Secure Message
What is a "Secure Message"?
A secure message is a text message that can be sent and received by using PrivateGSM. Secure Message uses the same communication infrastructure of the Secure Voice communication to exchange data:
- Server Authentication by SSL certificate
- HTTPS and SIP over TLS protocols to exchange data
It's possible to send just text messages, but as PrivateGSM supports UNICODE and emoji character set, you can add emoticon icons as well.
BlackBerry platform does not support Emoji and thus cannot use them both for writing or reading. This is an operating system limitation and it's not recoverable.
How does a Secure Message work?
When a customer chooses to send a Secure Message, it triggers an HTTP POST request in his client towards PrivateServer which plays a "store-and-forward" role. As soon as the receiver pops up online, PrivateServer delivers the Secure Message.
At current state of development, message encryption is granted on the server for the storing period by an internal key. Future development will implement asymmetric key encryption side-to-side (PGP like, actually).
Delivery is performed by SIP over TLS protocol, so as you can see the whole end-to-end path is encrypted and as the message is stored after a local encryption on the server, then there's (almost) no way of deciphering it.
Features and limits (no chat group, no chat rooms, sì a emoji->indica come attivarlo su iphone e android, status della consegna del messaggio)
sdfds
To use Emoji set it's mandatory to enable it on your device. This is an Operating System option thus please refer to your device manual.
You can also communicate by text messages using the Private Message System (henceforth PMS). PMS provides Private Text Message (henceforth PTM) which does relay on the very same security infrastructure the voice calls do.