This paper analyzes the secure access delegation problem, which occurs naturally in the
cloud, and postulate that Proxy Re-Encryption is a feasible cryptographic solution, both from …

We develop two IND-CPA-secure multihop unidirectional Proxy Re-Encryption (PRE)
schemes by applying the Ring-LWE (RLWE) key switching approach from the homomorphic …

Proxy re-encryption (PRE), as a promising cryptographic primitive for secure data sharing in
clouds, has been widely studied for decades. PRE allows the proxies to use the re …

Proxy re-encryption (PRE) provides a promising solution for encrypted data sharing in public
cloud. When data owner Alice is going to share her encrypted data with data consumer Bob …

We revisit the notion of proxy re-encryption (PRE PRE), an enhanced public-key encryption
primitive envisioned by Blaze et al.(E urocrypt'98) and formalized by Ateniese et …

Proxy re-encryption (PRE) allows a proxy with a re-encryption key to translate a ciphertext
intended for Alice (delegator) to another ciphertext intended for Bob (delegatee) without …

Cloud computing is an emergent computing paradigm; however, data security is a significant
issue in recent time while outsourcing the data to the cloud preventing users to upload their …

The concept of proxy re-encryption (PRE) dates back to the work of Blaze, Bleumer, and
Strauss in 1998. PRE offers delegation of decryption rights, ie, it securely enables the re …

Homomorphic Proxy Re-Encryption (HPRE) is an extension of Proxy Re-Encryption (PRE)
which combines the advantages of both Homomorphic Encryption (HE) and PRE. A HPRE …

Abstract Updatable Encryption (UE) and Proxy Re-encryption (PRE) allow re-encrypting a
ciphertext from one key to another in the symmetric-key and public-key settings, respectively …