Results 151 to 160 of about 5,213 (200)

A Secure Medical Data Framework Integrating Blockchain and Edge Computing: An Attribute-Based Signcryption Approach. [PDF]

Sensors (Basel)
Dou T, Zheng Z, Qiu W, Ge C.
europepmc   +1 more source

An optimized dynamic attribute-based searchable encryption scheme. [PDF]

PLoS One
Khan S, Khan S, Waheed A, Mehmood G, Zareei M, Alanazi F.   +5 more
europepmc   +1 more source

A hybrid blockchain-based solution for secure sharing of electronic medical record data. [PDF]

PeerJ Comput Sci
Han G, Ma Y, Zhang Z, Wang Y.
europepmc   +1 more source

Blockchain-enabled data governance for privacy-preserved sharing of confidential data. [PDF]

PeerJ Comput Sci
Zhang J, Datta A.
europepmc   +1 more source

Ciphertext Policy Attribute-Based Proxy Re-encryption

Lecture Notes in Computer Science, 2010
We present a novel ciphertext policy attribute-based proxy re-encryption (CP-AB-PRE) scheme. The ciphertext policy realized in our scheme is AND-gates policy supporting multi-value attributes, negative attributes and wildcards. Our scheme satisfies the properties of PRE, such as unidirectionality, non-interactivity and multi-use. Moreover, the proposed
Jianbin Hu, Luo Song, Hu Jianbin
exaly   +3 more sources

Mediated Ciphertext-Policy Attribute-Based Encryption and Its Application [PDF]

, 2009
In Ciphertext-Policy Attribute-Based Encryption (CP-ABE), a user secret key is associated with a set of attributes, and the ciphertext is associated with an access policy over attributes. The user can decrypt the ciphertext if and only if the attribute set of his secret key satisfies the access policy specified in the ciphertext. Several CP-ABE schemes
Luan Ibraimi, Milan Petkovic, Svetla Nikova, Pieter H. Hartel, Willem Jonker   +4 more
core   +4 more sources

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An expressive and provably secure Ciphertext-Policy Attribute-Based Encryption

Information Sciences, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
K Kuppusamy
exaly   +3 more sources

A ciphertext-policy attribute-based encryption scheme with constant ciphertext length [PDF]

International Journal of Applied Cryptography, 2009
An Attribute-Based Encryption (ABE) is an encryption scheme, where users with some attributes can decrypt ciphertexts associated with these attributes. However, the length of the ciphertext depends on the number of attributes in previous ABE schemes.
Keita Emura, Atsuko Miyaji, Kazumasa Omote, Akito Nomura, Masakazu Soshi   +4 more
openaire   +2 more sources

Traceable-then-revocable ciphertext-policy attribute-based encryption scheme

Future Generation Computer Systems, 2019
Abstract A traceable ciphertext-policy attribute-based encryption (T-CPABE) scheme can trace a malicious user, who may leak her/his decryption privilege to a third party for some benefits. However, even if the malicious user is traced, the existing schemes cannot revoke her/him from the cryptosystems.
Zhenhua Liu 0001, Shuhong Duan, Peilin Zhou, Baocang Wang   +3 more
exaly   +2 more sources

A Ciphertext Policy Attribute-Based Encryption Scheme without Pairings

, 2012
Sahai and Waters [34] proposed Attribute-Based Encryption (ABE) as a new paradigm of encryption algorithms that allow the sender to set a policy to describe who can read the secret data. In recent years, lots of attribute-based schemes appeared in literatures, but almost all the schemes, to the best of our knowledge, are constructed from pairings.
Jiang Zhang 0001, Zhenfeng Zhang
openaire   +2 more sources