression or filling, quantum encryption and other multiple encryptions, even if the user's encrypted data is stolen, It cannot be cracked, so that the user's private information cannot be stolen, and the user's privacy anti-theft ability on the blockchain is improved. The communication module downloads data from the blockchain node and sends it to the storage module for decryption.

Example 2

As shown in Figure 1 to Figure 5, the data length classification module will set multiple data length levels, fill and encrypt data less than 0.5 times the standard length to 1 times the standard, compress and encrypt data less than 1.5 times the standard length to 1 times the standard, and more than 1.5 times the standard length Double the standard length data is filled and encrypted to 2 times the standard, and the secret key c is generated at the same time, and the secret key c is sent to the storage module. The secret key c and the secret key B are combined to generate the secret key C and store the secret key C; the quantum encryption module encrypts the data quantum Encrypted data of the same length, generate quantum secret key d at the same time, secret key d is sent to the storage module, secret key d and secret key C are combined to generate secret key D, and store secret key D; the encryption method of quantum encryption module can adopt the patent application number "CN202210826649.3" A secure data transmission method based on quantum encryption and one or both of the encryption method proposed in the system and the BB84 protocol; the encrypted data has the same length, which can generate confusion and increase the security of private information level of secrecy.

As shown in Figures 1 to 6, a block chain-based user privacy anti-theft system of the present invention, when it is working, first the user inputs the data to be uploaded to the block chain through the input module, password and biometric identification module Add the encrypted information to the data header, perform level 1 encryption and produce the secret key A, and send the secret key A to the storage module, and then the digital label module runs the blockchain consensus digital label function to generate a unique digital label and add it at the end of the data At the same time, the secret key b is generated, and the secret key b is sent to the storage module. The secret key b is combined with the secret key A to generate the secret key B, and the secret key B is stored. Then the data length classification module will set multiple data length levels, which will be less than 0.5 Data with double the standard length is filled and encrypted to 1 times the standard, data less than 1.5 times the standard length is compressed and encrypted to 1 times the standard, data exceeding 1.5 times the standard length is filled and encrypted to 2 times the standard, and a secret key c is generated at the same time, and the secret key c is sent to the storage module , the secret key c is combined with the secret key B to generate the secret key C, store the secret key C, the quantum encryption module encrypts the data quantum into encrypted data of the same length, and generates the quantum secret key d at the same time, and sends the secret key d to the storage module, the secret key d is combined with the secret key C to generate the secret key D, and the secret key D is stored. Finally, the communication module downloads the ciphertext and sends it to the storage module. The storage module combines the secret key D and the ciphertext to decrypt the ciphertext into plaintext.

Main functions realized by the present invention are:

1. Multiple different ways of encryption, strong anti-theft ability;

2. Encrypt the data into standard length data;

3. Add digital identification to information data to avoid data tampering and have consensus.

A block chain-based user privacy anti-theft system of the present invention, a block chain-based user privacy anti-theft system of the present invention includes quantum encryption, block chain technology, password and biometric identification modules, storage modules, The communication module and the input module are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without creative work by the technicians in the field.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (8)

1. A block chain-based user privacy anti-theft system, characterized in that it includes an input module, a password and a biometric identification module, a digital label module, a data length classification module, a quantum encryption module, a storage module and a communication module. The module is used for the user to input the data to be uploaded to the blockchain, the password and biometric identification module encrypts the data head, the digital label module adds a unique digital label at the end of the data, and the length classification module compresses or fills the data to a standard length. The encryption module encrypts the standard length data into encrypted data of the same length, the storage module stores the secret key and sends the encrypted data to the communication module, the communication module uploads the encrypted data to the nodes of the blockchain, and the communication module downloads the encrypted data and sends it to the storage module , the storage module combines the secret key to decrypt the data. 2. A kind of user privacy anti-theft system based on block chain as claimed in claim 1, is characterized in that, password and biological feature identification module comprise password module and biometric feature module, biometric feature module comprises fingerprint module, One or more of the voiceprint module and the face recognition module, and the password and biometric identification module adds encrypted information to the data header, encrypts and generates a secret key A, and sends the secret key A to the storage module. 3. A block chain-based user privacy anti-theft system according to claim 2, wherein the digital tag module runs the digital tag function of the block chain consensus to generate a unique digital tag and adds it to the end of the data, At the same time, the secret key b is generated, the secret key b is sent to the storage module, the secret key b is combined with the secret key A to generate the secret key B, and the secret key B is stored. 4. A blockchain-based user privacy anti-theft system as claimed in claim 3, wherein the data length grading module will set multiple data length levels, and fill and encrypt data less than 0.5 times the standard length to 1 time Standard, the data less than 1.5 times the standard length is compressed and encrypted to 1 times the standard, and the data exceeding 1.5 times the standard length is filled and encrypted to 2 times the standard, and the secret key c is generated at the same time, and the secret key c is sent to the storage module, and the secret key c is combined with the secret key B Generate the secret key C and store the secret key C. 5. A block chain-based user privacy anti-theft system as claimed in claim 4, wherein the quantum encryption module encrypts the data quantum into encrypted data of the same length, and simultaneously generates quantum secret key d, secret key d Send to the storage module, the secret key d is combined with the secret key C to generate the secret key D, and the secret key D is stored. 6. A block chain-based user privacy anti-theft system as claimed in claim 5, characterized in that the encryption method of the quantum encryption module can adopt the patent application number "CN202210826649.3" to secure data transmission based on quantum encryption One or both of the encryption method and the BB84 protocol proposed in the method and system. 7. A block chain-based user privacy anti-theft system as claimed in claim 1 or 5, wherein the communication module sends the multi-level encrypted data ciphertext to the block chain node, and the communication module transmits the data from the block Chain nodes download encrypted data ciphertext. 8. A block chain-based user privacy anti-theft system according to claim 1 or 7, wherein the communication module downloads the ciphertext and sends it to the storage module, and the storage module combines the secret key D and the ciphertext to store the ciphertext The text is decrypted into plaintext.

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