Securely obfuscating re-encryption

Author: blgk

August undefined, 2024

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. 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 …

How Secure Are Encryption, Hashing, Encoding and Obfuscation? - Auth0

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 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 … new homes in grass valley

Secure Obfuscation of Conditional Re-encryption with Keyword …

WebPaper: Securely Obfuscating Re-Encryption. Authors: Susan Hohenberger Guy N. Rothblum Abhi Shelat Vinod Vaikuntanathan: Download: DOI: 10.1007/s00145-010-9077-7 Search … 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 … WebA new re-encryption function which can be securely obfuscated and supports multi-use transfer is proposed and the decryption of the second level cipher texts does not need … in the blood definition

CiteSeerX — Securely Obfuscating Re-encryption

Indistinguishability Obfuscation from Functional Encryption

Web15 Oct 2014 · Informally, this functionality, for a public-key encryption scheme and a function F with n possible outputs, transforms (“re-encrypts”) an encryption of a message m under an “input public ... 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 ... new homes in granite bayWebWe first introduce the notion of Randomized Functional Encryption (RFE), a generalization of Functional Encryption dealing with randomized functionalities of interest in its own right, … new homes in granville ohio

"Web24 Feb 2014 · It is proved that the obfuscator exposes no more information than the program’s black- box functionality, and achieves virtual black-box security, in the generic graded encoded scheme model. We present a new general-purpose obfuscator for all polynomial size circuits. The obfuscator uses graded encoding schemes, a generalization … " - Securely obfuscating re-encryption

Securely obfuscating re-encryption

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 … Web21 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 …

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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 …

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, 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 …

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). http://publications.csail.mit.edu/abstracts/abstracts07//hohenberger/hohenberger.html

WebProxy re-encryption (PRE) is a highly useful cryptographic primitive whereby Alice and Bob can endow a proxy with the capacity to change ciphertext recipients from Alice to Bob, without the proxy itself being able to decrypt, thereby providing delegation of …

Web8 Sep 2010 · Securely Obfuscating Re-Encryption. Susan Hohenberger, Guy N. Rothblum, Abhi Shelat &. Vinod Vaikuntanathan. Journal of Cryptology 24 , 694–719 ( 2011) Cite … new homes in gray court scWebCiteSeerX — Securely Obfuscating Re-encryption CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): We present a positive obfuscation result for a traditional cryptographic functionality. new homes in gray tn realtorWeb1 Jan 2007 · The security requirement of obfuscation is defined by the indistinguishability between the obfuscation output and a real re-encryption oracle. The case that receiver Bob be the distinguisher is... in the blood guitar chordsWeb23 May 2011 · Obfuscating programs has been a fascinating area of theoretical cryptography in recent years. Hohenberger et al. in TCC'07 and Hada in EUROCRYPT'10 showed that re-encryption and encrypted signature are obfuscateable and their constructions are dedicated and the security proofs are complicated. new homes in grass valley caWeb1 Jul 2014 · Subsequent research has showed further negative results as well as positive results for obfuscating very specific families of circuits, all with respect to black box obfuscation. ... V. Vaikuntanathan, Securely obfuscating re-encryption, in TCC 2007 (2007), pp. 233-252. Google Scholar Digital Library; B. Lynn, M. Prabhakaran, A. Sahai, Positive ... in the blood filmtv.itWebCiteSeerX — Securely Obfuscating Re-encryption CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract. We present the first positive obfuscation result for a traditional cryptographic functionality. in the blood filmWebWe 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 … new homes in grayswood