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#signal (1)

CTF challenge writeup of "Night Owl" from DEFCON CTF Qual.

reversingrfsignalcrypto

// About

SunHyuk Hwang

Satellite RF security researcher.

M.S. @ Kyung Hee University · PWNLAB

Hacking · Space · RF

// Recent News

Jul 2, 26 Heading to DEF CON 2026 Aerospace Village — Aug 6–9, Las Vegas Convention Center (West Hall). I helped build 4 hands-on satellite-hacking scenarios on OpenVSA (my open-source satellite ground station), and as its author I'll be there to help anyone who wants to try them.
Apr 22, 26 Presented at CISC-S'26 in Busan on May 8 — VSA (Virtual Satellite Antenna) and mrradio.kr.

// Recent Posts

Night Owl Jun 19, 26
World's first virtual RF hacking wargame 'mrradio.kr' Mar 13, 26
Easy Unpack Feb 20, 26

// Connect

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// Scan

sunhyuk.dev

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