Jiménez Fernández, Carlos JesúsBaena Oliva, María del CarmenValencia Barrero, ManuelFernández, Juan M.Moreno, Alejandro2022-01-272022-01-272014Jiménez Fernández, C.J., Baena Oliva, M.d.C., Valencia Barrero, M., Fernández, J.M. y Moreno, A. (2014). A message transmission system with lightweight encryption as a project in a Master subject. En TAEE 2014: XI Tecnologias Aplicadas a la Ensenanza de la Electronica (Technologies Applied to Electronics Teaching) Bilbao, España: IEEE Computer Society.978-1-4799-6002-6https://hdl.handle.net/11441/129295Master subjects should ideally be very practical, to allow students to apply the knowledge they have acquired to the solving of specific problems. This paper proposes the design of a secure communications system using an SPI bus as a Master subject. The system designed uses a stream cipher to encrypt and decrypt data and allows transmission of random length messages. It also uses CRCs to check message integrity.application/pdf6engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Secure communicationsSerial busData encryptionMaster’s course teachinginfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1109/TAEE.2014.6900161