Results 21 to 30 of about 959,083 (268)

Long-Term Security and Universal Composability [PDF]

open access: yesJournal of Cryptology, 2007
Algorithmic progress and future technological advances threaten today's cryptographic protocols. This may allow adversaries to break a protocol retrospectively by breaking the underlying complexity assumptions long after the execution of the protocol.
Jörn Müller-Quade, Dominique Unruh
openaire   +3 more sources

Universally Composable Key-Management [PDF]

open access: yes, 2013
We present the first universally composable key-management functionality, formalized in the GNUC framework by Hofheinz and Shoup. It allows the enforcement of a wide range of security policies and can be extended by diverse key usage operations with no need to repeat the security proof.We illustrate its use by proving an implementation of a security ...
Kremer, Steve   +2 more
openaire   +5 more sources

AUC: Accountable Universal Composability [PDF]

open access: yes, 2022
Accountability is a well-established and widely used security concept that allows for obtaining undeniable cryptographic proof of misbehavior, thereby incentivizing honest behavior.
Daniel Rausch, Mike Graf, Ralf Küsters
core   +1 more source

Universally Composable Symbolic Security Analysis [PDF]

open access: yesJournal of Cryptology, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ran Canetti, Jonathan Herzog
openaire   +3 more sources

Universally Composable Oblivious Transfer with Low Communication

open access: yesApplied Sciences, 2023
In this paper, a universally composable 1-out-of-N oblivious transfer protocol with low communication is built. This protocol obtained full simulation security based on the modulo learning with rounding (Mod-LWR) assumption.
Jiashuo Song   +5 more
doaj   +1 more source

Simple and flexible universal composability : definition of a framework and applications [PDF]

open access: yes, 2020
Security protocols, such as TLS, SSH, IEEE~802.11, and DNSSEC, have become crucial tools in modern society to protect people, data, and infrastructure.
Rausch, Daniel
core   +1 more source

Universally Composable Key-Evolving Signature [PDF]

open access: yes6th International Conference on Computer Information Systems and Industrial Management Applications (CISIM'07), 2007
The standard digital signature scheme can be easily subject to key exposure problem In order to overcome this problem; a feasible and effective approach is employed by key-evolving signature scheme. In this paper, we study key-evolving signature within the UC framework and propose an appropriate ideal functionality that captures the basic security ...
Jin Zhou   +3 more
openaire   +2 more sources

Integrating Threshold Opening With Threshold Issuance of Anonymous Credentials Over Blockchains for a Multi-Certifier Communication Model

open access: yesIEEE Access, 2022
Authentication while maintaining anonymity when availing a service over the internet is a significant privacy challenge. Anonymous credentials (AC) address this by providing the user with a credential issued by a trusted entity that convinces the service
Adeeba Naaz   +3 more
doaj   +1 more source

Universal Composability is Robust Compilation [PDF]

open access: yes, 2022
This paper discusses the relationship between two frameworks: universal composability (UC) and robust compilation (RC). In cryptography, UC is a framework for the specification and analysis of cryptographic protocols with a strong compositionality ...
Wahby, Riad S.   +2 more
core   +1 more source

Universally Composable Undeniable Signature [PDF]

open access: yes, 2008
How to define the security of undeniable signature schemes is a challenging task. This paper presents two security definitions of undeniable signature schemes which are more useful or natural than the existing definition. It then proves their equivalence. We first define the UC-security, where UC means universal composability.
Kaoru Kurosawa, Jun Furukawa 0001
openaire   +3 more sources

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