Get localized encryption working

[wildwilliam2]

David, I need you to write a function to encrypt and decrypt a string. Use whatever library is necessary. I had tremendous trouble getting this to work, and think you would be better suited.

async function encrypt (string content, string key) { }

async function decrypt(string content, string key) { }

[wildwilliam2]

Included with ff99e2d3eb47b1c07d187bca7a942e6d51759f95