Using Message
Digital Encryption
In order to use the
Message Digital Encryption feature you
will first need to obtain your
recipient's Public Key.
Without going into great
detail hare (I will later, on a
different article), the Public Key part
of a pair of mathematical keys (Public
and Private keys) which are used for
message encryption and authentication.
The Public Key is basically a long
string that can be used to encrypt a
message, while only the person holding
the Private Key will be able to decrypt
the message.
In order to encrypt a
message that is intended to be read only
by David, I will need to ask David for
his Public Key, so I will be able to use
it to encrypt the message, knowing that
there is only one person that holds the
key's pair - the Private Key - and that
person is David.
So in order to be able to
exchange encrypted messages between
myself and David, I will need to first
send a Digitally Signed message (see
procedure above) to David, thus sending
him my Public Key. Next, David will have
to reply to my message by sending his
Public Key. The moment we both have each
other's Public Keys we will be able to
begin sending encrypted messages to one
another.
Just type your message as
you would in any regular message, press
the "Encrypt message content and
attachment" icon, then press the Send
button.
When the recipient opens
the received message he or she will see
that the message was in fact encrypted,
and can also check the certificate and
encryption details.
If by mistake you still
don't have the recipient's Public Key
you will get a warning message telling
you that the message cannot be
encrypted: |
