DES-Key-Quest

Crypto - Easy

Description: Welcome to the world of block ciphers! Your mission is to uncover the secret key used in this challenge.

A text file given:

DES-ECB:e1d5e1fcaae4aba0b735c8fb2ae8797728b073a34b14c57be236c819e6d5f4bbd94f5748ff9d1e008fcad8d403e23d02845a51513bb1e65027ed1bebdcb70973d411a0503cf06c261cb04e1ce1c12925

We only have the ciphertext and the encryption method; description asks to "uncover the secret key"; this hints towards a weak-key DES problem

The key 0xFFFFFFFFFFFFFFFF worked!

Hey you guessed the key right!! Heres the flag: flag{Y3MnH9qgcsTWY3MnH9qgcsTWw}