基于K-L差异的隐密术安全性理论研究

宋辉; 孔祥维; 尤新刚

doi:10.3724/SP.J.1146.2009.00142

基于K-L差异的隐密术安全性理论研究

doi: 10.3724/SP.J.1146.2009.00142

宋辉,
孔祥维^①,
尤新刚^①②

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出版历程
- 收稿日期: 2009-02-04
- 修回日期: 2009-07-21
- 刊出日期: 2010-02-19

The Study of Security in Steganography Based on K-L Divergence

摘要

摘要: 隐密术安全性理论研究一直是被广泛关注的研究重点和难点。该文通过对K-L差异的回顾及隐密术安全性的定性分析，指出Cachin给出的安全性定义缺乏一般性。同时注意到除概率分布的差异外，隐密信息的样本量和状态集合的势对隐密信息的安全性也有重要影响。结合对隐密信息安全性的定性分析，给出了一个基于K-L差异及假设检验的隐密术安全性定义，并推导出修改率对于隐密术安全性的影响。最后结合现有的隐密算法和隐密分析算法设计了一组对比试验，以验证该文理论分析的有效性。
- 隐密术; 安全性度量; K-L差异; 样本量
Abstract: This paper presents a universality method for measure of security in steganography. According to the definition of K-L divergence and the properties of security in steganography, some limitations in Cachins definition of security are shown in the beginning. Besides the divergence of probability distributions between stego and cover, the sample size and the cardinality of the state set of random variable have great effect on security in steganography. Based on K-L divergence and hypothesis testing, an amended measure of security and a useful illation are presented. The result of examination can prove that the new measure of security is reasonable.

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尤新刚, 周琳娜, 郭云彪. 信息隐藏学科的主要分支及术语[C]. CIHW2001, 西安, 2001: 43-50.[2]You Xin-gang.[J].Zhou Lin-na, and Guo Yun-biao. The main offshoots and terminology in information hiding [C]. CIHW2001, Xian.2001,:-[3]Simmons G J. The prisoners problem and the subliminal channel[C]. IEEE Workshop Communications Security CRYPTO, New York, 1983: 51-67.[4]Ettinger J M. Steganalysis and game equilibria[C][J].Information Hiding 1998, Oregon, USA, LNCS.1998, 1525:319-328[5]Mittelholzer T. An information-theoretic approach to steganography and watermarking[C]. Information Hiding, Dresden, Germany, LNCS, 1999, 1768: 1-16.[6]Moulin P and OSullivan J A. Information-theoretic analysis of information hiding [J].IEEE Transactions on Information Theory.2003, 49(3):563-593[7]Cachin C. An information-theoretic model for steganography[C][J].Information Hiding 1998, Oregon, USA, LNCS.1998, 1525:306-318[8]Chen B and Wornell G. Quantization index modulation: A class of provably good method watermarking and information embedding[J]. IEEE Transactions on Information Theory, 2001, 48(4): 1423-1443.[9]Kim Y, Duric Z, and Richards D. Modified matrix encoding technique for minimal distortion steganography[C]. Information Hiding 2006, VA, USA, LNCS, 2006, 4437: 314-327.[10]Fridrich J.[J].Pevny T, and Kodovsky K. Statistically undetectable JPEG steganography: Dead ends, challenges, and opportunities[C]. The 9th Workshop on Multimedia Security, Dallas, Texas, USA.2007,:-[11]Ker A. A capacity result for batch steganograph [J].IEEE Signal Processing Letters.2007, 14(8):525-528[12]Ker A.[J].Pevny T, and Kodovsky J, et al.. The square root law of steganographic capacity[C]. MMSec 08, Oxford, UK.2008,:-Pevny T and Fridrich J. Benchmarking for steganography[C]. Information Hiding 2008, Santa Barbara, CA, USA, 2008: 251-267.[13]Leibler K. On information and sufficiency[J].Annals of Mathematical Statistics.1951, 22(1):79-86[14]Pevny T and Fridrich J. Merging markov and DCT features for multi-class JPEG steganalysis[C]. Security, Steganography and Watermarking of Multimedia Contents IX, San Jose, CA, 2007: 6505.

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