Key-Policy Attribute-Based Encryption from Bilinear Maps

2017 ◽  
pp. 28-42
Author(s):  
Ferucio Laurenţiu Ţiplea ◽  
Constantin Cătălin Drăgan ◽  
Anca-Maria Nica
Keyword(s):  
Bilinear Maps ◽  
Attribute Based Encryption ◽  
Key Policy

Key-policy attribute-based encryption against continual auxiliary input leakage

2019 ◽  
Vol 470 ◽  
pp. 175-188 ◽  
Author(s):  
Jiguo Li ◽  
Qihong Yu ◽  
Yichen Zhang ◽  
Jian Shen
Keyword(s):  
Attribute Based Encryption ◽  
Key Policy ◽  
Auxiliary Input

Unbounded Key-Policy Attribute-Based Encryption With Black-Box Traceability

2020 ◽  
Author(s):  
yunxiu ye ◽  
Zhenfu Cao ◽  
Jiachen Shen
Keyword(s):  
Control Method ◽  
Black Box ◽  
Broadcast Encryption ◽  
Constant Number ◽  
Malicious User ◽  
Attribute Based Encryption ◽  
Key Policy ◽  
Actual Operation ◽  
Attribute Based Access Control ◽  
And Performance

Abstract Attribute-based encryption received widespread attention as soon as it proposes. However, due to its specific characteristics, the attribute-based access control method is not flexible enough in actual operation. In addition, since access authorities are determined according to users' attributes, users sharing the same attributes are difficult to distinguish. Once a malicious user makes illicit gains by their decryption authorities, it is difficult to trace specific users. This paper follows the practical demand to propose a more flexible key-policy attribute-based encryption scheme with black-box traceability. The scheme has a constant number of constant parameters which can be utilized to construct attribute-related parameters flexibly, and the method of traitor tracing in broadcast encryption is introduced to achieve effective malicious user tracing. In addition, the security and feasibility can be proved by the security proofs and performance evaluation in this paper.

scholarly journals Key Policy Attribute Based Encryption in Cloud Storage

2016 ◽  
Vol 18 (05) ◽  
pp. 64-71 ◽  
Author(s):  
Prof. Dipa Dharmadhikari ◽  
Sonali Deshpande
Keyword(s):  
Cloud Storage ◽  
Attribute Based Encryption ◽  
Key Policy
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