TASVIRLARNI SHIFRLASHDA KRIPTO TAHLIL VA XAVFSIZLIK JIHATIDAN BAHOLASH MEZONLARI
Keywords:
Kalit so’zlar: tasvirni shifrlash, kriptografik algoritm, AES, RSA, kripto tahlil, xavfsizlik mezonlari, entropiya, statistik hujum, NPCR, UACI., Keywords: image encryption, cryptographic algorithm, AES, RSA, cryptanalysis, security criteria, entropy, statistical attack, NPCR, UACI.Abstract
Ushbu maqolada raqamli tasvirlarni shifrlashda qo’llaniladigan kriptografik algoritmlar va ularning xavfsizlik jihatidan baholash mezonlari tadqiq etilgan. Asosiy e’tibor simmetrik (AES-256, DES) va asimmetrik (RSA-2048, ECC) shifrlash usullarining tasvirlarni muhofaza qilishdagi samaradorligiga qaratilgan. Baholash mezonlari sifatida entropiya tahlili, piksellar korrelyatsiyasi, NPCR/UACI ko’rsatkichlari, gistogramma tekisligi, kalit sezgirligi hamda statistik hujumlarga chidamlilik ko’rib chiqilgan. Tadqiqot natijalari ushbu mezonlar asosida algoritmlarni qiyosiy tahlil qilish metodologiyasini shakllantiradi.
This article investigates cryptographic algorithms used in digital image encryption and their security evaluation criteria. The study focuses on the effectiveness of symmetric (AES-256, DES) and asymmetric (RSA-2048, ECC) encryption methods in protecting digital images. Evaluation criteria such as entropy analysis, pixel correlation, NPCR/UACI indicators, histogram uniformity, key sensitivity, and resistance to statistical attacks are examined. The research results form a comparative analysis methodology for assessing algorithms based on these criteria.
