Results 11 to 20 of about 4,309 (262)

Highly Secure Nonce-based MACs from the Sum of Tweakable Block Ciphers

open access: yesIACR Transactions on Symmetric Cryptology, 2020
Tweakable block ciphers (TBCs) have proven highly useful to boost the security guarantees of authentication schemes. In 2017, Cogliati et al. proposed two MACs combining TBC and universal hash functions: a nonce-based MAC called NaT and a deterministic ...
Wonseok Choi   +6 more
doaj   +3 more sources

A New Construction of Multisender Authentication Codes from Polynomials over Finite Fields

open access: yesJournal of Applied Mathematics, 2013
Multisender authentication codes allow a group of senders to construct an authenticated message for a receiver such that the receiver can verify the authenticity of the received message.
Xiuli Wang
doaj   +1 more source

A New Construction of Multisender Authentication Codes from Pseudosymplectic Geometry over Finite Fields

open access: yesJournal of Applied Mathematics, 2013
Multisender authentication codes allow a group of senders to construct an authenticated message for one receiver such that the receiver can verify authenticity of the received message.
Xiuli Wang
doaj   +1 more source

A Study of Blind Message Authentication Codes [PDF]

open access: yesIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2007
Blind signatures allow a signer to digitally sign a document without being able to glean any information about the document. In this paper, we investigate the symmetric analog of blind signatures, namely blind message authentication codes (blind MACs). One may hope to get the same efficiency gain from blind MAC constructions as is usually obtained when
Chanathip Namprempre   +2 more
openaire   +2 more sources

Cryptanalysis of message authentication codes [PDF]

open access: yes, 1998
This paper gives a survey of attacks on Message Authentication Codes (MACS). First it defines the required security properties. Next it describes generic forgery and key recovery attacks on MACS. Subsequently an overview is presented of most MAC constructions and on attacks on these algorithms.
openaire   +3 more sources

A TWOOA construction for multi-receiver multi-message authentication codes

open access: yesJournal of Mathematical Cryptology, 2008
A (k, n; w) multi-receiver multi-message authentication code allows a transmitter to broadcast up to w − 1 distinct authenticated messages to n receivers in such a way that (1) not only an opponent but also any up to k − 1 receivers cannot cheat any ...
Fuji-Hara Ryoh   +3 more
doaj   +1 more source

CoP: An Ultra-Lightweight Secure Network Coding Scheme via Last Forwarder’s Proof

open access: yesTsinghua Science and Technology, 2012
Network coding can improve network efficiency by extending copy-and-forward paradigm to code-andforward paradigm. It thus imposes a security problem called pollution attack that some network coding or forwarding nodes may intentionally fabricate, modify,
Wei Ren, Linchen Yu, Liangli Ma
doaj   +1 more source

Comparative Study of Eight Formal Specifications of the Message Authenticator Algorithm [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
The Message Authenticator Algorithm (MAA) is one of the first cryptographic functions for computing a Message Authentication Code. Between 1987 and 2001, the MAA was adopted in international standards (ISO 8730 and ISO 8731-2) to ensure the authenticity ...
Hubert Garavel, Lina Marsso
doaj   +1 more source

MARAS: Mutual Authentication and Role-Based Authorization Scheme for Lightweight Internet of Things Applications

open access: yesSensors, 2023
The Internet of things (IoT) accommodates lightweight sensor/actuator devices with limited resources; hence, more efficient methods for known challenges are sought after. Message queue telemetry transport (MQTT) is a publish/subscribe-based protocol that
Özlem Şeker   +2 more
doaj   +1 more source

Implementasi Sistem Otentikasi Dokumen Berbasis Quick Response (QR) Code dan Digital Signature

open access: yesJurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2021
The authenticity and integrity of documents are essential in data exchange and communication. Digital documents must be verifiable for their authenticity and integrity by all parties that use the documents.
Antika Lorien, Theophilus Wellem
doaj   +1 more source

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