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Riesgo de escuchas en canales de terahercios mediante cubiertas en superficies onduladas
Optics express
|December 19, 2025
Resumen
Las superficies metálicas onduladas (MWS) para comunicaciones de terahercios (THz) siguen siendo vulnerables a las escuchas incluso cuando están cubiertas por materiales interiores comunes. Estos materiales redistribuyen, en lugar de eliminar, las amenazas de seguridad en las redes THz.
Área de la Ciencia:
- Comunicaciones Inalámbricas
- Electromagnetismo
- Seguridad de la Información
Sus antecedentes:
- Los sistemas de comunicación de terahercios (THz) prometen altas tasas de datos para futuras redes inalámbricas.
- La susceptibilidad al bloqueo en los enlaces THz crea brechas de cobertura y riesgos de seguridad en la capa física.
- Se exploran las superficies metálicas onduladas (MWS) para la retransmisión no de línea de visión (NLOS) para extender la cobertura THz.
Objetivo del estudio:
- Investigar las características del canal de terahercios y las vulnerabilidades de seguridad cuando las MWS están ocultas.
- Analizar el impacto de los materiales interiores comunes (papel tapiz, cortinas, yeso) en el rendimiento de las MWS.
- Evaluar la efectividad del monitoreo convencional de retrodispersión contra las escuchas con MWS cubiertas.
Principales métodos:
- Caracterización de las propiedades del canal THz en el rango de 113-170 GHz con MWS cubiertas.
- Simulación y análisis de la propagación y reflexión de la señal a través de diversos materiales de ocultación.
- Evaluación de la viabilidad y detectabilidad de las escuchas utilizando técnicas de monitoreo estándar.
Principales resultados:
- Los materiales de recubrimiento alteran, pero no eliminan, las oportunidades de escucha para las señales de THz.
- Existen escenarios de interceptación persistentes y factibles que no son detectables mediante el monitoreo convencional de retrodispersión.
- La redistribución de la señal a través de los materiales crea nuevas y sigilosas vulnerabilidades de seguridad.
Conclusiones:
- Las MWS ocultas en implementaciones interiores prácticas introducen vulnerabilidades de seguridad significativas y no obvias.
- Los métodos actuales para detectar escuchas en sistemas THz son insuficientes para MWS cubiertas.
- Se requieren mecanismos de seguridad novedosos para abordar las amenazas únicas que plantean los elementos reflectantes ocultos en las redes THz.
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