Proceedings Article10.1109/MILCOM.2002.1180476
Data embedding for secure communications
Jerry D. Gibson,Mark G. Kokes +1 more
- 07 Oct 2002
- Vol. 1, pp 406-410
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TL;DR: The overall goal of this approach is to increase the data throughput of a given channel without increasing the transmitted data rate or changing the transmission codes, network protocols or source compression methods.
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Abstract: We expand on a new technique for embedding digital information into G.711 encoded speech signals for the purpose of secure data communication. Using the method of types as a tool to analyze the statistical nature of a digital speech signal, we demonstrate a scheme that is capable of embedding tip to 1.6 kbits/sec of additional information into a host signal at an average embedded error rate of 10/sup -4/. This additional bandwidth can be used for the purpose of secure communications and has some intrinsic properties that are very attractive for the proposed application. We suggest such a scheme as a possibility for use in existing telecommunications networks. The overall goal of this approach is to increase the data throughput of a given channel without increasing the transmitted data rate or changing the transmission codes, network protocols or source compression methods. In accomplishing this task, we offer the embedded data stream as a transport for an encrypted signal and argue that the resulting mechanism represents a quite natural multilevel approach to secure communication.
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Citations
G.711-Based adaptive speech information hiding approach
Zhijun Wu,Wei Yang +1 more
- 16 Aug 2006
TL;DR: An adaptive LSB algorithm to embed dynamic secret speech information data bits into public speech of G.711-PCM (Pulse Code Modulation) for the purpose of secure communication according to energy distribution, with high efficiency in steganography and good quality in output speech.
31
Patent
Types-based, lossy data embedding
Jerry D. Gibson,Mark G. Kokes,G.C. Orsak,Victor Stolpman +3 more
- 14 May 2002
TL;DR: In this paper, a new approach to data embedding within ITU G.722 and ITUG.711 based upon the method of types and universal classification is disclosed.
21
LPC parameters substitution for speech information hiding
Wu Zhijun,Wei Gao,Wei Yang +2 more
TL;DR: In this article, an information hiding algorithm based on the analysis-by-synthesis (ABS) speech coding scheme is presented for real-time speech secure communication, which substitutes secret speech data bits for linear predictive coefficients (LPCs) in linear predictive coding.
15
Approach to hide secret speech information in G.721 scheme
Lan Ma,Zhijun Wu,Wei Yang +2 more
- 21 Aug 2007
TL;DR: The experiments show that this approach meets the requirements of information hiding, satisfies the constraints of speech quality for secure communication, and achieves high hiding capacity of 1.6Kbps with an excellent speech quality and complicating speakers' recognition.
12
Security framework for integrated networks
Ammar Alkassar,Christian Stüble +1 more
- 13 Oct 2003
TL;DR: This paper discusses the limitation of current security mechanisms in heterogeneous networks and presents a general-purpose security framework for integrated networks which overcomes with the shortcomings of the present situation.
8
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