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Conditional proxy re-encryption

WebTo overcome the limitation of existing PRE systems, we introduce the notion of conditional proxy re-encryption (C-PRE), whereby only ci-phertext satisfying a specific … WebAug 4, 2012 · A FC-PRE scheme allows for a proxy with the re-encryption key for a conditional keyword set, W, to re-encrypt a ciphertext encrypted with a conditional keyword set, W ′, if and only if W and W ′ are close to each other as measured by the “set overlap” distance metric.

Identity-Based Conditional Proxy Re-Encryption IEEE …

WebAttribute-based conditional proxy re-encryption (AB-CPRE) allows delegators to carry out attribute-based control on the delegation of decryption by setting policies and attribute vectors. The fine-grained control of AB-CPRE makes it suitable for a variety of applications, such as cloud storage and distributed file systems. WebConditional proxy re-encryption (CPRE) enables delegation of decryption rights, and is useful in many applications. In this paper, we present a ciphertext-policy attribute based CPRE scheme,... tav ris https://pittsburgh-massage.com

PRECISE: Identity-based private data sharing with conditional …

WebJun 3, 2024 · Weng, Deng and Chu put forward the concept of conditional proxy re-encryption 17. In conditional proxy re-encryption scheme, only cipher-text that meets certain conditions can be re-encrypted by ... WebDec 1, 2024 · In this paper, we propose a timed-release proxy conditional reencryption scheme for cloud computing. Not only is the privacy of users' files guaranteed but also each user can freely share some... WebJul 19, 2015 · A proxy re-encryption (PRE) allows a data owner to delegate the decryption rights of some encrypted data stored on the cloud without revealing the dat ... Kaitai Liang, Willy Susilo, Joseph K. Liu, Duncan S. Wong, Efficient and Fully CCA Secure Conditional Proxy Re-Encryption from Hierarchical Identity-Based Encryption, The Computer … brima holst\\u0026crane ltd

Attribute-Based Conditional Proxy Re-encryption in the

Category:Fine-Grained Conditional Proxy Re-Encryption and Application

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Conditional proxy re-encryption

Identity-Based Conditional Proxy Re-Encryption IEEE …

WebProxy re-encryption (PRE) allows a semi-trusted proxy with a re-encryption key to transform a ciphertext intended for Alice (i.e. delegator) to another ciphertext intended for … WebA Novel Revocable and Identity-Based Conditional Proxy Re-Encryption Scheme With Ciphertext Evolution for Secure Cloud Data Sharing . Proxy re-encryption (PRE), with the unique ciphertext transformation ability, enables various ciphertext authorization applications to be implemented efficiently. However, most existing PRE schemes mainly focus ...

Conditional proxy re-encryption

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WebConditional proxy re-encryption (CPRE) enables delegation of decryption rights, and is useful in many applications. In this paper, we present a ciphertext-policy attribute based CPRE scheme, together with a formalization of the primitive and its security proof. We further propose applying the scheme for fine-grained encryption of cloud data. WebKeywords: Conditional proxy re-encryption · Learning with errors · Fine-grained control 1 Introduction Proxy re-encryption (PRE) allows a semi-trusted proxy with a re-encryption key to transform a ciphertext intended for Alice (i.e. delegator) to another ciphertext intended for Bob (i.e.delegatee) without revealing the underlying plaintext [5].

http://www.mysmu.edu/faculty/xhding/publications/Conditional%20Proxy%20Re-encryption%20Secure%20against%20Chosen-ciphertext%20Attack.pdf WebAttribute-based conditional proxy re-encryption (AB-CPRE) allows delegators to carry out attribute-based control on the delegation of decryption by setting policies and attribute …

WebConditional Proxy Broadcast Re-Encryption (CPBRE), which was proposed by Chu et al. [14], can further reduce the cost incurred by TR-PRE. Speci - cally, CPBRE allows a delegator to delegate the decryption rights of a broadcast encryption to a set of delegatees, and to specify a condition to control the re-encryption power of the proxy. In CPBRE ... WebWe will define universal conditional proxy re-encryption (UCPRE) in Section 3. Our UCPRE allows the proxy to transfer the ciphertext of the delegator under an encryption scheme into the ciphertext of the delegatee under a (possibly different) encryption scheme .

WebKeywords: conditional attribute-based proxy re-encryption, honestly re-encryption attacks, learning with errors 1 Introduction As for everyone familiar with public-key cryptography, certainly don’t be unfa-miliar with proxy re-encryption [4], a cryptographic primitive proposed by Blaze, Bleumer, and Strauss. brima i loveWebMar 27, 2015 · Conditional Identity-Based Broadcast Proxy Re-Encryption and Its Application to Cloud Email Abstract: Recently, a number of extended Proxy Re … tavs700/10 philipsWebMar 27, 2015 · Conditional Identity-Based Broadcast Proxy Re-Encryption and Its Application to Cloud Email Abstract: Recently, a number of extended Proxy Re-Encryptions (PRE), e.g. Conditional (CPRE), identity-based PRE (IPRE) and broadcast PRE (BPRE), have been proposed for flexible applications. tavorus jones hudlWebNov 4, 2024 · A New Kind of Conditional Proxy Re-Encryption for Secure Cloud Storage. Abstract: Secure cloud storage has important applications in our big data-driven society, … brimah razakWebSep 1, 2024 · Conditional proxy re-encryption. An CPRE scheme with fine-grained access policy comprises the following algorithms [34]. (1) Setup (1 λ): The setup … brima i’mWebOct 9, 2014 · Conditional proxy re-encryption (CPRE) enables delegation of decryption rights, and is useful in many applications. In this paper, we present a ciphertext-policy attribute based CPRE scheme,... tav poolsWebConditional proxy re-encryption (CPRE) aims at restricting the transfor-mation capability of the proxy, such that a transformation by the proxy can succeed only if the prescribed … brima instagram