Chaos-based stream cipher for gigabit ethernet
Adrián Pérez-Resa, Miguel Garcia-Bosque, Carlos Sánchez‐Azqueta, Santiago Celma · 2018
A new stream cipher scheme for encrypting optical Gigabit Ethernet communications is presented in this work. The proposed cipher scheme is based on chaotic map called Skew Tent Map and is suitable for ciphering the 8b10b symbols flow at Ethernet Physical layer. The implementation of this system has been carried out on an FPGA (Field Programmable Gate Array) device. With this method it is possible to cipher data traffic achieving no overhead and no throughput losses. In addition, as encryption is performed at physical layer, the data traffic pattern is completely obfuscated, which provides higher security.