チョウ ゼンシュン   Zhang Shanjun
  張 善俊
   所属   神奈川大学  理学部 情報科学科
   職種   教授
言語種別 日本語
発行・発表の年月 2009/07
形態種別 学術雑誌
査読 査読あり
標題 Variable Dimension Space Audio Scrambling Algorithm Against MP3 Compression
執筆形態 共著
掲載誌名 Springer Berlin / Heidelberg
巻・号・頁 Lecture Notes in Computer Science Algorithms and Architectures for Parallel Processing, pp.866-876,,866-876頁
著者・共著者 Huan Li,, Zheng Qin, Liping Shao, Shanjun Zhang, and Bin Wang
概要 A novel Variable Dimension Space Audio Scrambling Algorithm Against MP3 Compression is proposed. The algorithm is implemented in audio position space, which changes the dimension of coordinates and uses arbitrary matrices to scramble audio. The scrambled audio was segmented and a sequence number is embedded in the front of each segment to discriminate different segments. The proposed method can increase the combination of encrypting parameters, which increases the difficulty being attacked; random generated high dimensional transform matrix has no fixed period and has no special restriction on the audio length; a sequence number can be used to determine the each segment audio positions, so the scrambled audio compressed by MP3 can be recovered. Experiments show the proposed algorithm is validity in audio scrambling, low cost in recovering the scrambled audio and still has a wonderful one time scrambling performance. The proposed algorithm is robust in enduring MP3 attacks.