Apparatus and method for identifying application using packet in communication system

An electronic device configured to identify an application to which a packet flow belongs, the device comprising:

• a storage device configured to store characteristic information corresponding to at least one application;
• and
• a controller configured to select characteristic information of a first application, examine bit lines of a position designated by a mask included in the characteristic information from packets transferred via the packet flow, calculate a ratio of a number of examination results of coincidence to a number of all input packets, and when the ratio exceeds a first threshold included in the characteristic information, determine that the packet flow belongs to the first application.