摘要
The proposed secure communication approach adopts the proposed algorithm of Analysis-By- Synthesis （ABS） speech information hiding to establish a Secret Speech Subliminai 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.
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.
基金
Supported by the National High Technology Research and Development Program of China (863 Program) (No.2003AA142080, 2004AA775060)
the National Natural Sicence Foundation of China (No.60203004)
with additional support from the China Post-doctorial Research Foundation (2005-03)
the Foundation of Tianjin Key Lab for Advanced Signal Processing(2005).
