الحمدالله 🤍

انا و تيم MindCrafters مركز 28 في 0xL4ugh CTF v5 و من نجاح لي نجاح ان شاء الله




Alhamdulillah 🤍

Proud to share that my team MindCrafters achieved 28th place in 0xL4ugh CTF v5.

Grateful for the teamwork, late nights, and collective mindset that turned challenges into learning wins.
Onward to sharper skills, tougher battles, and higher ranks 🚀🔐

لاسبوع الجاي هنفتح بث نحل في ctfs من pico 🤍

تاريخ البث : يوم الجمعه الساعه 6 بتوقيت مصر

البث هيبداء الساعه 6 و عشر دقائق عبال ما ناس تصلي

طبعا هيكون الجمعه الساعه 6 بتوقيت مصر 🤍

Of course, it will be on Friday at 6 PM Egypt time 🤍

الحمدالله 🤍

سعيد جدا و فخور اني بشارك رايتب من اصعب رايتب الي موجودين علي منصه #flagyard الرايتب عباره عن تحدي كريبتو و حاليا مفيش غير 40 انسان حول العالم بس الي قدرو علي حل تحدي




I’m happy to share a new CTF write-up I’ve published on Medium :

“Reduced Collisions” 🧠🔐

In this challenge (Cryptography – FlagYard), I analyzed a custom hash function built on linear algebra and modular arithmetic, then exploited its structure to generate hash collisions.


🔍 What this write-up covers :


Reverse engineering the provided server-side cryptographic logic
Modeling the hash function as a linear system


Applying lattice reduction (LLL algorithm) to recover valid collision vectors

Crafting a working solution to obtain the flag

This challenge was a great exercise in combining theory (linear algebra & lattices) with practical exploitation, which is something I really enjoy about cryptography-focused CTFs.

📖 Full write-up :

https://spider1sec.medium.com/ctf-write-up-reduced-collisions-9373e48adc75

حد لاحظ اني نسيت اعمل بث ؟