Results 31 to 40 of about 5,296 (299)

Differential Attack on Message Authentication Codes [PDF]

open access: yes, 1994
We discuss the security of Message Authentication Code (MAC) schemes from the viewpoint of differential attack, and propose an attack that is effective against DES-MAC and FEAL-MAC. The attack derives the secret authentication key in the chosen plaintext scenario.
Kazuo Ohta, Mitsuru Matsui
openaire   +1 more source

Digital signatures over HMAC entangled chains

open access: yesEngineering Science and Technology, an International Journal, 2022
In this work we present a new digital signature method based on hash chains and the hash message authentication code (HMAC). Unlike Blockchain technology, our approach establishes that the database of transactions is distributed among users, so each one ...
Luis Adrián Lizama-Pérez
doaj   +1 more source

Novel Hardware Implementation of the Cipher Message Authentication Code

open access: yesJournal of Computer Systems, Networks, and Communications, 2008
A new algorithm for producing message authenticating codes (MACs) was recently proposed by NIST. The MAC protects both a message's integrity—by ensuring that a different MAC will be produced if the message has changed—as well as its authenticity because ...
H. E. Michail   +4 more
doaj   +1 more source

On authentication codes based on orthogonal tables

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
The authentication codes resistant to messages imitation and substitution are investigated. The case when the probabilities of imitation and substitution reach the lower limits has been highlighted. Such authentication codes are called optimal.
Sergey M Ratseev, Olga I Cherevatenko
doaj   +1 more source

Quantum-Secure Message Authentication Codes [PDF]

open access: yes, 2013
We construct the first Message Authentication Codes (MACs) that are existentially unforgeable against a quantum chosen message attack. These chosen message attacks model a quantum adversary’s ability to obtain the MAC on a superposition of messages of its choice.
Dan Boneh, Mark Zhandry
openaire   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

RFID Path Authentication, Revisited [PDF]

open access: yes, 2014
In an RFID-enabled supply chain, where items are outfitted with RFID tags, path authentication based on tag enables the destination checkpoints to validate the route that a tag has already accessed.
Atsuko Miyaji   +3 more
core   +1 more source

EliMAC: Speeding Up LightMAC by around 20%

open access: yesIACR Transactions on Symmetric Cryptology, 2023
Universal hash functions play a prominent role in the design of message authentication codes and the like. Whereas it is known how to build highly efficient sequential universal hash functions, parallel non-algebraic universal hash function designs are ...
Christoph Dobraunig   +2 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

A Large Term Rewrite System Modelling a Pioneering Cryptographic Algorithm [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
We present a term rewrite system that formally models the Message Authenticator Algorithm (MAA), which was one of the first cryptographic functions for computing a Message Authentication Code and was adopted, between 1987 and 2001, in international ...
Hubert Garavel, Lina Marsso
doaj   +1 more source

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