RSA Factorisation

RootMe Challenge: Decrypt the password : The validation password was encrypted using this public key.

ciphertext :

e8oQDihsmkvjT3sZe+EE8lwNvBEsFegYF6+OOFOiR6gMtMZxxba/bIgLUD8pV3yEf0gOOfHuB5bC3vQmo7bE4PcIKfpFGZBA

  1. Decode the base64 ciphertext

  2. Use RsaCtfTool

  3. Decrypt message with openssl

Resources

Last update: 2025-05-12 14:16