Nesnelerin İnternetinde Rassal ve Kontrollü Bekleme Süresi İle Zamanlama Analizi Saldırılarının Önlenmesi

Yıl 2021, , 61 - 69, 20.10.2021

Muhammed Saadetdin Kaya , Kenan İnce

https://doi.org/10.53070/bbd.990915

Öz

Yaygınlaşan Nesnelerin Interneti konsepti ile birlikte çeşitli güvenlik zaafiyetlerinin önlenmesi daha fazla önem arz etmektedir. Bu zaafiyetler doğrudan veya dolaylı olarak ortaya çıkabilmektedir. Her türlü istenmeyen veri sızıntısı bütün sistem için tehlike teşkil etmektedir. Bir sistemden elde edilen zamanlama bilgisinden faydalanılarak yapılan Zamanlama Analizi Saldırıları; bir işlemin veya algoritmanın değişken şartlara verdiği tepkinin yorumlanmasıyla, sistem hakkında bilgi edinmeyi amaçlar. Bu çalışmada, bir haberleşme fonksiyonunun en iyi ve en kötü durumdaki işleme sürelerine bakılarak rassal olarak geciktirilmesi ile gözlemlenen işlem süresi bilgisinin anlamsız hale getirilmesi amaçlanmıştır. Yapılan deneysel çalışma sonucunda zamanlama bilgisi ile anahtar eşleşme oranında doğrusal ilişki ve sunulan yöntemin bu doğrusal ilişkinin gizlenmesi için önemli bir alternatif olabileceği görülmüştür.

Anahtar Kelimeler

Yan-kanal Saldırıları, Nesnelerin İnterneti, Zamanlama Analizi Saldırıları, Kriptografik Analiz, Rassal Sayı Üreteci

Destekleyen Kurum

İnönü Üniversitesi

Proje Numarası

FBG-2020-2143

Teşekkür

Bu çalışma, İnönü Üniversitesi Bilimsel Araştırma Projeleri Bölümü'nün (BAPB) FBG-2020-2143 sayılı projesi ile desteklenmiştir. Yazar, değerli geri bildirimleri için İnönü Üniversitesi BAPB’ye teşekkür eder.

Preventing Timing Analysis Attacks with Random and Controlled Waiting Times

Öz

Along with the widespread concept of the Internet of things, it became more important to prevent various security weaknesses. These weaknesses can occur directly or indirectly. Any unintended information leakage is a danger to whole system. Timing analysis attacks with the use of timing information obtained from a system; they aim to obtain information about the system by interpreting the response of a process or algorithm to variable conditions. In this study, it was aimed to make the information about the observed processing time meaningless by randomly delaying the communication function by looking at the processing times in the best and worst state. As a result of the experimental study, it was observed that the linear relationship between timing information and the key match ratio and the presented method can be an important alternative to hiding this linear relationship.

Anahtar Kelimeler

Side-channel Attacks, Internet of Things, Timing Analysis Attacks, Cryptography, Cryptographic Analysis, Random Number Generator

Proje Numarası

FBG-2020-2143

Kaynakça

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