devoalda.gitlab.io/content/en/posts/picoctf/2022-10-12-picoctf-mod-26.md

layout	title	date	categories	tags	math	libraries	math	math
post	PicoCTF - MOD 26	2022-10-12 10:29:32 +0800	CTF PicoCTF	ctf picoctf	true	mathjax	true	true

Description

Cryptography can be easy, do you know what ROT13 is?

The flag given: cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_uJdSftmh}

Process

Using an online tool for ROT13, we can decode the message to get the flag.

Doing a ROT13 Decryption of cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_uJdSftmh}, I get the flag: picoctf{next_time_i'll_try_2_rounds_of_rot13_hwqfsgzu}

Flag

picoctf{next_time_i'll_try_2_rounds_of_rot13_hwqfsgzu}

{: file="flag.txt" }