Results 211 to 220 of about 13,270 (293)

Improved proxy re-encryption schemes with applications to secure distributed storage

ACM Transactions on Information and System Security, 2006
Giuseppe Ateniese, Matthew Green, Susan Hohenberger   +2 more
exaly   +2 more sources

Universal Proxy Re-Encryption

2021
We put forward the notion of universal proxy re-encryption (UPRE). A UPRE scheme enables a proxy to convert a ciphertext under a (delegator) public key of any existing public-key encryption (PKE) scheme into another ciphertext under a (delegatee) public key of any existing PKE scheme (possibly different from the delegator one).
Nico Döttling, Ryo Nishimaki
openaire   +2 more sources

A Verifiable and Fair Attribute-Based Proxy Re-Encryption Scheme for Data Sharing in Clouds

IEEE Transactions on Dependable and Secure Computing, 2021
To manage outsourced encrypted data sharing in clouds, attribute-based proxy re-encryption (ABPRE) has become an elegant primitive. In ABPRE, a cloud server can transform an original recipient’s ciphertext to a new one of a shared user’s.
Chunpeng Ge, W. Susilo, J. Baek, Zhe Liu, Jinyue Xia, Liming Fang   +5 more
semanticscholar   +1 more source

Attribute-Based Proxy Re-Encryption With Direct Revocation Mechanism for Data Sharing in Clouds

IEEE Transactions on Dependable and Secure Computing, 2023
Cloud computing, which provides adequate storage and computation capability, has been a prevalent information infrastructure. Secure data sharing is a basic demand when data was outsourced to a cloud server. Attribute-based proxy re-encryption has been a
Chunpeng Ge, Willy Susilo, Zhe Liu, J. Baek, Xiapu Luo, Liming Fang   +5 more
semanticscholar   +1 more source

Proxy Re-encryption with Keyword Search from Anonymous Conditional Proxy Re-encryption

2011 Seventh International Conference on Computational Intelligence and Security, 2011
Proxy re-encryption (PRE) allows a proxy to transform a cipher text for Alice (delegator) to be the one which can be decrypted by Bob (delegatee). Since it is introduced by Blaze et al. in 1998, many variants of PRE have been proposed. In this paper, we concentrate on two of them: anonymous conditional proxy re-encryption (ACPRE) and constrained proxy ...
Weidong Zhong, Xu An Wang 0014, Ziqing Wang, Yi Ding   +3 more
openaire   +1 more source

Identity-Based Broadcast Proxy Re-Encryption for Flexible Data Sharing in VANETs

IEEE Transactions on Information Forensics and Security, 2023
Data sharing is an integral part of vehicular ad hoc networks (VANETs), which provide drivers with safe and comfortable driving environments. However, when data are shared among multiple vehicles, they must be encrypted multiple times.
Jing Zhang, Shuangshuang Su, Hong Zhong, Jie Cui, De-biao He   +4 more
semanticscholar   +1 more source

Fuzzy conditional proxy re-encryption

Science China Information Sciences, 2012
Weng et al. introduced the notion of conditional proxy re-encryption (C-PRE), whereby only the ciphertext satisfying one condition set by Alice can be re-encrypted by the proxy. To achieve more fine-grained delegation on the condition set, we introduce a new cryptographic primitive called fuzzy conditional proxy re-encryption (FC-PRE) in which we view ...
Liming Fang 0001, Jiandong Wang, Chunpeng Ge 0001, Yongjun Ren   +3 more
openaire   +1 more source

Inter-hospital secure healthcare data exchange process by using proxy re-encryption and blockchain technology

Comput. Biol. Medicine
The secure exchange of Electronic Medical Records (EMRs) between hospitals is crucial for safeguarding the security of healthcare data and ensuring its integrity.
M. N. Hasan, Sagnik Datta, Suyel Namasudra   +2 more
semanticscholar   +1 more source

A CCA-Secure Puncturable Attribute-Based Proxy Re-Encryption Scheme

IEEE Internet of Things Journal
With the rapid development of the Internet of Things (IoT) and the increase in the number of various sensor devices, there is an increasingly urgent need for cross-domain sharing of massive data in scenarios, such as industrial control and smart ...
Ze Li, Guozhen Shi
semanticscholar   +1 more source

Combined Proxy Re-encryption

2014
Among the variants of public key encryption schemes, the proxy re-encryption primitive (PRE) allows a user, say Alice, to decide that a delegate, say Bob, will be able to read her private messages. This is made possible thanks to a third party, the proxy, which is given a re-encryption key to transform a ciphertext intended to Alice into one intended ...
Sébastien Canard, Julien Devigne
openaire   +1 more source