Diseño de un modelo de seguridad orientado a las redes de telefonía IP de Colombia basado en el protocolo STIR/SHAKEN para evitar la suplantación de identidad de números telefónicos por medio de herramientas de simulación

Abstract

This thesis proposes the design of a security model based on the STIR/SHAKEN protocol, aimed at preventing the identity spoofing of telephone numbers in IP telephony networks in Colombia. Through a methodological framework consisting of four main phases, an analysis of the current global landscape related to the implementation of the STIR/SHAKEN protocol is conducted. The security models currently implemented in IP telephony networks, specifically within the Colombian context, are identified to tailor the proposed model to the country's specific conditions and challenges. The protocol's functionality is then validated in a controlled simulation environment, allowing for a comprehensive performance evaluation. Finally, an analysis of the obtained results is presented, based on which a guide for the implementation of the STIR/SHAKEN protocol in Colombian IP telephony networks is generated. The primary contributions of this thesis include providing a better understanding of the specific requirements for implementing the STIR/SHAKEN protocol in the Colombian context. By addressing the lack of specific regulations and the absence of robust security mechanisms, this project aims to enhance protection against telephone number identity spoofing in Colombian VOIP networks.