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دسته بندی:
داده های بزرگ - big data
سال انتشار:
2018
عنوان انگلیسی مقاله:
Scalable and secure access control policy update for outsourced big data
ترجمه فارسی عنوان مقاله:
بروزرسانی سیاست کنترل دسترسی مقیاس پذیر و امن برای داده های بزرگ برون سپاری شده
منبع:
Sciencedirect - Elsevier - Future Generation Computer Systems, 79 (2018) 364-373: doi:10:1016/j:future:2017:06:014
نویسنده:
Somchart Fugkeaw *, Hiroyuki Sato
چکیده انگلیسی:
Ciphertext Policy Attribute-based Encryption (CP-ABE) is proven to be one of the most effective ap
proaches to data access control in data outsourcing environment such as cloud computing since it provides
efficient key management based on user attributes of multiple users in accessing shared data. However,
dealing with policy update limits the efficiency of the CP-ABE. In CP-ABE scheme, the access policy is used
as a core element for data encryption. Hence, if the policy is updated, the data owner needs to re-encrypt
files and send them back to the cloud. This incurs overheads including computation, communication, and
maintenance cost at the data owner side. The computation and communication cost are very expensive
if the outsourcing environment is devoted to ‘‘big data’’. In this paper, we extend the capability of our
access control scheme: C-CP-ARBE to be capable of supporting secure and flexible policy updates in the
big data outsourcing environment. We develop a secure policy updating algorithm and propose a very
lightweight proxy re-encryption (VL-PRE) technique to enable the policy updating to be done in the cloud
in an efficient and computationally cost effective manner. Finally, we demonstrate the efficiency and
performance of our proposed scheme through the implementation.
Keywords: CP-ABE ، Data access control ، Cloud computing ، Policy update ، Proxy re-encryption
قیمت: رایگان
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