CN109150550A - A kind of electronic data dynamic hash chain common recognition storage system and method - Google Patents
A kind of electronic data dynamic hash chain common recognition storage system and method Download PDFInfo
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- CN109150550A CN109150550A CN201811286500.0A CN201811286500A CN109150550A CN 109150550 A CN109150550 A CN 109150550A CN 201811286500 A CN201811286500 A CN 201811286500A CN 109150550 A CN109150550 A CN 109150550A
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- Prior art keywords
- common recognition
- electronic data
- evidence
- node
- data
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network 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
- H04L63/0457—Network 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 wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
-
- 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
- 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
- H04L9/3297—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 time stamps, e.g. generation of time stamps
Abstract
The invention discloses a kind of electronic data dynamic hash chain common recognition storage system and methods, including multiple common recognition nodes and common recognition network.Electronic data cryptographic Hash and Audit data cryptographic Hash that each file to be collected evidence generates are carried out dynamic chain type record when treating apparatus for obtaining evidence and being collected evidence by the multiple evidence obtaining server；The cryptographic Hash of the dynamic chain type record authorizes trusted timestamp as uplink communications by the trusted timestamp service centre；The multiple evidence obtaining server deposits card node, access card node transmission uplink communications to described by the common recognition network；Described each deposit card node, access card node reaches cochain according to system convention to the uplink communications and know together and store, the cochain know together with the uplink communications generated data packet and store to the multiple evidence obtaining server.Card is deposited in many ways by depositing the progress of card method by dynamic hash chain, guarantees the authenticity, integrality, legitimacy of electronic data.
Description
Technical field
The present invention relates to electronic data evidence obtaining technical fields, deposit more particularly to a kind of electronic data dynamic hash chain common recognition
Storage system and method.
Background technique
The form of expression of evidence is more and more converted to electricity from original traditional documented evidence, material evidence for current judicial evidence collection
Sub- evidence.But because the properties such as to be easily lost, distort not easy to maintain for electronic evidence, so proposed from country to place at present, by
The third party legal entity for obtaining related qualification carries out depositing card.And the third-party institution deposit card often can with dispute, such as:
Not enough authority, the problems such as effect is insufficient, legal risk.Have the existing of qualified tripartite mechanism and deposits card mode only for electron number
The form backed up accordingly is stored on the server of oneself mechanism or lease.There is backup server damage or server quilt
Some cases, the electronic data such as artificial invasion are easily broken.When there is above-mentioned fortuitous event, electronic data is likely to be given up
It abandons, can not adopt when testifying.And to may cause flaw, breakpoint, evidence during transmission imperfect etc. for electronic data
Failure.It is existing to deposit card mode, it has no idea effectively to evade the data of receiving, in legal practice, single or part
Electronic evidence be not enough to support the judgement of entire case.The legal effect of evidence is easy to be queried.Once query can all need
After wanting the evidence obtaining of the mechanisms such as related judicial expertise, notarization, identification, providing related proof could be approved.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides a kind of electronic data dynamic hash chain common recognition storage systems
And method guarantees the authenticity, integrality, legitimacy of electronic data by depositing card in many ways.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of electronic data dynamic hash chain common recognition storage system, including multiple common recognition nodes and common recognition network, it is described total
Know node and common recognition network passes through ca authentication, the multiple common recognition node is connected to the network by the common recognition；Wherein, described total
Know node to include an evidence obtaining node, only deposit card node, access card node.
As optimization, described evidence obtaining node and access card node include terminal, gateway node, evidence obtaining server, institute
It states terminal to connect by the gateway node with the evidence obtaining server, the evidence obtaining server and the common recognition are connected to the network.
As optimization, the evidence obtaining server is provided with data accountability system.
A kind of electronic data dynamic hash chain common recognition storage method of the present invention, specific step is as follows for this method:
(1) electricity that the multiple evidence obtaining server generates each file to be collected evidence when treating apparatus for obtaining evidence and being collected evidence
The Audit data cryptographic Hash that subdata cryptographic Hash and electronic data generating process generate carries out dynamic chain type record；
(2) cryptographic Hash of dynamic chain type record by the trusted timestamp service centre authorize trusted timestamp at
For uplink communications；
(3) the multiple evidence obtaining server deposits card node, access card node transmission to described by the common recognition network
Uplink communications；
(4) card node, access card node are deposited to reach cochain according to system convention to the uplink communications total for described each
Know and stored, cochain common recognition is then fed back into the multiple evidence obtaining server, the cochain common recognition is believed with the cochain
Breath generated data packet is simultaneously stored to the evidence obtaining server；
(5) by the data packet, the file to be collected evidence, the electronic data cryptographic Hash of the file to be collected evidence, the electricity
The Audit data cryptographic Hash of Audit data, electronic data generating process generation that subdata generating process generates is supplied to inspection
The department of looking into is tried.
Specific steps as optimization, in the step (2) are as follows:
2.1) the cryptographic Hash record of the dynamic chain type is sent to the trusted timestamp service by the evidence obtaining server
Center；
2.2) the trusted timestamp service centre authorizes trusted timestamp to the cryptographic Hash record of the dynamic chain type, so
After be sent to the evidence obtaining server.
Dynamic chain type recording process as optimization, in the step (1) are as follows:
1.1) data for reading first file, generate electronic data and Audit data cryptographic Hash, are denoted as a1And it is stored in
In the evidence obtaining server；
1.2) data for reading second file, generate electronic data and Audit data cryptographic Hash, are denoted as a2And it is stored in
Store a1Next storage unit；
1.3) and so on, the data until reading n-th of file generate electronic data and Audit data cryptographic Hash, note
For anAnd it is stored in storage an-1Next storage unit, wherein n be the last one evidence obtaining file；
1.4) dynamic chain type record: a is formed1*a2*······*an。
The beneficial effects of the present invention are:
1. depositing the progress of card method by dynamic hash chain deposits card in many ways, guarantee the authenticity of electronic data, integrality, legal
Property.
2. each evidence obtaining node of chain that dynamic hash chain deposits the generation of card method has a dynamic chain type record, data safety,
It is anti-tamper, confidence level is enhanced, and each evidence obtaining node can obtain directly from the node of its O&M and verify data.
3. forensics process is optimized, likelihood of failure caused by guaranteeing electronic data during transmission is dropped to most
It is low.
Detailed description of the invention
Fig. 1 is the flow chart of a kind of electronic data dynamic hash chain common recognition storage system and method for the present invention；
Fig. 2 is the system composition of a kind of electronic data dynamic hash chain common recognition storage system and method for the present invention
Figure；
Fig. 3 is the example flow of a kind of electronic data dynamic hash chain common recognition storage system and method for the present invention
Figure.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
The storage system as shown in figure 3, a kind of electronic data dynamic hash chain is known together, including multiple common recognition nodes and common recognition net
Network, common recognition node and common recognition network pass through ca authentication, and multiple common recognition nodes pass through common recognition network connection；Wherein, common recognition node
Including node of only collecting evidence, only deposit card node, access card node.
Only evidence obtaining node only carries out evidence obtaining operation, such as public security bureau etc. to apparatus for obtaining evidence；
It only deposits card node only to store evidence, such as notary organization, auditing bodies, arbitration organ etc.；
Access card node is that can both collect evidence to evidence, can also be stored to evidence, such as third party's administration of justice mirror
Determine mechanism.
In the present embodiment, only collect evidence node and access card node include terminal, gateway node, evidence obtaining server, evidence obtaining
Server is provided with data accountability system, and terminal is connect by gateway node with evidence obtaining server, evidence obtaining server and common recognition net
Network, the connection of trusted timestamp service centre.
Terminal is user terminal or is mobile terminal, and evidence obtaining server is provided with data accountability system, when evidence obtaining server
When treating apparatus for obtaining evidence and carrying out evidence obtaining operation, electronic data can generate corresponding Audit data Mobile state chained record of going forward side by side and deposit
Storage, trusted timestamp service centre can record the dynamic chain type of evidence obtaining server and authorize trusted timestamp.In trusted timestamp
Under the guarantee of service centre and ca authentication mechanism, common recognition network, which has, is based on electronic data objectivity.
As shown in Figs. 1-2, a kind of electronic data dynamic hash chain common recognition storage method, comprising the following steps:
(1) electron number that multiple evidence obtaining servers generate each file to be collected evidence when treating apparatus for obtaining evidence and being collected evidence
Dynamic chain type record is carried out according to the Audit data cryptographic Hash that cryptographic Hash and electronic data generating process generate；
1.1) data for reading first file, generate electronic data and Audit data cryptographic Hash, are denoted as a1And it is stored in
In evidence obtaining server；
1.2) data for reading second file, generate electronic data and Audit data cryptographic Hash, are denoted as a2And it is stored in
Store a1Next storage unit；
1.3) and so on, the data until reading n-th of file generate electronic data and Audit data cryptographic Hash, note
For anAnd it is stored in storage an-1Next storage unit, wherein n be the last one evidence obtaining file；
1.4) dynamic chain type record: a is formed1*a2*······*an, it is denoted as A.
The dynamic chain type of other evidence obtaining servers is denoted as B, C, D.
(2) cryptographic Hash of dynamic chain type record is authorized trusted timestamp by trusted timestamp service centre and is believed as cochain
Breath；
2.1) cryptographic Hash Aa, Bb, Cc, Dd that dynamic chain type records are sent in trusted timestamp service by evidence obtaining server
The heart；
2.2) trusted timestamp service centre authorizes trusted time to cryptographic Hash Aa, Bb, Cc, Dd that dynamic chain type records
Stamp, the dynamic chain type after authorizing trusted timestamp are denoted as Aa ', Bb ', Cc ', Dd ', then pass to evidence obtaining server.
(3) evidence obtaining server by common recognition network to only deposit card node, access card node send uplink communications；
(4) each deposit card node, access card node reaches cochain according to system convention to uplink communications and knows together and carry out
Then cochain common recognition is fed back to evidence obtaining server by storage, cochain common recognition and uplink communications generated data packet are simultaneously stored to multiple
Evidence obtaining server；
(5) data packet, file to be collected evidence, the electronic data cryptographic Hash of file to be collected evidence, electronic data generating process are produced
The Audit data cryptographic Hash of raw Audit data, the generation of electronic data generating process is supplied to controlling unit and is tried.
Different system conventions can be defined according to different situations, each is deposited card node, access card node according to receiving
The chronological order of different uplink communications or according to significance level of different uplink communications etc. rule to uplink communications
It is ranked up, then ranking results is compared, according to majority rule, final ranking results are stored as
Chain knows together and is sent to each evidence obtaining server.Cochain is known together and is stored with uplink communications generated data packet to taking by evidence obtaining server
In the storage device for demonstrate,proving server.For example, depositing card node at all, accessing in card node, to Aa ', Bb ', Cc ', Dd ' 4
Uplink communications are ranked up, and having 80% ranking results is (Aa ' Bb ' Cc ' Dd '), there is 10% ranking results (Dd ' Cc ' Bb '
Aa '), having 10% ranking results is (Aa ' Dd ' Bb ' Cc '), then, it is final to deposit (Aa ' Bb ' Cc ' Dd ') as cochain common recognition
Enter each deposit card node, access in card node and feed back to each evidence obtaining server, synthesizes the data of each evidence obtaining server
Wrap (Aa ' Bb ' Cc ' Dd ') Aa ', (Aa ' Bb ' Cc ' Dd ') Bb ', (Aa ' Bb ' Cc ' Dd ') Cc ', (Aa ' Bb ' Cc ' Dd ') Dd '.
Wherein, A, B, C, D are respectively the dynamic chain type record of each evidence obtaining server；Aa, Bb, Cc, Dd are respectively each
The cryptographic Hash that the dynamic chain type of server of collecting evidence records；Aa ', Bb ', Cc ', Dd ' are that dynamic chain type records corresponding uplink communications；
anFor the electronic data of each file of forensic data and the cryptographic Hash of Audit data.
System convention is not limited to be ranked up uplink communications under majority rule, can also there is other systems
Rule.
The working principle of the invention: controlling unit (such as law court, procuratorate), can be to more in the authenticity of experimental evidence
Card node is deposited for a to be examined with the cochain common recognition for accessing card node.When the data quilt for some evidence that controlling unit receives
It distorts, the cryptographic Hash for being tampered evidence can change therewith, can not match with cochain common recognition in this way, evidence is invalid, resubmits card
According to.Due to file electronic data and Audit data generate cryptographic Hash process be it is irreversible, ensure that file initial data
Authenticity.
Finally, it should be noted that those skilled in the art various changes and modifications can be made to the invention without departing from
The spirit and scope of the present invention.In this way, if these modifications and changes of the present invention belongs to the claims in the present invention and its waits system
Within the scope of counting, then the present invention is also intended to encompass these modification and variations.
Claims (7)
- The storage system 1. a kind of electronic data dynamic hash chain is known together, which is characterized in that including multiple common recognition nodes and common recognition net Network, the common recognition node and common recognition network pass through ca authentication, and the multiple common recognition node is connected to the network by the common recognition；Its In, the common recognition node includes an evidence obtaining node, only deposits card node, access card node.
- The storage system 2. a kind of electronic data dynamic hash chain according to claim 1 is known together, which is characterized in that described Evidence obtaining node and access card node include terminal, gateway node, evidence obtaining server, the terminal by the gateway node with The evidence obtaining server connection, the evidence obtaining server and the common recognition are connected to the network.
- The storage system 3. a kind of electronic data dynamic hash chain according to claim 2 is known together, which is characterized in that described to take Card server is also connect with trusted timestamp service centre.
- The storage system 4. a kind of electronic data dynamic hash chain according to claim 2 is known together, which is characterized in that described to take Card server is provided with data accountability system.
- The storage method 5. a kind of electronic data dynamic hash chain is known together, which comprises the following steps:(1) multiple evidence obtaining servers breathe out the electronic data that each file to be collected evidence generates when treating apparatus for obtaining evidence and being collected evidence The Audit data cryptographic Hash that uncommon value and electronic data generating process generate carries out dynamic chain type record；(2) cryptographic Hash of the dynamic chain type record, which authorizes trusted timestamp by the trusted timestamp service centre, becomes upper Chain information；(3) the multiple evidence obtaining server deposits card node, access card node transmission cochain to described by the common recognition network Information；(4) described each deposit card node, access card node to the uplink communications according to system convention reach cochain common recognition simultaneously It is stored, cochain common recognition is then fed back into the multiple evidence obtaining server, the cochain common recognition is closed with the uplink communications At data packet and store to the multiple evidence obtaining server；(5) by the data packet, the file to be collected evidence, the electronic data cryptographic Hash of the file to be collected evidence, the electron number The Audit data cryptographic Hash of the Audit data, electronic data generating process generation that generate according to generating process is supplied to inspection portion Door is tried.
- The storage method 6. a kind of electronic data dynamic hash chain according to claim 5 is known together, which is characterized in that the step Suddenly the specific steps in (2) are as follows:2.1) cryptographic Hash that the dynamic chain type records is sent to the trusted timestamp service centre by the evidence obtaining server；2.2) cryptographic Hash that the trusted timestamp service centre records the dynamic chain type authorizes trusted timestamp, then passes It send to the evidence obtaining server.
- The storage method 7. a kind of electronic data dynamic hash chain according to claim 5 is known together, which is characterized in that the step Suddenly the dynamic chain type recording process in (1) are as follows:1.1) data for reading first file, generate electronic data and Audit data cryptographic Hash, are denoted as a1And it is stored in described take It demonstrate,proves in server；1.2) data for reading second file, generate electronic data and Audit data cryptographic Hash, are denoted as a2And it is stored in storage a1 Next storage unit；1.3) and so on, the data until reading n-th of file generate electronic data and Audit data cryptographic Hash, are denoted as anAnd It is stored in storage an-1Next storage unit, wherein n be the last one evidence obtaining file；1.4) dynamic chain type record: a is formed1*a2*······*an。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109815748A (en) * | 2019-01-24 | 2019-05-28 | 黄冈 | A kind of centre data source method for monitoring based on block chain |
| CN110099071A (en) * | 2019-05-21 | 2019-08-06 | 重庆斐耐科技有限公司 | A kind of electronic data dynamic storage method and system |
| CN110445771A (en) * | 2019-07-19 | 2019-11-12 | 平安科技（深圳）有限公司 | Intersection record evidence collecting method, device, medium and server based on block chain |
| CN111083122A (en) * | 2019-11-29 | 2020-04-28 | 武汉烽火信息集成技术有限公司 | Block chain-based electronic evidence processing method and system and storage medium |
| CN111143883A (en) * | 2019-12-31 | 2020-05-12 | 支付宝(杭州)信息技术有限公司 | Digital content evidence obtaining method, device and equipment based on block chain |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682308A (en) * | 2017-08-16 | 2018-02-09 | 北京航空航天大学 | The electronic evidence preservation system for Channel Technology of being dived based on block chain |
| CN107888375A (en) * | 2017-11-08 | 2018-04-06 | 深圳市携网科技有限公司 | A kind of electronic evidence safety system and method based on block chain technology |
-
2018
- 2018-10-31 CN CN201811286500.0A patent/CN109150550A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682308A (en) * | 2017-08-16 | 2018-02-09 | 北京航空航天大学 | The electronic evidence preservation system for Channel Technology of being dived based on block chain |
| CN107888375A (en) * | 2017-11-08 | 2018-04-06 | 深圳市携网科技有限公司 | A kind of electronic evidence safety system and method based on block chain technology |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109815748A (en) * | 2019-01-24 | 2019-05-28 | 黄冈 | A kind of centre data source method for monitoring based on block chain |
| CN110099071A (en) * | 2019-05-21 | 2019-08-06 | 重庆斐耐科技有限公司 | A kind of electronic data dynamic storage method and system |
| CN110445771A (en) * | 2019-07-19 | 2019-11-12 | 平安科技（深圳）有限公司 | Intersection record evidence collecting method, device, medium and server based on block chain |
| CN111083122A (en) * | 2019-11-29 | 2020-04-28 | 武汉烽火信息集成技术有限公司 | Block chain-based electronic evidence processing method and system and storage medium |
| CN111143883A (en) * | 2019-12-31 | 2020-05-12 | 支付宝(杭州)信息技术有限公司 | Digital content evidence obtaining method, device and equipment based on block chain |
| CN111143883B (en) * | 2019-12-31 | 2021-08-03 | 支付宝(杭州)信息技术有限公司 | Digital content evidence obtaining method, device and equipment based on block chain |
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