2013from the authors’ own sites
Hackyou ctf
1 challenge with 1 published solution between them. The writeups for this event were found on the authors’ own sites.
Where these writeups liveSteganography1
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
100, 200, 300
1 official solutionAlso written up in: writeup-ctf.blogspot.com