Sekaictf Rev Guardians of the Kernel Kernel can be a scary word. That’s alright though because we have an SMT solver on our team.
Sekaictf Algo Gluttonous Sheep This sheep needs to chill out with the apples, I’m sure there’s plenty to go around.
Sekaictf Misc Sus Someone sent this file to me, claiming he got it from a SEKAI where the palette is not colorful but purple. I had no idea what he was talking about – I only
Sekaictf Web Bottle Poem For this web challenge, we had to utilize two different exploits to get the flag – and one of them wasn’t a web exploit!
Sekaictf Web Issues: Another JWT Challenge Oh, JWTs. A well-intentioned standard, for sure – but my god, the number of implementation mistakes you can make.
Sekaictf Crypto Secure Image Encryption! One of the more solvable challenges… completed in the silliest way possible.
Sekaictf Misc Vocaloid Heardle Well, it’s just too usual to hide a flag in stegano, database, cipher, or server. What if we decide to sing it out instead?
Sekaictf Misc Matryoshka ANSI escape codes. Race conditions in PNG parsing. Digital COVID-19 vaccination records. De-noising audio files and the NATO phonetic alphabet. The only thing linking all of them? A race to solve a CTF
