2023from public repositories
Posterproposal 2023
4 challenges with 4 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveSteganography4
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
Solve it with:LSB steganography extractorPNG chunk analyzerAudio spectrogram and SSTV decoderZero-width character and text steganography decoderLearn: Steganography
PosterProposal README
1 official solutionAlso written up in: GreHack/CTF-challs
PosterProposalv2 README
1 official solutionAlso written up in: GreHack/CTF-challs
Posterv1
1 official solutionAlso written up in: GreHack/CTF-challs
Posterv2
1 official solutionAlso written up in: GreHack/CTF-challs