I've wanted to make this for a long time, but accepted that I didn't (and don't) know enough about security to do it right. I hope this proves to be a secure im

I've wanted to make this for a long time, but accepted that I didn't (and don't) know enough about security to do it right. I hope this proves to be a secure implementation. Looking forward to a security review by someone who knows a lot more than I do.