Results 11 to 20 of about 6,483 (293)
Attribute‐based encryption implies identity‐based encryption [PDF]
IET Information Security, 2017 In this study, the author formally proves that designing attribute‐based encryption schemes cannot be easier than designing identity‐based encryption schemes. In more detail, they show how an attribute‐based encryption scheme which admits, at least, and policies can be combined with a ...
Herranz Sotoca, Javier, Javier Herranz
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Attacking Pairing-Free Attribute-Based Encryption Schemes [PDF]
IEEE 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
An Outsourced Attribute-Based Encryption Scheme Supporting Attribute Revocation [PDF]
Jisuanji gongcheng, 2017 Traditional Ciphertext-Policy Attribute-Based Encryption(CP-ABE) schemes have large computational overhead in key generation,decryption and attribute revocation processes.Aiming at this problem,this paper proposes an outsourced CP-ABE scheme which ...
LIU Zhusong,PENG Jiapeng
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Attribute-Based Functional Encryption on Lattices [PDF]
, 2013 We introduce a broad lattice manipulation technique for expressive cryptography, and use it to realize functional encryption for access structures from post-quantum hardness assumptions. Specifically, we build an efficient key-policy attribute-based encryption scheme, and prove its security in the selective sense from learning-with-errors ...
Boyen, Xavier, Xavier Boyen
openaire +5 more sources
Online/Offline Attribute-Based Encryption [PDF]
, 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
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Attribute-Based Encryption for Boolean Formulas
, 2019 We present attribute-based encryption (ABE) schemes for Boolean formulas that are adaptively secure under simple assumptions. Notably, our KP-ABE scheme enjoys a ciphertext size that is linear in the attribute vector length and independent of the formula size (even when attributes can be used multiple times), and we achieve an analogous result for CP ...
Kowalczyk, Lucas
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Data User-Based Attribute Based Encryption [PDF]
2020 54th Annual Conference on Information Sciences and Systems (CISS), 2020 Attribute-Based Encryption (ABE) has emerged as an information-centric public-key cryptographic system which allows a data owner to share data, according to access policy, with multiple data users based on the attributes they possess, without knowing their identities.
Ehsan Meamari +3 more
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Revocable Ciphertext-Policy Attribute-Based Encryption in Data Outsourcing Systems from Lattices
Jisuanji kexue yu tansuo, 2020 Attribute-based encryption mechanism is widely used in outsourcing environment because of its charac-teristics of “one-to-many” communication. However, users attributes often change dynamically.
YU Jinxia, YANG Chaochao, ZHANG Qichao, YAN Xixi
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Mathematical Modeling of Static Data Attribute Encryption Based on Big Data Technology
Journal of Function Spaces, 2022 Attribute encryption is an effective one to many network communication technologies, which supports flexible access control strategies and is very suitable for fine-grained access control in large-scale information systems.
Yutang Liu, Qin Zhang
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How to Hide the Real Receiver Under the Cover Receiver: CP-ABE With Policy Deniability
IEEE Access, 2020 Attribute-based encryption (ABE) is a useful tool for sharing an encrypted data to a target group. In a ciphertext-policy ABE (CP-ABE) scheme, a ciphertext includes a policy to indicate its receivers and only those receivers can correctly decrypt the ...
Po-Wen Chi, Ming-Hung Wang, Hung-Jr Shiu
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