Secrets are encrypted using the passphrase you provide. Passphrases are hashed. The secret and passphrase in the database look like random text we can't read and can't decrypt without the passphrase.
All of the code for this project is open source and available to read. Installation instructions [are being added soon] if you'd prefer to run this project on your own infrastructure.
My name is Blaine Motsinger. Feel free to email me if you'd like to chat.
Pasteburn is built in Perl using the Dancer2 framework.