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A study of lightweight cryptography
Çamur, Zeliha; Doğanaksoy, Ali; Department of Cryptography (2020)
Technology is evolving rapidly and with technology, the internet is also changing. People used to use internet to connect to each other. But with the changes in recent years, the internet is starting to be used more to con...
On password-based authenticated key exchange (PAKE) protocols.
Tonga, Meryem; Doğanaksoy, Ali; Department of Cryptography (2020)
Authentication and key agreement protocols play an important role in today’s digital world. Key agreement methods mostly mimic Diffie-Hellman key exchange protocol, but unfortunately they are susceptible to man-in-the-midd...
Early warning model with machine learning for Turkish insurance sector
Koçer, Günay Burak; Selçuk Kestel, A. Sevtap.; Department of Financial Mathematics (2019)
Early warning models are needed to ensure that relevant stakeholders would not cause worse outcomes by ignoring the risks. Specific to the insurance sector, this risk is about meeting the obligations and its sustainability...
Modeling problems in a regional labor market - by mars and artificial intelligence - poland case
Gütmen, Selm; Kestel, Sevtap Ayşe; Department of Actuarial Sciences (2019)
Laborers’ skills are critical for advancement in the labor market in the economy and, eventually, in the areas of health, personal and social security, fulfillment, life quality and expectation. In this respect, it is esse...
Password based secure user authentication protocols in wireless sensor networks
Şen, Uğur; Doğanaksoy, Ali; Department of Cryptography (2019)
A wireless sensor network (WSN) is a network, which consists of resource-constrained devices like sensors. Using these sensors, it is possible to monitor and track wide environments. WSNs have become widespread as a promis...
Influence of renewable energy on carbon prices in the USA.
Coşkun, Hilal Esi; Selçuk Kestel, A. Sevtap.; Department of Financial Mathematics (2019)
In this study, the decrease in carbon prices is explained with increasing incentives to renewable energy sources and with economic growth, energy prices and carbon permits. For this purpose, we analyze the carbon market pr...
Modeling fx options in presence of stochastic volatility with overnight-indexed-swap-discounting
Tekten, Selin; Uğur, Ömür; Department of Financial Mathematics (2019)
This study investigates the time contingent behavior of risk factor USDTRY. Option pricing models Black-Scholes and Heston has been utilized to estimate the behavior. The adjusted Black-Sholes model is the current market p...
Secure message authentication protocol for can (controller area network).
Mertol, Sarp; Doğanaksoy, Ali; Department of Cryptography (2020)
The widespread communication of vehicles with each other and road infrastructure has raised concerns about how to ensure network security of the electronic control units (ECUs) in the vehicle. The fact that networks such a...
High performance number theoretic transforms in cryptography
Ulu, Metin Evrim; Cenk, Murat; Department of Cryptography (2020)
Theoretical advances in physics opened up a new window into quantum computation. This window rendered a number of mathematically hard problems unusable for cryptographic applications. For instance, Shor showed that it is p...
Housing market dynamics and advances in mortgages: option based modeling and hedging
Yılmaz, Bilgi; Selçuk-Kestel, A. Sevtap,; Department of Financial Mathematics (2019)
In the last two decades, academicians and professionals intending to study in any area of real estate and finance not only must master advanced financial mathematics concepts and mathematical/econometric models but also sh...