KR20000031303A - Method for maintaining internet e-mail message - Google Patents

Abstract

PURPOSE: A method for maintaining internet E-mail message is provided to perform a guard function according to an important degree of a message. CONSTITUTION: A method for maintaining internet E-mail message comprises the steps of a transmission process of message management degree and a management process. The transmission process of message degree is to transmit a corresponding message to a server after composing a transmitting message comprising a message management degree in order to control a process of a received message according to a transmitter guard policy. The management process is to manage the transmitting message.

Description

Sensitivity Maintaining Method of Internet E-Mail Message by Originator's Request

The present invention relates to a method for managing the processing of a message received in an internet email system by a sender who is the creator of the message. The present invention relates to a method for maintaining confidentiality of an e-mail message by specifying whether it should be prevented and preventing leakage of a message due to neglect of management of a receiver.

As the use of Internet e-mail has expanded, the security of e-mail has become one of the biggest problems. In order to strengthen security functions, functions such as encryption and digital signature have been developed and used. In other words, as the importance of security functions in the e-mail system is emphasized, various techniques such as encryption and electronic signature have been developed, and are being used to enhance the reliability and stability of the e-mail contents.

However, the above method can improve the reliability and security of the e-mail itself, but has a problem in that it does not provide a function for enabling a safe processing after the message is received.

These features focus on the security of the content of the email message itself. Therefore, the emphasis is on protecting the contents of the message from third parties, and the function of preventing the contents from leaking after the message arrives at the destination is weak. Therefore, there is a need for a method in which a sender specifies a processing method after a message is received so that the message can be processed according to the sender's intention.

Moreover, since not all emails require expensive security functions such as encryption, there is a need for a method for maintaining the confidentiality of emails according to the required level of security.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The present invention designates a method of handling after a message is received when an e-mail sender receives a message, thereby preventing a message from being leaked due to neglect of management of the receiver, and The goal is to provide a method for maintaining the confidentiality of Internet e-mail messages that enables efficient automatic management of messages without changing servers or various e-mail standard protocols.

1 is a diagram illustrating a transmission message according to a sender request in an internet e-mail system according to the present invention;

2 is a flowchart illustrating a process of processing a received message according to a sender request of the present invention.

* Explanation of symbols for main parts of the drawings

100, 400: Client

200: Server

300: mailbox

E-mail message confidentiality maintaining method of the present invention for achieving the above object,

In order to control the processing of the received message according to the security policy of the sender, a first step of creating a transmission message including a message management level and transmitting the message to the server, and the message sent from the first step And a second process of determining and managing whether to perform the operation requested by the receiver according to the request of the sender.

Preferably, the second process,

The first step, where the client compares the type of command indicated by the message receiver with the message management class code that the sender specified when composing the message, to determine whether the receiver's request was forbidden by the sender, or if the sender requested automatic deletion of the message. A second step of, if the recipient requests printing, copying, storing, or forwarding of the message, checking whether the command is prohibited by the sender, and performing the command only if it is not prohibited, and the command If it can not be performed or if the message is deleted, it comprises a third step of generating a corresponding event.

According to a preferred embodiment of the present invention, the security function can be easily performed without the addition of a separate security product and without regard to the various e-mail protocols currently used.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The e-mail system of the present invention allows each user to determine how to handle a message when writing the message, and assign the message to an X-sensitivity header. The receiving client determines whether to perform the operation by checking the contents of the message or checking the contents of the X-sensitivity header of the message when executing the command.

When checking the contents of a message, if the automatic deletion is requested by checking the contents of the header, the message is deleted from the mailbox after searching. When the receiver requests printing of the message, the receiver checks whether printing is prohibited by the sender, and then prints the message according to its contents or generates a non-printing event. Even when the receiver requests forwarding, it checks whether forwarding is prohibited and generates a forwarding or prohibiting forwarding event. Even when the receiver requests to save or copy the message, the contents of the header designated by the sender are checked to determine whether to perform the operation requested by the receiver according to the sender's request.

1 is a diagram illustrating a transmission message according to a preferred embodiment of the present invention.

In a typical message creation method by the client 100, as shown in FIG. 1, a message is created, including a Create Content and a Make Header, by a Mail Create Request. (Create Message)

In the present invention, in order to enable message management according to the sender's request, the client 100 requests the sender to write the contents of the X-sensitivity header assigned different management grades according to the importance of the message to be transmitted. It further includes (S110).

For example, the sender can specify a flag in the header requesting automatic deletion of the message. Also, the sender may designate a prohibition of printing, forward prohibition, copy prohibition, storage prohibition, or the like according to the importance of the message to be transmitted.

As such, when the preparation of a message having an appropriate level specified according to the characteristics of the message is completed, the server 200 requests a transmission of the corresponding message (Send Message).

2 illustrates a process of processing a received message according to a sender request. First, when a receiver retrieves a message delivered to his or her mailbox 300, the client 400 displays a message list to the receiver (S410). One of them is selected (S412), and the command instructed by the receiver is read (S414).

Subsequently, the receiver or the user determines whether to display the message (S420). If the receiver commands the display of the message, the client 400 displays the message (S432) and reads the X-sensitivity header (S434).

If the management level specified in the header requests automatic deletion (S436), the message is deleted from the mailbox 300 (S438). After deletion, an event indicating that the message is deleted by the sender request is generated (S460).

In addition, when the receiver instructs the client 400 to print, copy, store, and forward the message (S440), the client 400 reads the X-sensitivity header of the message (S452) and checks the contents (S454). .

At this time, if the command indicated by the receiver is specified in the X-sensitivity header, it generates an event indicating that the command is prohibited by the sender (S460). If the command indicated by the receiver is not specified in the header, the corresponding command is performed (S470).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawing.

As described above, according to the present invention, by allowing the sender to designate a management method of the message created by the sender, more various functions can be provided to the e-mail user.

The sender can prevent the leakage of undesired message contents, and the receiver does not need to do anything to maintain message confidentiality.

With the proliferation of e-mail, there is a need for enhanced security, but most e-mail does not require high security. By allowing message management by the sender, it is easier to maintain the confidentiality of messages and, together with other security features, to create a more complete secure email system.

In addition, by having the X header and the client perform the message management function of the sender, there is an advantage that the existing server can be used without modification, and the e-mail exchange with the client user who does not provide this function is also possible.

According to the present invention, as much security as necessary according to the importance of a message is possible, the overhead of implementing a security function can be minimized.

Claims (2)

A first step of creating a transmission message including a message management level and transmitting the message to a server so as to control the processing of the received message according to the security policy of the sender; And Method for maintaining the confidentiality of the message by the sender request in the Internet e-mail system, characterized in that the second step of determining and managing whether to perform the operation requested by the receiver according to the request of the sender for the message sent from the first process . The method of claim 1, wherein the second process, A first step of the client comparing the type of command indicated by the message receiver with a message management class code designated by the sender when composing the message, to determine whether the receiver request is prohibited by the sender; If the sender requests automatic deletion of the message, the message is deleted, and if the recipient requests to print, copy, save, or forward the message, check whether the command is prohibited by the sender, Performing a second step; And And a third step of generating a corresponding event when the command cannot be performed or when the message is deleted.