Yup, I've got an implementation of http over packet radio I've been working through and came to the same conclusion. Header contains the signature, base64 the m

Yup, I've got an implementation of http over packet radio I've been working through and came to the same conclusion. Header contains the signature, base64 the message for verification. Even though it's super low bitrate(1200bps/9600bps) since you have a binary foundation w/ base64 you can send raw binary to get low over-head but then easily verify+decode since base64 is well supported across a wide range of languages.