Warren [crypto]

Warren

A true cipher buffet lies ahead.

nc chal.tuctf.com 30101

Recon

Connecting to the challenge gives us a menu of basic ciphers which needs to be solved.

$ nc chal.tuctf.com 30101

Welcome to the Warren Buffet!

You must solve all of the ciphers
to receive the flag.

I'd recommend filling your plate
and solving all at once.
(The timeout is 90 seconds)


MENU:
1) Affine
2) Baconian
3) Caesar
4) Atbash
5) Vigenere
5

This is a tough one!
Here's your cipher:

OCIXSXLG BX T BCKI VCRAJK

Give the plaintext: VIGENERE IS A HARD CIPHER
Correct!


MENU:
1) Affine
2) Baconian
3) Caesar
4) Atbash
5) Vigenere [solved]
4

This is a fun one that's less common!
Here's your cipher:

ZGYZHS RH Z UFM XRKSVI

Give the plaintext: atbash is a fun cipher
Correct!


MENU:
1) Affine
2) Baconian
3) Caesar
4) Atbash [solved]
5) Vigenere [solved]
3

Ready for a classic?
Here's your cipher:

WUYMUL CM UH YUMS WCJBYL

Give the plaintext: caesar is an easy cipher
Correct!


MENU:
1) Affine
2) Baconian
3) Caesar [solved]
4) Atbash [solved]
5) Vigenere [solved]
2

Have some bacon!
Here's your cipher:

aaaabaaaaaaaabaabbababbaaabaaaaaaaaabbaa abaaabaaab aabaaabbaaabaaaabbabbabbaaaaaaaaaabababaaabaa

Give the plaintext: baconian is enjoyable
Correct!


MENU:
1) Affine
2) Baconian [solved]
3) Caesar [solved]
4) Atbash [solved]
5) Vigenere [solved]
1

Have you heard of this one? Because I just read about it.
Here's your cipher:

UBBAHK AO U LUT CAPJKX

Give the plaintext: affine is a bad cipher
Correct!


Thanks for dining at the Warren buffet!

Here's your flag:


TUCTF{th4nks_f0r_d1n1ng_4641n_4t_th3_W4rr3n_buff3t}

Flag

TUCTF{th4nks_f0r_d1n1ng_4641n_4t_th3_W4rr3n_buff3t}