研究者情報 | 神奈川大学

チョウ　ゼンシュン Zhang Shanjun 張　善俊所属神奈川大学情報学部計算機科学科神奈川大学大学院理学研究科理学専攻（情報科学領域）職種教授
言語種別	英語
発行・発表の年月	2021/06
形態種別	学術雑誌
査読	査読あり
標題	Cryptanalysis of reversible data hiding in encrypted images by Block Permutation and Co-Modulation
執筆形態	共著
掲載誌名	IEEE Transactions on Multimedia
掲載区分	国外
出版社・発行元	IEEE
巻・号・頁	24,pp.2924-2937
著者・共著者	Q. Lingfeng, C. Fan, Z. Shanjun and H. He
概要	Reversible data hiding in encrypted images (RDH-EI) technology is commonly used in cloud storage images for privacy protection. Most existing RDH-EI techniques reported in the literature applied block permutation and co-modulation (BPCM) encryption to generate encrypted images. This work analyses the security of the RDH-EI algorithm based on BPCM encryption under known plaintext attack (KPA). Different from the existing KPAs, this paper considers that attackers can perform KPA based on marked encrypted images and shows that BPCM encryption has the risk of information leakage. Experimental results show that the correct rate of key estimation is positively correlated with the block size and the number of plain cyphertext pairs. The average correct rate of key estimation reaches 63% when the block size is greater than 33.
DOI	DOI: 10.1109/TMM.2021.3090588