RingZero CTF - Forensics - Who am I part 2

RingZero CTF - Forensics -  Who am I part 2

Objective:

I'm the proud owner of this website. Can you verify that?

Solution:


Well it took me a bit to figure this one out.

I tried looking at the whois records for ringzer0ctf.com

I tired looking at the DNS records for the site.

I even looked in the Certificate for the site.

Then I thought a little be more about the question. It's not asking how I can verify who own the site.
It wants me to verify the owner themselves.

Luckily at the bottom the page we see who is listed as on the twittter feeds

@ringzer0CTF and @ MrUnik0d3r

lets check if we can find the PGP for MrUniK0d3r online.

I googled PGP and MrUn1k0d3r


The very first result is his PGP  keybase.txt with his PGP

at the bottom of the file is the flag

FLAG-7A7i0V2438xL95z2X2Z321p30D8T433Z