A novel approach of secure communication based on the technique of speech information hiding

Abstract

The proposed secure communication approach adopts the proposed algorithm of Analysis-By-Synthesis (ABS) speech information hiding to establish a Secret Speech Subliminal Channel (SSSC) for speech secure communication over PSTN (Public Switched Telephone Network), and employs the algorithm of ABS speech information extracting to recovery the secret information. This approach is more reliable, covert and securable than traditional and chaotic secure communication.