KR20150072741A - providing method of originality certificated electronic document using time-stamp - Google Patents

Abstract

The present invention relates to a method for providing an electronic document, wherein time confirmation and originality of an electronic document may be certificated by using a time stamp. The method of the present invention comprises the steps of: (A) generating a hash code for issuing a time stamp, through a time stamp plug in installed in a client terminal in a plug in type in an electronic document program; (B) generating, by a server, a time stamp token through the hash code and time information, and transmitting the same to the client server; (C) generating, by the client terminal, an electronic document identification image by which originality and generation time of an electronic document may be confirmed through the time stamp token; and (D) inserting, by the client terminal, the electronic document identification image in a predetermined region of the electronic document. According to the present invention, by using a reliable time stamp and an electronic signature, an electronic document may be certificated that the same is written by a specific person at a particular point of time without forgery. Also, a third party may easily perform certification without a device having a plug in installed therein.

Description

{PROVIDING METHOD OF ORIGINALITY CERTIFICATED ELECTRONIC DOCUMENT USING TIME-STAMP}

The present invention relates to a method of providing an electronic document capable of verifying the time and authenticity of an electronic document using a time stamp, The present invention relates to a method for providing an original proof electronic document using a time stamp for adding a verification image that can verify whether a document is missing or not.

In recent years, as the use of electronicized electronic documents has increased, techniques for preventing up / modulation of electronic documents have been widely developed and used.

As an example of this technique, an electronic signature is an electronic form of data attached to or logically associated with an electronic document, which is used to verify the identity of the signer and to express his or her approval of the contents of the electronic document. Such an electronic signature is an effective tool for reducing the risk of information leakage that may occur in Internet shopping or cyber financial transactions, and it is very helpful to prevent theft or tampering of personal information by using an electronic signature.

However, there is a disadvantage in that the digital signature can not be confirmed at the time of the authenticity because the individual can change the time and re-sign it. That is, since the signature timing is not clear, the integrity of the electronic document can not be sufficiently verified at a certain point in time.

In addition, a time stamp is an electronic technology that confirms a point in time in an electronic document and has not been modified since then. This is an element technology of a public key infrastructure (PKI), which adds time information to an electronic signature so that a user can verify the integrity of the electronic document more effectively.

As described above, a technology has been developed and provided to generate and provide an electronic document that confirms the generation time and authenticity of a document by using an electronic signature and a time stamp.

For example, Korean Patent Laid-Open No. 10-2010-0085633 discloses a technique for verifying the authenticity of an electronic document by applying an electronic signature and a time stamp to the electronic document.

However, in such a conventional technique, a device equipped with a plug-in must be used in order to check the time stamp inserted into the electronic document, so that the electronic document creator has to check and it is difficult for the general person to discriminate whether or not the person is authentic . Particularly, when the electronic document does not generate a document about the electronic document, but generates a document for a third party such as a medical staff, the subject of the electronic document content may be a third party, There is a problem that the verification of authenticity may be necessary, and in this case, it is necessary to help the creator of the electronic document having the device with the plug-in installed to confirm the authenticity of the third party.

Further, in the prior art, when the creator of the electronic document misses the created electronic document itself, there is a problem that it can not be confirmed. That is, when the creator of the electronic document destroys the generated electronic document and newly generates the electronic document within a relatively short time, it is practically impossible to grasp whether or not the originally created electronic document exists.

Korean Patent Publication No. 10-2010-0085633

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method and apparatus for generating and providing an original electronic document using an electronic signature and a time stamp, The present invention provides a method of providing an original proof electronic document using a time stamp which can easily confirm the original confirmation data such as the nature and creation time.

The present invention proposes a method of generating an original electronic document by using an electronic signature and a time stamp and providing an original document using a time stamp that can confirm whether or not the electronic document is created or stored And to provide a method of providing an electronic document.

According to an aspect of the present invention for achieving the above object, there is provided a method for providing a time stamp, the method comprising the steps of: (A) generating a hash code for issuing a time stamp, Wow; (B) the server generates a time stamp token through the hash code and the time information, and transmits the time stamp token to the client server; (C) generating an electronic document identification image by which the cleansing terminal confirms whether the electronic document is authentic and the generation time through the time stamp token; And (D) inserting the electronic document identification image into a predetermined area of the electronic document by the client terminal.

Here, the electronic document identification image may be formed of a two-dimensional QR code image.

The hash code includes the subject information and the creator information of the electronic document. The electronic document identification image may include electronic document subject information, electronic document creator information, and creation time information of the electronic document.

On the other hand, the present invention inserts author information and creation time information into an electronic document including an electronic document containing recording contents for a subject created by the author, confirms the information inserted by the subject in the electronic document, (A) generating a hash code for time stamp issuance by a time stamp plug-in installed in a client terminal in a plug-in form in an electronic document program; (b) inserting a timestamp token generated through the hash code and time information into the electronic document; (c) generating an electronic document identification image capable of confirming whether the electronic document is authentic and burned out through the time stamp token; And (d) inserting the electronic document identification image into a predetermined area of the electronic document by the client terminal, wherein the hash code comprises the subject information and the author information of the electronic document, The electronic document identification image includes a method of providing an original proof electronic document using a time stamp which is a two-dimensional QR code image including electronic document subject information, electronic document creator information, and creation time information of an electronic document.

The electronic document identification image may further include issuance serial number information of the electronic document by the same author for the same subject.

In addition, the server may store the cumulative number of times of issuance of the electronic document by the same author to the same subject.

The following effect can be expected in the method of providing the original proof electronic document using the time stamp according to the present invention as described above.

That is, according to the present invention, it is possible not only to verify that the electronic document is created by a specific person without being up / modulated at a specific time point using a reliable time stamp and digital signature, but also to easily perform the verification without a third party having a plug- There are advantages to be able to.

According to the present invention, it is possible to judge whether or not the electronic document is lost / destroyed, as well as whether the electronic document is in the up / There is an advantage of being able to know more clearly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary diagram showing a configuration of an original proof electronic document providing system according to the present invention; FIG.
FIG. 2 is a flowchart showing an embodiment of a method for providing an original proof electronic document using a time stamp according to the present invention; FIG.
3 is an exemplary diagram showing an example of an embodiment of a method of providing an original proof electronic document according to the present invention.

Hereinafter, a method of providing an original proof electronic document using a time stamp according to a specific embodiment of the present invention will be described with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

2 is a flow chart showing an embodiment of a method for providing an original proof electronic document using a time stamp according to the present invention, and FIG. 2 is a flowchart 3 is an exemplary diagram showing an example of an embodiment of an original proof electronic document providing method according to the present invention.

First, as shown in FIG. 1, a method for providing an original proof electronic document using a time stamp according to the present invention includes a client terminal 20 for creating an electronic document containing content for a third party 10, ).

The electronic document generated in the present invention includes content for a third party (subject 10), and representative examples thereof may be a medical recording paper for a patient, and may be an evaluation sheet for a subject to be evaluated (or an evaluation subject) (Object) issued by the public institution, and the like.

The client terminal 20 may be a variety of devices such as a user computer, a notebook, a tablet, a handheld PC, a PDA (Personal Digital Assistants), a mobile phone, and an electronic document program capable of opening and editing an electronic document. A plug-in that can generate and add a stamp token is provided.

The server 40 generates a timestamp token including time information and provides the time stamp token to the client terminal 20 when there is a time stamp issuance request.

The server 40 is a comprehensive concept including all the configurations for receiving a timestamp issue request message from the client terminal 20 and generating a reliable timestamp token including accurate time information. The server 40 corresponds to a trusted third party as a subject providing time information that can prove the existence of data at a specific point in time. For example, the server 40 may be a concept that includes a Time Stamping Authority (TSA), a Time Authority (TA), and a Certificate Authority (CA).

That is, the server 40 may be a set of a plurality of server devices connected through a network.

Meanwhile, as described above, the client terminal 20 is provided with a time stamp plug-in (not shown) for executing the time stamp issuance and verification function for the electronic document as well as the electronic document program.

The timestamp plug-in may be provided in the form of a dynamic link library (DLL). As such, it is provided as a dynamic link library and plug-in to an electronic document program, so that the time stamp function can be easily extended to an existing electronic document program. On the other hand, the dynamic link library for the time stamp plug-in can integrate and store an electronic document identification image in which a time stamp is visually converted.

In addition, the time stamp plug-in may generate an electronic document identification image that can confirm the authenticity, creation time, and issue serial number of the electronic document and insert the electronic document identification image on the electronic document. At this time, the electronic document identification image may be implemented with a two-dimensional QR code.

In this case, the third party can read the QR code inserted in the electronic document and confirm the subject (patient), author (charge), creation time and serial number of the electronic document.

Hereinafter, an embodiment of a method for providing an original proof electronic document using a time stamp according to the present invention will be described in detail.

FIG. 2 is a flowchart showing an embodiment of a method for providing an original proof electronic document using a time stamp according to the present invention.

First, in the present invention, a generated electronic document includes content for a third party. Hereinafter, an embodiment of the present invention will be described with reference to an example in which a medical recording sheet for a patient is generated as an electronic document.

As shown in FIG. 2, the method of providing the original proof electronic document using the time stamp according to the present invention starts with the user performing the user authentication for creating the electronic document through the client terminal 20 (S 110 ). At this time, the user is the creator of the electronic document, and in this embodiment, the medical staff corresponds to the user.

At this time, the user authentication may be performed by an electronic certificate or the like.

Next, the creator (medical staff) creates the electronic document 30 through the client terminal 20 (S120).

Thereafter, when the creator stores the electronic document 30 (S130), the client terminal 20 issues a request to issue a time stamp to the electronic document 30 to be stored, and performs a time stamp inserting process.

At this time, the time stamp inserting process for the electronic document 30 is performed at the same time as storing the electronic document 30, when the time stamp is inserted by the choice of the creator, the author collects the created electronic document, Which is intended to immediately check the electronic document created immediately after the medical act.

When the author stamps the electronic document 30 (S130), a timestamp plug-in installed in the form of a plug-in to the electronic document program is stored in the electronic document 30, A hash code for issuing a time stamp for the electronic document corresponding to the program is generated (S140).

At this time, the hash code is for issuing a time stamp token in the server 40, and preferably includes information about the electronic document subject (patient) and information about the electronic document creator (medical staff).

Then, the plug-in of the client terminal 20 requests the server 40 to issue a time stamp (S150).

Then, the server 40 generates the time stamp token based on the issuance request and transmits it to the client terminal 20 (S210, S220).

Next, the server 40 distinguishes the electronic document based on the electronic document subject (patient) and the electronic document creator (medical staff) from the transmitted hash code, and cumulatively stores the electronic document issuance history for the same subject by the same author (S230) .

Of course, the timestamp token generated in step 210 includes an electronic document issuing serial number for the same subject by the cumulative same author.

The timestamp token includes time information and a hash value of the electronic document. At this time, the time stamp token may satisfy the RFC3161 standard.

That is, the timestamp token includes reliable time information on which the timestamp is issued and a hash value of the electronic document requesting timestamp issuance. At this time, the hash value may be recorded together with the hash algorithm identifier, the hash algorithm name, and the hash length.

In addition, the time stamp token may include version information of the time stamp, policy identifier information, serial number, creation date, time stamp server name, and certificate information. In particular, the certificate information may include a timestamping station (TSA) certificate and a visual attribute certificate.

Meanwhile, the client terminal 20 receiving the timestamp token inserts the timestamp token into the electronic document (S310, S320).

In step S330, the client terminal 20 generates an electronic document identification image so that the third party can confirm the information included in the time stamp token through the document.

The electronic document identification image may be composed of various types of images, but it may preferably be implemented as a QR code.

Preferably, the electronic document identification image includes information on subject information, author information, creation time information, and issue serial number.

Thereafter, the client terminal 20 inserts the electronic document identification image into the electronic document and stores the inserted electronic document identification image (S340).

FIG. 3 illustrates an example in which the subject verifies whether the electronic document is authentic or not through the electronic document generated through the process described above.

As shown in the figure, a QR code containing patient information, medical care provider information, creation date (time) information, and issue serial number is generated in the electronic document (prescription) generated by the present invention, Respectively.

Then, when the patient recognizes the QR code through a QR code recognition terminal (such as a smart phone), the patient name, the slope of the charge, the creation time, and the issue serial number can be confirmed.

Therefore, the patient can easily identify whether the doctor has a prescription missed intentionally or negatively by checking the serial number of the issued prescriptions.

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

The present invention relates to a method of providing an electronic document capable of verifying the timing and authenticity of an electronic document using a time stamp, and a method of providing an electronic document using a reliable time stamp and an electronic signature, It is possible to verify that the plug-in is created by a specific person without being up / modulated at the point of time, and the verification can be easily performed without a third party having a plug-in installed device.

10: Subject 20: Client terminal
30; Electronic document 40: Server

Claims (6)

(A) generating a hash code for time stamp issuance by a time stamp plug-in installed in a client terminal in a form of a plug-in to an electronic document program;
(B) the server generates a time stamp token through the hash code and the time information, and transmits the time stamp token to the client server;
(C) generating an electronic document identification image by which the cleansing terminal confirms whether the electronic document is authentic and the generation time through the time stamp token; And
(D) inserting the electronic document identification image into a predetermined area of the electronic document by the client terminal.
The method according to claim 1,
Wherein the electronic document identification image comprises:
Dimensional QR code image using the time stamp.
3. The method of claim 2,
The hash code includes:
And information on a subject of the electronic document and creator information,
Wherein the electronic document identification image comprises:
Electronic document subject information, electronic document creator information, and creation time information of the electronic document.
The author inserts the author information and the creation time information into the electronic document with respect to the electronic document containing the record content for the created author and confirms whether the electronic document is authentic by checking the information inserted by the subject in the electronic document A method for providing an electronic document,
(a) generating a hash code for time stamp issuance by a time stamp plug-in installed in a client terminal in a form of a plug-in to an electronic document program;
(b) inserting a timestamp token generated through the hash code and time information into the electronic document;
(c) generating an electronic document identification image capable of confirming whether the electronic document is authentic and burned out through the time stamp token; And
(d) inserting the electronic document identification image into a predetermined area of the electronic document by the client terminal,
The hash code includes:
And information on a subject of the electronic document and creator information,
Wherein the electronic document identification image comprises:
Wherein the electronic document is a two-dimensional QR code image including electronic document subject information, electronic document creator information, and electronic document creation time information.
The method according to claim 3 or 4,
Wherein the electronic document identification image comprises:
And further comprising issuance serial number information of the electronic document by the same author to the same subject.
6. The method of claim 5,
The server comprises:
And the cumulative number of times of issuance of the electronic document by the same author to the same subject is stored.

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