CRYPTOGRAPHY
https://c4pr1c3.github.io/awesome-ctf/#crypto
https://www.dcode.fr/rsa-cipher
https://github.com/hamedA2/Zydra
https://pentaroot.com/cracking-encrypted-zip-fcrackzip/
https://www.dcode.fr/caesar-cipher
https://ctftime.org/writeup/23784
https://inventwithpython.com/hackingciphers.pdf
FORENSICS
https://ctfs.github.io/resources/topics/steganography/invisible-text/README.html
https://aperisolve.fr/
https://github.com/TwistAtom/ZWSP-Tool
https://www.geeksforgeeks.org/fcrackzip-tool-crack-a-zip-file-password-in-kali-linux/
https://subscription.packtpub.com/book/networking_and_servers/9781784390303/6/06lvl1sec72/cracking-zip-file-passwords
https://www.opensecuritytraining.info/LifeOfBinaries.html
https://stylesuxx.github.io/steganography/
OTHER LINKS
http://ctfs.github.io/resources/
https://gr4n173.github.io/2020/05/01/hackpack-ctf-pwn.html
https://fareedfauzi.gitbook.io/practice-ctf-list/
https://medium.com/@Asm0d3us/ritsec-ctf-web-challenges-writeup-e46e4965495f
https://www.yeahhub.com/top-10-essential-ctf-tools-solving-reversing-challenges/
https://www.hackingarticles.in/ssh-penetration-testing-port-22/