Sdctf 2022
Vinegar
Solved by - Avantika(iamavu)
Vinegar
My friend gave me another encrypted flag...I think they hate me! I heard them yell something about “Vinegar”, but I still don’t know what they’re talking about!
Ciphertext
{wbeyrjgewcfroggpesremvxgvefyrcmnnymxhdacgnnrwprhxpuyyaupbmskjrxfopr}
Note
My friend also yelled something about “preventing plaintext attacks” and said once I’ve decrypted this, I’ll need to append sdctf to the front of it.
As the name implies it is Vigenere cipher, we just need to bruteforce it.|
I googled for Vigenere bruteforce and the first tool did the trick
don’t forget to append sdctf in the beginning
FLAG :
sdctf{couldntuseleetstringsinthisonesadlybutwemadeitextralongtocompensate}