Writeup: LH | RH- upCTF (Crypto) Paid Members Public
Challenge Description We are given an RSA setup where the primes have a special structure. From the provided Python code: CR7 = 143 PnQ_Size = CR7 * 2 p = getPrime(...) q = int(str(p)[CR7:] + str(p)[:CR7]) The challenge also provides: * n * e * c The key observation is that q is
Writeup: Árvore Genealógica- upCTF (Crypto) Paid Members Public
Challenge: Árvore (Family Matters CTF) Category: Crypto Description: Só primos atrás de primos atrás da fortuna do papi cris. Flag: upCTF{0_m33s1_é_p3qu3n1n0-zJ3KApbvffbddffc} Reconnaissance The challenge presents a family tree themed around "Papi Cris" (Cristiano Ronaldo). The main page contains a genealogy tree with family members,
Writeup: The Riddler’s Cipher Delight - ApoorvCTF (Crypto) Paid Members Public
Challenge Description "The Riddler never settles for a single puzzle... why should you? Layers of encryption guard the flag, each hiding some secret. Break through them one by one and prove that even the Riddler's cleverest traps can be unraveled." We are given a Python script
Writeup: deaDr3con'in - ApoorvCTF (Hardware) Paid Members Public
Challenge Description A damaged embedded CNC controller was discovered from an abandoned research facility. The machine was mid-job when the power got cut. The engineers said the machine was engraving something important before it died. We're given controller_fw.bin — the last binary loaded onto the embedded controller
Writeup: The Flag Is A Lie - CyberEdu CTF (Reverse) Paid Members Public
Overview A Unity IL2CPP Linux game (built with Unity 6000.3.8f1) presents a Portal-inspired testing facility where the player solves puzzles involving crate pushing. The readme warns: "You wake up in a suspicious testing facility. In exchange for solving a few puzzles, you'll be rewarded with
Writeup: Toxic Waste - CyberEdu CTF (Crypto) Paid Members Public
Overview This challenge implements a KZG Polynomial Commitment scheme on a supersingular elliptic curve, but with a shuffled setup. We must prove polynomial evaluations at 100 random points such that the Lagrange interpolation of the (z, y) pairs yields a polynomial of degree > 40. In other words, we need
Mengapa Menulis Membuat Saya Lebih Paham Diri Sendiri Paid Members Public
Dari semua kebiasaan yang pernah saya coba—membaca buku, ikut kursus, riset teknologi baru—ada satu kebiasaan yang diam-diam paling banyak mengubah saya: menulis. Bukan menulis laporan. Bukan juga menulis caption Instagram. Tapi menulis yang jujur. Menulis yang muncul dari kepala, melewati hati, lalu mampir ke jari. Dan setiap kali
Apa yang Sebenarnya Dibutuhkan Dunia dari Seorang Profesional Hari Ini? Paid Members Public
Dulu, jadi profesional itu soal gelar, jas, dan jargon. Kita diajarkan bahwa dunia menghargai mereka yang punya CV tebal, sertifikat segunung, dan jam kerja panjang. Tapi sekarang, saya nggak yakin itu cukup. Karena dunia hari ini nggak cuma berubah cepat—tapi juga berubah bentuk. Teknologi berkembang jauh melampaui kurikulum kampus.
