首页|JPEG Image Encryption With DC Rotation and Undivided RSV-Based AC Group Permutation

JPEG Image Encryption With DC Rotation and Undivided RSV-Based AC Group Permutation

扫码查看
原文链接
  • NETL
  • NSTL
  • IEEE
Existing JPEG encryption approaches pose a security risk due to the difficulty in changing all block-feature values while considering format compatibility and file size expansion. To address these concerns, this paper introduces a novel JPEG image encryption scheme. First, the security of sketch information against chosen-plaintext attacks is improved by increasing the change rate of block-feature values. Second, a classification global permutation approach is designed to encrypt the undivided run/size, value (RSV)-based AC groups to achieve larger changes in the block-feature values. Third, to reduce file size expansion while maintaining format compatibility, the DC coefficients are rotated based on the mapped DC differences in the same category, and the nonzero AC coefficients are mapped in the same category. Extensive experiments demonstrate that the proposed algorithm is superior to existing schemes in terms of security. Notably, the average change rate of block-feature values is increased by at least 20%. Furthermore, the proposed scheme reduces the file size by an average of 2.036% compared to existing JPEG image encryption methods.

EncryptionTransform codingCryptographyCodesImage codingStandardsTransforms

Yuan Yuan、Hongjie He、Yaolin Yang、Hadi Amirpour、Christian Timmerer、Fan Chen

展开 >

School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China

Christian Doppler Laboratory ATHENA, Institute of Information Technology (ITEC), University of Klagenfurt, Klagenfurt, Austria

School of Computing and Artificial Intelligence, Southwest Jiaotong University, Chengdu, China

2025

10.1109/TMM.2023.3336236

IEEE transactions on multimedia

IEEE transactions on multimedia

ISSN：
年,卷(期)：2025.27(1)
  • 40