Ok, the first thing in my mind is how to share passwords with your teammates.

Sending a password:

   echo 'hunter2' | openssl bf - | curl -X POST --data-binary @- https://patchbay.pub/mysecretpasswordhandle

Receiving a password:

    curl --silent https://patchbay.pub/mysecretpasswordhandle | openssl bf -d -

This uses end-to-end encryption (Blowfish cipher) that relies on a shared password.