A Robust Algorithm against Delay Cyber-Attacks in PTP applicable for the fGn Environment

Yehonatan Avraham, Monika Pinchas

نتاج البحث: فصل من :كتاب / تقرير / مؤتمرمنشور من مؤتمرمراجعة النظراء

ملخص

The Precision Time Protocol (PTP) applies for precise micro-seconds time synchronization for computer networks. Time synchronization (offset) and frequency synchronization (clock skew) can be achieved based on the hardware time stamps that the Master and Slave clocks are exchanging between them. PTP is applicable in many industrial and military systems or applications where micro-second accuracy is essential. Therefore, it makes PTP vulnerable to malicious Cyber-attacks that may take the computer networks out of sync. This work presents a robust algorithm against fixed delay Cyber-attacks in a network characterized by a fractional Gaussian noise (fGn) environment. The fixed delay Cyber-attack changes the fixed delay in the Forward or Reverse paths. The proposed algorithm detects and deletes suspicious time stamps and, for the first time, also estimates and completes those deleted time stamps. Namely, it estimates those time stamps without the fixed delay added by the delay Cyber-attack on the Forward or Reverse paths. The proposed algorithm is applied to the three recently presented clock skew estimators (the one-way delay (OWD) clock skew estimators for the Forward and Reverse paths and the two-way delay (TWD) clock skew estimator), proposed by the same authors. Simulation results confirm that our proposed algorithm against the delay Cyber-attack indeed preserves the clock skew performances of those three clock skew estimators.

اللغة الأصليةالإنجليزيّة
عنوان منشور المضيفSSPS 2024 - 2024 6th International Symposium on Signal Processing Systems
الصفحات63-68
عدد الصفحات6
رقم المعيار الدولي للكتب (الإلكتروني)9798400716171
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 22 مارس 2024
الحدث6th International Symposium on Signal Processing Systems, SSPS 2024 - Xi'an, الصين
المدة: ٢٢ مارس ٢٠٢٤٢٤ مارس ٢٠٢٤

سلسلة المنشورات

الاسمACM International Conference Proceeding Series

!!Conference

!!Conference6th International Symposium on Signal Processing Systems, SSPS 2024
الدولة/الإقليمالصين
المدينةXi'an
المدة٢٢/٠٣/٢٤٢٤/٠٣/٢٤

بصمة

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