Link to blog post
https://blog.dgraph.io/post/encryption-at-rest-dgraph-badger/
First paragraph of the blog post:
We built “Encryption at Rest” in Badger v2. Encryption is complex, but important. With this blog post, we not only want to introduce this feature to our users, but also dive into the details of how we implemented encryption in Badger, so the reader can gain enough understanding about introducing AES encryption in their own systems.
Full disclosure:
I'm a Developer Advocate for Dgraph Labs.