Results 241 to 250 of about 13,270 (293)

Elliptic Curve Based Proxy Re-Encryption

Proceedings of the Second International Conference on Information and Communication Technology for Competitive Strategies, 2016
Proxy re-encryption is a scheme where a semi-trusted proxy alters the confidential message of one party into a confidential message of another party without knowing the original plaintext. To do the same, various approaches are suggested in the public key set up cryptography.
V. Thangam, K. Chandrasekaran 0001
openaire   +1 more source

Non-Transferable Proxy Re-Encryption Scheme

2012 5th International Conference on New Technologies, Mobility and Security (NTMS), 2012
A proxy re-encryption (PRE) scheme allows a proxy to re-encrypt a ciphertext for Alice (delegator) to a ciphertext for Bob (delegatee) without seeing the underlying plaintext. However, existing PRE schemes generally suffer from at least one of the followings.
Hui, CK, Yiu, SM, Chim, TW, He, Y
openaire   +2 more sources

Proxy Re-Encryption Based on Homomorphic Encryption

Proceedings of the 33rd Annual Computer Security Applications Conference, 2017
In this paper, we propose an homomorphic proxy re-encryption scheme (HPRE) that allows different users to share data they outsourced homomorphically encrypted using their respective public keys with the possibility by next to process such data remotely.
Bellafqira, Reda, Coatrieux, Gouenou, Bouslimi, Dalel, Quellec, Gwénolé, Cozic, Michel   +4 more
openaire   +1 more source

Unforgeability of Re-Encryption Keys against Collusion Attack in Proxy Re-Encryption

2011
Proxy re-encryption (PRE) allows a proxy to convert a ciphertext encrypted for Alice (delegator) into a ciphertext for Bob (delegatee) by using a re-encryption key generated by Alice. In PRE, non-transferability is a desirable property that colluding proxies and delegatees cannot re-delegate decryption rights to a malicious user.
Ryotaro Hayashi 0001, Tatsuyuki Matsushita, Takuya Yoshida, Yoshihiro Fujii, Koji Okada   +4 more
openaire   +1 more source

Proxy Re-encryption from CLE to CBE

2010 International Conference on Computational Intelligence and Security, 2010
In 1998, Blaze, Bleumer, and Strauss propose a kind of cryptographic primitive called proxy re-encryption. In proxy re-encryption, a proxy can transform a ciphertext computed under Alice’s public key into one that can be opene under Bob’s decryption key. In 2007, mainly motivated b making different types of ciphertext circulate smoothly in the network,
Ping Wei 0005, Xu An Wang 0014, Xiaoyuan Yang 0002   +2 more
openaire   +1 more source

Privacy Preserving Federated Learning from Multi-Input Functional Proxy Re-Encryption

IEEE International Conference on Acoustics, Speech, and Signal Processing
Federated learning (FL) allows different participants to collaborate on model training without transmitting raw data, thereby protecting user data privacy. However, FL faces a series of security and privacy issues (e.g.
Xinyu Feng, Qingni Shen, Cong Li, Yuejian Fang, Zhonghai Wu   +4 more
semanticscholar   +1 more source

Factoring-Based Proxy Re-Encryption Schemes

2013
Proxy re-encryption (PRE) realizes delegation of decryption rights, enabling a proxy holding a re-encryption key to convert a ciphertext originally intended for Alice into an encryption of the same message for Bob, and cannot learn anything about the encrypted plaintext.
Toshiyuki Isshiki, Manh Ha Nguyen, Keisuke Tanaka   +2 more
openaire   +1 more source

A Novel Proxy Re-Encryption Technique for Secure Data Sharing in Cloud Environment

2024 International Conference on Advances in Data Engineering and Intelligent Computing Systems (ADICS)
In general, Cloud Computing refers to the storage and access of data through the internet rather than on a local computer hard drive. Cloud services assist in reducing the amount of space and money required for data storage.
K. Reddy, D. Reddy, Padamata Ramesh Babu, Anantha Raman G R, B. S   +4 more
semanticscholar   +1 more source

Certificateless Proxy Re-Encryption Without Pairings

2014
Proxy re-encryption (PRE) allows a proxy with re-encryption keys to transform a ciphertext under a given public key into a ciphertext of the same message under a different public key, and can not learn anything about the encrypted message. Due to its transformation property, PRE has many practical applications such as cloud storage, confidential email,
Kang Yang 0002, Jing Xu 0002, Zhenfeng Zhang   +2 more
openaire   +1 more source

ABP: Attribute-Based Broadcast Proxy Re-Encryption With Coalitional Game Theory

IEEE Systems Journal
This article proposes attribute-based broadcast proxy (ABP) re-encryption with coalitional game theory—a scheme to share encrypted cloud data with Internet of Things (IoT) devices. The scheme reduces the decryption costs on the receiver's side.
Sumana Maiti, S. Misra, A. Mondal
semanticscholar   +1 more source