Ask HN: What are some great projects to gain experience in InfoSec?

I am taking a course in security, privacy, and distributed systems, and am wondering in case y'all have any suggestions for a research or programing project.

Some options I am considering: * Exploring something with Project Atlas, * Developing with Solidity, * Working on something with the Go Crypto library, * Implementing the Double Ratching Protocol, or * Developing with Monero/Litecoin