saujs Sakarya University Journal of Science 2147-835X Sakarya University 10.16984/saufenbilder.506554 Computer Software Bilgisayar Yazılımı Encrypted Data Transmission Model For Ethernet LANs https://orcid.org/0000-0002-8902-0934 Koçak Cemal Gazı University https://orcid.org/0000-0002-9611-9588 Durak Murat Gazı University 08 01 2019 23 4 641 649 01 02 2019 02 14 2019 Copyright © 1997, Sakarya University Journal of Science 1997 Sakarya University Journal of Science

Despite many research and development efforts in the field of datacommunication security, the security of the local area network (LAN's) is stillnot fully resolved. In this work, we proposed a model of encryption of the datafield in the Ethernet frame to create secure Ethernet LANs. In this model, thedata field in the Ethernet frame is encrypted and sent to the destination. The1500-byte data field, defined as the standard for the Ethernet frame, isdivided into 1497 bytes as the field used for the data. The remaining 2-bytesare defined as Message Body Length (MBL) and 1-byte as Message Number (MN). Themessage number is used to verify the encrypted data and the MBL is used for thelength of the message. The proposed model provides secure data communicationover Ethernet local area networks. With this model, safe data communication isprovided on the Ethernet LAN. Even if attackers obtain the packet at the timeof communication, the encrypted message is difficult to decipher.

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