COMMUNICATION DEVICE AND PACKET TRANSMISSION/RECEPTION PROGRAM

• Main Authors: YASUNO KAZUHIRO, HOSHINO KIYOHISA, SAKABE TETSUTA, NEKOTO KATSUHIKO, FUKUDA ISAMU, KAMEDA AKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 19.10.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

PROBLEM TO BE SOLVED: To provide a communication device that shortens transmission time of a packet.SOLUTION: A communication device for transmitting and receiving packets includes: a plurality of authentication generation processing units that are associated with different sequence number groups including consecutive sequence numbers and perform authentication generation processing in parallel to generate authentication information included in a packet on the basis of a sequence number allocated to the packet; a transmission unit that transmits the packet including the allocated sequence number to another communication device in order of completion of the authentication generation processing at the authentication generation processing units; a reception unit for receiving a packet from the other communication device; and an authentication processing unit that performs first authentication processing to authenticate the reception packet on the basis of relation between a sequence number of a preceding reception packet received before the reception packet and a sequence number of the reception packet of a sequence number group including the sequence number of the reception packet.SELECTED DRAWING: Figure 12 【課題】パケットの送信時間を短縮する通信装置を提供する。【解決手段】パケットを送受信する通信装置であって、連続するシーケンス番号を有する異なるシーケンス番号群をそれぞれ対応づけられ、パケットに割り当てたシーケンス番号に基づき前記パケットに含まれる認証情報を生成する認証生成処理を並列で実行する複数の認証生成処理部と、前記複数の認証生成処理部の認証生成処理が完了した順に、前記割り当てたシーケンス番号を含むパケットを他の通信装置に送信する送信部と、前記他の通信装置からパケットを受信する受信部と、前記受信パケットのシーケンス番号の属するシーケンス番号群の、前記受信パケットより前に受信した先行受信パケットのシーケンス番号と、前記受信パケットのシーケンス番号との関係に基づいて前記受信パケットの認証を行う第１認証処理を実行する認証処理部とを有する。【選択図】 図１２