Tools

RsaCTFTool

#If sagemath error try
sudo apt-get install sagemath

#If wolframe error try
pip3 install wolframalpha

#(1)
python3 RsaCtfTool.py --publickey PublicKey.pem --private --uncipher ciphertext

#(2)
python3 RsaCtfTool.py -n 712312... -e 65537 --uncipher 125123...

#(3)
python3 RsaCtfTool.py --publickey public.pem --private > private.key

GPG/PGP

# First
gpg --import key.asc
gpg --decrypt backup.pgp

Openssl

openssl rsautl -decrypt -inkey private.key -in note2_encrypted.txt -out note2.txt

PadBuster

perl ./padBuster.pl http://10.10.10.10/index.php "GVrfxWD0mmxRM0RPLht/oUpybgnBn/Oy" 8 -encoding 0 -cookies "hcon=GVrfxWD0mmxRM0RPLht/oUpybgnBn/Oy"

References

https://book.hacktricks.xyz/crypto/padding-oracle-privbook.hacktricks.xyz

padbuster | Kali Linux ToolsKali Linux

Jwt

GitHub - lmammino/jwt-cracker: Simple HS256 JWT token brute force crackerGitHub

npm install --global jwt-cracker

Online Tools

• https://gchq.github.io/CyberChef/

• https://scwf.dima.ninja/

• https://www.guballa.de/substitution-solver (substitution solver)