PolTree: A Data Structure for Making Efficient Access Decisions in ABAC
PolTree: A Data Structure for Making Efficient Access Decisions in ABAC
复制标题
PolTree:ABAC 中用于做出高效访问决策的数据结构
DOI:
10.1145/3322431.3325102
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Atluri, Vijay
中科院分区:
文献类型:
--
作者:
Nath, Ronit;Das, Saptarshi;Sural, Shamik;Vaidya, Jaideep;Atluri, Vijay
In Attribute-Based Access Control (ABAC), a user is permitted or denied access to an object based on a set of rules (together called an ABAC Policy) specified in terms of the values of attributes of various types of entities, namely, user, object and environment. Efficient evaluation of these rules is therefore essential for ensuring decision making at on-line speed when an access request comes. Sequentially evaluating all the rules in a policy is inherently time consuming and does not scale with the size of the ABAC system or the frequency of access requests. This problem, which is quite pertinent for practical deployment of ABAC, surprisingly has not so far been addressed in the literature. In this paper, we introduce two variants of a tree data structure for representing ABAC policies, which we name as PolTree. In the binary version (B-PolTree), at each node, a decision is taken based on whether a particular attribute-value pair is satisfied or not. The n-ary version (N-PolTree), on the other hand, grows as many branches out of a given node as the total number of possible values for the attribute being checked at that node. An extensive experimental evaluation with diverse data sets shows the scalability and effectiveness of the proposed approach.
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DOI:
10.1109/inm.2003.1194157
发表时间:
2003-03
期刊:
IFIP/IEEE Eighth International Symposium on Integrated Network Management, 2003.
影响因子:
--
作者:
E. Al-Shaer;H. Hamed
通讯作者:
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DOI:
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2009
期刊:
IEEE International Symposium on Policies for Distributed Systems and Networks
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发表时间:
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期刊:
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影响因子:
--
作者:
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通讯作者:
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DOI:
10.1109/locs.2018.2889980
发表时间:
2018-07-01
期刊:
IEEE letters of the Computer Society
影响因子:
--
作者:
Das, Saptarshi;Sural, Shamik;Atluri, Vijayalakshmi
通讯作者:
Atluri, Vijayalakshmi