CN105610578B - Block chain information deposits card and method for secret protection - Google Patents

Block chain information deposits card and method for secret protection Download PDF

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Publication number
CN105610578B
CN105610578B CN201610047882.6A CN201610047882A CN105610578B CN 105610578 B CN105610578 B CN 105610578B CN 201610047882 A CN201610047882 A CN 201610047882A CN 105610578 B CN105610578 B CN 105610578B
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China
Prior art keywords
information
block chain
card
secret protection
contract
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CN201610047882.6A
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CN105610578A (en
Inventor
王志文
吴思进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Jiaoda Chain Technology Co.,Ltd.
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Hangzhou Fuzamei Technology Co Ltd
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Priority to CN201610047882.6A priority Critical patent/CN105610578B/en
Publication of CN105610578A publication Critical patent/CN105610578A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0861Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0869Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds

Abstract

Block chain information deposits card and method for secret protection, the information for needing to deposit card is added generating random number cryptographic Hash, then signed again by Stakeholder or eye-witness and generate Hash, is lastly recorded on block chain.Some information for needing to deposit card are to format, and separate formatted information and fill out information certainly, store and do hash check respectively, information of such as filling a vacancy, selection information, postscript information, random number information (preventing Brute Force).Only know that the related talent of raw information can unlock oneself with private key with the data of public key encryption, allow the true and false of third-party authentication information, such as the information of encryption can be disclosed to judiciary the case where needing judiciary to intervene.

Description

Block chain information deposits card and method for secret protection
Technical field
The present invention relates to Internet technical field, especially block chain, information to deposit the technologies such as card, secret protection.
Background technique
There are no fine or convenient methods can guarantee that information is not tampered for existing Internet technology, also has no idea Contract is executed automatically by program, liability for breach of contract occurs and is also required to handle by complicated judicial process, it is still necessary to expend A large amount of manpower and material resources.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, block chain information of the present invention deposits card and method for secret protection, can be true The authenticity of breath or contract information-preserving, block chain program can execute contract automatically, and liability for breach of contract can also execute automatically, interests it is related or Respectively saved after depositing card center public key encryption, it is ensured that privacy only, need it is true to third party (such as judiciary) verification information Information can be decrypted when pseudo- to third party, third party can be with the true and false of verification information by Hash and public key.
The technical scheme adopted by the invention is that: the information for needing to deposit card is added into generating random number cryptographic Hash, then by benefit Beneficial relevant people or eye-witness sign again and generate Hash, are lastly recorded on block chain.
Some information for needing to deposit card are to format, and separable formatted information and fill out information certainly, respectively storage and Hash check is done, information of such as filling a vacancy, selection information, postscript information, random number information (preventing Brute Force).
The privacy information that card need to be deposited will not be directly recorded on block chain, be needed after information relevant people public key encryption voluntarily Preserving type is selected, or is stored in and oneself thinks on suitable block chain, information relevant people is needed information cryptographic Hash, relevant people Signature and cryptographic Hash can be saved together with public key encryption, can avoid save data be tampered, convenient search.
If information is the contract in relation to needing to be implemented, can allowing contract terms authorization, block chain executes conjunction under certain condition Same permission can be automatically transferred in relevant account digital cash, digital asset after reaching certain clause.
Favorable comment can be given automatically for honouring an agreement, or need to be undertaken by correlation and penalized for delinquent party as the foundation of credit rating Money reduces credit grade, or even write-in blacklist.
Block chain program only knows without knowing that all the elements of information or contract can also be executed by the program of setting The related talent of raw information can unlock oneself with private key with the data of public key encryption, allow the true and false of third-party authentication information, Such as the information of encryption can be disclosed to judiciary the case where needing judiciary to intervene.
Compared with prior art, the beneficial effects of the present invention are:
Block chain information of the present invention deposits card and method for secret protection, it can be ensured that the authenticity of information or contract, block chain Program can execute contract automatically, and liability for breach of contract can also execute automatically, and interests are related or deposit each self-insurance after the public key encryption of card center It deposits, avoids privacy leakage, information can be decrypted to third party when needing to third party (such as judiciary) verification information true and false, Third party can be with the true and false of verification information by Hash and public key.
Detailed description of the invention
Fig. 1 is that block chain information deposits card, secret protection, information checking method figure;
Fig. 2 is the secret protection of block chain, information checking method figure;
Fig. 3 is the automatic implementation procedure figure of block chain contract.
Specific embodiment
The present embodiment illustrates that block chain information deposits card, secret protection, information checking method with attached drawing 1,2:
House purchase contract, blank form contract sample and its cryptographic Hash, it is ensured that the release content of standard form of contract is consistent.
User only need by the filling a vacancy (information etc. including relevant people) of contract, select, postscript completes the contract of can be completed;
Cryptographic Hash 2 will be obtained after the above content Hash, original contract is completed;
Buyer, seller, eye-witness can successively sign 3, and subsidiary corresponding public key, to verify;
Building property registration center secret key signature 4, and Hash obtains cryptographic Hash 5, and public key 6 is saved in together 11 on block chain;
Buyer, seller, eye-witness, building property registration center by after oneself public key signature of information above 9 can from Row storage, there may also be on block chain.
User oneself needs to check information, or needs to check information (such as judicial department) to third party and can look by the following method It tests:
First the encryption file 9 of oneself is found, to third party after decrypting 8 with private key;
After third party obtains initial data 1,2,3,4,5,6, cryptographic Hash 2 can will be generated with original house purchase contract 1;
Whether the cryptographic Hash for verifying building property registration center secret key signature 4 is the cryptographic Hash 5 recorded on block chain;
Building property registration center secret key signature 4 is decrypted with building property registration center public key 6, obtains 3;
It is successively decrypted with eye-witness, seller, buyer's public key, obtains and 2 consistent cryptographic Hash, verification result are original Contract authentic and valid 10.
The present embodiment attached drawing 3 illustrates the automatic implementation procedure of block chain contract:
A, B, C, D enterprise sign bidding contract, and wherein D is bid enterprise, and other is didding enterprise;
Contract engagement, every didding enterprise need payment deposit 1,000,000 (encryption digital cash) before submitting a tender;
Deposit is unconditionally returned in contract regulation 10 or after the off period;
Tenderer chooses one, remaining each deposit is retracted automatically.

Claims (5)

1. block chain information deposits card and method for secret protection, which is characterized in that will need to deposit the information of card plus generating random number Cryptographic Hash, then signed again by Stakeholder or eye-witness and generate Hash, it is lastly recorded on block chain;The privacy of card need to be deposited Information will not be directly recorded on block chain, voluntarily select preserving type after needing information relevant people public key encryption, or save On oneself thinking suitable block chain, information relevant people is needed can one by information cryptographic Hash, the signature of relevant people and cryptographic Hash It is saved with public key encryption, can avoid preservation data and be tampered, convenient search.
2. information according to claim 1 deposits card and method for secret protection, which is characterized in that some need to deposit the information of card It is to format, separates formatted information and fill out information certainly, store and do hash check respectively, information of such as filling a vacancy, selection Information, postscript information, random number information (preventing Brute Force).
3. information according to claim 1 deposits card and method for secret protection, which is characterized in that if information is that related needs are held Capable contract, can allow contract terms authorization under certain condition block chain execute contract permission, for digital cash, number Assets can be automatically transferred in relevant account after reaching certain clause.
4. information according to claim 1 or 3 deposits card and method for secret protection, which is characterized in that can be certainly for honouring an agreement It is dynamic to give favorable comment, or need to be undertaken by associated fine or reduce credit grade, even for delinquent party as the foundation of credit rating Blacklist is written.
5. information according to claim 1 deposits card and method for secret protection, which is characterized in that block chain program is without knowing Information or all the elements of contract can also be executed by the program of setting, only know that the related talent of raw information can be oneself It is unlocked with the data of public key encryption with private key, allows the true and false of third-party authentication information, such as the case where needing judiciary to intervene The information of encryption can be disclosed to judiciary.
CN201610047882.6A 2016-01-25 2016-01-25 Block chain information deposits card and method for secret protection Active CN105610578B (en)

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