CN103729341A - Method and device for positioning electronic seal and device for obtaining electronic seal - Google Patents
Method and device for positioning electronic seal and device for obtaining electronic seal Download PDFInfo
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- CN103729341A CN103729341A CN201310754763.0A CN201310754763A CN103729341A CN 103729341 A CN103729341 A CN 103729341A CN 201310754763 A CN201310754763 A CN 201310754763A CN 103729341 A CN103729341 A CN 103729341A
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Abstract
The invention discloses a method and device for positioning an electronic seal and a device for obtaining the electronic seal. The method for positioning the electronic seal includes the steps that when the information that a previewed electronic seal is added is received, the previewed electronic seal is added into a template file and includes characteristic information; the previewed electronic seal is identified, a signature domain is added according to the position of the identified previewed electronic seal, and the signature domain is used for setting signature appearance and performing digital signature. The electronic seal is directly displayed and positioned at a template file client side, so that the electronic seal is accurately previewed and positioned, the problem that an editable file does not support previewed electronic seal addition is effectively solved, and meanwhile authorization management for flexibly stamping the electronic seal is provided, which help servers to execute the operation of stamping the electronic seal in batch.
Description
Technical field
The present invention relates to E-seal technical field, particularly relate to device and a kind of device of realizing E-seal of a kind of method of positioning electronic seal, a kind of positioning electronic seal.
Background technology
Electronic signature is based on international PKI(Public Key Infrastructure, Public Key Infrastructure) the online identity Verification System of standard, digital certificate is equivalent to online I.D., it carries out online identity authentication in the mode of digital signature effectively by third party's authenticating authority, help each main body identification the other side's identity and show self identity, there is authenticity and anti-repudiation function.
E-seal technology is with the advanced traditional seal in kind of digital technology simulation, its management, use-pattern meet custom and the experience of seal in kind, and its e-file of adding a cover has the outward appearance that the paper document of adding a cover with seal in kind is identical, identical validity and similar use-pattern.Present stage, E-seal was an application of electronic signature technology, and electronic signature technology has been become to the habitual signed and sealed (SS) mode of people, relatively met credit custom and credit system that people are traditional, and the application of electronic signature is had to certain value.Under the prerequisite that meets relevant laws, the use of E-seal has the legal effect identical with traditional seal.
While using E-seal, multiple electric information carrier be can adopt, intelligent code key (being called for short USB-KEY), IC-card (Integrated Circuit Card, integrated circuit card), fingerprint instrument etc. comprised.The safety practice difference of using according to protection E-seal, its level of security is also different, and implementation cost is also different.The specific practice of E-seal be by the digital signature of electronic document content by technology such as digital watermarking, encryptions, make itself and E-seal image effectively bind (as medium in the image that utilizes concealing technology that data are hidden in to E-seal).The process of the checking E-seal true and false is exactly the process of certifying digital signature in fact.Only have by electric signing verification technology and prove that the electronic document being associated with E-seal is real, E-seal image is just admitted to be effectively, otherwise E-seal can not show that can only be maybe one does not have valid picture.
PDF(Portable Document Format, portable document) be unique cross-platform file layout of Adobe company exploitation.This file layout and operating system platform are irrelevant, this means pdf document no matter be at Windows, and Unix still can be general in the Mac of Apple OS operating system.This feature makes it become the desirable document format that carries out electronic document distribution and digital information propagation on Internet.
PDF file has become the industrial standard adopting in every profession and trade Process of Information at present.A lot of companies are all that PDF has been developed E-seal product, generally need the function of E-seal to be integrated into PDF client (as Adobe Reader etc.), consider the standard disunity of E-seal, general by realizing E-seal function in the mode of client loading of plug-in.Digital signature and ways of presentation thereof in PDF standard, have been defined, wherein digital signature territory can arrange a visible signature outward appearance, utilize this characteristic can realize E-seal function, and the E-seal of design forming has versatility like this, can be identified and show by the PDF reader of main flow.Therefore, the PDF digital signature of employing standard represents E-seal becomes implementation more general in PDF document.
Determining position and the size thereof of E-seal at the page, is to add a cover very important step in the process of E-seal, and the convenience of this process, accuracy are the factors that must consider.Once after digital signature interpolation, just not allow to adjust again its position and size, therefore before adding a cover E-seal, need to carry out preview operation, after confirming, user just carries out real digital signature operation.Preview and the positioning action thereof that by the mode of loading of plug-in, can realize E-seal, possess higher precision, but need to understand the developing plug API of PDF reader, and difficulty is relatively high.In order to address this problem, can adopt the mode that covers an E-seal preview graph layer in PDF reader, carry out the location of E-seal.But, in this case can only electron gain seal and PDF show the relative position on screen between control, also need to be converted into the intrinsic coordinates of current display page in document.Bringing like this two problems, is that PDF demonstration control may not supported similar coordinate conversion on the one hand, is that the precision of location exists restriction on the other hand, tends to add a cover effect and the inconsistent situation of preview result.
Patent of invention " a kind of method for E-seal location " (application number: 200610086447.0) disclose a kind of method for E-seal location, the method of this invention, by add picture in can editing files, carry out positioning electronic seal, can be implemented as the accurate location of E-seal, and then by virtual printer, be converted to PDF and so on can not edit the layout files that maybe can only carry out very limited editing operation.But there is a significantly restriction in the method for this invention, under some occasion, pdf document can directly produce, but edit tool does not but support to add the picture for positioning electronic seal.For example, certain is based on B/S(Browser/Server, browser/server) operation system of framework, can directly generate a statistical report form, be output as PDF file, but do not support to add the picture for positioning electronic seal into it.
Summary of the invention
Based on this, be necessary for the problems referred to above, a kind of method and apparatus of positioning electronic seal is provided and realizes the device of E-seal, make its accurate location of realizing E-seal on not editable layout files and add a cover in batches E-seal operation etc.
A method for positioning electronic seal, comprises step:
When receiving preview E-seal interpolation information, preview E-seal is added in layout files, wherein said preview E-seal contains characteristic information;
Identify described preview E-seal, according to the position of the preview E-seal identifying, add signature field, described signature field is used for arranging signature outward appearance and carries out digital signature.
A device for positioning electronic seal, comprising:
Preview seal merge module, for when receiving preview E-seal interpolation information, adds preview E-seal in layout files to, and wherein said preview E-seal contains characteristic information;
Signature field merge module, for identifying described preview E-seal, adds signature field according to the position of the preview E-seal identifying, and described signature field is used for arranging signature outward appearance and carries out digital signature.
A device of realizing E-seal, comprising:
Preview seal merge module, for when receiving E-seal interpolation information, adds preview E-seal in layout files to, and wherein said preview E-seal contains characteristic information;
Signature field merge module, for identifying described preview E-seal, adds signature field according to the position of the preview E-seal identifying, and described signature field is used for arranging signature outward appearance and carries out digital signature;
Signature field outward appearance arranges module, is set to the outward appearance of described signature field for the E-seal picture obtaining from described preview E-seal;
Digital signature module, for adding digital signature data dictionary at described layout files, compute signature value completes digital signature.
The method and apparatus of above-mentioned positioning electronic seal and the device of realizing E-seal have the following advantages:
1, the present invention utilizes signature field that a visible signature outward appearance is set and realizes E-seal function, in layout files client, directly show and positioning electronic seal, so in the situation that not needing to develop plug-in unit, realized the accurate preview of E-seal and accurately located;
2, the present invention directly adds E-seal in layout files, solved in some situation can editing files edit tool do not support to add the problem for positioning electronic seal picture, make range of application more extensive;
3, the present invention is Fen Li with the operation of adding a cover E-seal by positioning electronic seal, and empowerment management pattern is more flexibly provided;
4, the present invention, on the basis of accurate positioning electronic seal, has realized server and has carried out in batches the operation of adding a cover E-seal, has greatly reduced workload.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the embodiment of the present invention one is located the method for E-seal;
Fig. 2 is another schematic flow sheet of the embodiment of the present invention one method of locating E-seal;
Fig. 3 is another schematic flow sheet of the embodiment of the present invention one method of locating E-seal;
Fig. 4 is another schematic flow sheet of the embodiment of the present invention one method of locating E-seal;
Fig. 5 is another schematic flow sheet of the embodiment of the present invention one method of locating E-seal;
Fig. 6 is another schematic flow sheet of the embodiment of the present invention one method of locating E-seal;
Fig. 7 is the structural representation of the device of the embodiment of the present invention two positioning electronic seals;
Fig. 8 is another structural representation of the device of the embodiment of the present invention two positioning electronic seals;
Fig. 9 is another structural representation of the device of the embodiment of the present invention two positioning electronic seals;
Figure 10 is the structural representation that the embodiment of the present invention three realizes the device of E-seal.
Embodiment
Below in conjunction with accompanying drawing, in the mode of embodiment, the method and apparatus to positioning electronic seal of the present invention and the embodiment that realizes the device of E-seal are described in detail.
Embodiment mono-
As shown in Figure 1, a kind of method of positioning electronic seal, comprises step:
S100, when receiving preview E-seal, add during information, preview E-seal is added in layout files, wherein said preview E-seal contains characteristic information;
S200, identify described preview E-seal;
Signature field is added in the position of the preview E-seal that S300, basis identify, and described signature field is used for arranging signature outward appearance and carries out digital signature.
In one embodiment, in step S100 layout files can be PDF and so on can not edit the file that maybe can only carry out limited editing operation, preview E-seal can be rubber-stamp, can be also annotation other pictures.
In one embodiment, the position that preview E-seal adds in layout files can be determined according to the mouse location information of obtaining, also can determine according to other input equipment positional informations of obtaining, also can add preview E-seal to predefined region etc.
In order to reach good E-seal stamped signature effect, user can be to be signed according to document Expected Results, the preview E-seal adding in layout files is adjusted, in one embodiment, as shown in Figure 2, after step S100, before step S200, can also comprise step S110: when receiving preview E-seal position or adjusted size information, adjust position or the size of described preview E-seal.Owing to directly showing and adjustment preview E-seal at layout files, by modes such as overlay electronic seal preview graph layers, do not adjust preview E-seal, preview E-seal result after adjustment is the effect of adding a cover E-seal, has realized and has seen to be the E-seal preview mode of gained.
In order to prevent that maloperation from changing position or the size of the preview E-seal of adjusting, in one embodiment, as shown in Figure 3, after step S110, can also comprise step S120: preserve described layout files, preserve position and the size of preview E-seal, be conducive to add a cover in batches the operation of E-seal simultaneously.
For the validity of convenient identification and checking preview E-seal, preview E-seal need to carry certain characteristic information, described characteristic information can be much information, for example, in one embodiment, described characteristic information is embedded in the title of preview E-seal and/or in the specific key assignments centering of preview E-seal and/or the digital watermarking of preview E-seal etc.The characteristic information that preview E-seal comprises is more, and identification and the checking effective accuracy of E-seal and security are just higher.
In one embodiment, the step of identifying described E-seal in step S200 can comprise: analyze the each picture comprising in described layout files, the characteristic information that the image attribute information obtaining if analyze and described preview E-seal comprise matches, and identifies described preview E-seal.The method of identification picture can realize by mode well known in the prior art.For example, described characteristic information is digital watermarking, adopt digital watermarking recognizer to analyze the object picture comprising in pdf document, if successfully extract described digital watermarking in an object picture, described object picture is described preview E-seal, recognizes an effective preview E-seal.Wherein by digital watermarking algorithm, obtaining digital watermarking can obtain by the known method of prior art.
In order to realize subscription authentication, improve the security that E-seal is added a cover, in one embodiment, as shown in Figure 4, after step S200, before step S300, can also comprise step S210:
The characteristic information of preview E-seal and default preview E-seal characteristic information are compared, if consistent, according to the position of the preview E-seal identifying, add signature field.
For example, described characteristic information is embedded in the digital watermarking of described preview E-seal, for the certificate serial number carrying in customer digital certificate, the certificate serial number of the certificate serial number of the digital watermarking of preview E-seal and default customer digital certificate is compared, if consistent, according to the position of the preview E-seal identifying, add signature field, otherwise do not carry out follow-up operation.
If identify an effective preview E-seal, also can further to described preview E-seal, carry out the operation of subscriber authorisation checking, to prevent that described preview E-seal is tampered, unauthorized I operate.In one embodiment, in the data dictionary of preview E-seal, add authorized user message, described authorized user message content is to adopt the PKCS#7 form signature value of intelligent code key to described characteristic information combine digital signature;
If the characteristic information of preview E-seal is consistent with default preview E-seal characteristic information, whether the signature value of verifying described authorized user message is effective, if effectively, it is authorized user operation, according to the position of the preview E-seal identifying, add signature field, otherwise refusal carries out next step operation.In this embodiment, authorized user message can be embedded by a user, and the operation of authentication of users authorization message can be carried out by another one user, thereby realizes the file that circulates in an approval process.In this embodiment, authorized user message can be embedded by a user, and the operation of authentication of users authorization message is carried out by server, thereby realize at server, to a large amount of, through the file of authorizing, carries out batch signature.
In one embodiment, described default preview E-seal characteristic information can be stored in intelligent code key, and described intelligent code key is directly connected with terminal by USB, and safe, Compatibility of Operating System is good, easy-to-use and be easy to carry.
In one embodiment, as shown in Figure 5, step S300 can be decomposed into following steps:
Signature field is added in the position of the preview E-seal that S310, basis identify;
S320, calculating original text summary embed watermark information in E-seal picture; Described original text refers to not yet add the layout files of preview E-seal, and described calculating original text summary can be used the conventional digest algorithms such as SHA1;
S330, in layout files, delete preview E-seal, the E-seal picture that then comprises watermark information is set to the outward appearance of signature field then combine digital signature operation.
In one embodiment, as shown in Figure 6, before execution step S300, can also comprise step S220: in layout files, fill user data.In this embodiment, by the business datum of the different user that inquires in database storage medium, and be filled in layout files, can realize the target of signing and issuing in batches custom formats list.
Embodiment bis-
Corresponding with the method for embodiment mono-, the present invention also provides a kind of device of positioning electronic seal, as shown in Figure 7, comprising:
Preview seal merge module 100, for when receiving preview E-seal interpolation information, adds preview E-seal in layout files to, and wherein said preview E-seal contains characteristic information;
Signature field merge module 400, for identifying described preview E-seal, adds signature field according to the position of the preview E-seal identifying, and described signature field is used for arranging signature outward appearance and carries out digital signature.
In one embodiment, the position that described preview seal merge module 100 adds preview E-seal in layout files to can be determined according to the mouse location information of obtaining, also can determine according to other input equipment positional informations of obtaining, also can add preview E-seal to predefined region etc.
In order to reach good E-seal stamped signature effect, user can be to be signed according to document Expected Results, the preview E-seal adding in layout files is adjusted, in one embodiment, as shown in Figure 8, the device of described positioning electronic seal can also comprise the adjustment information acquisition module 200 between described preview seal merge module 100 and described signature field merge module 400, for when receiving preview E-seal position or adjusted size information, adjust position or the size of described preview E-seal.
In order to record position or the size of the E-seal of adjusting, in one embodiment, as shown in Figure 9, the device of described positioning electronic seal can also comprise the preservation module 300 between described adjustment information acquisition module 200 and described signature field merge module 400, for preserving described layout files.
For the validity of convenient identification and checking preview E-seal, preview E-seal need to carry certain characteristic information, described characteristic information can be much information, for example, in one embodiment, described characteristic information is embedded in the title of preview E-seal and/or in the specific key assignments centering of preview E-seal and/or the digital watermarking of preview E-seal etc.The characteristic information that preview E-seal comprises is more, and identification and the checking effective accuracy of E-seal and security are just higher.
In one embodiment, described signature field merge module 400 is identified described preview E-seal and is comprised: analyze the each picture comprising in described layout files, the characteristic information that the image attribute information obtaining if analyze and described preview E-seal comprise matches, and identifies described preview E-seal.The method of identification picture can realize by mode well known in the prior art.
In order to realize subscription authentication, improve the security that E-seal is added a cover, in one embodiment, after described signature field merge module 400 is identified described preview E-seal, before adding signature field according to the position of the preview E-seal identifying, also, for the characteristic information of preview E-seal and default preview E-seal characteristic information are compared, if consistent, according to the position of the preview E-seal identifying, add signature field.
If identify an effective preview E-seal, also can further to described preview E-seal, carry out the operation of subscriber authorisation checking, to prevent that described preview E-seal is tampered, and carries out unauthorized E-seal and adds a cover operation.In one embodiment, described device can also comprise subscriber authorisation module, for adding authorized user message at the data dictionary of preview E-seal, described authorized user message content is to adopt the PKCS#7 form signature value of intelligent code key to described characteristic information combine digital signature;
If the characteristic information of preview E-seal is consistent with default preview E-seal characteristic information, whether described signature field merge module 400 is also effective for verifying the signature value of described authorized user message, if effectively, add signature field according to the position of the preview E-seal identifying.In this embodiment, authorized user message can be embedded by a user, and the operation of authentication of users authorization message can be carried out by another one user, thereby realizes the file that circulates in an approval process.In this embodiment, authorized user message can be embedded by a user, and the operation of authentication of users authorization message is carried out by server, thereby realize at server, to a large amount of, through the file of authorizing, carries out batch signature.
In one embodiment, the device of described positioning electronic seal can also comprise the intelligent code key of storing described default preview E-seal characteristic information, and described intelligent code key is directly connected with terminal by USB, safe, Compatibility of Operating System is good, easy-to-use and be easy to carry.
In one embodiment, described signature field merge module 400 operating processes specifically comprise:
According to the position of the preview E-seal identifying, add signature field;
Calculate original text summary and embed watermark information in E-seal picture; Described original text refers to not yet add the layout files of preview E-seal, and described calculating original text summary can be used the conventional digest algorithms such as SHA1;
In layout files, delete preview E-seal, the E-seal picture that then comprises watermark information is set to the outward appearance of signature field then combine digital signature operation.
In one embodiment, described device can also comprise the data stuffing module between described preview seal merge module 100 and described signature field merge module 400, for filling user data at layout files.In this embodiment, by the business datum of the different user that inquires in database storage medium, and be filled in layout files, can realize the target of signing and issuing in batches custom formats list.
Other technical characterictic of the present embodiment is identical with embodiment mono-, does not repeat them here.
Embodiment tri-
Based on same inventive concept, the present invention also provides a kind of device of realizing E-seal, and as shown in figure 10, described device comprises:
Preview seal merge module 100, for when receiving preview E-seal interpolation information, adds preview E-seal in layout files to, and wherein said preview E-seal contains characteristic information;
Signature field merge module 400, for identifying described preview E-seal, adds signature field according to the position of the preview E-seal identifying, and described signature field is used for arranging signature outward appearance and carries out digital signature;
Signature field outward appearance arranges module 500, is set to the outward appearance of described signature field for the E-seal picture obtaining from described preview E-seal;
In order to understand more clearly the present invention, realize the operating process of the device of E-seal, below in conjunction with a concrete application example, be described in detail.
When receiving preview E-seal interpolation information, in pdf document, add a rubber-stamp, it is preview E-seal, the point of addition of rubber-stamp is determined according to the mouse position signal receiving, rubber-stamp comprises digital watermarking, the content of digital watermarking is the characteristic information of preview E-seal, and as a special case, described characteristic information is the certificate serial number carrying in customer digital certificate;
In the data dictionary of rubber-stamp, add authorized user message, the content of authorized user message is to adopt the PKCS#7 form signature value of intelligent code key to described characteristic information combine digital signature;
In PDF client, show rubber-stamp, when receiving preview E-seal position or adjusted size information, position or size to rubber-stamp are adjusted, and complete and adjust the rear pdf document of preserving;
Analyze the each object picture comprising in pdf document, adopt digital watermarking recognizer to extract digital watermarking, if successfully extract digital watermarking, recognize an effective rubber-stamp;
The certificate serial number of customer digital certificate in the intelligent code key of the certificate serial number recording in digital watermarking and insertion terminal is compared, if consistent, carry out subsequent operation, otherwise refusal carries out subsequent operation;
Whether the signature value of verifying described authorized user message is effective, if effectively, for carrying out next step operation, otherwise refusal carries out next step operation;
In layout files, delete preview E-seal, obtain original layout files, then in original layout files, fill user data, and adopt SHA1 algorithm to calculate digest value;
From rubber-stamp, extract E-seal picture, described digest value is embedded in E-seal picture in the mode of digital watermarking;
According to the position of rubber-stamp, in the layout files that comprises user data, add signature field, and described E-seal picture is set to the outward appearance of signature field, if the size of the size of E-seal picture and preview E-seal is inconsistent, by convergent-divergent or expansion E-seal picture, alignment E-seal central point is placed E-seal picture etc., by consistent with the adjusted size of rubber-stamp the size of E-seal picture;
In pdf document, add digital signature data dictionary, compute signature value completes digital signature procedure, upgrades and preserve pdf document to obtain the document that comprises E-seal.
Such scheme, by the checking to authorized user message, has effectively been avoided the unauthorized use of E-seal.
Other technical characterictic of the present embodiment is identical with embodiment bis-, does not repeat them here.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (19)
1. a method for positioning electronic seal, is characterized in that, comprises step:
When receiving preview E-seal interpolation information, preview E-seal is added in layout files, wherein said preview E-seal contains characteristic information;
Identify described preview E-seal, according to the position of the preview E-seal identifying, add signature field, described signature field is used for arranging signature outward appearance and carries out digital signature.
2. the method for positioning electronic seal according to claim 1, is characterized in that, the position that preview E-seal adds in layout files is determined according to the mouse location information of obtaining.
3. the method for positioning electronic seal according to claim 1, is characterized in that, after adding preview E-seal to step in layout files, before identifying the step of described preview E-seal, also comprises step:
When receiving preview E-seal position or adjusted size information, adjust position or the size of described preview E-seal.
4. the method for positioning electronic seal according to claim 3, is characterized in that, after adjusting the position of described preview E-seal or the step of size, also comprises the step of preserving described layout files.
5. the method for positioning electronic seal according to claim 1, is characterized in that, described characteristic information is embedded in the title of preview E-seal and/or in the specific key assignments centering of preview E-seal and/or the digital watermarking of preview E-seal.
6. the method for positioning electronic seal according to claim 1, it is characterized in that, the step of identifying described preview E-seal comprises: analyze the each picture comprising in described layout files, the characteristic information that the image attribute information obtaining if analyze and described preview E-seal comprise matches, and identifies described preview E-seal.
7. the method for positioning electronic seal according to claim 1, is characterized in that, after identifying the step of described preview E-seal, before adding the step of signature field, also comprises step according to the position of the preview E-seal identifying:
The characteristic information of preview E-seal and default preview E-seal characteristic information are compared, if consistent, according to the position of the preview E-seal identifying, add signature field.
8. the method for positioning electronic seal according to claim 7, it is characterized in that, in the data dictionary of preview E-seal, add authorized user message, described authorized user message content is to adopt the PKCS#7 form signature value of intelligent code key to described characteristic information combine digital signature;
If the characteristic information of preview E-seal is consistent with default preview E-seal characteristic information, verify that whether the signature value of described authorized user message is effective, if effectively, according to the position of the preview E-seal identifying, add signature field.
9. the method for positioning electronic seal according to claim 7, is characterized in that, described default preview E-seal characteristic information is stored in intelligent code key.
10. a device for positioning electronic seal, is characterized in that, comprising:
Preview seal merge module, for when receiving preview E-seal interpolation information, adds preview E-seal in layout files to, and wherein said preview E-seal contains characteristic information;
Signature field merge module, for identifying described preview E-seal, adds signature field according to the position of the preview E-seal identifying, and described signature field is used for arranging signature outward appearance and carries out digital signature.
The device of 11. positioning electronic seals according to claim 10, is characterized in that, the position that described preview seal merge module adds preview E-seal in layout files to is determined according to the mouse location information of obtaining.
The device of 12. positioning electronic seals according to claim 10, it is characterized in that, also comprise the adjustment information acquisition module between described preview seal merge module and described signature field merge module, for when receiving preview E-seal position or adjusted size information, adjust position or the size of described preview E-seal.
The device of 13. positioning electronic seals according to claim 12, is characterized in that, also comprises the preservation module between described adjustment information acquisition module and described signature field merge module, for preserving described layout files.
The device of 14. positioning electronic seals according to claim 10, is characterized in that, described characteristic information is embedded in the title of preview E-seal and/or in the specific key assignments centering of preview E-seal and/or the digital watermarking of preview E-seal.
The device of 15. positioning electronic seals according to claim 10, it is characterized in that, described signature field merge module is identified described preview E-seal and is comprised: analyze the each picture comprising in described layout files, the characteristic information that the image attribute information obtaining if analyze and described preview E-seal comprise matches, and identifies described E-seal.
The device of 16. positioning electronic seals according to claim 10, it is characterized in that, after described signature field merge module is identified described preview E-seal, before adding signature field according to the position of the preview E-seal identifying, also for the characteristic information of preview E-seal and default preview E-seal characteristic information are compared, if consistent, according to the position of the preview E-seal identifying, add signature field.
The device of 17. positioning electronic seals according to claim 16, it is characterized in that, also comprise subscriber authorisation module, for adding authorized user message at the data dictionary of preview E-seal, described authorized user message content is to adopt the PKCS#7 form signature value of intelligent code key to described characteristic information combine digital signature;
If the characteristic information of preview E-seal is consistent with default preview E-seal characteristic information, whether described signature field merge module is also effective for verifying the signature value of described authorized user message, if effectively, add signature field according to the position of the preview E-seal identifying.
The device of 18. positioning electronic seals according to claim 16, is characterized in that, also comprises the intelligent code key of storing described default preview E-seal characteristic information.
Realize the device of E-seal for 19. 1 kinds, it is characterized in that, comprising:
Preview seal merge module, for when receiving E-seal interpolation information, adds preview E-seal in layout files to, and wherein said preview E-seal contains characteristic information;
Signature field merge module, for identifying described preview E-seal, adds signature field according to the position of the preview E-seal identifying, and described signature field is used for arranging signature outward appearance and carries out digital signature;
Signature field outward appearance arranges module, is set to the outward appearance of described signature field for the E-seal picture obtaining from described preview E-seal;
Digital signature module, for adding digital signature data dictionary at described layout files, compute signature value completes digital signature.
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112579992A (en) * | 2020-12-18 | 2021-03-30 | 合肥高维数据技术有限公司 | Electronic signature anti-counterfeiting device based on invisible watermarks and seal making and identifying method thereof |
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| CN104320252A (en) * | 2014-09-26 | 2015-01-28 | 大连声鹭科技有限公司 | A mobile online tracking and verifying electronic smart seal, electronic seal extraction management system and verifying method |
| CN104320252B (en) * | 2014-09-26 | 2017-07-11 | 大连声鹭科技有限公司 | A kind of mobile online tracking verification electronic intelligence seal, electronic signature management system and verification method |
| CN106127456A (en) * | 2016-06-30 | 2016-11-16 | 昆山百润科技股份有限公司 | There is the E-seal label lid method of position memory function of affixing one's seal |
| CN106330459A (en) * | 2016-08-25 | 2017-01-11 | 杭州天谷信息科技有限公司 | Electronic keyword signature method |
| CN106355104A (en) * | 2016-08-25 | 2017-01-25 | 杭州天谷信息科技有限公司 | Electronic signature method for realizing original privacy protection based on sandbox technology |
| CN108257197A (en) * | 2016-12-28 | 2018-07-06 | 航天信息股份有限公司 | A kind of method and system for the setting seal on the perforation at electronic document page-by-page |
| CN108540685A (en) * | 2017-03-01 | 2018-09-14 | 京瓷办公信息系统株式会社 | Electronic-seal device and electronic-seal method |
| US10498921B2 (en) | 2017-03-01 | 2019-12-03 | Kyocera Document Solutions Inc. | Electronic imprinting device that affixes imprint data to document data |
| CN107133312A (en) * | 2017-05-02 | 2017-09-05 | 深圳乐信软件技术有限公司 | A kind of electronic signature method and device |
| CN107222506A (en) * | 2017-07-13 | 2017-09-29 | 包永祥 | A kind of signature method and system |
| CN109831302A (en) * | 2017-11-23 | 2019-05-31 | 杭州天谷信息科技有限公司 | PDF electronic signature method and system based on national secret algorithm |
| CN108109187A (en) * | 2017-12-04 | 2018-06-01 | 泰康保险集团股份有限公司 | E-seal generation method, device and electronic equipment |
| CN107984910A (en) * | 2017-12-05 | 2018-05-04 | 大连易签云网络科技有限公司 | A kind of method and apparatus of electronic-seal |
| CN110020414A (en) * | 2018-01-08 | 2019-07-16 | 优信拍（北京）信息科技有限公司 | A kind of electronic contract document creation method, system |
| CN108615216A (en) * | 2018-03-22 | 2018-10-02 | 北京印刷学院 | A kind of holographic watermark authentication method of notarial |
| CN108830502A (en) * | 2018-06-27 | 2018-11-16 | 中国联合网络通信集团有限公司 | A kind of seal system |
| CN109672536A (en) * | 2018-12-24 | 2019-04-23 | 航天信息股份有限公司 | A kind of batch PDF file digital signature method and system |
| CN110532811A (en) * | 2019-08-30 | 2019-12-03 | 杭州天谷信息科技有限公司 | A kind of PDF signature method and PDF sealing system |
| CN110750964A (en) * | 2019-09-18 | 2020-02-04 | 平安科技（深圳）有限公司 | Information adding method and related device |
| CN113282963A (en) * | 2020-02-20 | 2021-08-20 | 中国移动通信集团重庆有限公司 | Electronic signature verification method, device and equipment |
| CN112100685A (en) * | 2020-08-10 | 2020-12-18 | 广东省特种设备检测研究院珠海检测院 | Encryption and tamper-proof processing method for checking and detecting electronic report |
| CN112579992A (en) * | 2020-12-18 | 2021-03-30 | 合肥高维数据技术有限公司 | Electronic signature anti-counterfeiting device based on invisible watermarks and seal making and identifying method thereof |
| CN113112222A (en) * | 2021-04-02 | 2021-07-13 | 北京点聚信息技术有限公司 | Automatic signature method and system for OFD format file based on big data analysis |
| CN113112222B (en) * | 2021-04-02 | 2024-02-09 | 北京点聚信息技术有限公司 | Automatic signature method and system for OFD format file based on big data analysis |
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