KR20150124087A - Mobile document conversion system and method of encryption applied - Google Patents

Abstract

Disclosed are a system and a method of a document converter applying mobile encryption. The system comprises: a conversion unit for analyzing a file including any one among an office file, an HWP, a PDF, and a document file, and converting the file to an image file; an encryption unit for issuing and encrypting a unique key according to each content ID by dividing the converted file into a block format; and an output unit for sending each of the encrypted block format files to a place where a user request comes from.

Description

[0001] The present invention relates to a mobile document conversion system and method,

More particularly, the present invention relates to a system and method for converting a mobile-encrypted document, and more particularly, to a system and method for converting a mobile-encrypted document into a mobile- System and method.

Mobile Internet service is activated and smart phone and tablet PC

Users can read document files created in various formats using the devices.

      However, behind mobile Internet services that many people use, they have a huge security problem. In fact, security is one of the biggest issues in the IT industry in modern society. (DRM), information leakage prevention (DLP), network security (DLP), and other information security problems to the security companies. Trends in inquiries about security-related solutions such as access control (NAC) and DB security

to be.

Therefore, modern document converters are required to convert various types of documents and convert documents in all kinds of devices. Encryption of the documents is necessary to cope with situations in which valuable information and data of users are captured and exposed to unauthorized users And to provide a system and method that can do that.

In addition, many users should not affect the processing speed and response speed of document encryption even when using a document converter,

System and methodology.

Korean Patent Registration No. 10-0462592-0000 Document Conversion Apparatus and Method A apparatus and method for converting document) Korea Registered Patent No. (10-0702585-0000) Document Security Batch Converter ( Batch Converter for Document Security)

none

One embodiment of the present invention provides a system and method for servicing document conversions in real time for all kinds of devices

An embodiment of the present invention provides a system and method for preventing a user who has not been authenticated by using a block encryption module of a converted document.

In one embodiment of the present invention, a document conversion request is transmitted at a rate

And provides a system and method for service.

The mobile encryption application document conversion system according to an embodiment of the present invention includes a conversion unit for performing a conversion on a document requested by a user, a key generation unit for generating a unique key for encrypting the converted document, And encrypts the document in a block form.

The conversion unit converts a document such as an Office file, HTML, HWP, PDF, etc. requested by the user into an image form, determines a conversion method through the extension of the file,

Once the converted file is stored in the File DB, if the file is requested to be operated again, it includes the step of providing the information again to the user without performing additional conversion work.

The key generator generates each unique key value for the document file in the form of a block, and when a certain amount of requests is received by using the Klaus server

You can increase the server to keep the processing speed. Also, each time a request for a document is made, the DB is checked whether there is a key value for the document, and if it exists, the key value is used as it is, and if not, a new key is generated and stored in the DB.

The encryption unit uses the unique key value generated by the key generation unit to generate a block type

And encrypting the files.

One embodiment of the present invention utilizes a document converter module to convert all types of devices

It is possible to provide a service for viewing various documents in real time.

An embodiment of the present invention can cope with a case in which an unauthorized user seizes the encrypted file by encrypting it.

An embodiment of the present invention can cope with a conversion request of a predetermined amount or more through a flexible server.

1 is a block diagram illustrating an overall system of a mobile encryption application document converter.
2 is a block diagram showing the configuration of the encryption unit.
3 is a flow chart illustrating a method of a mobile encryption applied document converter in accordance with an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and accompanying drawings, but the present invention is not limited to or limited by the embodiments.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terminology used herein is a term used for appropriately expressing an embodiment of the present invention, which may vary depending on the user, the intent of the operator, or the practice of the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification.

1 is a block diagram illustrating an overall system of a mobile encryption application document converter.

Referring to FIG. 1, a mobile encryption application document converter system 100 of the present invention,

A cryptographic unit 120, and an output unit 130. The cryptographic unit 120 and the cryptographic unit 120 are connected to each other.

The conversion unit 110 converts document files such as office files, HTML, HWP, and PDF into image format JPG format. When you receive a request for a file for the first time, you decide how to convert it through the file's extension.

The encryption unit 120 divides the converted document file into blocks and performs encryption.

Hereinafter, a detailed description will be given with reference to FIG.

After the converted file is encrypted, the output unit 130 converts

And sends the information of the file.

2 is a block diagram showing the configuration of the encryption unit. 2,

(200) includes a key issuing unit (210), a storage unit (220), and an encryption unit (230).

According to one aspect of the present invention, a mobile encryption application document converter system 100

Converts one or more types of documents through the conversion unit 110, and proceeds encryption through the encryption unit 200.

A unique key is issued according to the document block through the key issuing unit 210,

(220). At this time, the content key

Retrieve the DB without regenerating the key and bring up the key value.

When a key value for the document is generated, the encryption unit 230 uses the key value

Proceed with encryption. Encryption and decryption can be performed using the key value assigned to each block unit.

3 is a flow chart illustrating a method of a mobile encryption applied document converter in accordance with an embodiment of the present invention.

Referring to FIG. 3, in step 310, the method of the mobile-encrypted document converter of the present invention converts document files such as office files and HWPs into image formats for viewing on all types of devices.

According to one aspect of the present invention, step 310 may be performed on a document file such as an Office file, HWP, PDF,

To identify the document file through the extension, and to convert the file according to each extension.

The method of encrypting the transformed document of the present invention comprises the steps of:

If it exists, this file is blocked and encrypted.

According to one aspect of the present invention, a method for encrypting a converted document comprises:

And providing a Content ID to the corresponding block, generating a key for each Content ID, and proceeding encryption using the corresponding key value.

A method of transmitting information of a converted file of the present invention is a method of transmitting information of a file to a place where a document conversion is requested after all steps 310 and 320 are performed in step 330

All.

According to an aspect of the present invention, a block of a file to which a key value is assigned according to each ContentID includes a ContentID of the converted file block and a corresponding key value in an XML format.

The method according to the embodiment may be implemented in the form of a program command through a DataBase and recorded in a DB capable of storing each ContentID and key value.

Although the embodiments have been described above with reference to the limited embodiments and drawings

And various modifications and changes may be made thereto by those skilled in the art. For example, it should be understood that the techniques described may be performed in a different order than the methods described, and / or that components of the described systems, structures, Appropriate results can be achieved even if the other key is generated by water, or encryption is performed in another block form.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

110:
120:
130:

Claims (3)

[Configuration for providing the mobile encryption application document converter system of the present invention
Generalization and privatization]
A conversion unit for analyzing a file including any one of an Office file, an HWP, a PDF, and a document file and converting the file into an image file;
An encryption unit for dividing the converted file into blocks and issuing and encrypting a unique key according to each ContentID;
An output unit for sending the files of each block form made up to the encryption to the place where the user's request comes;
A mobile encryption application document converter system
[Subordinate clause for dividing the converted file into blocks and assigning a key value to each block to carry out encryption]
The method of claim 1, wherein
The encryption unit
An encryption unit for converting document files such as Office file, HWP, and PDF into image form and then dividing the document file into blocks to perform encryption;
A key issuing unit for blocking the corresponding file and issuing a key for each Content ID when it is determined that the document file is converted into an image form;
A storage unit for receiving a key value for each ContentID and storing the key value in the DB;
An encryption unit for encrypting each ContentID using a key value;
A mobile encryption application document converter system.

[Dependent on securing the configuration to send the information of the encrypted file to the place of request
The method of claim 1, wherein
An output unit for transmitting the information of the encrypted file to the place where the request is received
A mobile encryption application document converter system.

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