CN111901096A - Block chain-based electronic data credible evidence-storing evaluation method - Google Patents
Block chain-based electronic data credible evidence-storing evaluation method Download PDFInfo
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- CN111901096A CN111901096A CN202010734925.4A CN202010734925A CN111901096A CN 111901096 A CN111901096 A CN 111901096A CN 202010734925 A CN202010734925 A CN 202010734925A CN 111901096 A CN111901096 A CN 111901096A
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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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
- G06V40/171—Local features and components; Facial parts ; Occluding parts, e.g. glasses; Geometrical relationships
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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
- H04L63/0442—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 asymmetric encryption, i.e. different keys for encryption and decryption
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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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0861—Network architectures or network communication protocols for network security for authentication of entities using biometrical features, e.g. fingerprint, retina-scan
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- 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
- H04L9/3226—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 a predetermined code, e.g. password, passphrase or PIN
- H04L9/3231—Biological data, e.g. fingerprint, voice or retina
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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
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
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Abstract
The invention discloses an electronic data credible evidence storage evaluation method based on a block chain, which comprises the following steps: the method comprises the following steps: processing single electronic data, processing the electronic data snapshot, obtaining an original hash value of the electronic data snapshot by using an SHA-256 algorithm, uploading a secret hash value of the electronic data snapshot, which is obtained by encrypting the original hash value, to a block chain, and obtaining a feedback txid from the block chain; step two: after the electronic data snapshot is processed and uploaded into the block chain, a public key generated in the encryption process is sent to the user intelligent mobile terminal; step three: when a user needs to call electronic data, the user needs to firstly carry out identity authentication through a comparison terminal. The invention has better safety, can effectively avoid data leakage and data tampering, meets various use requirements of users, and is more worthy of popularization and use.
Description
Technical Field
The invention relates to the field of block chains, in particular to an electronic data credible evidence storage evaluation method based on a block chain.
Background
Electronic data refers to objective data including characters, graphic symbols, numbers, letters and the like formed based on electronic technical means such as computer application, communication and modern management technology. Electronic data is stored, processed and transmitted in a digital form, can prove the fact of a case, and a credible evidence evaluation method is required to be used when credible evidence evaluation of the electronic data is carried out, and a block chain is a term in the technical field of information. In essence, the system is a shared database, and the data or information stored in the shared database has the characteristics of 'unforgeability', 'whole-course trace', 'traceability', 'public transparency', 'collective maintenance', and the like. Based on the characteristics, the block chain technology lays a solid 'trust' foundation, creates a reliable 'cooperation' mechanism and has wide application prospect.
The existing electronic data credible evidence evaluation method is poor in data security, easily causes data leakage, and cannot trace source violating persons after data leakage and tampering occur, so that the block chain-based electronic data credible evidence evaluation method is provided.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to solve the problems that the existing electronic data credible evidence-storing assessment method is poor in data security, data leakage is easy to cause, and tracing violating persons cannot be carried out after data leakage and tampering occur, and the block chain-based electronic data credible evidence-storing assessment method is provided.
The invention solves the technical problems through the following technical scheme, and the invention comprises the following steps:
the method comprises the following steps: processing single electronic data, processing the electronic data snapshot, obtaining an original hash value of the electronic data snapshot by using an SHA-256 algorithm, uploading a secret hash value of the electronic data snapshot, which is obtained by encrypting the original hash value, to a block chain, and obtaining a feedback txid from the block chain;
step two: after the electronic data snapshot is processed and uploaded into the block chain, a public key generated in the encryption process is sent to the user intelligent mobile terminal;
step three: when a user needs to call electronic data, the user needs to firstly carry out identity authentication through a comparison terminal;
step four: after the identity authentication is passed, the user uploads the electronic key received by the intelligent mobile terminal, so that an electronic data snapshot in the block link is called, and the electronic data is quickly sent to the intelligent mobile equipment of the user;
step five: scanning the electronic data snapshot displayed on the user intelligent mobile equipment by a camera of the comparison terminal, and comparing the electronic data snapshot displayed by the comparison terminal user with the source electronic data;
step six: the comparison shows that the electronic data is credible when passing, and the comparison shows that the electronic data is not credible when not passing.
Preferably, the specific process of performing identity authentication in step three is as follows:
the method comprises the following steps: the verification base number of the visitor is allowed to be prestored in an external cloud;
step two: a camera of a comparison terminal collects and extracts face photos of a data user, and simultaneously extracts three face photos;
step three: performing definition analysis on the three face photos, and extracting a face photo with the highest definition as a verification photo;
step four: marking two external eye corners of the human face in the verification photo as a point P1 and a point P2, marking two mouth corners of the human face in the verification photo as a point P3 and a point P4, wherein the point P1 and the point P3 are on the same side;
step five: connecting a point P1 with a point P2 to obtain a line segment l1, connecting a point P1 with a point P3 to obtain a line segment l2, connecting a point P3 with a point P4 to obtain a line segment l3, and connecting a point P4 with a point P2 to obtain a line segment l 4;
step six: a line segment l1, l2, l3 and l4 form a trapezoid, and a line segment l5 perpendicular to l3 is made by taking the midpoint of the line segment l1 as an endpoint;
step seven: the length of l1, l3 and l5 were measured and expressed by the formula (l1+ l3) × l5/2 ═ SLadder with adjustable heightTo obtain a trapezoidal area SLadder with adjustable height，SLadder with adjustable heightNamely the real-time verification coefficient;
step eight: when S isLadder with adjustable heightThe verification is passed when the verification base number of the allowed visitor is prestored in any block chain.
Preferably, the scanning contrast process in the step five is as follows:
the method comprises the following steps: extracting electronic data snapshots prestored in a block chain;
step two: the scanning verification area in the electronic data snapshot pre-stored in the block chain is a rectangle, the length and the width of the rectangle are measured to obtain K1 and K2, and the area K of the rectangle is obtained through K1 × K2Noodle；
Step three: extracting the scanning verification area of the electronic snapshot in the user intelligent mobile terminal scanned in real time, measuring the length and the width of the scanning verification area to obtain P1 and P1, and obtaining the rectangular area P2 through P1 × P2Noodle；
Step four: by the formula KNoodle/P2Noodle＝KpRatio ofObtaining the area ratio when KpRatio ofWhen the preset ratio is the same, and the encryption number verification passes, the user can extract corresponding electronic data.
Compared with the prior art, the invention has the following advantages: this electronic data credible deposit card evaluation method based on block chain, can carry out authentication to it when the user calls electronic data and carries out credible deposit card evaluation, and the identity information when storing the verification, when taking place data leakage, made things convenient for the user to trace to the source and found, accurate location to data reveal the people and attempt to steal the people of data, thereby the effectual security that promotes this method, simultaneously through carrying out encryption processing to exclusive encryption serial number, further promoted the security of this method, the effectual unexpected emergence that leads to by the tamper that prevents data from being revealed.
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FIG. 1 is a block flow diagram of the present invention.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
As shown in fig. 1, the present embodiment provides a technical solution: an electronic data credible evidence storage evaluation method based on a block chain comprises the following steps:
the method comprises the following steps: processing single electronic data, processing the electronic data snapshot, obtaining an original hash value of the electronic data snapshot by using an SHA-256 algorithm, uploading a secret hash value of the electronic data snapshot, which is obtained by encrypting the original hash value, to a block chain, and obtaining a feedback txid from the block chain;
step two: after the electronic data snapshot is processed and uploaded into the block chain, a public key generated in the encryption process is sent to the user intelligent mobile terminal;
step three: when a user needs to call electronic data, the user needs to firstly carry out identity authentication through a comparison terminal;
step four: after the identity authentication is passed, the user uploads the electronic key received by the intelligent mobile terminal, so that an electronic data snapshot in the block link is called, and the electronic data is quickly sent to the intelligent mobile equipment of the user;
step five: scanning the electronic data snapshot displayed on the user intelligent mobile equipment by a camera of the comparison terminal, and comparing the electronic data snapshot displayed by the comparison terminal user with the source electronic data;
step six: the comparison shows that the electronic data is credible when passing, and the comparison shows that the electronic data is not credible when not passing.
The specific process of identity authentication in the third step is as follows:
the method comprises the following steps: the verification base number of the visitor is allowed to be prestored in an external cloud;
step two: a camera of a comparison terminal collects and extracts face photos of a data user, and simultaneously extracts three face photos;
step three: performing definition analysis on the three face photos, and extracting a face photo with the highest definition as a verification photo;
step four: marking two external eye corners of the human face in the verification photo as a point P1 and a point P2, marking two mouth corners of the human face in the verification photo as a point P3 and a point P4, wherein the point P1 and the point P3 are on the same side;
step five: connecting a point P1 with a point P2 to obtain a line segment l1, connecting a point P1 with a point P3 to obtain a line segment l2, connecting a point P3 with a point P4 to obtain a line segment l3, and connecting a point P4 with a point P2 to obtain a line segment l 4;
step six: a line segment l1, l2, l3 and l4 form a trapezoid, and a line segment l5 perpendicular to l3 is made by taking the midpoint of the line segment l1 as an endpoint;
step seven: the length of l1, l3 and l5 were measured and expressed by the formula (l1+ l3) × l5/2 ═ SLadder with adjustable heightTo obtain a trapezoidal area SLadder with adjustable height，SLadder with adjustable heightNamely the real-time verification coefficient;
step eight: when S isLadder with adjustable heightThe verification is passed when the verification base number of the allowed visitor is prestored in any block chain.
The scanning contrast process in the step five is as follows:
the method comprises the following steps: extracting electronic data snapshots prestored in a block chain;
step two: the scanning verification area in the electronic data snapshot pre-stored in the block chain is a rectangle, the length and the width of the rectangle are measured to obtain K1 and K2, and the area K of the rectangle is obtained through K1 × K2Noodle；
Step three: extracting the scanning verification area of the electronic snapshot in the user intelligent mobile terminal scanned in real time, measuring the length and the width of the scanning verification area to obtain P1 and P1, and obtaining the rectangular area P2 through P1 × P2Noodle；
Step four: by the formula KNoodle/P2Noodle＝KpRatio ofObtaining the area ratio when KpRatio ofWhen the preset ratio is the same, and the encryption number verification passes, the user can extract corresponding electronic data.
In summary, when the invention is used, a single electronic data is processed, the electronic data snapshot obtains an original hash value by using the SHA-256 algorithm, the secret hash value of the electronic data snapshot, which is obtained by encrypting the original hash value, is uploaded to the block chain, and the feedback txid is obtained from the block chain; after the electronic data snapshot is processed and uploaded into the block chain, a public key generated in the encryption process is sent to the user intelligent mobile terminal; when a user needs to call electronic data, the user needs to firstly carry out identity authentication through a comparison terminal; after the identity authentication is passed, the user uploads the electronic key received by the intelligent mobile terminal, so that an electronic data snapshot in the block link is called, and the electronic data is quickly sent to the intelligent mobile equipment of the user; scanning the electronic data snapshot displayed on the user intelligent mobile equipment by a camera of the comparison terminal, and comparing the electronic data snapshot displayed by the comparison terminal user with the source electronic data; the contrast is through showing that electronic data deposits the card credibility promptly, the contrast is not through showing that electronic data deposits the card incredible promptly, the user calls and can carry out authentication to it when electronic data carries out credible deposit card aassessment, and store the identity information when verifying, when taking place data leakage, it finds to have made things convenient for the user to trace to source, accurate location is to data leakage people and the people that attempts to steal data, thereby the effectual security that promotes the method, simultaneously through carrying out encryption processing to exclusive encryption serial number, further promote the security of this method, the effectual unexpected emergence that prevents that data from being revealed and falsify and lead to.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (4)
1. An electronic data credible evidence storage evaluation method based on a block chain is characterized by comprising the following steps:
the method comprises the following steps: processing single electronic data, processing the electronic data snapshot, obtaining an original hash value of the electronic data snapshot by using an SHA-256 algorithm, uploading a secret hash value of the electronic data snapshot, which is obtained by encrypting the original hash value, to a block chain, and obtaining a feedback txid from the block chain;
step two: after the electronic data snapshot is processed and uploaded into the block chain, a public key generated in the encryption process is sent to the user intelligent mobile terminal;
step three: when a user needs to call electronic data, the user needs to firstly carry out identity authentication through a comparison terminal;
step four: after the identity authentication is passed, the user uploads the electronic key received by the intelligent mobile terminal, so that an electronic data snapshot in the block link is called, and the electronic data is quickly sent to the intelligent mobile equipment of the user;
step five: scanning the electronic data snapshot displayed on the user intelligent mobile equipment by a camera of the comparison terminal, and comparing the electronic data snapshot displayed by the comparison terminal user with the source electronic data;
step six: the comparison shows that the electronic data is credible when passing, and the comparison shows that the electronic data is not credible when not passing.
2. The block chain-based electronic data credible evidence evaluation method of claim 1, wherein: and the electronic data snapshot sent to the intelligent mobile terminal of the user in the step two is reduced by a preset proportion.
3. The block chain-based electronic data credible evidence evaluation method of claim 1, wherein: the specific process of identity authentication in the third step is as follows:
the method comprises the following steps: the verification base number of the visitor is allowed to be prestored in an external cloud;
step two: a camera of a comparison terminal collects and extracts face photos of a data user, and simultaneously extracts three face photos;
step three: performing definition analysis on the three face photos, and extracting a face photo with the highest definition as a verification photo;
step four: marking two external eye corners of the human face in the verification photo as a point P1 and a point P2, marking two mouth corners of the human face in the verification photo as a point P3 and a point P4, wherein the point P1 and the point P3 are on the same side;
step five: connecting a point P1 with a point P2 to obtain a line segment l1, connecting a point P1 with a point P3 to obtain a line segment l2, connecting a point P3 with a point P4 to obtain a line segment l3, and connecting a point P4 with a point P2 to obtain a line segment l 4;
step six: a line segment l1, l2, l3 and l4 form a trapezoid, and a line segment l5 perpendicular to l3 is made by taking the midpoint of the line segment l1 as an endpoint;
step seven: the length of l1, l3 and l5 were measured and expressed by the formula (l1+ l3) × l5/2 ═ SLadder with adjustable heightTo obtain a trapezoidal area SLadder with adjustable height，SLadder with adjustable heightNamely the real-time verification coefficient;
step eight:when S isLadder with adjustable heightThe verification is passed when the verification base number of the allowed visitor is prestored in any block chain.
4. The block chain-based electronic data credible evidence evaluation method of claim 1, wherein: the scanning contrast process in the step five is as follows:
the method comprises the following steps: extracting electronic data snapshots prestored in a block chain;
step two: the scanning verification area in the electronic data snapshot pre-stored in the block chain is a rectangle, the length and the width of the rectangle are measured to obtain K1 and K2, and the area K of the rectangle is obtained through K1 × K2Noodle；
Step three: extracting the scanning verification area of the electronic snapshot in the user intelligent mobile terminal scanned in real time, measuring the length and the width of the scanning verification area to obtain P1 and P1, and obtaining the rectangular area P2 through P1 × P2Noodle；
Step four: by the formula KNoodle/P2Noodle＝KpRatio ofObtaining the area ratio when KpRatio ofWhen the preset ratio is the same, and the encryption number verification passes, the user can extract corresponding electronic data.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113095828A (en) * | 2021-04-27 | 2021-07-09 | 支付宝(杭州)信息技术有限公司 | Data evidence storage method and device based on block chain |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113095828A (en) * | 2021-04-27 | 2021-07-09 | 支付宝(杭州)信息技术有限公司 | Data evidence storage method and device based on block chain |
| CN113095828B (en) * | 2021-04-27 | 2023-09-01 | 支付宝(杭州)信息技术有限公司 | Data storage method and device based on blockchain |
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