Hash-based message authentication codes are an extremely simple yet hugely effective construction for producing keyed message digests using shared secrets. HMACs have seen widespread use as ad-hoc digital signatures in many Internet applications. While messages signed with an HMAC are secure against sender impersonation and tampering in transit, if used alone they are susceptible to replay atta...

This paper suggests a message authentication scheme, which can be efficiently used for secure digital signature creation. The algorithm used here is an adjusted union of the concepts which underlie projective geometry and group structure on circles. The authentication is done through a key, which iterates over the complete message string to produce the signature. The iteration is not only based...

Vehicular ad hoc networks (VANETs) adopt the Expedite Message Authentication Protocol (EMAP) and Certificate Revocation Lists (CRLs) for their security. In any EMAP system, the authentication of a received message is performed by checking if the certificate of the sender is included in the current CRL, and verifying the authenticity of the certificate and signature of the sender. In this paper,...

Multisender authentication code was firstly constructed by Gilbert et al. in [1] in 1974.Multisender authentication system refers to a group of senders that cooperatively send amessage to the receiver, and then the receiver should be able to ascertain that the message is authentic. About this case, many scholars had also much researches and had made great contributions to multisender authentica...

Brickell, Simmons and others have discussed doubly perfect authentication systems in which an opponent's chance of deceiving the receiver is a minimum for a given number of encoding rules. Brickell has shown that in some instances to achieve this minimum the system needs to have splitting. Such a system uses a larger message space. Motivated by Brickell's ideas we consider authentication system...

In Vehicular ad hoc network (VANET) vehicles communicates through wireless channels, so there will be variety of attacks. To secure vehicular ad hoc network, deployed Public Key Infrastructure (PKI), and to use Certificate Revocation List (CRL) for managing the revoked certificates. The authentication of received message can be performed by first check if the sender’s certificate is in current ...

A deniable authentication protocol allows a sender to transfer an authenticated message to a receiver in such a way that the receiver cannot prove to a third party about the source of the message. In recent years, many deniable authentication protocols have been proposed. In 2005, Lu et al. proposed a secure and non-interactive deniable authentication protocol based on factoring. Although Lu et...

The essence of authentication is the transmission of unique and irreproducible information. In this paper, the authentication becomes a problem of the secure transmission of the secret key over noisy channels. A general analysis and design framework for message authentication is presented based on the results of Wyner’s wiretap channel. Impersonation and substitution attacks are primarily inves...

Vehicular ad-hoc networks (VANETs) have been emerging due to the recent technologies in wireless and network communications. The most fundamental part in VANETs is to enable message authentications between vehicles and roadside units. Message authentication using proxy vehicles has been proposed to reduce the computational overhead of roadside units significantly. In this type of message authen...

By interpreting message authentication as a hypothesis testing problem, this paper provides a generalized treatment of information-theoretic lower bounds on an opponent's probability of cheating in one-way message authentication. We consider the authentication of an arbitrary sequence of messages, using the same secret key shared between sender and receiver. The adversary tries to deceive the r...