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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/73127

    Título
    Securecipher: An instantaneous synchronization stream encryption system for insider threat data leakage protection
    Autor
    Herrera Montano, Isabel
    Ramos Diaz, Juan
    García Aranda, José Javier
    Molina Cardín, Sergio
    Guerrero López, Juan José
    Torre Díez, Isabel de laAutoridad UVA
    Año del Documento
    2024
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Expert Systems with Applications, noviembre 2024, vol. 254, 124470
    Zusammenfassung
    The paper addresses the persistent challenge of insider threat in cybersecurity. Despite advancements in detection and prevention technologies and approaches, the complexity of digital environments and the ingenuity of insiders remain a problem. We propose an encryption algorithm called Securecipher, specifically designed to protect file systems from insider threats. The requirements that an algorithm must meet in this context are outlined, along with a method for its development. A context-based key generation mechanism is introduced, eliminating the need for key storage. A file marking mechanism is proposed that enables protection of the encryption algorithm against specific insider threat attacks. The proposed encryption algorithm meets the requirements posed by insider threats and has successfully passed 87 % of the NIST tests, equivalent to 13 out of 15 tests passed. Compared to conventional algorithms, the proposed encryption algorithm is more efficient in the context of insider threats, allowing access to distant locations instantaneously. In the specific case of the comparison with the RC4 algorithm, it showed a 0.25 s higher speed when accessing the last position of a 128-bytes file. Furthermore, a significant increase in the vocabulary of the encrypted text with Securecipher compared to the original text is observed, approximately 42 times more.
    Palabras Clave
    Encryption algorithm
    Decryption algorithm
    Secure file system
    Insider threat
    Information security
    ISSN
    0957-4174
    Revisión por pares
    SI
    DOI
    10.1016/j.eswa.2024.124470
    Patrocinador
    Ministerio de Ciencia e Innovación-Centro para el Desarrollo Tecnológico y la Innovación (CDTI) (IDI-20200518)
    Universidad de Valladolid y Banco Santander (contrato predoctoral UVa 2022)
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S0957417424013368
    Propietario de los Derechos
    © 2024 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/73127
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • DEP71 - Artículos de revista [358]
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    securicipher-instantaneous-synchronization-stream-encryption-system.pdf
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    Universidad de Valladolid

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