Tags: certificates ssl 

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<span>Trivia 30 - CA

<span>Description
</span>
What is the CA that issued Alexctf https certificate (flag is lowercase with no spaces)
<span>
Solution
</span>
Viewing the certificate issued by ctf.oddcoder.com, we see its CA is "Let's Encrypt"
<span>
Flag: </span>letsencrypt</span>