摘要:Because of the features of pseudo randomness, noise-like behaviour, and the sensitivity of initial values and control parameters, chaotic mapping has widely been applied in the field of security telecommunication and video/image encryption. Additionally, in the past few decades the technology of chaotic mapping in security applications has made great progress, yet it has not become popular for securing digital transmissions. Learning from the concept of phase transition in signal modulation, this paper presents a novel TCP based and secure network transmission system: Chaotic Based Security Network Transmission System (CBSNTS). Our experiments and analysis prove the availability, practicality, security, chaotic characteristics and performance of CBSNTS.