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Securely obfuscating re-encryption

WebWe first introduce the notion of Randomized Functional Encryption RFE, a generalization of Functional Encryption dealing with randomized functionalities of interest in its own right, and show how to construct an RFE from a standard semantically secure FE. Web1 Oct 2014 · Specifically, we show that our definitions have the following properties: Usefulness: Securely obfuscating (the encryption function of) a secure private-key encryption scheme yields a secure ...

Securely Obfuscating Re-Encryption Journal of Cryptology

WebCiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): We present a positive obfuscation result for a traditional cryptographic functionality. This positive result stands in contrast to well-known impossibility results [3] for general obfuscation and recent impossibility and improbability [13] results for obfuscation of many cryptographic … Web24 Aug 2012 · Encryption involves storing some secret data, and the security of the secret data depends on keeping a separate "key" safe from the bad guys. Obfuscation is hiding … genetic modified organisms examples https://earnwithpam.com

Lattice-based obfuscation for re-encryption functions

WebHohenberger et al. got a result of securely obfuscating re-encryption [20], which is the first positive result for obfuscating an encryption functionality and against a series of impossibility results [18, 16, 4]. Since the introduction of PRE by Blaze, Bleumer, and Strauss [6], there have been many papers [6, 21, 2, WebA facility operating in a first mobile communication device (MCD) is described. The facility generates a key pair made up of a private key and a public key for use by the first MCD in communicating with other MCDs. The public key has information content. The facility constructs a first public key component and a second public key component, that each … Web1.2 The Obfuscated Re-Encryption Scheme Comparison with Prior Work. Mambo and Okamoto [MO97] noted the pop-ularity of re-encryption programs in practical … genetic modifiers of thalassemia

Securely Obfuscating Re-encryption. Request PDF - ResearchGate

Category:Lattice‐based obfuscation for re‐encryption functions

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Securely obfuscating re-encryption

Lattice-based obfuscation for re-encryption functions

WebWe present a positive obfuscation result for a traditional cryptographic functionality. This positive result stands in contrast to well-known impossibility results (Barak et al. in … WebA New Framework for Obfuscating Re-Encryption" New relaxed de nitions" New tools for modular analysis" Secure obfuscator from LWE for 1.(standard) re-encryption ... Applications of Re-Encryption Secure distributed le servers, Outsource ltering of encrypted spam, iTunes DRM system, Constructing FHE, ABE... 7/25. Outline Introduction

Securely obfuscating re-encryption

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Webthe re-encryption scheme presented in this paper may prove to be more secure than known re-encryption schemes, which only have the semantic security property. Average-Case … http://publications.csail.mit.edu/abstracts/abstracts07//hohenberger/hohenberger.html

Web1 Jan 2007 · Proxy re-encryption (PRE) securely enables the re-encryption of ciphertexts from one key to another, without relying on trusted parties, i.e., it offers delegation of … WebWhereas other positive obfuscation results in the standard model apply to very simple point functions, our obfuscation result applies to the significantly more complicated and widely …

WebJ. Cryptol. (2011) 24: 694–719 DOI: 10.1007/s00145-010-9077-7 Securely Obfuscating Re-Encryption∗ Susan Hohenberger† Johns Hopkins University, Baltimore, MD 21218, USA … Web26 Jun 2024 · In particular we obtain: public key encryption, short "hash-and-sign" selectively secure signatures, chosen-ciphertext secure public key encryption, non-interactive zero knowledge proofs (NIZKs ...

WebCiteSeerX — Securely Obfuscating Re-encryption CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): We present a positive obfuscation result for a traditional cryptographic functionality.

WebSecure obfuscation of the re‐encryption circuit can solve this problem. 4 Obfuscation of Re‐encryption Functionality 4.1 The obfuscation construction. ... Willy Susilo, Obfuscating Re-encryption Algorithm With Flexible and Controllable Multi-Hop on Untrusted Outsourcing Server, IEEE Access, 10.1109/ACCESS.2024.2771335, 5, (26419-26434), (2024). genetic molecule crossword clueWebWhereas other positive obfuscation results in the standard model apply to very simple point functions, our obfuscation result applies to the significantly more complicated and widely … genetic modifying babiesdeaths in turkey and syria earthquakeWeb8 Sep 2010 · Securely Obfuscating Re-Encryption. Susan Hohenberger, Guy N. Rothblum, Abhi Shelat &. Vinod Vaikuntanathan. Journal of Cryptology 24 , 694–719 ( 2011) Cite … genetic modifiers of sickle cell diseaseWebA secure obfuscation of a special functionality of oblivious signature (OS) is constructed in this paper, which contains two-step verifying processions and some security definitions of obfuscation can be extended to Zero Knowledge Proof (ZKP). Although obfuscation in cryptography is one of the most intriguing and attractive open problems, only a few … deaths in us covid yesterdayWebWe first introduce the notion of Randomized Functional Encryption (RFE), a generalization of Functional Encryption dealing with randomized functionalities of interest in its own right, … genetic modularityWeb21 Feb 2007 · This paper construct a new re-encryption function and securely obfuscate it based on the standard learning with error LWE assumption, which is proved to be … genetic molecular research