Kripto paralar (cryptocurrency), eşler arası (Peer-to-Peer) mimaride birbirine bağlı madenci düğümü adı verilen
bilgisayarlara ve blokzinciri yapısında tutulan kayıt sistemine dayanmaktadır. Bu sistemler sadece bir para birimi
sağlamamakta, bu altyapılar üzerinde çeşitli 'merkezi olmayan' (decentralized), dağıtık (distributed)
sistemler/yazılımlar tasarlanmaktadır. Bu çalışmada blokzinciri sisteminin nasıl çalıştığı, sağladığı veri bütünlüğü,
kullanılabilirlik, mahremiyet gibi güvenlik servisleri ve hata toleransı incelenmektedir. Blokzinciri yapısının;
nesnelerin interneti (Internet of Things), akıllı şehirler, kişisel verilerin korunması, bilgisayar ağları için kullanımı
gibi siber güvenlik konularındaki çalışmalar ele alınmaktadır. Blokzinciri uygulamalarındaki temel sorunlara ve olası
çözümler gözden geçirilmiştir. Bu tür çözümlerin ağ güvenliğinde kullanımına dair önerilere yer verilmiştir.
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