Secure cloud storage using anonymous and blackbox traceable data access control
Secure cloud storage using anonymous and blackbox traceable data access control
复制标题
使用匿名和黑盒可追踪数据访问控制确保云存储安全
DOI:
10.1002/sec.1343
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发表时间:
2015-12
期刊:
影响因子:
--
通讯作者:
Yong Zhang
中科院分区:
文献类型:
--
作者:
Songyang Wu;Yong Zhang
In cloud storage systems, data outsourcing and untrusted service providers make data-access control become a challenging issue because traditional technologies always consider service providers as a fully trusted party. Ciphertext-policy attribute-based encryption CP-ABE shows particular advantages in this setting because this encryption gives the data owner a direct control on data-access policies. However, malicious users in traditional CP-ABE systems may leak their decryption keys in the form of a decryption device/blackbox with little risk of getting caught because no one including the key authorities can reveal them. This issue has become a major practicality concern in many data outsourcing applications e.g., financial and healthcare systems where the preservation of privacy with regard to sensitive data is critical. To address this problem, blackbox traceable CP-ABE leveraged the "traitor tracing" property of broadcast encryption to identify these malicious users. However, the size of the keys and ciphertexts in the blackbox traceable CP-ABE depends on the number of users. In this paper, we introduce an accumulator-based encryption ACC-ENC, which can be integrated with conventional non-traceable CP-ABE-based data-access control to achieve an additional blackbox traceability feature without sacrificing performance just adds O1 elements to the ciphertext and the public key. We first formally define the model of ACC-ENC and present a concrete construction that is proven fully secure; then, we illustrate applying ACC-ENC to obtain CP-ABE-based data-access control with blackbox traceability for cloud storage. Performance evaluation shows that additional computation costs of the proposition are very low compared to the original scheme. Copyright © 2015 John Wiley & Sons, Ltd.
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DOI:
10.1109/infcom.2010.5462174
发表时间:
2010-03
期刊:
2010 Proceedings IEEE INFOCOM
影响因子:
--
作者:
Shucheng Yu;Cong Wang-;K. Ren;Wenjing Lou
通讯作者:
Shucheng Yu;Cong Wang-;K. Ren;Wenjing Lou
DOI:
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发表时间:
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期刊:
IACR Cryptol. ePrint Arch.
影响因子:
--
作者:
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DOI:
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发表时间:
2009-11
期刊:
--
影响因子:
--
作者:
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DOI:
10.1007/978-3-642-31909-9_4
发表时间:
2011-09
期刊:
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通讯作者:
Saman Zarandioon;D. Yao;V. Ganapathy
DOI:
10.1109/tpds.2010.203
发表时间:
2011-07-01
影响因子:
5.3
作者:
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通讯作者:
Noh, Dong Kun