Encrypted Data Transmission Model For Ethernet LANs

Abstract

Despite many research and development efforts in the field of data communication security, the security of the local area network (LAN's) is still not fully resolved. In this work, we proposed a model of encryption of the data field in the Ethernet frame to create secure Ethernet LANs. In this model, the data field in the Ethernet frame is encrypted and sent to the destination. The 1500-byte data field, defined as the standard for the Ethernet frame, is divided into 1497 bytes as the field used for the data. The remaining 2-bytes are defined as Message Body Length (MBL) and 1-byte as Message Number (MN). The message number is used to verify the encrypted data and the MBL is used for the length of the message. The proposed model provides secure data communication over Ethernet local area networks. Even if attackers obtain the packet at the time of communication, the encrypted message is difficult to decipher.