Abstract: A network communication method comprises connecting, by a server and client, through networks and sharing a symmetric key, generating, by the server, a credential by which the client can be identified, through random number generation, and sharing the credential with the client, generating, by the client, transmission data containing a serial number indicating the sequence of the transmission data, and transmitting a message to the server, and generating, by the server, transmission data containing a serial number indicating the sequence of the transmission data, and transmitting a message to the client.

Abstract: The present invention relates to a UDP networking method which improves the stability against a data damage occurring during a transmission by configuring an additional header area in a UDP transmission packet. The UDP (User Datagram Protocol) networking method for stability improvement may include the steps of: (A) generating, by a transmission terminal, a UDP packet by fragmenting transmission data on a packet basis; (B) transmitting, by the transmission terminal, the generated UDP packet to a reception terminal; (C) determining, by the reception terminal, whether the received UDP packet has an error; (D) storing, by the reception terminal, error information on UDP packet reception and detecting an error pattern; (E) transmitting, by the reception terminal, the detected error pattern to the transmission terminal; and (F) resetting, by the transmission terminal, a packet transmission pattern by reflecting the error pattern. The present invention can ensure stability in processing of repeatedly received data.

Abstract: A network communication method comprises connecting, by a server and client, through networks and sharing a symmetric key, generating, by the server, a credential by which the client can be identified, through random number generation, and sharing the credential with the client, generating, by the client, transmission data containing a serial number indicating the sequence of the transmission data, and transmitting a message to the server, and generating, by the server, transmission data containing a serial number indicating the sequence of the transmission data, and transmitting a message to the client. Accordingly, the present invention has an advantage in that when a connection between a server and client is interrupted, the connection can be automatically recovered using a credential, by which a connected terminal can be identified in a network environment between the server and the client, without a separate process for authenticating a reconnected terminal.

Abstract: The present invention relates to a UDP networking method which improves the stability against a data damage occurring during a transmission by configuring an additional header area in a UDP transmission packet. The UDP (User Datagram Protocol) networking method for stability improvement may include the steps of: (A) generating, by a transmission terminal, a UDP packet fey fragmenting transmission data on a packet basis; (B) transmitting, by the transmission terminal, the generated UDP packet to a reception terminal (C) determining, by the reception terminal, whether the received UDP packet has an error; (D) storing, by the reception terminal, error information on UDP packet reception and detecting an error pattern; (E) transmitting, by the reception terminal, the detected error pattern to the transmission terminal; and (F) resetting, by the transmission terminal, a packet transmission pattern by reflecting the error pattern. The present invention can ensure stability in processing of repeatedly received data.