NDLI: Realizing fine-granular Read andWrite Rights on Tree Structured Documents

Content Provider	IEEE Xplore Digital Library
Author	Kollmann, F.
Copyright Year	2007
Description	Author affiliation: Syst. Security Group, Klagenfurt Univ. (Kollmann, F.)
Abstract	Partial encryption of contents in tree structured documents like XML allows to define a fine-granular local access control on nodes for different users: depending on the read permissions a user gets keys and can decrypt encrypted document parts. However, this approach leads to a management of countless keys. The main goal of the presented key management scheme is to reduce the effort for the key management in tree structured documents in order to achieve a simple key retrieval. In contrast to existing approaches, write permissions are introduced allowing only authorized users valid write operations in such documents. To reduce the key storage, a derivation of read permissions from write permissions is presented, while read permissions and write permissions are inherited from parent nodes. Among read and write permissions, rights for structural modifications are included to guarantee the authenticity of such documents. Additionally the problem of key transmission, the evaluation of data overhead for a realization of this scheme, and security aspects are discussed
Sponsorship	ENISA Vienna Univ. of Technol. Secure Business Austria Austrian Comput. Soc
Starting Page	517
Ending Page	523
File Size	185195
Page Count	7
File Format	PDF
ISBN	0769527752
DOI	10.1109/ARES.2007.121
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-10
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Access control Data security XML Permission Cryptography Resource management Logic Protection Digital audio broadcasting Secure storage
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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