CN106850200A - A kind of method for using the digital cash based on block chain, system and terminal - Google Patents
A kind of method for using the digital cash based on block chain, system and terminal Download PDFInfo
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- CN106850200A CN106850200A CN201710056081.0A CN201710056081A CN106850200A CN 106850200 A CN106850200 A CN 106850200A CN 201710056081 A CN201710056081 A CN 201710056081A CN 106850200 A CN106850200 A CN 106850200A
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- China
- Prior art keywords
- digital cash
- digital
- block chain
- client
- performing environment
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Classifications
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0877—Generation of secret information including derivation or calculation of cryptographic keys or passwords using additional device, e.g. trusted platform module [TPM], smartcard, USB or hardware security module [HSM]
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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
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
- G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
- H04L9/0897—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage involving additional devices, e.g. trusted platform module [TPM], smartcard or USB
-
- 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
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
- H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
-
- 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
- H04L9/3234—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 involving additional secure or trusted devices, e.g. TPM, smartcard, USB or software token
Abstract
The invention discloses the method using the digital cash based on block chain, system and terminal, method includes：Digital cash client sends the request of application digital certificate to block chain, receives block chain and returns to corresponding customer information after identity and requests verification pass through；According to customer information, applying digital certificate is sent to safety chip by credible performing environment；Safety chip generates key pair and digital cash wallet address according to customer information, and digital cash wallet address is exported to digital cash client by credible performing environment；Digital cash client sends digital cash wallet address to block chain, block chain is obtained digital certificate from authentication center according to digital cash wallet address；After digital cash client receives the digital certificate that block chain sends, sending digital certificate mount request to safety chip by credible performing environment makes safety chip install digital certificate；The security of block chain digital cash wallet is improved by safety chip, credible performing environment.
Description
Technical field
It is more particularly to a kind of to use the method for the digital cash based on block chain, be the present invention relates to communication technique field
System and terminal.
Background technology
In current bit coin system, bit coin address is the public key in a set of unsymmetrical key, and this passes through to key
Oval algorithm generation.The address of user account and private key are all stored in bit coin wallet (i.e. digital cash wallet) file, private
Key carries out encryption and decryption computing by bit coin client software.The digital cash wallet technology for being currently based on block chain technology is all base
In bit coin, can classify as：Webpage wallet, multi-signature wallet, desktop wallet, mobile terminal wallet.
Decentralization and anonymity due to whole bit coin system, digital cash wallet are once lost, digital cash money
The bit coin that all addresses preserve in bag is possible to be stolen.Bit coin is once stolen, and cannot be retrieved.Therefore, need
Ensure the safety of digital cash wallet.And existing digital cash wallet solution is all the formation backup of online backup private key
Digital cash wallet, although take many safety measures ensure using and data safety, numerous attack case and
System vulnerability shows, so still it cannot be guaranteed that in digital cash wallet digital cash safety.Therefore, how to ensure based on block
The safety of the digital cash of chain, is those skilled in the art's technical issues that need to address.
The content of the invention
It is an object of the invention to provide a kind of method for using the digital cash based on block chain, system and terminal, pass through
Safety chip, credible performing environment improve the security of block chain digital cash wallet.
In order to solve the above technical problems, the present invention provides a kind of method using the digital cash based on block chain, it is described
Method includes：
Digital cash client sends the request of application digital certificate to block chain, makes the block chain according to the request
Carry out user identity and requests verification and return to corresponding customer information to the digital cash client after being verified；
The digital cash client sends numeral by credible performing environment according to the customer information to safety chip
Certificate request；
The safety chip generates key pair and digital cash wallet address according to the customer information, and by described
Credible performing environment exports the digital cash wallet address to the digital cash client；
The digital cash client sends the digital cash wallet address to the block chain, makes the block chain root
According to the digital cash wallet address digital certificate is obtained from authentication center；
After the digital cash client receives the digital certificate that the block chain sends, by the credible execution
Environment sends digital certificate mount request to the safety chip；
The safety chip installs digital certificate according to the digital certificate mount request.
Optionally, the safety chip generates key pair and digital cash wallet address, bag according to the customer information
Include：
The safety chip generates private key according to the customer information, and generates public key using the private key；
The public key process using hash algorithm and obtains public key Hash, and numeral is generated according to the public key Hash
Currency wallet address.
Optionally, install after digital certificate, also include：
Sender's digital cash client is calculated transaction data original text using predetermined Hash under the credible performing environment
Method is calculated summary info, and sender's private key is obtained from the safety chip；
Described sender digital cash client is under the credible performing environment by the summary info and the hair
The side's of sending private key, generates digital signature, and the digital signature and the transaction data original text are sent to using AES
In the block chain.
Optionally, when recipient's digital cash client obtains the digital signature and the friendship from the block chain
After easy data original text, also include：
Recipient's digital cash client is under the credible performing environment by the transaction data original text using described pre-
Determine hash algorithm and be calculated the first summary info；
Recipient's digital cash client, according to sender's public key, is calculated under the credible performing environment using decryption
Method is decrypted to the digital signature and obtains the second summary info；
It is traded when first summary info is consistent with second summary info.
Optionally, when the digital cash client is under off-line state, also include：
Sender's digital cash client is traded data message certification and data under the credible performing environment
After verification transaction application is sent to recipient's digital cash client；
Recipient's digital cash client received under the credible performing environment and examine it is described transaction application after
Confirmation is returned to described sender digital cash client, and updates transaction record；
Described sender digital cash client updates transaction record under the credible performing environment；
Described sender digital cash client and recipient's digital cash client meet condition in network state
When to the synchronous transaction record of the block chain, make the block chain and corresponding the third-party server synchronously transaction note
Record.
Optionally, the download of the digital cash client includes：
The preset digital cash client executable is installed or by under online in the safety chip
Digital cash client executable is carried to be installed.
The present invention also provides a kind of system using the digital cash based on block chain, including：
Digital cash client, the request for sending application digital certificate to block chain, makes the block chain according to institute
Stating request carries out user identity and requests verification and returns to corresponding client to the digital cash client after being verified
Information；According to the customer information, applying digital certificate is sent to safety chip by credible performing environment；To the block chain
The digital cash wallet address is sent, the block chain is obtained number from authentication center according to the digital cash wallet address
Word certificate；After receiving the digital certificate that the block chain sends, by the credible performing environment to the safety chip
Send digital certificate mount request；
The safety chip module, for generating key pair and digital cash wallet address according to the customer information,
And the digital cash wallet address is exported to the digital cash client by the credible performing environment；According to the number
Word certificate mount request installs digital certificate；
The credible performing environment module, for providing credible performing environment.
Optionally, the digital cash client also includes：
Transaction transmitting element, based on transaction data original text is utilized into predetermined Hash algorithm under the credible performing environment
Calculation obtains summary info, and sender's private key is obtained from the safety chip；By the summary info and described sender
Private key, digital signature is generated using AES, and the digital signature and the transaction data original text is sent to described
In block chain；
Transaction acceptance unit, for the transaction data original text to be utilized into the predetermined Kazakhstan under the credible performing environment
Uncommon algorithm is calculated the first summary info；According to sender's public key, the digital signature is decrypted using decipherment algorithm
Obtain the second summary info；It is traded when first summary info is consistent with second summary info.
Optionally, the digital cash client also includes：
Off-line trading transmitting element, for being traded data message certification and data under the credible performing environment
After verification transaction application is sent to recipient's digital cash client；And recipient's digital cash client it is described can
After the transaction application is received and examined under letter performing environment, receive recipient's digital cash client and return to confirmation letter
Breath, and update transaction record；
Off-line trading synchronization unit, for when digital cash client when network state meets condition to the block chain
The synchronous transaction record, makes the block chain and corresponding the third-party server synchronously transaction record.
The present invention also provides a kind of terminal, including：
Digital cash client end processor, the request for sending application digital certificate to block chain, makes the block chain
User identity and requests verification are carried out according to the request and correspondence is returned to the digital cash client after being verified
Customer information；According to the customer information, applying digital certificate is sent to safety chip by credible performing environment；To described
Block chain sends the digital cash wallet address, makes the block chain according to the digital cash wallet address from authentication center
Obtain digital certificate；After receiving the digital certificate that the block chain sends, by the credible performing environment to the peace
Full chip sends digital certificate mount request；
The safety chip, for generating key pair and digital cash wallet address according to the customer information, and leads to
Cross the credible performing environment and export the digital cash wallet address to the digital cash client；According to the numeral card
Book mount request installs digital certificate；
The credible performing environment processor, for providing credible performing environment.
Method using the digital cash based on block chain provided by the present invention, methods described includes：Digital cash visitor
Family end sends the request of application digital certificate to block chain, the block chain is carried out user identity and request according to the request
Verify and return to corresponding customer information to the digital cash client after being verified；The digital cash client root
According to the customer information, applying digital certificate is sent to safety chip by credible performing environment；The safety chip is according to institute
Customer information generation key pair and digital cash wallet address are stated, and by the credible performing environment to the digital cash
Client exports the digital cash wallet address；The digital cash client sends the digital cash to the block chain
Wallet address, makes the block chain obtain digital certificate from authentication center according to the digital cash wallet address；The numeral
After currency client receives the digital certificate that the block chain sends, by the credible performing environment to the safe core
Piece sends digital certificate mount request；The safety chip installs digital certificate according to the digital certificate mount request；
It can be seen that, both possessed hardware tamper-resistance properties due to safety chip, the safe encryption function of software is provided simultaneously with, it is credible to hold
Row environment possesses certain hardware protection ability；Therefore the method improves block chain number by safety chip, credible performing environment
The security of word currency wallet.Will software and reliable hardware platform combine, for digital cash wallet provides complete safety guarantor
Barrier.The present invention also provides a kind of system and terminal using the digital cash based on block chain, with above-mentioned beneficial effect, herein
Repeat no more.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
The flow chart of the method for digital cash of the use based on block chain that Fig. 1 is provided by the embodiment of the present invention；
The process schematic of the digital cash client initialization that Fig. 2 is provided by the embodiment of the present invention；
The mapping relations schematic diagram of the private key that Fig. 3 is provided by the embodiment of the present invention and digital cash wallet address；
The process schematic that the digital cash client transaction that Fig. 4 is provided by the embodiment of the present invention is used；
The process schematic that Fig. 5 is used by digital cash client off-line that the embodiment of the present invention is provided；
Fig. 6 integrally uses schematic diagram by the digital cash client that the embodiment of the present invention is provided；
The structured flowchart of the system of digital cash of the use based on block chain that Fig. 7 is provided by the embodiment of the present invention；
A kind of structured flowchart of terminal that Fig. 8 is provided by the embodiment of the present invention.
Specific embodiment
Core of the invention is to provide a kind of method for using the digital cash based on block chain, system and terminal, passes through
Safety chip, credible performing environment improve the security of block chain digital cash wallet.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present embodiment is implemented including three layers：The bottom is one and had both possessed hardware tamper-resistance properties, is provided simultaneously with soft
The safety chip of the safety encryption of part, (such as SE)；Intermediate layer, credible performing environment (such as TEE) possesses certain hardware package
Shield ability, while in contrast bottom safe unit this rank, do not possess hardware it is anti-can tamper, be a more low cost
Security architecture.The superiors are open operating system layers, only software protection ability, the rank of safeguard protection be it is minimum,
It is also to download layer where the digital cash client after installing.The present embodiment can be realized improving block chain numeral in this structure
The security of currency wallet.Specifically refer to Fig. 1, numeral of the use based on block chain that Fig. 1 is provided by the embodiment of the present invention
The flow chart of the method for currency；Methods described can include：
S100, digital cash client to block chain send application digital certificate request, make block chain according to ask into
Row user identity and requests verification simultaneously return to corresponding customer information after being verified to digital cash client；
S110, digital cash client send numeral card by credible performing environment according to customer information to safety chip
Book application；
S120, safety chip generate key pair and digital cash wallet address according to customer information, and are held by credible
Row environment is to digital cash client output digital cash wallet address；
S130, digital cash client send digital cash wallet address to block chain, make block chain according to digital cash
Wallet address obtains digital certificate from authentication center；
After S140, digital cash client receive the digital certificate that block chain sends, by credible performing environment to safety
Chip sends digital certificate mount request；
S150, safety chip install digital certificate according to digital certificate mount request.
Wherein, digital cash wallet here can be understood as digital cash client, when user carries out the transaction of bit coin
Digital cash client is be unable to do without, therefore first has to download and install digital cash client when using digital cash.This reality
Apply example and do not limit the concrete mode downloaded and install digital cash client, it can carry out adaptability choosing according to different terminals
Select, to improve the adaptability of digital cash client.Preferably, the download of digital cash client can include：In safe core
Preset digital cash client executable is installed or can perform journey by download online digital cash client in piece
Sequence is installed.That is digital wallet application preset in safety chip (such as SE) can also can be pacified by download online mode
Dress.
Specifically, the present embodiment S100 to S150 can realize the purse initialised process of digital cash, the digital cash money
Its digital cash client is initialized only in the superiors' open operating system layer in the initialization compared to existing technology of bag
Complete compared to safer.Data exchange process is complete under credible performing environment in the terminal for initialization procedure in the present embodiment
Into.And be related to the digital certificate that digital cash uses install and key pair generation in security safety chip very high
Complete.Three layers each play its topmost function i.e. in the initialization procedure of whole digital cash wallet, jointly to numeral
Currency client is protected.Such that it is able to fundamentally prevent outside world, and then improve block chain digital cash wallet
Security.
Said process can be illustrated by Fig. 2 below：Safety chip is SE in fig. 2, and its control process is pacified by SE
Complete to be served by realizing, the digital cash client in Fig. 2 is located in mobile terminal.
During initialization, the request of application digital certificate is submitted to block chain by digital cash client from user first,
Block chain business bank node carries out authentication and the requests verification of client, and key pair is being generated simultaneously by SE security services application
Go out to export digital cash wallet address (wallet address can also be referred to as)；Digital cash client is passed through to block chain from user
Node issues digital certificate to the digital wallet address, business bank is transmitted on business bank's node according to wallet address,
During this, the SE generation of responsible key and the installations of certificate safely.
Further for the security for improving digital cash wallet address.Digital cash wallet address is public in the present embodiment
Key can not inverse mapping.I.e. optional, safety chip generates key pair according to customer information and digital cash wallet address can
To include：
Safety chip generates private key according to customer information, and generates public key using private key；
Public key process using hash algorithm and obtains public key Hash, and digital cash wallet is generated according to public key Hash
Address.
It is that wallet address may map to public key Hash by digital cash money address specifically, refer to Fig. 3, but by
Public key Hash can not map acquisition public key, and can not be mapped by public key and obtain private key.Such setting can be protected further
Protect smuggling the security of key.So as to improve the security of digital cash.
Based on above-mentioned technical proposal, the method that use provided in an embodiment of the present invention is based on the digital cash of block chain, by
Both possessed hardware tamper-resistance properties in safety chip, be provided simultaneously with the safe encryption function of software, credible performing environment had possessed necessarily
Hardware protection ability；Therefore the method improves the peace of block chain digital cash wallet by safety chip, credible performing environment
Quan Xing.Will software and reliable hardware platform combine, for digital cash wallet provides complete safety guarantee.
Based on above-described embodiment, after digital certificate successfully is installed, that is, the initialization of digital cash client is completed
Afterwards, the use process of digital cash wallet is that process of exchange (for example may include how generation digital signature and sign test etc.
Process), the process can also include：
Transaction data original text is utilized predetermined Hash algorithm meter by sender's digital cash client under credible performing environment
Calculation obtains summary info, and sender's private key is obtained from safety chip；
Sender's digital cash client under credible performing environment by summary info and sender's private key, using encryption
Algorithm generates digital signature, and digital signature and transaction data original text are sent in block chain.
After recipient's digital cash client obtains digital signature and transaction data original text from block chain, also wrap
Include：
Transaction data original text is utilized predetermined Hash algorithm meter by recipient's digital cash client under credible performing environment
Calculation obtains the first summary info；
Recipient's digital cash client under credible performing environment according to sender's public key, using decipherment algorithm to numeral
Signature is decrypted and obtains the second summary info；
It is traded when the first summary info is consistent with the second summary info.
Specifically, by it is above-mentioned it can be seen that the process of exchange in data interaction be also all to be carried out under credible performing environment
, so that digital cash wallet is protected in the initialization procedure of digital cash client not only, also in process of exchange
Persistently digital cash wallet is protected, such that it is able to improve the security of digital cash, it is ensured that the property safety of user.And
The information for being related to key pair is required for interacting acquisition with safety chip, and then fundamentally protects the peace of digital cash
Quan Xing.The present embodiment is not defined to specific predetermined Hash algorithm, if sender and recipient use it is same
Hash algorithm.The present embodiment also compares AES and the particular content of decipherment algorithm is defined, as long as AES
It is a pair supporting algorithms with decipherment algorithm.
Said process can be illustrated by Fig. 4 below：Original text in Fig. 4 is transaction data original text, and summary is made a summary
Information, hash algorithm is hash algorithm.Digital cash client in Fig. 4 is located in mobile terminal
Before transmission of transaction data, original text is calculated summary by sender according to the hash algorithm of agreement, and using certainly
Oneself private key (being obtained from safety chip) is encrypted to summary and obtains digital signature, and recipient is sent jointly to original text, is connect
Debit is calculated original text using identical hash algorithm and made a summary, and is then obtained with being decrypted to numeral using the public key of sender
Summary contrasted.
Based on above-mentioned technical proposal, the method using the digital cash based on block chain provided in an embodiment of the present invention is led to
Cross the security that safety chip, credible performing environment improve block chain digital cash wallet, and the necessary data when being traded
Acquisition all rely on credible performing environment and safety chip so that process of exchange also by three-decker real-time guard, from
And improve the security of digital cash.
Based on above-mentioned any embodiment, because existing digital cash wallet can only be traded online, this mode exists
When bottleneck occurs in communication, trading efficiency is influenceed.The present embodiment can realize the offline friendship that existing digital cash wallet does not possess
Easy function, meets digital cash data and transaction security, easily demand.In the present embodiment, at digital cash client
When under off-line state, the method can include：
Sender's digital cash client is traded data message certification and data check under credible performing environment
Afterwards transaction application is sent to recipient's digital cash client；
Recipient's digital cash client is received under credible performing environment and examined after transaction is applied to sender's numeral
Currency client returns to confirmation, and updates transaction record；
Sender's digital cash client updates transaction record under credible performing environment；
Sender's digital cash client and recipient's digital cash client are when network state meets condition to block
Chain isochronous transaction is recorded, and block chain is recorded with corresponding third-party server isochronous transaction.
Wherein, can be good network state when network state meets condition, or there is safety and the strong net of signal
Network.The present embodiment is defined not to this.The detection of network state here can be carried out in real time, it is also possible to periodically enter
OK.The present embodiment is defined not to this.User can be set according to self-demand, it is also possible to be carried out manually network-like
The detection of state.Here transaction application can refer to the unique number monetary data string comprising Transaction Information.
Specifically, under off-line state, sender and recipient can be traded between the two, and when completion is concluded the business
Transaction record is updated in both corresponding digital cash clients, that is, records the details of this transaction.Subsequently to exist
In the case that network state is allowed, relevant third party is set to obtain the transaction record.Transaction is believed with meeting relevant third party
The management of breath.The verification and execution etc. in time to Transaction Information such as supervision of such as monitoring party to Transaction Information, bank.I.e. originally
Embodiment realizes the off-line trading of digital cash so that digital cash transaction is no longer dependent on network, improves what user used
Convenient degree.
Turn next to Fig. 5 and illustrate above-mentioned digital cash wallet off-line trading process：Digital cash client in Fig. 5
End is located in mobile terminal.
In process of exchange, both parties' terminal is in off-line state, i.e., only sender and recipient participate in.Transaction hair
Initiate to conclude the business and carry out the behaviour such as authentication (can be understood as containing the verification process of Transaction Information), data check in the side of sending
Make, recipient receives and returns to confirmation after examining transaction request, and both sides update transaction record file.Detection network state,
When network state is good, transaction record file is irregularly read, and carry out by block chain and business bank server
Transaction is synchronous, and updating maintenance domestic transaction is recorded.
Further, the present embodiment can also be traded the operation such as inquiry.Fig. 6 is specifically refer to, its entirety uses process
Can include：Application installation download, using initialization, application use.Digital cash client is carrying out key opposite
Into, ciphering process, decrypting process, signature verification etc. is all carried out under credible performing environment.Block chain and terminal and third party
Between (such as the business bank in Fig. 6) can be carried out certificate request, conclude the business, inquiry etc. digital cash operation.
Based on above-mentioned technical proposal, the method that the use that the embodiment of the present invention is carried is based on the digital cash of block chain passes through
Application software-TEE-SE three-layer technology frameworks are built, hardware and software platform is combined, for digital cash client provides what is completed
Safety guarantee.And realize digital cash off-line trading.So that user can more facilitate, safety carry out digital cash transaction.
The system and terminal using the digital cash based on block chain provided in an embodiment of the present invention is introduced below,
System and terminal using the digital cash based on block chain described below uses the number based on block chain with above-described
The method of word currency can be mutually to should refer to.
Refer to Fig. 7, the knot of the system of digital cash of the use based on block chain that Fig. 7 is provided by the embodiment of the present invention
Structure block diagram；The system can include：
Digital cash client 100, the request for sending application digital certificate to block chain, makes block chain according to request
Carry out user identity and requests verification and return to corresponding customer information to digital cash client after being verified；According to visitor
Family information, applying digital certificate is sent by credible performing environment to safety chip；Digital cash wallet ground is sent to block chain
Location, makes block chain obtain digital certificate from authentication center according to digital cash wallet address；Receive the numeral card that block chain sends
After book, digital certificate mount request is sent to safety chip by credible performing environment；
Safety chip module 200, for generating key pair and digital cash wallet address according to customer information, and passes through
Credible performing environment is to digital cash client output digital cash wallet address；Numeral is installed according to digital certificate mount request
Certificate；
Credible performing environment module 300, for providing credible performing environment.
Based on above-described embodiment, digital cash client 100 can also include：
Transaction transmitting element, for calculating transaction data original text using predetermined Hash algorithm under credible performing environment
To summary info, and sender's private key is obtained from safety chip；By summary info and sender's private key, using AES
Generation digital signature, and digital signature and transaction data original text are sent in block chain；
Transaction acceptance unit, for calculating transaction data original text using predetermined Hash algorithm under credible performing environment
To the first summary info；According to sender's public key, digital signature is decrypted using decipherment algorithm obtains the second summary info；
It is traded when the first summary info is consistent with the second summary info.
Based on above-described embodiment, digital cash client 100 can also include：
Off-line trading transmitting element, for being traded data message certification and data check under credible performing environment
Afterwards transaction application is sent to recipient's digital cash client；And in recipient's digital cash client under credible performing environment
After receiving and examining transaction application, receive recipient's digital cash client and return to confirmation, and update transaction record；
Off-line trading synchronization unit, for when digital cash client when network state meets condition to block chain synchronization
Transaction record, makes block chain be recorded with corresponding third-party server isochronous transaction.
Refer to Fig. 8, a kind of structured flowchart of terminal that Fig. 8 is provided by the embodiment of the present invention；The terminal can include：
Digital cash client end processor 10, the request for sending application digital certificate to block chain, makes block chain root
User identity and requests verification are carried out according to request and return to corresponding customer information to digital cash client after being verified；
According to customer information, applying digital certificate is sent to safety chip by credible performing environment；Digital cash is sent to block chain
Wallet address, makes block chain obtain digital certificate from authentication center according to digital cash wallet address；Receive what block chain sent
After digital certificate, digital certificate mount request is sent to safety chip by credible performing environment；
Safety chip 20, for generating key pair and digital cash wallet address according to customer information, and by credible
Performing environment is to digital cash client output digital cash wallet address；Numeral card is installed according to digital certificate mount request
Book；
Credible performing environment processor 30, for providing credible performing environment.
Specifically, the present embodiment is not defined to terminal.Here terminal can be mobile terminal.
Each embodiment is described by the way of progressive in specification, and what each embodiment was stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
Speech, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
The step of method or algorithm for being described with reference to the embodiments described herein, directly can be held with hardware, processor
Capable software module, or the two combination is implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In field in known any other form of storage medium.
The method for using the digital cash based on block chain provided by the present invention, system and terminal have been carried out in detail above
It is thin to introduce.Specific case used herein is set forth to principle of the invention and implementation method, and above example is said
It is bright to be only intended to help and understand the method for the present invention and its core concept.It should be pointed out that for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improvement
Also fallen into the protection domain of the claims in the present invention with modification.
Claims (10)
1. a kind of method that use is based on the digital cash of block chain, it is characterised in that methods described includes：
Digital cash client sends the request of application digital certificate to block chain, the block chain is carried out according to the request
User identity and requests verification simultaneously return to corresponding customer information after being verified to the digital cash client；
The digital cash client sends digital certificate by credible performing environment according to the customer information to safety chip
Application；
The safety chip generates key pair and digital cash wallet address according to the customer information, and by described credible
Performing environment exports the digital cash wallet address to the digital cash client；
The digital cash client sends the digital cash wallet address to the block chain, makes the block chain according to institute
State digital cash wallet address and obtain digital certificate from authentication center；
After the digital cash client receives the digital certificate that the block chain sends, by the credible performing environment
Digital certificate mount request is sent to the safety chip；
The safety chip installs digital certificate according to the digital certificate mount request.
2. method according to claim 1, it is characterised in that the safety chip generates key according to the customer information
Pair and digital cash wallet address, including：
The safety chip generates private key according to the customer information, and generates public key using the private key；
The public key process using hash algorithm and obtains public key Hash, and digital cash is generated according to the public key Hash
Wallet address.
3. method according to claim 2, it is characterised in that install after digital certificate, also include：
Transaction data original text is utilized predetermined Hash algorithm meter by sender's digital cash client under the credible performing environment
Calculation obtains summary info, and sender's private key is obtained from the safety chip；
Described sender digital cash client is under the credible performing environment by the summary info and described sender
Private key, digital signature is generated using AES, and the digital signature and the transaction data original text is sent to described
In block chain.
4. method according to claim 3, it is characterised in that when recipient's digital cash client is from the block chain
Obtain after the digital signature and the transaction data original text, also include：
The transaction data original text is utilized the predetermined Kazakhstan by recipient's digital cash client under the credible performing environment
Uncommon algorithm is calculated the first summary info；
Recipient's digital cash client under the credible performing environment according to sender's public key, using decipherment algorithm pair
The digital signature is decrypted and obtains the second summary info；
It is traded when first summary info is consistent with second summary info.
5. the method according to claim any one of 1-4, it is characterised in that when the digital cash client be in it is offline
When under state, also include：
Sender's digital cash client is traded data message certification and data check under the credible performing environment
Afterwards transaction application is sent to recipient's digital cash client；
Recipient's digital cash client is received under the credible performing environment and examined after the transaction is applied to institute
State sender's digital cash client and return to confirmation, and update transaction record；
Described sender digital cash client updates transaction record under the credible performing environment；
Described sender digital cash client and recipient's digital cash client when network state meets condition to
The synchronous transaction record of the block chain, makes the block chain and corresponding the third-party server synchronously transaction record.
6. method according to claim 5, it is characterised in that the download of the digital cash client includes：
The preset digital cash client executable is installed or by download online number in the safety chip
Word currency client executable is installed.
7. the system that a kind of use is based on the digital cash of block chain, it is characterised in that including：
Digital cash client, the request for sending application digital certificate to block chain makes the block chain be asked according to
Asking carries out user identity and requests verification and returns to corresponding customer information to the digital cash client after being verified；
According to the customer information, applying digital certificate is sent to safety chip by credible performing environment；Sent to the block chain
The digital cash wallet address, makes the block chain obtain numeral card from authentication center according to the digital cash wallet address
Book；After receiving the digital certificate that the block chain sends, sent to the safety chip by the credible performing environment
Digital certificate mount request；
The safety chip module, for generating key pair and digital cash wallet address according to the customer information, and leads to
Cross the credible performing environment and export the digital cash wallet address to the digital cash client；According to the numeral card
Book mount request installs digital certificate；
The credible performing environment module, for providing credible performing environment.
8. system according to claim 7, it is characterised in that the digital cash client also includes：
Transaction transmitting element, for calculating transaction data original text using predetermined Hash algorithm under the credible performing environment
To summary info, and sender's private key is obtained from the safety chip；By the summary info and described sender private key,
Digital signature is generated using AES, and the digital signature and the transaction data original text are sent to the block chain
In；
Transaction acceptance unit, for calculating the transaction data original text using the predetermined Hash under the credible performing environment
Method is calculated the first summary info；According to sender's public key, the digital signature is decrypted using decipherment algorithm is obtained
Second summary info；It is traded when first summary info is consistent with second summary info.
9. the system according to claim 7 or 8, it is characterised in that the digital cash client also includes：
Off-line trading transmitting element, for being traded data message certification and data check under the credible performing environment
Afterwards transaction application is sent to recipient's digital cash client；And credible held described in recipient's digital cash client
After the transaction application is received and examined under row environment, receive recipient's digital cash client and return to confirmation, and
Update transaction record；
Off-line trading synchronization unit, for when digital cash client when network state meets condition to the block chain synchronization
The transaction record, makes the block chain and corresponding the third-party server synchronously transaction record.
10. a kind of terminal, it is characterised in that including：
Digital cash client end processor, for block chain send application digital certificate request, make the block chain according to
The request carries out user identity and requests verification and returns to corresponding visitor to the digital cash client after being verified
Family information；According to the customer information, applying digital certificate is sent to safety chip by credible performing environment；To the block
Chain sends the digital cash wallet address, the block chain is obtained from authentication center according to the digital cash wallet address
Digital certificate；After receiving the digital certificate that the block chain sends, by the credible performing environment to the safe core
Piece sends digital certificate mount request；
The safety chip, for generating key pair and digital cash wallet address according to the customer information, and by institute
State credible performing environment and export the digital cash wallet address to the digital cash client；Pacified according to the digital certificate
Digital certificate is installed in dress request；
The credible performing environment processor, for providing credible performing environment.
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| CN201710056081.0A CN106850200B (en) | 2017-01-25 | 2017-01-25 | A kind of safety method, system and the terminal of digital cash of the use based on block chain |
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|---|---|---|---|
| CN201710056081.0A CN106850200B (en) | 2017-01-25 | 2017-01-25 | A kind of safety method, system and the terminal of digital cash of the use based on block chain |
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| Publication Number | Publication Date |
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| CN106850200A true CN106850200A (en) | 2017-06-13 |
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