OBSCURA
WHAT IS OBSCURA
Step into the Chamber of Codes. OBSCURA, a National Level CTF hosted by WiCyS Sathyabama, is a high-stakes, Harry Potter-inspired National Level CTF designed to test the limits of logic and creativity in a single-day sprint.
This flagship challenge at Sathyabama Institute of Science and Technology invites participants to bridge the gap between technical expertise and magical strategy. From solving ancient riddles in the script to mastering modern cybersecurity charms, OBSCURA is the ultimate quest for the next generation of tech-wizards.
THE ANCIENT PROPHECY
In the deep annals of the Forbidden Archive, there exists a cipher known only as OBSCURA — woven from shadow, starlight, and the darkest threads of arcane knowledge. For centuries, it has remained unbroken, its secrets guarded by enchantments that bend the very fabric of logic.
The Council of WiCyS has opened the vaults. The scrolls are unsealed. Brave apprentices of the digital arts are now summoned to prove their mastery over cryptographic enchantments, steganographic glyphs, web fortress vulnerabilities, and the mysteries of binary incantations.
"The cipher is not broken by strength, but by seeing what others dare not look at."
Treasures of the Victors
Prize Pool
The Sacred Codex
Event Overview
This is a Jeopardy style National Level CTF where teams compete to solve cybersecurity challenges and capture flags.
Each challenge contains a flag string that must be submitted to the scoreboard platform.
📅 Date: 10th April 2026
📍 Mode: Offline
⏰ Time: 9:00 AM – 6:00 PM
👥 Team Size: Max 3 members
💰 Registration Fee: ₹150 per person
🎓 Open to students and industry professionals
Team Formation Rules
Participants must compete in teams of 3 members only
Team members must be declared at the time of registration.
Team composition is final and cannot be changed after registration.
Replacement or addition of members is strictly not allowed.
If a registered team member does not attend, the remaining members must continue without replacement.
Cross-college teams allowed
Requirements
All participants must carry valid ID cards.
BYOD: Every participant must bring their own laptops
Bring your own extension box
Prohibited Actions
Attacking the CTF platform or scoreboard infrastructure
Denial-of-Service (DoS/DDoS) attacks
Attacking other teams’ machines or networks
Flag sharing between teams
Exploiting unintended vulnerabilities in the platform itself
Brute-forcing the flag submission endpoint
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