Multi-level access control scheme of image ROI based on Hash chains

doi:10.3778/j.issn.1002-8331.2011.04.022

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (4): 81-83.DOI: 10.3778/j.issn.1002-8331.2011.04.022

• 网络、通信、安全 • Previous Articles Next Articles

Multi-level access control scheme of image ROI based on Hash chains

WANG Chuancai¹，PAN Feng^1，2，SHEN Junwei¹

1.Key Laboratory of Network and Information Security under the Chinese Armed Police Force，Electronic Department，Engineering College of the Armed Police Force，Xi’an 710086，China
2.Key Laboratory of Network & Information Security of the Ministry of Education，Xidian University，Xi’an 710071，China

Received:2009-10-19 Revised:2009-12-29 Online:2011-02-01 Published:2011-02-01
Contact: WANG Chuancai

基于哈希链的图像ROI多级访问控制方案

王传才¹，潘峰^1，2，申军伟¹

1.武警工程学院电子技术系网络与信息安全武警部队重点实验室，西安 710086
2.西安电子科技大学网络信息安全教育部重点实验室，西安 710071

通讯作者: 王传才

Abstract

Abstract: In order to meet the multi-level security needs of information，a hierarchical encryption scheme based on one-way function is proposed.And a multi-level access control scheme of image ROI based on Hash chains which combined with DWT of images is accomplished.When users access the images，they can obtain different sensitive information according to their different privileges.The results of the experiment show that the key management of this scheme is simple and the encrypted quantity is relatively low.Only one single copy of the encrypted image is stored in the database，the storage space is greatly reduced.

Key words: one-way function, hierarchical encryption, Hash chains, wavelet transform, access control

摘要： 为了满足信息多级安全性要求，提出了一种基于单向函数的等级加密方案，并结合小波变换，实现了一种基于哈希链的图像ROI多级访问控制方案。用户根据权限不同，在访问时得到不同敏感度的明文信息。经实验分析，该方案密钥管理简单，加密数据量少，在数据库中只需存放一份含密图像，有效减少了存储所需空间。

关键词: 单向函数, 等级加密, 哈希链, 小波变换, 访问控制

CLC Number:

TP309

WANG Chuancai¹，PAN Feng^1，2，SHEN Junwei¹. Multi-level access control scheme of image ROI based on Hash chains[J]. Computer Engineering and Applications, 2011, 47(4): 81-83.

王传才¹，潘峰^1，2，申军伟¹. 基于哈希链的图像ROI多级访问控制方案[J]. 计算机工程与应用, 2011, 47(4): 81-83.

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Multi-level access control scheme of image ROI based on Hash chains

基于哈希链的图像ROI多级访问控制方案

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