Abstract
In communication systems, data encryption and authentication algorithms are utilized for secure communication. The utilization of encryption and authentication algorithms depends on the field of application and required level of security. Recently, researchers are working on encryption based authentication algorithms, as both services of encryption and authentication are utilized in highly secure systems such as satellite communication. The Cipher based Message Authentication Code (CMAC) finds its relevance in many applications. CMAC algorithm has been implemented previously on software and hardware. But by assessment of previous work on hardware implementation it seems that competence could be enhanced by efficiently utilizing hardware resources. In this paper, an improved and efficient hardware implementation of CMAC algorithm on FPGA is proposed for satellites application. Our results showed improvement in consumption of FPGA area and time utilization as compared to previous implementations.
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