Yepeng Liu1, 2, Yongjun Ren1, 2, *, Qirun Wang3, Jinyue Xia4
Journal of Cyber Security, Vol.2, No.1, pp. 1-8, 2020, DOI:10.32604/jcs.2020.05878
Abstract With the diversification of electronic devices, cloud-based services have
become the link between different devices. As a cryptosystem with secure conversion
function, proxy re-encryption enables secure sharing of data in a cloud environment.
Proxy re-encryption is a public key encryption system with ciphertext security conversion
function. A semi-trusted agent plays the role of ciphertext conversion, which can convert
the user ciphertext into the same plaintext encrypted by the principal’s public key. Proxy
re-encryption has been a hotspot in the field of information security since it was proposed
by Blaze et al. [Blaze, Bleumer and Strauss More >
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