• https://www.maketecheasier.com/hide-confidential-data-inside-images-in-linux/
• http://linuxpoison.blogspot.fr/2011/01/text-watermarking-and-watermark.html
• https://doc.lagout.org/Others/Steganographie%20%20techniques.pdf
• https://trailofbits.github.io/ctf/forensics/
• https://k-lfa.info/quelques-tools-forensics/

FS

• https://zachary-parish.medium.com/hiding-data-in-file-slack-space-using-python-linux-c773a8315
• StegFS

# apt-cache search watermarking
mat - Metadata anonymisation toolkit
snowdrop - plain text watermarking and watermark recovery

Voir :: sleuthkit / mmls / img_stat