Akış Çizgesi Tabanlı Sızma Tahmin Yöntemi

Öz

Bilgi Teknolojilerinin gelişimi ile birlikte sistem ve sisteme dahil olan varlıkların içinde bulunduğu tehditler artmaktadır. Bu sebeple bilgi güvenliğinin sağlanması daha da önem kazanmaktadır. Günümüzde tasarlanan bilgi sistemlerinin altyapısı genellikle bilgisayar ağlarına dayanmaktadır ve bu da bilgi sistemlerini saldırılara daha açık hale getirmektedir. Ağ güvenliğinin sağlanmasında Sızma Tespit Sistemleri (Intrusion Detection Systems, IDS) önemli bir araçtır. Sızma Tespit Sisteminde uygulanan teknikler ile saldırılar, ancak kısmen ya da tamamen gerçekleştikten sonra saptanabilmektedir; buna bağlı olarak saldırının kontrol altında tutulması ya da durdurulması zor olmaktadır. Bu nedenle yeni geliştirilecek olan IDS sistemlerine saldırıyı tahmin etme özelliği dahil edilmelidir. Bu çalışmada Bilgisayar ağlarına olan sızmaların önceden tahmin edilmesine yönelik bir yöntem önerisinde bulunulmuştur. Önerilen yöntem test edilerek sonuçlar verilmiştir.

Anahtar Kelimeler

• Sızma Tahmin Sistemleri, Grafa Dayalı Sızma Tahmini, İçerik Tabanlı İmza Çıkartılması, Hibrit İmza Tanımlaması

Intrusion Prediction Method Based on Flow Graph

Öz

Along with the improvement of Information Technologies, the threat; that the system and the included entities are in, has been increasing. Therefore ensuring information security gains more importance. The infrastructure of the information systems designed lately, is generally built upon computer networks; which makes information systems more prone to attacks. Intrusion Detection Systems are important tools in providing network security. The attacks in Intrusion Detection Systems (IDS) can only be detected after they occur partially or fully. And because of this, taking attacks under control or ceasing them is difficult. For this reason, attack prediction feature should be included to the new IDS systems to be designed. In this research; a method to predict intrusions through computer networks is suggested. Experimental results has been presented after testing the method.

Anahtar Kelimeler

• Intrusion Prediction Systems, Graph Based Intrusion Prediction, Content Based Signature Generation, Hibrit Signature Definition

Kaynakça

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