CN113011982A - Asset side hiding method and system based on block chain and electronic equipment - Google Patents

Asset side hiding method and system based on block chain and electronic equipment Download PDF

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Publication number
CN113011982A
CN113011982A CN202110396402.8A CN202110396402A CN113011982A CN 113011982 A CN113011982 A CN 113011982A CN 202110396402 A CN202110396402 A CN 202110396402A CN 113011982 A CN113011982 A CN 113011982A
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China
Prior art keywords
asset
forwarding
key
owner
block chain
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Chinese (zh)
Inventor
郑子彬
罗少龙
袁妙
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Shenzhen Qianhai Mobile Technology Co ltd
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Shenzhen Qianhai Mobile Technology Co ltd
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Priority to CN202110396402.8A priority Critical patent/CN113011982A/en
Publication of CN113011982A publication Critical patent/CN113011982A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3821—Electronic credentials
    • G06Q20/38215—Use of certificates or encrypted proofs of transaction rights
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3825—Use of electronic signatures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Abstract

The invention discloses an asset side hiding method, an asset side hiding system and electronic equipment based on a block chain. The method combines the characteristics of the zero knowledge proof, the sources and the original addresses of the asset owner and the payee cannot be checked when the forwarder signs the signature, the zero knowledge proof can be verified after the signature so as to transfer the asset to the corresponding payee, and the privacy protection of the asset owner is improved. Meanwhile, pooling of the input original assets can be applied to common pooling and hiding of digital assets on various blockchains without being limited to a certain specific asset and quantity.

Description

Asset side hiding method and system based on block chain and electronic equipment
Technical Field
The invention relates to the technical field of asset transfer of block chains, in particular to an asset side hiding method and system based on a block chain and electronic equipment.
Background
The blockchain is a multi-party cooperation oriented technology and widely applied to scenes such as asset transfer, auction and the like, such as encrypted currency assets such as stable coins in a public chain, cross-border transfer in a alliance chain and the like. However, in the existing blockchain transfer system, it is difficult to protect the privacy of the asset owner, and the maintainer of the ledger can still check the roll-out party and the roll-in party recorded in the blockchain transaction, so that the privacy of the asset owner is damaged.
Disclosure of Invention
The invention provides an asset side hiding method and system based on a block chain and electronic equipment, and aims to solve the problem of insufficient privacy protection of existing block chain asset transfer.
According to the embodiment of the application, an asset side hiding method based on a block chain is provided, and comprises the following steps: step S1: an asset owner sends an original asset on a block chain, and an asset certification key and a hash value corresponding to the original asset are obtained; step S2: converting original assets into universal asset data based on the asset exchange rate, and storing the universal asset data into an asset pool; step S3: the asset owner selects the forwarder and a set amount of general asset data according to the stored asset certification key to generate a zero knowledge certification and a corresponding intelligent contract; step S4: the forwarding party signs the intelligent contract based on the forwarding key and sends the intelligent contract to the block chain; step S5: the blockchain verifies whether the property owner is valid or not based on the zero knowledge proof, if so, the step S6 is carried out, and if not, the step S7 is carried out; step S6: based on the intelligent contract, converting the corresponding amount of universal asset data into a preset token type, and sending the token type to a payee; and step S7: the transaction operation is terminated.
Preferably, the step S1 specifically includes: step S11: an asset owner sends an original asset on a block chain, and acquires an asset certification key and a hash value of the original asset based on a zero knowledge certification algorithm; and step S12: the asset attestation key and the hash value are stored persistently locally.
Preferably, the step S2 specifically includes: step S21: converting the sent original assets into universal asset data based on the asset exchange rate; and step S22: and storing the universal asset data and the corresponding hash value into the asset pool.
Preferably, the step S4 specifically includes: step S41: the forwarding party enters a signature interface of the intelligent contract based on the forwarding key; and step S42: and the forwarding party checks the zero knowledge proof of the asset owner and the quantity of the universal asset data to be forwarded, signs in a specified area, and sends the signed quantity to the block chain to finish forwarding confirmation.
Preferably, in step S3, the property owner inputs the address of the payee in the address interface of the intelligent contract.
The invention also provides a block chain-based asset hiding system, which comprises: the key generation unit is used for sending the original asset on the block chain by the asset owner to obtain an asset certification key and a hash value corresponding to the original asset; the asset pooling unit is used for converting the original assets into universal asset data based on the asset exchange rate and storing the universal asset data into an asset pool; the zero knowledge computing unit is used for selecting a forwarding party and a set amount of general asset data by an asset owner according to the stored asset certification key to generate a zero knowledge certification and a corresponding intelligent contract; the forwarding signing unit is used for signing the intelligent contract by the forwarding party based on the forwarding key and sending the intelligent contract to the block chain; a forwarding verification unit for verifying whether the asset owner is valid based on the zero knowledge proof by the blockchain; the asset sending unit is used for converting the corresponding amount of general asset data into a preset token type based on an intelligent contract and sending the token type to the payee when the effectiveness of all the assets is verified; and the transaction termination unit is used for terminating the transaction operation when the asset owner is verified to be valid.
Preferably, the key generation unit further includes: the key calculation unit is used for sending the original asset on the block chain by the asset owner and acquiring an asset certification key and a hash value of the original asset based on a zero knowledge certification algorithm; and the key storage unit is used for locally and persistently storing the asset certification key and the hash value.
Preferably, the forwarding signature unit further includes: the signature interface unit is used for enabling the forwarding party to enter a signature interface of the intelligent contract based on the forwarding key; and the signature filling unit is used for checking the zero knowledge proof of the asset owner and the quantity of the universal asset data to be forwarded by the forwarding party, signing in the specified area and sending the signed quantity to the block chain to finish forwarding confirmation.
The invention also provides an electronic device comprising a memory and a processor, the memory having stored therein a computer program arranged to execute the blockchain-based asset side hiding method of any one of the above when running; the processor is arranged to perform the blockchain-based asset side concealment method of any one of the above by means of the computer program.
The asset side hiding method, system and electronic equipment based on the block chain have the following beneficial effects:
the method comprises the steps that an asset owner lifts a transaction on a block chain, original assets are pooled, asset certification keys and hash values are obtained, meanwhile, zero knowledge certification and an intelligent contract are obtained based on a zero knowledge algorithm, a forwarding party verifies the zero knowledge certification on the block chain to trigger the intelligent contract after signing in a signing area of the intelligent contract, and the transfer of the assets is completed. The method combines the characteristics of the zero knowledge proof, the sources and the original addresses of the asset owner and the payee cannot be checked when the forwarder signs, and the asset can be transferred to the corresponding payee by verifying the zero knowledge proof after signing, so that the asset owner is hidden, and the privacy protection of the asset owner is improved. Meanwhile, pooling of the input original assets can be applied to common pooling and hiding of digital assets on various blockchains without being limited to a certain specific asset and quantity. Further, compared with the existing mixed currency based on non-cost transaction, the method supports an account model, can hide a transaction chain from an account of an asset owner to an account of a new asset owner, and protects the privacy of the asset owner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a block chain-based asset hiding method according to a first embodiment of the present invention.
Fig. 2 is a flowchart of step S1 in a block chain-based asset hiding method according to a first embodiment of the present invention.
Fig. 3 is a flowchart of step S2 in a block chain-based asset hiding method according to a first embodiment of the present invention.
Fig. 4 is a flowchart of step S4 in a block chain-based asset hiding method according to a first embodiment of the present invention.
Fig. 5 is a block diagram of a blockchain-based asset hiding system according to a second embodiment of the present invention.
Fig. 6 is a block diagram of a key generation unit in a blockchain-based asset hiding system according to a second embodiment of the present invention.
Fig. 7 is a block diagram of a forwarding signature unit in a blockchain-based asset hiding system according to a second embodiment of the present invention.
Fig. 8 is a block diagram of an electronic device according to a third embodiment of the present invention.
Description of reference numerals:
1. a key generation unit; 2. an asset pooling unit; 3. a zero knowledge calculation unit; 4. a forwarding signature unit;
5. a forwarding verification unit; 6. an asset transmitting unit; 7. terminating the transaction unit;
11. a key calculation unit; 12. a key storage unit; 41. a signature interface unit; 42. a signature filling unit;
10. a memory; 20. a processor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention discloses an asset hiding method based on a block chain, which includes the following steps:
step S1: and the asset owner sends the original asset on the block chain, and acquires an asset certification key and a hash value corresponding to the original asset.
Step S2: and converting the original assets into universal asset data based on the asset exchange rate, and storing the universal asset data into the asset pool.
Step S3: and the asset owner selects the forwarder and a set amount of general asset data according to the stored asset certification key to generate a zero knowledge certification and a corresponding intelligent contract.
Step S4: and the forwarding party signs the intelligent contract based on the forwarding key and sends the intelligent contract to the block chain.
Step S5: the blockchain verifies whether the property owner is valid based on the zero knowledge proof, if so, the process goes to step S6, and if not, the process goes to step S7.
Step S6: and based on the intelligent contract, converting the corresponding amount of universal asset data into a preset token type and sending the token type to the payee. And
step S7: the transaction operation is terminated.
It will be appreciated that in step S1, the transaction is lifted by the property owner on the blockchain to transfer the property to the blockchain platform, which requires the generation of the corresponding property attestation key and commitment of the property attestation key, which is essentially a hash of the property attestation key, for the input original property. Meanwhile, the asset certification key is used for certifying the ownership of the asset by the owner in a subsequent process, and is different from the key of the blockchain account login system.
It is understood that in step S2, the original assets input by the user need to be data-converted into currency data common to the blockchain, which is convenient for storage.
It is understood that in step S3, the asset owner enters the asset interface according to the stored asset certification key, may select the designated address of the forwarding party and the receiving party, the amount of the transferred assets, and the currency to generate the corresponding intelligent contract, and generate the function algorithm based on the zero knowledge certification to obtain the zero knowledge certification, which is as follows:
Proof，MixToken＝ProofGen(Serect,Forwarder,j)
proof is generated, Proof is zero knowledge Proof generating function of zk-SNARK algorithm, receive is asset Proof key generated in step S1, Forwarder is forwarding address specified by asset owner, MixToken is number of universal asset data stored in step S1, and j is type of token required to be extracted.
It is understood that in step S3, the zero knowledge proof algorithm is one of many mature and widely used zero knowledge proof algorithms in the industry, and the zk-SNARK which is mature and runs in the blockchain of etherhouse and the like is applied in this patent. The zero knowledge proof refers to a proof that the prover can convince the verifier that some argument is correct without providing the verifier with any useful information.
It is understood that in step S4, the forwarding party enters the signature region of the smart contract through the private forwarding key, signs, and sends the signature to the blockchain, and at this time, the forwarding party can only sign at the smart contract.
It will be appreciated that in step S5, the blockchain transaction triggers the smart contract, requiring verification of the certification of the owner of the asset in the transaction generated by the forwarder, as follows:
Result＝IsValid(Proof,RootOf(MixToken))
wherein IsValid is a verification function of zero knowledge Proof, Proof is the zero knowledge Proof generated in step S3, rootof (mixtoken) is the mercker tree root of the asset pool formed by storing a plurality of assets of a specific general asset data quantity into the transaction, and Result is the verification Result.
Referring to fig. 2, the step S1 specifically includes:
step S11: and the asset owner sends the original asset on the block chain, and acquires the asset certification key and the hash value of the original asset based on a zero knowledge certification algorithm. And
step S12: the asset attestation key and the hash value are stored persistently locally.
It is understood that, in step S11, the process of generating the key and the hash value (commitment) is as follows:
Secrect,Commitment＝SecrectGen(Random())
the Random () is a secure Random function, and the output of the function is a very large Random number or Random number seed. SecrectGen is the key and commitment generation algorithm for the zero knowledge proof of knowledge algorithm.
It will be appreciated that in step S12, the user needs to locally persist the certification key generated in step S11, referred to as the asset certification key after storage.
It is understood that steps S11-S12 are only one embodiment of this example, and the embodiment is not limited to steps S11-S12.
Referring to fig. 3, the step S2 specifically includes:
step S21: and converting the sent original assets into the universal asset data based on the asset exchange rate. And
step S22: and storing the universal asset data and the corresponding hash value into the asset pool.
It is understood that in step S21, the assets submitted by the user are converted into MixToken according to the existing asset exchange table. The conversion process is as follows:
MixToken＝RateOfi*value
wherein MixToken refers to the total number of converted universal asset data, RateOfiRefers to the exchange rate of the generic asset data for the i < th > asset, and value refers to the number of original assets. For example, if the asset owner sends 10 USDTs of assets in 1, the exchange rate is 8 according to the asset exchange table of the universal asset data, and the universal asset data stored by the asset owner is finally 80, and the hash value submitted in step S11 is added, and the data is input into the asset pool.
It is understood that steps S21-S22 are only one embodiment of this example, and the embodiment is not limited to steps S21-S22.
Referring to fig. 4, the step S4 specifically includes:
step S41: the forwarding party enters a signature interface of the intelligent contract based on the forwarding key; and
step S42: and the forwarding party checks the zero knowledge proof of the asset owner and the quantity of the universal asset data to be forwarded, signs in a specified area, and sends the signed quantity to the block chain to finish forwarding confirmation.
It is to be understood that in step S41, the forwarder enters the signature interface of the corresponding smart contract by means of the forwarding key.
It will be appreciated that in step S42, the forwarder can only view the zero knowledge proof of the property owner and the amount of universal currency data that needs to be transferred at the current signing interface, but not the original address of the property owner, so that the property owner remains invisible to the forwarder and privacy is not compromised.
It is understood that steps S41-S42 are only one embodiment of this example, and the embodiment is not limited to steps S41-S42.
Referring to fig. 5, a second embodiment of the present invention provides a block chain-based asset hiding system, including:
and the key generation unit 1 is used for sending the original asset on the block chain by the asset owner, and acquiring an asset certification key and a hash value corresponding to the original asset.
And the asset pooling unit 2 is used for converting the original assets into the universal asset data based on the asset exchange rate and storing the universal asset data into the asset pool.
And the zero knowledge calculation unit 3 is used for selecting the forwarding party and the set amount of general asset data by the asset ownership party according to the stored asset certification key to generate a zero knowledge certification and a corresponding intelligent contract.
And the forwarding signature unit 4 is used for the forwarding party to sign the intelligent contract based on the forwarding key and send the intelligent contract to the block chain.
And the forwarding verification unit 5 is used for verifying whether the asset owner is valid or not based on the zero knowledge proof by the block chain.
And the asset sending unit 6 is used for converting the corresponding amount of general asset data into a preset token type based on the intelligent contract and sending the token type to the payee when the asset owner is verified to be valid. And
and the transaction termination unit 7 is used for terminating the transaction operation when the property owner is verified to be valid.
Referring to fig. 6, the key generation unit 1 further includes:
and the key calculation unit 11 is used for sending the original asset on the block chain by the asset owner, and acquiring the asset certification key and the hash value of the original asset based on a zero knowledge certification algorithm. And
and the key storage unit 12 is used for locally and persistently storing the asset certification key and the hash value.
Referring to fig. 7, the forwarding signature unit 4 further includes:
a signature interface unit 41, configured to enable the forwarding party to enter a signature interface of the smart contract based on the forwarding key; and
and the signature filling unit 42 is used for the forwarding party to check the zero-knowledge proof of the asset owner and the quantity of the universal asset data to be forwarded, sign in the specified area and send to the block chain to complete forwarding confirmation.
Referring to fig. 8, a third embodiment of the present invention provides an electronic device, where the electronic device includes a memory 10 and a processor 20, and the memory 10 stores therein a computer program, where the computer program is configured to execute the steps in any one of the embodiments of the block chain-based asset hiding method described above when running. The processor 20 is arranged to perform the steps of any of the above embodiments of the blockchain-based asset hiding method by means of the computer program.
Optionally, in this embodiment, the electronic device may be located in at least one network device of a plurality of network devices of an operating machine network.
The asset side hiding method, system and electronic equipment based on the block chain have the following beneficial effects:
the method comprises the steps that an asset owner lifts a transaction on a block chain, original assets are pooled, asset certification keys and hash values are obtained, meanwhile, zero knowledge certification and an intelligent contract are obtained based on a zero knowledge algorithm, a forwarding party verifies the zero knowledge certification on the block chain to trigger the intelligent contract after signing in a signing area of the intelligent contract, and the transfer of the assets is completed. The method combines the characteristics of the zero knowledge proof, the sources and the original addresses of the asset owner and the payee cannot be checked when the forwarder signs, and the asset can be transferred to the corresponding payee by verifying the zero knowledge proof after signing, so that the asset owner is hidden, and the privacy protection of the asset owner is improved. Meanwhile, pooling of the input original assets can be applied to common pooling and hiding of digital assets on various blockchains without being limited to a certain specific asset and quantity. Further, compared with the existing mixed currency based on non-cost transaction, the method supports an account model, can hide a transaction chain from an account of an asset owner to an account of a new asset owner, and protects the privacy of the asset owner.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. An asset side hiding method based on a block chain is characterized by comprising the following steps:
step S1: an asset owner sends an original asset on a block chain, and an asset certification key and a hash value corresponding to the original asset are obtained;
step S2: converting original assets into universal asset data based on the asset exchange rate, and storing the universal asset data into an asset pool;
step S3: the asset owner selects the forwarder and a set amount of general asset data according to the stored asset certification key to generate a zero knowledge certification and a corresponding intelligent contract;
step S4: the forwarding party signs the intelligent contract based on the forwarding key and sends the intelligent contract to the block chain;
step S5: the blockchain verifies whether the property owner is valid or not based on the zero knowledge proof, if so, the step S6 is carried out, and if not, the step S7 is carried out;
step S6: based on the intelligent contract, converting the corresponding amount of universal asset data into a preset token type, and sending the token type to a payee; and
step S7: the transaction operation is terminated.
2. The blockchain-based asset side hiding method of claim 1, wherein: the step S1 specifically includes:
step S11: an asset owner sends an original asset on a block chain, and acquires an asset certification key and a hash value of the original asset based on a zero knowledge certification algorithm; and
step S12: the asset attestation key and the hash value are stored persistently locally.
3. The blockchain-based asset side hiding method of claim 1, wherein: the step S2 specifically includes:
step S21: converting the sent original assets into universal asset data based on the asset exchange rate; and
step S22: and storing the universal asset data and the corresponding hash value into the asset pool.
4. The blockchain-based asset side hiding method of claim 1, wherein: the step S4 specifically includes:
step S41: the forwarding party enters a signature interface of the intelligent contract based on the forwarding key; and
step S42: and the forwarding party checks the zero knowledge proof of the asset owner and the quantity of the universal asset data to be forwarded, signs in a specified area, and sends the signed quantity to the block chain to finish forwarding confirmation.
5. The blockchain-based asset side hiding method of claim 1, wherein: in step S3, the property owner inputs the address of the payee in the address interface of the intelligent contract.
6. An asset side hiding system based on a block chain is characterized in that: the method comprises the following steps:
the key generation unit is used for sending the original asset on the block chain by the asset owner to obtain an asset certification key and a hash value corresponding to the original asset;
the asset pooling unit is used for converting the original assets into universal asset data based on the asset exchange rate and storing the universal asset data into an asset pool;
the zero knowledge computing unit is used for selecting a forwarding party and a set amount of general asset data by an asset owner according to the stored asset certification key to generate a zero knowledge certification and a corresponding intelligent contract;
the forwarding signing unit is used for signing the intelligent contract by the forwarding party based on the forwarding key and sending the intelligent contract to the block chain;
a forwarding verification unit for verifying whether the asset owner is valid based on the zero knowledge proof by the blockchain;
the asset sending unit is used for converting the corresponding amount of general asset data into a preset token type based on an intelligent contract and sending the token type to the payee when the effectiveness of all the assets is verified; and
and the transaction termination unit is used for terminating the transaction operation when the property owner is verified to be valid.
7. The blockchain-based asset side hiding system of claim 6, wherein: the key generation unit further includes:
the key calculation unit is used for sending the original asset on the block chain by the asset owner and acquiring an asset certification key and a hash value of the original asset based on a zero knowledge certification algorithm; and
and the key storage unit is used for locally and persistently storing the asset certification key and the hash value.
8. The blockchain-based asset side hiding system of claim 6, wherein: the forwarding signature unit further includes:
the signature interface unit is used for enabling the forwarding party to enter a signature interface of the intelligent contract based on the forwarding key; and
and the signature filling unit is used for checking the zero knowledge proof of the asset owner and the quantity of the universal asset data to be forwarded by the forwarding party, signing in the specified area and sending the signed quantity to the block chain to finish forwarding confirmation.
9. An electronic device comprising a memory and a processor, characterized in that: the memory having stored therein a computer program arranged in operation to perform the blockchain-based asset side concealment method of any of claims 1 to 5;
the processor is arranged to execute the blockchain-based asset side concealment method of any of claims 1 to 5 by means of the computer program.
CN202110396402.8A 2021-04-13 2021-04-13 Asset side hiding method and system based on block chain and electronic equipment Pending CN113011982A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108389046A (en) * 2018-02-07 2018-08-10 西安交通大学 Secret protection method of commerce based on block chain technology in a kind of e-commerce
CN109472696A (en) * 2018-09-29 2019-03-15 腾讯科技（深圳）有限公司 Transaction in assets method, apparatus, storage medium and computer equipment
CN110096905A (en) * 2019-04-28 2019-08-06 杭州秘猿科技有限公司 Using the method, apparatus and electronic equipment of block chain technology secrecy trust assets
CN110958110A (en) * 2019-12-09 2020-04-03 趣派(海南)信息科技有限公司 Block chain private data management method and system based on zero knowledge proof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108389046A (en) * 2018-02-07 2018-08-10 西安交通大学 Secret protection method of commerce based on block chain technology in a kind of e-commerce
CN109472696A (en) * 2018-09-29 2019-03-15 腾讯科技（深圳）有限公司 Transaction in assets method, apparatus, storage medium and computer equipment
CN110096905A (en) * 2019-04-28 2019-08-06 杭州秘猿科技有限公司 Using the method, apparatus and electronic equipment of block chain technology secrecy trust assets
CN110958110A (en) * 2019-12-09 2020-04-03 趣派(海南)信息科技有限公司 Block chain private data management method and system based on zero knowledge proof

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