An XML Access Control Model Considering Update Operations

نویسندگان

  • Meghdad Mirabi
  • Hamidah Ibrahim
  • Leila Fathi
  • Nur Izura Udzir
  • Ali Mamat
چکیده

Several researches have been proposed over the past years to specify a selective access control for XML document. However, most of the previous researches only consider read privilege while specifying XML access control when access control policies support update rights is untouched. Therefore, a challenging issue is how to define an XML access control model to handle update operations that include insertion, deletion, and modification. In this study, we propose an XML access control model to support update privileges. Moreover, we formalize update operations supported by our proposed XML access control model based on the different default and conflict resolution policies which are applied to them.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Rewrite-Based Verification of XML Updates

We propose a model for XML update primitives of the W3C XQuery Update Facility as parameterized rewriting rules of the form: ”insert an unranked tree from a regular tree language L as the first child of a node labeled by a”. For these rules, we give type inference algorithms, considering types defined by several classes of unranked tree automata. These type inference algorithms are directly app...

متن کامل

A practical mandatory access control model for XML databases

A practical mandatory access control (MAC) model for XML databases is presented in this paper. The label type and label access policy can be defined according to the requirements of different applications. In order to preserve the integrity of data in XML databases, a constraint between a read-access rule and a write-access rule in label access policy is introduced. Rules for label assignment a...

متن کامل

CAMAC: a context-aware mandatory access control model

Mandatory access control models have traditionally been employed as a robust security mechanism in multilevel security environments such as military domains. In traditional mandatory models, the security classes associated with entities are context-insensitive. However, context-sensitivity of security classes and flexibility of access control mechanisms may be required especially in pervasive c...

متن کامل

A General Approach for Securely Updating XML Data

Over the past years several works have proposed access control models for XML data where only read-access rights over non-recursive DTDs are considered. A small number of works have studied the access rights for updates. In this paper, we present a general model for specifying access control on XML data in the presence of the update operations of W3C XQuery Update Facility. Our approach for enf...

متن کامل

A New Optimistic Concurrency Control in Valid XML

When numerous users and applications work concurrently on Extensible Markup Language (XML) documents, the transaction management of these XML documents becomes an important issue. The detection of conflicts between operations becomes vital in the query optimization for a query compiler and concurrency for a transaction manager. XML data require tailor-made conflict detection mechanisms since tr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011