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Control de acceso basado en atributos para compartir datos espaciales geográficos utilizando blockchain y contratos

Song Li1,2, Wenfen Liu3,4, Yan Wu5

  • 1Joint International Research Laboratory of Spatio-temporal Information and Intelligent Location Services, Guilin, 541004, China. 21031102007@mails.guet.edu.cn.

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Este estudio presenta un marco novedoso que combina el control de acceso basado en atributos (ABAC) con blockchain y contratos inteligentes para compartir datos espaciales de forma segura. El nuevo sistema mejora la eficiencia y la seguridad en entornos descentralizados.

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Control de acceso basado en atributosBlockchainCompartición de datos espaciales geográficosOptimización metaheurísticaContratos inteligentesAlgoritmo mejorado de cometa de alas negras

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Área de la Ciencia:

  • Ciencias de la Computación
  • Seguridad de la Información
  • Sistemas de Información Geográfica

Sus antecedentes:

  • Los sistemas convencionales de control de acceso tienen problemas de escalabilidad, seguridad y transparencia en entornos distribuidos para compartir datos espaciales geográficos.
  • El intercambio seguro y eficiente de datos es fundamental para la planificación urbana, la gestión de desastres y la monitorización ambiental.

Objetivo del estudio:

  • Proponer un nuevo marco para compartir datos espaciales geográficos descentralizado, a prueba de manipulaciones y de grano fino.
  • Integrar el Control de Acceso Basado en Atributos (ABAC) con la tecnología blockchain y los contratos inteligentes.

Principales métodos:

  • El marco combina ABAC, blockchain, contratos inteligentes y un algoritmo mejorado de cometa de alas negras (UBK).
  • Las políticas de acceso y los registros de auditoría se almacenan en una blockchain privada utilizando un mecanismo de consenso de Prueba de Autoridad.
  • Se utiliza un algoritmo mejorado de cometa de alas negras (UBK) para un control de acceso mejorado.

Principales resultados:

  • El método propuesto reduce el tiempo de evaluación de políticas en un 70% y la sobrecarga de almacenamiento en un 52% en comparación con el ABAC tradicional.
  • Se logró una precisión del 98,2% en las decisiones de acceso.
  • Las pruebas de rendimiento indican una escalabilidad lineal del tiempo de evaluación y el almacenamiento, adecuada para la implementación a gran escala.

Conclusiones:

  • La integración de blockchain y contratos inteligentes garantiza la aplicación automatizada y auditable de las políticas de acceso.
  • El marco proporciona una solución descentralizada y a prueba de manipulaciones para compartir datos espaciales geográficos.
  • El sistema propuesto supera las limitaciones del control de acceso convencional en entornos distribuidos.