System and method for determining a security encoding to be applied to outgoing messages

Message safety code system and method for determining is applied in such as mobile device equal calculating device for transmitting user. The generalized a surface; the method comprises the following steps: The identification flowing transmitting to at least receiving end; aThe calculating device of determining whether a arranged on service message coding configuration is a value; the value dimensions of the flowing to apply a policy machine in comprises a safety code of; messageThe general message coding configuration arranged on calculating device is for indicating flowing are apply a policy machine in a message the value of safety code, wherein a policy machine according inquired flowing applied in the safety code of message identifying, determined according flowing applied in the safety code of message identifying; The safety code according to determine applied in message is separately; And a wire with the safety code the information transmission device comprises at least receiving terminal. In one embodiment, a policy machine is a universal PGP server.