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Register a new userIncreasing the immunity of AES against the algebraic attacks by using the dynamic key dependent S-Boxes and studying its effect on AES immunity against the classic attacks
رفع مناعة AES ضد الهجمات الجبرية باستخدام جداول التبديل المعتمدة على المفتاح و دراسة تأثير هذه الجداول في مناعة AES ضد الهجمات التقليدية
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Added by
Damascus University ورقة بحثية
Publication date
2007
fields
Mathematics
and research's language is
العربية
Created by
Shamra Editor
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بنيت خوارزميات التعمية الحديثة بالاعتماد على الفرضية الآتية: «تعتمد الطرائق التقليدية في تحليـل المعميات (التحليل الخطي، التحليل التفاضلي،.....) على خصائص احتمالية تجعل أمـن المعمـي يـزداد بشكل أسي مع عدد دورات المعمي». لذلك فهذه المعميات ليس لها المناعة المطلوبـة ضـد الهجمـات الجيرية التي أصبحت أقوى بعد تطوير خوارزمية XSL .في هذا البحث سوف نقدم بعض الطرائق لرفع مناعة المعمي AES ضد الهجمات الجبرية ثم سندرس تأثير هذا التعديل في مناعة المعمي.
The security of several recently proposed ciphers relies on the fact:" that the classical methods of cryptanalysis (e.g. linear or differential attacks) are based on probabilistic characteristics, which makes their security grow exponentially with the number of rounds". So they haven’t the suitable immunity against the algebraic attacks which becomes more powerful after XSL algorithm. in this research we will try some method to increase the immunity of AES algorithm against the algebraic attacks then we will study the effect of this adjustment.
Artificial intelligence review:
Research summary
تستعرض هذه الورقة البحثية كيفية تعزيز مناعة خوارزمية التشفير AES ضد الهجمات الجبرية باستخدام جداول تبديل ديناميكية تعتمد على المفتاح. تعتمد خوارزمية AES على جداول تبديل ثابتة، مما يجعلها عرضة للهجمات الجبرية بعد تطوير خوارزمية XSL. تقدم الورقة طريقة لتعديل جداول التبديل في AES لتصبح ديناميكية، مما يزيد من تعقيد الهجمات الجبرية. كما تدرس تأثير هذا التعديل على مناعة AES ضد الهجمات التقليدية مثل التحليل الخطي والتحليل التفاضلي. تم إجراء اختبارات إحصائية لتقييم فعالية التعديل المقترح، وأظهرت النتائج أن التعديل يزيد من مناعة AES ضد الهجمات الجبرية دون التأثير سلبًا على مناعتها ضد الهجمات التقليدية.
Critical review
دراسة نقدية: تقدم هذه الورقة البحثية مساهمة قيمة في مجال تعزيز أمان خوارزمية AES ضد الهجمات الجبرية. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، لم يتم تقديم تحليل شامل لتأثير التعديل على الأداء العملي للخوارزمية من حيث السرعة والكفاءة. ثانيًا، لم يتم تقديم مقارنة واضحة بين جداول التبديل الديناميكية والعشوائية من حيث الفعالية والأمان. أخيرًا، يمكن تعزيز الورقة بإضافة دراسات حالة عملية لتوضيح كيفية تطبيق التعديلات المقترحة في بيئات حقيقية.
Questions related to the research
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ما هو الهدف الرئيسي من البحث؟
الهدف الرئيسي من البحث هو تعزيز مناعة خوارزمية AES ضد الهجمات الجبرية باستخدام جداول تبديل ديناميكية تعتمد على المفتاح ودراسة تأثير هذا التعديل على مناعة AES ضد الهجمات التقليدية.
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ما هي الهجمات الجبرية وكيف تؤثر على AES؟
الهجمات الجبرية هي نوع من الهجمات التي تعتمد على حل جملة المعادلات التي تصف نظام التشفير في حقل منته. تؤثر هذه الهجمات على AES بجعلها عرضة للكسر بعد تطوير خوارزمية XSL التي تمكنت من حل جملة المعادلات الجبرية الخاصة بـ AES.
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ما هي الاختبارات الإحصائية التي تم استخدامها لتقييم فعالية التعديل المقترح؟
تم استخدام مجموعة من الاختبارات الإحصائية التي اقترحها المعهد الوطني للمعايير والتقنية NIST لتقييم مدى عشوائية مخرجات الخوارزمية بعد التعديل، مثل اختبار Frequency (Monobit)، واختبار Runs، واختبار Binary Matrix Rank، وغيرها.
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ما هي النتائج الرئيسية التي توصل إليها البحث؟
النتائج الرئيسية التي توصل إليها البحث هي أن التعديل المقترح باستخدام جداول التبديل الديناميكية يزيد من مناعة AES ضد الهجمات الجبرية دون التأثير سلبًا على مناعتها ضد الهجمات التقليدية.
References used
Daemen, J., and Rijmen, V. (2001). "The Design of rijndael AES – The advanced encryption standard", Springer
"Announcing the advanced encryption standard (AES)",Federal Information Processing Standards Publication 197, 2001 URL:http://www.csrc.nist.gov/publications/fips/fips197/fips-197.pdf
Rukhin, A., Soto, J., Nechvatal, J., Smid, M., Barker, E., Leigh, S., Levenson, M., Vangel, M., Banks, D., Heckert, A., and Dray, J. (2001)."A statiistiical test suiite for random and pseudorandom number generators for cryptographiic appliicatiions", URL:http://www.csrc.nist.gov/publications/nistpubs/800-22/sp-800-22-051501.pdf
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