Packet security method and apparatus thereof

Packet are provided a security method and apparatus. Packet security process according to the invention is implemented by generating a secure packet in accordance with the step of determining a security level of the packet, and the determined security level according to the phase, the detection characteristics for detecting the characteristics of the transmission target packet . The characteristics of the packet could be at least one of the destination address of the packet, the device sending the packet, the transport protocol, the packet size of the packet, the application, and specify the security level of the packet of the packet. According to the invention, to give flexibility to the security features applied by applying adaptively according to the characteristics of the packet transmitted security features that are implied by the prior device unit which has the advantage that enables an efficient use of resources and thereby . Network security method, the packet characteristics, the level of security, packet security, and packet transmission