Tags: misc web 

Rating: 5.0

# Transparency
### 50 points

> This one is simple! Just look where you might look at the cryptographic history of the sunshinectf.org domain! There's a Yeti in one and a Nimbus in another!

Here, we're asked to chech the cryptographic history of the challenge domain.
Since we're talking about a website, it can only mean to check the history of its security certificates!

We can see it by visiting [crt.sh](crt.sh). This is an OSINT Tool aimed to gather info on certificates emitted to the certificate transparency logs,

Searching for the [given domain](https://crt.sh/?q=sunshinectf.org) we can find the flag in the identifiers set for the certificate on the 18th of november:

![crt](https://i.imgur.com/0p0QNTF.png)

Original writeup (https://gist.github.com/SalScotto/d855c77d07907f9768656e64a27b6887).