CN104346581A - Method and device for adding electronic seal on design diagram - Google Patents
Method and device for adding electronic seal on design diagram Download PDFInfo
- Publication number
- CN104346581A CN104346581A CN201410587263.7A CN201410587263A CN104346581A CN 104346581 A CN104346581 A CN 104346581A CN 201410587263 A CN201410587263 A CN 201410587263A CN 104346581 A CN104346581 A CN 104346581A
- Authority
- CN
- China
- Prior art keywords
- seal
- design drawing
- signature
- layer
- electronic seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
-
- 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
- H04L9/3247—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 digital signatures
Abstract
The invention discloses a method for adding an electronic seal on a design diagram. The method comprises the following steps: scanning a handwritten signature of a user, and performing vectorization processing on the signature to generate an electronic seal of the signature; uploading the electronic seal into an information system, verifying the legality of the uploaded electronic seal, and rejecting the electronic seal inconsistent with the identity of the user to pass validity verification; binding the electronic seal passing validity verification to any layer of the design diagram, extracting characteristics of a related graph entity object of the bound layer, performing 64-bit encryption encoding on the characteristics, and generating a corresponding secret key; performing electronic seal verification on the design diagram to which the electronic seal is bound, and verifying the electronic seal to be invalid when the design diagram is modified and the secret key calculated by performing encryption encoding on the bound layer according to the characteristics of the layer is inconsistent with a preset key. The method has the benefits that the design diagram is prevented from being tampered in a transfer process.
Description
Technical field
The present invention relates to the field of computer aided design of power distribution network, particularly relate to a kind of on design drawing, add E-seal method and device thereof.
Background technology
In the process designed the engineering of power distribution network in electric system, construction design drawing needs to confirm through checking signature.At present, drawing all can print by designing institute, signs after binding into book form.This way is comparatively rigorous, but a whole set of construction atlas often has 20 ~ 30 drawings, adopts the method for manual signature not only to waste time and energy, and all adopts electronization due to the management of current designed graphic document, and signing a bill by hand is unfavorable for the construction of information system.In addition, Ye You enterprise adopts unencrypted electronics title block to sign, but the security of this electronics title block is poor, is easily tampered.
Summary of the invention
Technical matters to be solved by this invention is that current Distribution system design drawing can only be confirmed by manual signature or by unencrypted electronics title block signature, waste time and energy security deficiency, provides a kind of on design drawing, add E-seal method and device thereof.
In order to solve the problems of the technologies described above, a kind of technical scheme that the present invention adopts is: a kind of method of adding E-seal on design drawing, comprises step:
Scan the handwritten signature of user and vectorized process is carried out to this signature, generating the E-seal of signature;
Described E-seal being uploaded in infosystem, and the legitimacy of the E-seal uploaded is verified, refusing the E-seal by not conforming to user identity;
Use and bound by the E-seal of legitimate verification and any layer of design drawing, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key;
The checking of E-seal is carried out to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
The another kind of technical scheme that the present invention adopts is: a kind of device adding E-seal on design drawing, comprising:
E-seal generation module, for scanning the handwritten signature of user and carrying out vectorized process to this signature, generates the E-seal of signature;
E-seal first authentication module, for being uploaded in infosystem by described E-seal, and verifies the legitimacy of the E-seal uploaded, and refuses the E-seal by not conforming to user identity;
E-seal binding module, bound by the E-seal of legitimate verification and any layer of design drawing for using, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key;
E-seal second authentication module, for carrying out the checking of E-seal to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
Beneficial effect of the present invention is: the E-seal signature being carried out Distribution system design figure by the present invention is confirmed, the picture frame position that drawing of can automatically registering in batches is specified, and effectively can improve the efficiency of Electronic Signature; Meanwhile, the identifying procedure of E-seal that also can be perfect, the E-seal of system user can be used after need being audited by system manager, avoids mistake, false E-seal occurs in systems in which; The most important thing is, the invention enables design drawing to have higher security, the design drawing of user is after the binding of E-seal, once be tampered, system can automatically prompting user, on design drawing E-seal also can lose efficacy.
Accompanying drawing explanation
Fig. 1 is the main flow figure adding the method for E-seal on design drawing of the embodiment of the present invention.
Fig. 2 is the structured flowchart adding the device of E-seal on design drawing of the embodiment of the present invention.
Label declaration: 10, E-seal generation module; 20, E-seal first authentication module; 30, E-seal binding module; 40, E-seal second authentication module.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
The design of most critical of the present invention is: on design drawing, add E-seal and itself and layer are bound, being encrypted simultaneously to the feature of bound layer, once design drawing is tampered, corresponding layer cannot be decrypted, and therefore E-seal will lose efficacy immediately.
Refer to Fig. 1, a kind of method of adding E-seal on design drawing, comprises step:
S10, scanning user handwritten signature and vectorized process is carried out to this signature, generate signature E-seal;
S20, described E-seal being uploaded in infosystem, and the legitimacy of the E-seal uploaded is verified, refusing the E-seal by not conforming to user identity;
S30, use and bound by the E-seal of legitimate verification and any layer of design drawing, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key;
S40, the checking of E-seal is carried out to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
From foregoing description, beneficial effect of the present invention is: the E-seal signature being carried out Distribution system design figure by the present invention is confirmed, the picture frame position that drawing of can automatically registering in batches is specified, and effectively can improve the efficiency of Electronic Signature; Meanwhile, the identifying procedure of E-seal that also can be perfect, the E-seal of system user can be used after need being audited by system manager, avoids mistake, false E-seal occurs in systems in which; The most important thing is, the invention enables design drawing to have higher security, the design drawing of user is after the binding of E-seal, once be tampered, system can automatically prompting user, on design drawing E-seal also can lose efficacy.
Further, after vectorized process is carried out to signature, also step is comprised: ratio and adjustment of displacement are carried out to the vector quantization file of signature.
Seen from the above description, E-seal can be mated with the picture frame being used for placing E-seal in design drawing by above-mentioned steps.
Further, described design drawing is the drawing of dwg form, and described E-seal and design drawing are also a kind of drawing of dwg form matchingly.
Refer to Fig. 2, a kind of device adding E-seal on design drawing, comprising: E-seal generation module 10, E-seal first authentication module 20, E-seal binding module 30 and E-seal second authentication module 40.
Described E-seal generation module 10, for scanning the handwritten signature of user and carrying out vectorized process to this signature, generates the E-seal of signature.
Described E-seal first authentication module 20 for being uploaded in infosystem by described E-seal, and is verified the legitimacy of the E-seal uploaded, and refuses the E-seal by not conforming to user identity.
Described E-seal binding module 30 is bound by the E-seal of validation verification and any layer of design drawing for using, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key.
Described E-seal second authentication module 40 is for carrying out the checking of E-seal to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
Further, described E-seal generation module is also for carrying out ratio and adjustment of displacement to the vector quantization file of signature.
Further, described design drawing is the drawing of dwg form, and described E-seal and design drawing are also a kind of drawing of dwg form matchingly.
Incorporated by reference to Fig. 1 and Fig. 2, embodiments of the invention one are: a kind of device adding E-seal on design drawing, comprising: E-seal generation module 10, E-seal first authentication module 20, E-seal binding module 30 and E-seal second authentication module 40.
Described E-seal generation module 10, for scanning the handwritten signature of user and carrying out ratio and adjustment of displacement to the vector quantization file of signature after carrying out vectorized process to this signature, finally generates the E-seal of signature.
Described E-seal first authentication module 20 for being uploaded in infosystem by described E-seal, and is verified the legitimacy of the E-seal uploaded, and refuses the E-seal by not conforming to user identity.
Described E-seal binding module 30 is bound by the E-seal of legitimate verification and any layer of design drawing for using, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key.
Described E-seal second authentication module 40 is for carrying out the checking of E-seal to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
The using method of said apparatus comprises step:
The handwritten signature of S10, scanning user is also carried out vectorized process to this signature and carries out ratio and adjustment of displacement to the vector quantization file of signature after carrying out vectorized process to this signature, generates the E-seal of signature;
S20, described E-seal being sent in infosystem, by system manager, the legitimacy of the E-seal that user uploads being verified, refusing the E-seal by not conforming to user identity;
S30, use and bound by the E-seal of legitimate verification and any layer of design drawing, and extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key;
S40, the checking of E-seal is carried out to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
Design drawing in the scheme of embodiment one is generally the drawing of dwg form, and the drawing of dwg form in the art most widely used, meanwhile, E-seal and design drawing are also a kind of drawing of dwg form matchingly.The card system of being recognized by E-seal can ensure that the E-seal of user is effectively legal, and by carrying out vectorized process to signature and the vector quantization file of signature being carried out to ratio and adjustment of displacement and automatically identifies the picture frame in design drawing after carrying out vectorized process to this signature, the picture frame of E-seal and design drawing is mated with this, realize the batch signature of E-seal, signed the drawing of E-seal once be tampered, E-seal can cease to be in force automatically, thus reminding user drawing is in by the state of illegally changing.
Embodiments of the invention two are: a kind of using method of E-seal of the KXG for distribution network engineering project:
The E-seal of different user is by management system unified management, maintenance, examination & verification carry out certification;
The described E-seal instrument that user uses system to provide when auditing design drawing carries out stamped signature confirmation, and concrete stamped signature validation testing enters described in embodiment one;
Design drawing after confirmation enters circulation, if distorted by other users in circulation process, the E-seal on design drawing ceases to be in force automatically.
Above-mentioned using method carries out the authentication management of E-seal based on KXG, for designer provides safe, efficient E-seal instrument, can ensure integrality and the security of design drawing like this.
In sum, provided by the invention on design drawing, add E-seal method and device can guarantee that design drawing is not tampered in circulation process.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing instructions of the present invention and accompanying drawing content to do, or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. on design drawing, add a method for E-seal, it is characterized in that, comprise step:
Scan the handwritten signature of user and vectorized process is carried out to this signature, generating the E-seal of signature;
Described E-seal being uploaded in infosystem, and the legitimacy of the E-seal uploaded is verified, refusing the E-seal by not conforming to user identity;
Use and bound by the E-seal of legitimate verification and any layer of design drawing, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key;
The checking of E-seal is carried out to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
2. method of adding E-seal on design drawing according to claim 1, is characterized in that, after carrying out vectorized process, also comprises step to signature: carry out ratio and adjustment of displacement to the vector quantization file of signature.
3. method of adding E-seal on design drawing according to claim 1, is characterized in that, described design drawing is the drawing of dwg form, and described E-seal and design drawing are also a kind of drawing of dwg form matchingly.
4. on design drawing, add a device for E-seal, it is characterized in that, comprising:
E-seal generation module, for scanning the handwritten signature of user and carrying out vectorized process to this signature, generates the E-seal of signature;
E-seal first authentication module, for being uploaded in infosystem by described E-seal, and verifies the legitimacy of the E-seal uploaded, and refuses the E-seal by not conforming to user identity;
E-seal binding module, bound by the E-seal of legitimate verification and any layer of design drawing for using, extract the feature of the relational graph entity object of the layer after binding, 64 bit encryption codings are carried out to described feature and generates corresponding key;
E-seal second authentication module, for carrying out the checking of E-seal to the described design drawing after binding E-seal, when design drawing is modified, to bound layer to be encrypted according to layer feature the key that coding calculates inconsistent with the key preset, then E-seal is verified as inefficacy.
5. the device adding E-seal on design drawing according to claim 4, is characterized in that, described E-seal generation module is also for carrying out ratio and adjustment of displacement to the vector quantization file of signature.
6. the device adding E-seal on design drawing according to claim 4, is characterized in that, described design drawing is the drawing of dwg form, and described E-seal and design drawing are also a kind of drawing of dwg form matchingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587263.7A CN104346581A (en) | 2014-10-28 | 2014-10-28 | Method and device for adding electronic seal on design diagram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587263.7A CN104346581A (en) | 2014-10-28 | 2014-10-28 | Method and device for adding electronic seal on design diagram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104346581A true CN104346581A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410587263.7A Pending CN104346581A (en) | 2014-10-28 | 2014-10-28 | Method and device for adding electronic seal on design diagram |
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| CN (1) | CN104346581A (en) |
Cited By (3)
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| CN107344454A (en) * | 2017-07-27 | 2017-11-14 | 上海策赢网络科技有限公司 | Digital sealing generation method, service request and offer method and electronic equipment |
| WO2019154235A1 (en) * | 2018-02-07 | 2019-08-15 | 阿里巴巴集团控股有限公司 | Electronic signature implementation method and device, signing terminal, and signing server |
| CN112287370A (en) * | 2020-11-03 | 2021-01-29 | 泰州市抗震办公室（泰州市建设工程施工图设计审查中心） | CAD construction drawing review method based on domestic operating system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107344454A (en) * | 2017-07-27 | 2017-11-14 | 上海策赢网络科技有限公司 | Digital sealing generation method, service request and offer method and electronic equipment |
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| WO2019154235A1 (en) * | 2018-02-07 | 2019-08-15 | 阿里巴巴集团控股有限公司 | Electronic signature implementation method and device, signing terminal, and signing server |
| CN112287370A (en) * | 2020-11-03 | 2021-01-29 | 泰州市抗震办公室（泰州市建设工程施工图设计审查中心） | CAD construction drawing review method based on domestic operating system |
| CN112287370B (en) * | 2020-11-03 | 2023-10-17 | 泰州市抗震办公室（泰州市建设工程施工图设计审查中心） | CAD construction drawing examination method based on domestic operating system |
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Application publication date: 20150211 |
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