Strengthened Key Method in Transition to Quantum Cryptology

Authors : Fatih Selvi, Mustafa Alkan

Pages : 892-905

Doi:10.29109/gujsc.1682989

View : 112 | Download : 99

Publication Date : 2025-09-30

Article Type : Research Paper

Abstract :This study aims to increase security during the transition period against the threats posed by quantum computers to existing cryptographic systems. Since it will take time for post-quantum cryptography standards to become fully applicable, especially asymmetric encryption methods face serious security risks. In this context, a hybrid encryption method that is more resistant to quantum computer attacks is proposed in the study. The proposed method aims to increase the security of asymmetric algorithms by using pre-shared symmetric key (PSK). In this approach, key distribution is made secure by using symmetric encryption algorithms resistant to quantum attacks such as AES-256. Thus, existing systems gain temporary protection against quantum threats and the transition process is managed more securely. This study examines the integration of symmetric and asymmetric encryption methods, evaluating the performance and potential security risks of the hybrid approach. It is aimed that the proposed method will contribute to the modernization of national and international cryptographic infrastructure and provide a critical Intermediate solution in the transition process to the post-quantum era.
Keywords : Kuantum bilgisayarlar, Kuantum sonrası kriptografi, hibrit şifreleme, önceden paylaşılan anahtar

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