Estrategia de cambio de seudónimo basada en la reputación de los vehículos vecinos en VANETs/Pseudonym change strategy based on the reputation of the neighbouring vehicles in VANETs
Esquemas de cambio de seudónimos han sido estudiados en VANETs para garantizar la propiedad de no rastreo de los vehículos. Este artículo propone una nueva condición basada sobre la suposición de que sí no hay vehículos maliciosos alrededor cuando un cambio síncrono activa, no hay riesgo de rastreo,...
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Published in | Dyna (Medellín, Colombia) Vol. 86; no. 211; p. 157 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Bogota
Universidad Nacional de Colombia
01.01.2019
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Abstract | Esquemas de cambio de seudónimos han sido estudiados en VANETs para garantizar la propiedad de no rastreo de los vehículos. Este artículo propone una nueva condición basada sobre la suposición de que sí no hay vehículos maliciosos alrededor cuando un cambio síncrono activa, no hay riesgo de rastreo, y el cambio de pseudónimo es extendido hasta un máximo tiempo de espera. Así, nuestra propuesta basada en una estrategia síncrona, adiciona a la condición de cambio, el chequeo del estatus de reputación de los vehículos vecinos. El estado de reputación es el resultado de discretizar la puntuación de reputación de los vehículos y es parte de los mensajes de seguridad difundidos periódicamente. La propuesta fue evaluada mediante simulaciones usando un escenario real. Los resultados mostraron una optimización en el uso de pseudónimos manteniendo niveles de anonimidad similar con otros esquemas. Pseudonym change schemes have been studied in VANETs to guarantee the property of untraceability of the vehicles. This paper proposes a new condition based on the assumption that if there are no malicious vehicles around when a synchronous change triggers, there is no risk of tracking, and the pseudonym change defers until a time threshold. Thus, our proposal based on a synchronous strategy to increase the anonymity set, adds to the change condition, the checking of the reputation status of the neighbouring vehicles. The reputation status is the result of discretizing the reputation score of the vehicles and it is part of the periodically broadcast beacon messages. The proposal was evaluated through simulations using a real scenario. The results showed an optimization in the use of pseudonyms maintaining similar anonymity levels with other schemes. |
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AbstractList | Esquemas de cambio de seudónimos han sido estudiados en VANETs para garantizar la propiedad de no rastreo de los vehículos. Este artículo propone una nueva condición basada sobre la suposición de que sí no hay vehículos maliciosos alrededor cuando un cambio síncrono activa, no hay riesgo de rastreo, y el cambio de pseudónimo es extendido hasta un máximo tiempo de espera. Así, nuestra propuesta basada en una estrategia síncrona, adiciona a la condición de cambio, el chequeo del estatus de reputación de los vehículos vecinos. El estado de reputación es el resultado de discretizar la puntuación de reputación de los vehículos y es parte de los mensajes de seguridad difundidos periódicamente. La propuesta fue evaluada mediante simulaciones usando un escenario real. Los resultados mostraron una optimización en el uso de pseudónimos manteniendo niveles de anonimidad similar con otros esquemas. Pseudonym change schemes have been studied in VANETs to guarantee the property of untraceability of the vehicles. This paper proposes a new condition based on the assumption that if there are no malicious vehicles around when a synchronous change triggers, there is no risk of tracking, and the pseudonym change defers until a time threshold. Thus, our proposal based on a synchronous strategy to increase the anonymity set, adds to the change condition, the checking of the reputation status of the neighbouring vehicles. The reputation status is the result of discretizing the reputation score of the vehicles and it is part of the periodically broadcast beacon messages. The proposal was evaluated through simulations using a real scenario. The results showed an optimization in the use of pseudonyms maintaining similar anonymity levels with other schemes. |
Author | Luz Marina Santos Jaimes Edson dos Santos Moreira |
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Title | Estrategia de cambio de seudónimo basada en la reputación de los vehículos vecinos en VANETs/Pseudonym change strategy based on the reputation of the neighbouring vehicles in VANETs |
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