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Attacking Pairing-Free Attribute-Based Encryption Schemes [PDF]

open access: yesIEEE Access, 2020
Combining several results that have been published in the last years, it is known that it is impossible to design simple and secure attribute-based encryption schemes that work in (classical) settings like the RSA or the pairing-free discrete logarithm ...
Javier Herranz
doaj   +2 more sources

Online/Offline Attribute-Based Encryption [PDF]

open access: yes, 2014
Attribute-based encryption ABE is a type of public key encryption that allows users to encrypt and decrypt messages based on user attributes. For instance, one can encrypt a message to any user satisfying the boolean formula "crypto conference attendee" AND "PhD student" OR "IACR member". One drawback is that encryption and key generation computational
Susan Hohenberger, Brent Waters
openaire   +3 more sources

Privacy Protection and Data Security in Cloud Computing: A Survey, Challenges, and Solutions

open access: yesIEEE Access, 2019
Privacy and security are the most important issues to the popularity of cloud computing service. In recent years, there are many research schemes of cloud computing privacy protection based on access control, attribute-based encryption (ABE), trust and ...
Pan Jun Sun
doaj   +1 more source

An Attribute Multiple Encryption Scheme Based on Lattices [PDF]

open access: yesJisuanji gongcheng, 2018
In order to improve the operating efficiency and the security of encryption and decryption of attribute encryption system,the theory of lattice instead of bilinear pairings is used to reduce the computational complexity of encryption and decryption ...
TANG Haiting,WANG Xueming
doaj   +1 more source

Targeted Homomorphic Attribute-Based Encryption

open access: yes, 2016
In key-policy attribute-based encryption ABE, messages are encrypted respective to attributes x, and keys are generated respective to policy functions f. The ciphertext is decryptable by a key only if $$fx=0$$fx=0. Adding homomorphic capabilities to ABE is a long standing open problem, with current techniques only allowing compact homomorphic ...
Brakerski, Zvika   +3 more
openaire   +4 more sources

Multi-Keywords Searchable Attribute-Based Encryption With Verification and Attribute Revocation Over Cloud Data

open access: yesIEEE Access, 2023
The convenience and efficient management of cloud servers have resulted in an increasing number of users opting to store their data in the cloud. Consequently, data-outsourcing services relying on cloud servers have been extensively deployed and utilized.
Hua Shen, Jian Zhou, Ge Wu, Mingwu Zhang
doaj   +1 more source

Ciphertext-policy Weighted Attribute-based Encryption Scheme in Cloud Computing

open access: yes工程科学与技术, 2013
:By analyzing existing ciphertext-policy attribute-based encryption scheme, ciphertext-policy weighted attribute-based encryption scheme was proposed. To solve the existing scheme without considering the attribute with weight, the concept of weight was ...
刘西蒙   +5 more
doaj  

Fine-grained attribute update and outsourcing computing access control scheme in fog computing

open access: yesTongxin xuebao, 2021
To slove the problem that in the fog computing environment with comparatively high low latency demand, ciphertext policy attribute based encryption (CP-ABE) faced the problems of high encryption and decryption overhead and low efficiency of attribute ...
Ruizhong DU, Peiwen YAN, Yan LIU
doaj   +2 more sources

Ciphertext-Policy Attribute-Based Encryption [PDF]

open access: yes2007 IEEE Symposium on Security and Privacy (SP '07), 2007
In several distributed systems a user should only be able to access data if a user posses a certain set of credentials or attributes. Currently, the only method for enforcing such policies is to employ a trusted server to store the data and mediate access control.
John Bethencourt   +2 more
openaire   +2 more sources

RLWE-based key-policy ABE scheme

open access: yesTongxin xuebao, 2016
Based on the attribute-based encryption(ABE) scheme which was proposed by Brakerski and constructed on the LWE problem,a RLWE-based key-policy ABE scheme was presented.Efficiency and key size of this scheme over-takes old ones which are based on the LWE ...
Ze-dong SUN   +3 more
doaj   +2 more sources

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