CN110941846B - Filling application method and system for preventing electronic certificate original from being restored - Google Patents
Filling application method and system for preventing electronic certificate original from being restored Download PDFInfo
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- CN110941846B CN110941846B CN201911327599.9A CN201911327599A CN110941846B CN 110941846 B CN110941846 B CN 110941846B CN 201911327599 A CN201911327599 A CN 201911327599A CN 110941846 B CN110941846 B CN 110941846B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
Abstract
The invention discloses a filling application method and a system for preventing recovery of an electronic certificate original, the scheme is that firstly, the original digital signature information or electronic signature information in the electronic certificate original file is changed by preprocessing the digital signature and the electronic signature key content information in the electronic certificate original file; then, inputting the filling information which can be superposed on the lighting surface of the electronic certificate; and finally, performing digital signature or electronic signature on the content of the electronic certificate in a digital signature or electronic signature mode. The filling application scheme for preventing the electronic certificate original from being restored can effectively prevent the electronic certificate original from being restored from the electronic certificate filling original; meanwhile, the original content of the electronic certificate can be recovered from the electronic certificate filling book and verified, and authenticity, integrity, non-repudiation, practicability and verifiability of the electronic certificate are ensured.
Description
Technical Field
The invention relates to an information security technology in the field of electronic certificate application, in particular to an information security technology of an electronic certificate.
Background
The electronic certificate is a credible electronic certificate file subjected to electronic signature or digital signature by an issuing organization, contains the face information, the structural information and the format file information for expressing the electronic certificate, and is usually used as a basic file for managing the electronic certificate by the certificate issuing organization.
The electronic certificate notebook is a credible electronic certificate file generated according to an electronic certificate original book, and the file not only contains necessary information of the electronic certificate original book, but also contains related information for applying to make the electronic certificate notebook, and digital signature information of the electronic certificate holder (or a user) for the electronic certificate notebook, and is usually used as an archival file of the electronic certificate for a certificate user.
Currently, with the vigorous construction of electronic license libraries, relevant laws have made it clear that electronic licenses have the same legal effectiveness as physical licenses. The electronic certificate provides basic support for national government affairs 'one-network communication' and social application. In the practical application process, the electronic certificate is basically used, however, the digital signature information of the certificate annotator can be removed by the existing electronic certificate annotating book through a technical means, and an electronic certificate file (electronic certificate original) only containing an electronic signature or a digital signature of an issuing organization can be obtained after the digital signature information is removed, so that the corresponding original of the electronic certificate can be forged through the electronic certificate annotating book and used for handling and archiving files. Therefore, a security mechanism is needed to ensure that electronic certificate notebooks cannot be forged from electronic certificate notebooks.
Therefore, the safe and controllable electronic certificate filling technology is an urgent technical problem to be solved in the field, the electronic certificate filing use is realized according to the real intention of a holder of the electronic certificate, and a basic guarantee is provided for promoting the socialized application.
Disclosure of Invention
Aiming at the problem that the safety of an electronic certificate notebook formed by the existing electronic certificate notebook filling technology is poor, a new safety mechanism is needed to ensure that the original of the electronic certificate cannot be forged from the electronic certificate notebook.
Therefore, the invention aims to provide a filling application method for preventing the recovery of the electronic certificate original and also provides a filling application system for preventing the recovery of the electronic certificate original so as to ensure the safety and credibility of the electronic certificate original subjected to digital signature and avoid illegal tampering.
In order to achieve the above object, the present invention provides a filling application method for preventing recovery of an electronic certificate original, comprising:
(1) The original digital signature information or electronic signature information in the electronic certificate original file is changed by preprocessing the digital signature or electronic signature key content information in the electronic certificate original file;
(2) Inputting the filling information which can be superposed on the illumination surface of the electronic certificate;
(3) And performing digital signature or electronic signature on the content of the electronic certificate in a digital signature or electronic signature mode.
Further, the electronic certificate original document in the step (1) only passes through the digital signature or electronic signature of the issuing organization.
Further, the pretreatment process in the step (1) comprises the following steps:
(11) Retrieving and extracting the digital signature or signature key content information in the electronic certificate original document,
(12) Removing, transforming, encrypting and hiding the extracted information;
(13) And writing the processed information back to the corresponding storage area in the electronic license filing file, and changing the original digital signature information and electronic signature information in the electronic license original file.
Further, the key content information of the digital signature and the electronic signature can be all or part of the information in the digital signature and the electronic signature in the content of the electronic certificate original document, or other information in the original document.
Further, the processed information in the step (13) may be written back to the original content storage area corresponding to the electronic license original book, or may be written back to the original content storage area corresponding to the electronic license original book, so as to change the original digital signature information and electronic signature information in the electronic license original file content.
Further, the processed information in the step (13) may be written back to a corresponding storage area of the electronic certificate filing file, in whole or in part, so as to change the original digital signature information and electronic signature information in the electronic certificate filing file.
Further, the filling application method further comprises the step of setting signature domain information of the hidden original book and the hidden filling book in the electronic license format file according to a filling strategy.
Further, the visibility of the signature domain in the electronic certificate copy file can be manually set according to the filling strategy.
Furthermore, the visibility of the electronic certificate signing domain can be automatically judged or artificially set according to a digital signature or a cryptographic algorithm of an electronic signature used during signing.
Furthermore, the filling application method also comprises a verification step of recovering the original digital signature and the signature information of the electronic certificate through a reverse processing technology for the formed electronic certificate filling book.
In order to achieve the above object, the present invention provides a filling application system for preventing recovery of an electronic certificate original, comprising:
the preprocessing unit is used for preprocessing the digital signature and the electronic signature key content information in the electronic certificate original file so as to change the original digital signature information and electronic signature information in the electronic certificate original file;
the information filling unit inputs filling information which can be superposed on the reference surface of the electronic certificate according to the requirement of transacting business;
and the signature unit is used for carrying out digital signature or electronic signature on the added content of the electronic certificate.
Furthermore, the filling application system also comprises a signature domain setting unit, and the signature domain setting unit sets signature domain information of the hidden original book and the filling book in the electronic license format file according to a filling strategy.
The filling application scheme for preventing the electronic certificate original from being restored can effectively prevent the electronic certificate original from being restored from the electronic certificate original; meanwhile, the original content of the electronic certificate can be recovered from the electronic certificate filling book and verified, and authenticity, integrity, non-repudiation, practicability and verifiability of the electronic certificate are ensured.
The scheme provided by the invention solves the problem that the electronic certificate notebook is safely and effectively protected under the government affair application and socialization application scenes; meanwhile, authenticity, integrity, non-repudiation, practicability and verifiability of the electronic certificate filling book under government affairs application and social application scenes are realized under the condition of not depending on an original electronic certificate library.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a diagram illustrating an example of a system for preventing the electronic certificate copy from being restored in an exemplary embodiment of the present invention;
fig. 2 is a schematic diagram of a security generation method of an electronic license notebook in the embodiment of the invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific drawings.
Because the digital signature information of the certificate applier can be removed by a technical means in the using process of the existing electronic certificate filing book, an electronic certificate file (namely an electronic certificate original book) only containing an electronic signature or a digital signature of an issuing organization can be obtained after the digital signature information is removed, and then the original book of the electronic certificate can be forged through the electronic certificate filing book and used for handling and filing files.
Therefore, the filling application scheme for preventing the electronic certificate original from being restored is provided, the safety and the credibility of the digitally signed electronic certificate filling book can be effectively improved, and the safety, the credibility, the practicability, the traceability and the non-tamper property of the electronic certificate filling book in the using process are ensured.
Referring to fig. 1, there is shown a system configuration diagram of a filling application system for preventing the electronic certificate original from being restored, which is given in this example.
The electronic certificate original copy filling application system can be used for filling the electronic certificate original copy of the digital signature and the electronic signature which only pass through an issuing organization so as to form a non-falsifiable and traceably verified electronic certificate filling copy.
As can be seen, the filling application system 10 is a software system as a whole, and can be executed by a corresponding controller to implement the electronic license secure filling function.
By way of example, the present filing application system 10 mainly includes four functional units, that is, a preprocessing unit 11, an information filing unit 12, a signature unit 13, and a signature domain setting unit 14 in terms of function.
When executed, the preprocessing unit 11 can preprocess the digital signature and the key content information of the electronic signature in the electronic certificate original file to change the original digital signature information or electronic signature information in the electronic certificate original file.
The original digital signature information or electronic signature information in the electronic certificate original file is changed, and the digital signature or signature information of the content of the electronic certificate original file is mainly invalid.
The information filling unit 12 is matched with the preprocessing unit 11, and can input filling information which can be superposed on the illumination surface of the electronic certificate according to the requirement of business handling when being executed. The filling information can be determined according to actual requirements, such as the elements of appointed electronic certificate users, use purposes, use validity periods and the like.
The filling method of the filling information in this example is not limited herein, and may be determined according to actual needs. For example, the method may be implemented by way of digital watermarking, or by hiding a signature field after the watermarking.
The signature unit 13 cooperates with the information annotating unit 12 and can invoke a digital signature service or an electronic signature service when executed to digitally sign or electronically sign the annotated contents of the electronic certificate.
On the basis, the system is also provided with a signature domain setting unit 14 which can set signature domain information of the hidden original book and the added book in the electronic certificate layout file according to the adding strategy when being executed.
Through the operation of the signature domain setting unit 14, on one hand, when the electronic license filing file filled by the scheme is opened through a format file reader tool of a third party, the specific signature domain related information is not displayed on a reader interface, and the false phenomenon that the related signature domain information displayed by reader tool software is damaged is avoided; on the other hand, when the password algorithm of the electronic certificate original book or the note book cannot be correctly identified, specific signature domain related information is not displayed on the interface of the reader, and the false phenomenon that the related signature domain information displayed by the tool software of the reader is damaged when the signature domain related information is not hidden is avoided; therefore, the practicability of the electronic certificate notebook is realized.
When the filling application system 10 is operated to form a corresponding electronic certificate filling book, the filling application system firstly searches and positions the content corresponding to the digital signature or the electronic signature in the electronic certificate original book; extracting partial information in the digital signature value (including the signature value of the electronic certificate original in the electronic signature mode) of the electronic certificate original; encrypting the extracted value by adopting a cryptographic algorithm again, and further converting the encrypted value to form a visible character string; and simultaneously, the information of the local storage area in the electronic license original book is completely or partially replaced, so that the content of the value proposed by the original book of the electronic license is effectively prevented from being recovered from the electronic license filling book, and the encrypted and converted content is partially or completely stored in the electronic license filling book, so that the original book of the electronic license is prevented from being recovered from the electronic license filling book. Meanwhile, the formed electronic certificate note filling book can recover the original content of the electronic certificate from the electronic certificate note filling book and verify the original content, so that the authenticity, the integrity, the non-repudiation, the practicability and the verifiability of the electronic certificate are ensured.
Accordingly, the following describes the process by which the present example scheme performs the process of preventing the resumption of the filling application of the electronic certificate original.
Referring to fig. 2, the process of securely generating an electronic license notebook in this example mainly includes the following steps:
s110: the original digital signature information or electronic signature information in the electronic certificate original file is changed by preprocessing the digital signature and the electronic signature key content information in the electronic certificate original file; the electronic certificate is an electronic certificate which is only subjected to a digital signature and an electronic signature of an issuing organization, namely electronic certificate information containing digital signature or electronic signature information in an electronic certificate file.
S120: inputting the filling information which can be superposed on the illumination surface of the electronic certificate; by way of example, the filling information may be elements for specifying the electronic license user, the use purpose, the use validity period and the like.
S130: according to the filling strategy, signature domain information of the original book and the filling book can be hidden in the electronic license layout file. On one hand, when the electronic certificate added by the scheme is opened by a format file reader tool of a third party, specific signature domain related information is not displayed on a reader interface, and the false phenomenon that the related signature domain information displayed by reader tool software is damaged is avoided; on the other hand, when the password algorithm of the electronic certificate original book or the note book cannot be correctly identified, specific signature domain related information is not displayed on the interface of the reader, and the false phenomenon that the related signature domain information displayed by the tool software of the reader is damaged when the signature domain related information is not hidden is avoided; thereby can improve the practicality of electron license filling book.
S140: the method comprises the steps that digital signature service or electronic signature service is called to carry out digital signature or electronic signature on the contents of the electronic certificate, so that the original of the electronic certificate is prevented from being recovered from the contents of the electronic certificate; meanwhile, the original content of the electronic certificate can be recovered from the electronic certificate filling book and verified, and authenticity, integrity, non-repudiation, practicability and verifiability of the electronic certificate are ensured.
According to the scheme, when the digital signature and the key content information of the electronic signature in the electronic certificate original document are preprocessed, technical methods such as retrieval, extraction, removal, transformation, encryption and hiding are preferably performed for preprocessing. By way of example, the basic process is as follows:
s111: retrieving and extracting the digital signature or signature key content information in the electronic certificate original document, wherein the content can be all or part of information in the digital signature and the electronic signature or other information in the original document;
s112: the extracted information is processed by technical methods such as removal, transformation, encryption, hiding and the like; this ensures that an unauthorized user cannot recover the original digital signature or signature information from the electronic certificate filing document.
S113: the processed information is written back to the corresponding original content storage area in the electronic certificate filing file, so that the original digital signature information and electronic signature information in the electronic certificate original file are changed, namely the digital signature or signature information of the content of the electronic certificate original file is invalid, but the recovery verification can be carried out through the inverse transformation of the processing method.
It should be noted that, in the process, the key information in the content of the electronic certificate original document is retrieved and extracted, and may be all digital signature information and electronic signature information in the content of the electronic certificate original document, or part of the digital signature information and electronic signature information in the content of the electronic certificate original document.
In addition, in step S113, the information obtained by performing preprocessing such as removing, transforming, encrypting, and hiding the information extracted from the electronic certificate original may be written back to the original content storage area corresponding to the electronic certificate original in whole or in part, so as to change the original digital signature information and electronic signature information in the content of the electronic certificate original.
Alternatively, in step S113, the information obtained by preprocessing the information extracted from the electronic certificate original in the manners of removing, transforming, encrypting, hiding, and the like may be selectively written back to the corresponding storage area of the electronic certificate original content, so as to change the original digital signature information and electronic signature information in the electronic certificate original content.
In step S130, according to the policy of adding, signature domain information of the original and the added original may be hidden in the electronic license layout file, and according to the policy of adding, visibility of the signature domain in the electronic license original file may be set.
During the specific implementation of the step, the associated information is modified and invisible by searching and locating the domain corresponding to the digital signature or the electronic signature domain in the electronic certificate original in the format file and the associated information thereof, so that the specific signature domain related information is not displayed on the interface of the reader under the condition that the information of the electronic certificate original cannot identify the cryptographic algorithm in the reader tool software, and the false phenomenon that the related signature domain information displayed by the reader tool software is damaged when the information is not hidden is avoided.
As an alternative scheme, the scheme can also automatically judge or artificially set the visibility of the electronic certificate signing domain according to the digital signature or the cryptographic algorithm of the electronic signature used in the signing process; therefore, the electronic certificate notebook can be set to be invisible under the condition that the filling password algorithm of the electronic certificate notebook cannot be correctly identified, namely, the specific signature domain related information is not displayed on the interface of the reader, and the false image that the related signature domain information displayed by the tool software of the reader is damaged when the electronic certificate notebook is not hidden is avoided.
In the specific implementation process, the digital signature and the electronic signature key content information in the electronic certificate original file are preprocessed, after the original digital signature information or the electronic signature information in the electronic certificate original file is changed, the digital signature and the signature information of the electronic certificate original file can be restored according to the reverse processing mode of the electronic certificate filling generation scheme in the electronic certificate filling scheme, and therefore on the basis that the digital signature or the signature information of the electronic certificate filling file can be verified, the digital signature or the signature information of the electronic certificate original file can be verified at the same time, and authenticity, integrity, non-repudiation, practicability and verifiability of the electronic certificate are guaranteed.
Therefore, the scheme can solve the problem that the electronic certificate is required to be safely and effectively protected under the government affair application and social application scenes; meanwhile, authenticity, integrity, non-repudiation, practicability and verifiability of the electronic certificate filling machine under government affairs application and social application scenes can be guaranteed under the condition of not depending on an original electronic certificate library.
Finally, it should be noted that the method of the present invention, or a specific system unit, or some of its units, is a pure software structure, and can be distributed on a physical medium such as a hard disk, an optical disk, or any electronic device (e.g. a smart phone, a computer readable storage medium) through a program code, and when the program code is loaded and executed by a machine (e.g. loaded and executed by a smart phone), the machine becomes an apparatus for implementing the present invention. The methods and apparatus of the present invention may also be embodied in the form of program code that is transmitted over some transmission medium, such as electrical cable, optical fiber, or any other form of transmission, wherein, when the program code is received and loaded into and executed by a machine, such as a smart phone, the machine becomes an apparatus for practicing the invention.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (12)
1. The filling application method for preventing the recovery of the electronic certificate original is characterized by comprising the following steps:
(1) The original digital signature information or electronic signature information in the electronic certificate original file is changed by preprocessing the digital signature or electronic signature key content information in the electronic certificate original file; during preprocessing, retrieving and extracting the digital signature or signature key content information in the electronic certificate original file, writing back the processed information to a corresponding storage area in the electronic certificate filing file, and changing the original digital signature information and electronic signature information in the electronic certificate original file;
(2) Inputting filling information which can be superposed on the lighting surface of the electronic certificate;
(3) And performing digital signature or electronic signature on the content of the electronic certificate in a digital signature or electronic signature mode.
2. The method of claim 1, wherein the electronic certificate copy document in step (1) is subject to only an issuer's digital signature or electronic signature.
3. The filling application method of claim 1, wherein, when the preprocessing is performed in the step (1), the extracted information is subjected to removing, transforming, encrypting and hiding processing.
4. A method for filling and applying a file according to claim 3, wherein the key content information of the digital signature and the electronic signature is all or part of the information of the digital signature and the electronic signature in the content of the electronic certificate original file.
5. The filling application method according to claim 4, wherein in the step (1), the processed information is written back to the corresponding original content storage area in the electronic certificate copy, so as to change original digital signature information and electronic signature information in the content of the electronic certificate copy file.
6. The filling application method according to claim 5, wherein in the step (1), the processed information is written back to a corresponding filling content storage area in a filling file of the electronic certificate in whole or in part, so as to change original digital signature information and electronic signature information in the content of the electronic certificate original file.
7. The filling application method according to claim 1, further comprising a step of setting signature domain information of the hidden original and the filling original in the electronic license format file according to a filling policy.
8. The method of claim 7, wherein the visibility of the signature field in the electronic certificate copy file is manually settable according to a filing policy.
9. A filling application method according to claim 7, characterized in that the visibility of the electronic certificate filling present signature domain can be automatically judged or artificially set according to the cryptographic algorithm of the digital signature or electronic signature used in filling.
10. The filling application method according to claim 1, further comprising a verification step of recovering the original digital signature and signature information of the electronic certificate through a reverse processing technology on the formed electronic certificate filling book.
11. Prevent to resume filling application system of electron license original, its characterized in that includes:
the preprocessing unit is used for preprocessing the digital signature and the electronic signature key content information in the electronic certificate original file so as to change the original digital signature information and electronic signature information in the electronic certificate original file; during preprocessing, retrieving and extracting the digital signature or signature key content information in the electronic certificate original file, writing back the processed information to a corresponding storage area in the electronic certificate filing file, and changing the original digital signature information and electronic signature information in the electronic certificate original file;
the information filling unit inputs filling information which can be superposed on the reference surface of the electronic certificate according to the requirement of transacting business;
and the signature unit is used for carrying out digital signature or electronic signature on the content of the electronic certificate.
12. The filling application system according to claim 11, further comprising a signature domain setting unit, wherein the signature domain setting unit sets signature domain information of the hidden original and the filling original in the electronic certificate layout file according to a filling policy.
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