Title:
PHYSICAL LAYER STEGANOGRAPHY METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/161616
Kind Code:
A1
Abstract:
Disclosed are a physical layer steganography method and system, applied to the technical field of communications. In the method of the present embodiment, after a signal sending end performs channel coding on a carrier signal, an embedding method for a hidden signal in the coded carrier signal is determined according to a steganography security level and a pre-set strategy; moreover, a random sequence is generated for same to indicate an embedding position of the hidden signal in the coded carrier signal; and finally, the hidden signal is embedded into the coded carrier signal according to the embedding method and the random sequence so as to obtain a steganography signal, and the steganography signal is modulated and sent out. Thus, during transmission of the hidden signal, in view of a channel coding process, the hidden signal is embedded into the coded carrier signal for transmission, and the sending end determines a relatively secure embedding method for the hidden signal, so that the steganography signal cannot be easily suspected by an adverse monitoring end, and the security of hidden signal transmission is improved.
Inventors:
XIE NING (CN)
WANG HUI (CN)
ZHANG LI (CN)
HUANG JIWU (CN)
WANG HUI (CN)
WANG HUI (CN)
ZHANG LI (CN)
HUANG JIWU (CN)
WANG HUI (CN)
Application Number:
PCT/CN2016/079801
Publication Date:
September 28, 2017
Filing Date:
April 20, 2016
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
XIE NING (CN)
WANG HUI (CN)
ZHANG LI (CN)
HUANG JIWU (CN)
WANG HUI (CN)
XIE NING (CN)
WANG HUI (CN)
ZHANG LI (CN)
HUANG JIWU (CN)
WANG HUI (CN)
International Classes:
H04L9/06; H04L9/08; H04L29/06
Foreign References:
| CN103139191A | 2013-06-05 | |||
| CN101080013A | 2007-11-28 | |||
| US20140052989A1 | 2014-02-20 |
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