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An Attribute Revocable CP-ABE Scheme
2019 Seventh International Conference on Advanced Cloud and Big Data (CBD), 2019Ciphertext storage can effectively solve the security problems in cloud storage, among which the ciphertext policy attribute-based encryption (CP-ABE) is more suitable for ciphertext access control in cloud storage environment for it can achieve one-to-many ciphertext sharing. The existing attribute encryption scheme CP-ABE has problems with revocation
Guangli Xiang +4 more
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An Expressive Hidden Access Policy CP-ABE
2017 IEEE Second International Conference on Data Science in Cyberspace (DSC), 2017Ciphertext Policy - Attribute Based Encryption (CPABE) has emerged as a feasible solution to address challenges of access control to a diverse set of users. In CP-ABE, owner encrypts its data under a policy of attributes, while any data consumer satisfying it can decrypt the data.
Fawad Khan +3 more
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Traceable and revocable CP-ABE with shorter ciphertexts
Science China Information Sciences, 2016本文提出了一种新的“cancellation technique”,并将该新技术用于构造黑盒可追踪和可撤销的密文策略属性基加密方案的构造中,在不牺牲其他参数(公开参数长度、密钥长度等)的情况下,本文构造出一个(与当前最好结果相比)更短密文、更小计算代价的黑盒可追踪与可撤销密文策略属性基加密方案。值得一提的是,这种新的“cancellation technique”不仅仅在构造更短密文更高效的黑盒可追踪与可撤销密文策略属性基加密方案中起作用,同时也对其他加密或签名方案更短密文或者是更高效的构造提供了参考价值。
Jianting Ning +3 more
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CP-ABE for Circuits (and More) in the Symmetric Key Setting
2020The celebrated work of Gorbunov, Vaikuntanathan and Wee [GVW13] provided the first key policy attribute based encryption scheme (ABE) for circuits from the Learning With Errors (LWE) assumption. However, the arguably more natural ciphertext policy variant has remained elusive, and is a central primitive not yet known from LWE.
Shweta Agrawal 0001, Shota Yamada 0001
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OE-CP-ABE: Over-Encryption Based CP-ABE Scheme for Efficient Policy Updating
2017Ciphertext-Policy Attribute Based Encryption (CP-ABE) is a promising technique to enable fine-grained access control for data storage and sharing. In CP-ABE, data are encrypted with an access policy on attributes, so the frequent policy updating has always been a challenging issue for data owners.
Jialu Hao +4 more
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Multiple-authority-keys CP-ABE
2011 IEEE 3rd International Conference on Communication Software and Networks, 2011Functional encryption provides more sophisticated and flexible relations between the encryption-key and decryption-key. Previous FE systems only allow for functionalities that take in a single authority key and plaintext as inputs. In this paper, a Multiple-Authority-Keys Attribute-Based Encryption system is presented.
Xiaoyuan Yang, Weiyi Cai, Ping Wei
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Cryptanalysis of a CP-ABE scheme with policy in normal forms
Information Processing Letters, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Syh-Yuan Tan, Wun-She Yap
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A Traceable Outsourcing CP-ABE Scheme with Attribute Revocation
2017 IEEE Trustcom/BigDataSE/ICESS, 2017Ciphertext-Policy Attribute-based Encryption (CP-ABE) is a useful cryptographic scheme and is being considered for cloud application as more and more users leverage cloud platforms to store and process their data. However, existing CP-ABE schemes still have a number of limitations that make it not effective to be used in a practical application ...
Ruoqing Zhang +5 more
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Journal of Ambient Intelligence and Humanized Computing, 2021
In recent years, attribute-based encryption (ABE) provides a new idea to help researchers solving the problem of data privacy protection in cloud. But there are two issues in traditional ABE, the first issue is that the attributes in the access structures will be sent to users in cleartext together with the ciphertext. So a attacker has the opportunity
Wei Zhang 0205 +3 more
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In recent years, attribute-based encryption (ABE) provides a new idea to help researchers solving the problem of data privacy protection in cloud. But there are two issues in traditional ABE, the first issue is that the attributes in the access structures will be sent to users in cleartext together with the ciphertext. So a attacker has the opportunity
Wei Zhang 0205 +3 more
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Efficient CP-ABE with Non-monotonic Access Structures
2017Ciphertext policy attribute based encryption (CP-ABE) systems are suitable for supporting access control with complex attribute-based policies. But there is a few CP-ABE systems that support non-monotonic access structures. In this paper we present an efficient CP-ABE construction which supports \(\mathbf {NOT}\) operation as well as m-of-n threshold ...
Yong Cheng +3 more
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