PicoCTF Writeup – Lets Warm Up
# Information:
CTF Name: PicoCTF
CTF Challenge: Lets Warm Up
Challenge Category: General Skills
Challenge Points: 50
PicoCTF 2019.
# Challenge Description:
If I told you a word started with 0x70 in hexadecimal, what would it start with in ASCII?
# Writeup
To solve this challenge we have to convert 0x70 in hexadecimal to ASCII. To do so we can use an online tool, for example, this one.
To solve this challenge manually it is necessary to convert from hexadecimal to decimal and then go to the ASCII table and match the numbers with the associated values in ASCII.
By looking at an ASCII table available online we can see that the number 112 corresponds to the character p in ASCII.
It is important to mention that some ASCII tables include the hexadecimal value associated with the corresponding ASCII. However, this is not always the case.
The image source can be found here.
Thank you very much for reading!
Cheers,
MRegra
