Recently, a number of extended Proxy Re-Encryptions (PRE), eg Conditional (CPRE),
identity-based PRE (IPRE) and broadcast PRE (BPRE), have been proposed for flexible …

Stablecoins have enabled the rapid growth of decentralized payments and the birth of the
new generation of payment system with cryptocurrencies and Blockchain technology …

Proxy re-encryption (PRE) enables a semi-trusted proxy to automatically convert a
delegator's ciphertext to a delegate's ciphertext without learning anything about the …

Recently Shao et al. proposed an interesting cryptographic primitive called proxy re-
encryption with keyword search (PRES). The main novelty is simultaneously realizing the …

Weng et al. introduced the notion of conditional proxy re-encryption (or C-PRE, for short),
whereby only the ciphertext satisfying one condition set by the delegator can be transformed …

In a Idendity-based proxy re-encryption (IBPRE) scheme, a proxy, converts a ciphertext for
one identity into a ciphertext for another identity without knowing the underlying plaintext …

Abstract Proxy Re-Encryption (PRE) allows one user to delegate the decryption rights of
his/her ciphertexts to another user. Since the introduction of Multi-Hop Identity-Based PRE …

Cloud is an emerging computing paradigm. It has drawn extensive attention from both
academia and industry. But its security issues have been considered as a critical obstacle in …

In this paper, aiming at providing secure cloud data sharing services in cloud storage, we
propose a scalable and controllable cloud data sharing framework for cloud users: Scanf …

Proxy Re-encryption (PRE) offers an efficient solution for enforcing access control on
outsourced data through delegation of decryption rights of a delegator to a delegatee …