Classification of Classical Cryptography Algorithms Through Encrypted Data With Using Artificial Neural Networks

Öz

The main aim of cryptography algorithms is to prevent unauthorized people from attaining data that transmitted from one node to another or stored in any environment, even if it is captured, making it impossible to decrypt. Today, basis of many different types of encryption methods is based on classical encryption algorithms. Although many methods which have more complex mathematical infrastructure are tried to solve the data security problem become important by the advancement of technology. The hardware implementation difficulties of these complex methods have led the researchers to the different areas. One of these areas is ANN (Artificial Neural Networks). In the study area called "Neural Cryptography" which is formed by the combination of cryptology and ANN, ANN models are used in both encryption and cryptanalysis phase. In this study, we prepared a Neural Cryptography application and have tried to determine which data is encrypted by which classical method with using ANN. 

Anahtar Kelimeler

• Classical Encryption
• Symmetric Cipher Algorithms
• Artificial Neural Networks

YAPAY SİNİR AĞLARI İLE KLASİK KRİPTOGRAFİ ALGORİTMALARININ ŞİFRELİ VERİLER ÜZERİNDEN SINIFLANDIRILMASI

Öz

Şifreleme bilimi olarak ifade edilebilecek olan kriptoloji için kullanılan algoritmaların temel amacı bir noktadan bir noktaya iletilen, ya da herhangi bir ortamda saklanan verilere izinsiz kişilerin erişmesini engellemek ve bu veriler ele geçirilse dahi verilerin anlaşılmasını imkânsız hale getirmektir. Günümüzde, birçok farklı tipteki şifreleme algoritmalarının temeli klasik simetrik şifreleme yöntemlerine dayanmaktadır. Gelişen teknolojiyle ortaya çıkan veri güvenliği sorununu çözmek için daha karmaşık matematiksel altyapıya sahip yöntemler denense de donanımsal gerçekleme zorlukları araştırmacıları farklı arayışlara yöneltmiştir. Bunlardan biri de YSA (Yapay Sinir Ağları – Artificial Neural Networks)’dır. Kriptoloji ve YSA’nın birleşimi ile oluşan ve “Nöral Kriptografi” olarak adlandırılan çalışma alanında hem şifreleme hem de kriptanaliz aşamalarında YSA modellerinden faydalanılmaktadır. Bu çalışmada, bir Nöral Kriptografi uygulaması ile klasik simetrik şifreleme yöntemlerinden birkaçıyla şifrelenen verilerin, YSA yöntemi ile klasik şifreleme algoritmalarından hangisine ait olduğu tahmin edilmeye çalışılmıştır.

Anahtar Kelimeler

• Klasik Şifreleme
• Simetrik Şifreleme Algoritmaları
• Yapay Sinir Ağları

Kaynakça

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