Browsing by Author "Otero, Mari Carmen"
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Item Analysing encryption mechanisms and functional safety in a ROS-based architecture(2020-02-01) Larrucea, Xabier; González-Nalda, Pablo; Etxeberria-Agiriano, Ismael; Otero, Mari Carmen; Tecnalia Research & InnovationRobot Operating System (ROS) is a middleware for connecting different components of robots. However, its use is becoming more popular in other domains such as in the automotive sector where initial prototypes have been customized and deployed in cars for demonstrating different functional purposes. Nevertheless, ROS has not been yet tested enough to be used in secure and safety environments. For example, in order to strengthen our ROS architecture, we have encrypted the messages within it. Therefore, this paper analyses the impact of Advanced Encryption Standard (AES) encryption mechanism and the functional safety of our prototype. In this sense, we are considering encrypting messages and we assess the timing constraints, as suggested by the ISO 26262, required for assuring a secure communication between components.Item Analyzing a ROS based architecture for its cross reuse in ISO26262 settings(Springer Verlag, 2018) Larrucea, Xabier; González-Nalda, Pablo; Etxeberria-Agiriano, Ismael; Otero, Mari Carmen; Calvo, Isidro; Golfarelli, Matteo; Bellatreche, Ladjel; Jean, Stéphane; Nakamatsu, Kazumi; Ordonez, Carlos; Mery, Dominique; Benslimane, Djamal; Abdelwahed, El Hassan; Tecnalia Research & InnovationThe automotive industry is applying the latest technological advances in order to provide safety and security to drivers and pedestrians. In this sense, Robot Operating System (ROS) is used as a middleware to be adapted and deployed in cars. However, ROS has not been tested enough to be used in safety environments. Therefore, this paper reports an analysis of a ROS based architecture running in a prototype. We define a safety case based on the ISO 26262 Safety Element out of Context (SEooC) for its cross reuse, and we generate the required evidences related to the identified characteristics and thresholds. Goal Structuring Notation (GSN) is the notation used for the safety case definition and to argue conformance with respect to ISO 26262.