DocumentCode
653497
Title
Real-Time Covert VoIP Communications over Smart Grids by Using AES-Based Audio Steganography
Author
Yijing Jiang ; Liping Zhang ; Shanyu Tang ; Zhangbing Zhou
Author_Institution
Sch. of Comput. Sci., China Univ. of Geosci., Wuhan, China
fYear
2013
fDate
20-23 Aug. 2013
Firstpage
2102
Lastpage
2107
Abstract
Smart grid has been spread worldwide, but its data security and privacy have not got enough attention. In this paper, we propose a VoIP steganography method based on AES to achieve a real-time covert communication over smart grids. The covert communication system is implemented by embedding secret message encrypted with symmetric cryptography AES into an audio signal encoded by PCM codec. In order to meet the requirement of real-time, we encrypt the secret message and embed it with different algorithms into audio packets before sending them. So observers cannot detect it by using a simple statistical analysis. At the receiving end, we employ the corresponding method to retrieve the secret message, and then decrypt it to get the original message. For different embedding methods, each packet has a different capacity for embedding the secret message.
Keywords
Internet telephony; audio coding; codecs; cryptography; observers; security of data; smart power grids; statistical analysis; steganography; telecommunication security; AES-based audio steganography; PCM codec; VoIP steganography method; audio packets; audio signal; covert communication system; data privacy; data security; embedding methods; embedding secret message; observers; real-time covert VoIP communications; real-time covert communication; secret message; smart grids; statistical analysis; symmetric cryptography AES; Algorithm design and analysis; Communication systems; Encryption; Real-time systems; Smart grids; Speech; AES; Steganography; VoIP; smart grid;
fLanguage
English
Publisher
ieee
Conference_Titel
Green Computing and Communications (GreenCom), 2013 IEEE and Internet of Things (iThings/CPSCom), IEEE International Conference on and IEEE Cyber, Physical and Social Computing
Conference_Location
Beijing
Type
conf
DOI
10.1109/GreenCom-iThings-CPSCom.2013.395
Filename
6682405
Link To Document