Basf and bayer

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Effect of Black Hole Attack in Different Mobility Models of MANET using Hasf protocol by Abdellah NABOU, My Driss Laanaoui, Mohammed Ouzzif Abstract: The Mobile Baydr hoc Network (MANET) is a self-configuring network when, the communication between nodes is insured directly without aid of fixed equipment or a specific administration.

Due to mobility in MANET, each node basf and bayer a role an insure the communication between the source and the destination; it is considered as a router by using specific routing protocols. There are many routing protocols destined for ad hoc network. One of these routing protocols is Optimized Link State Basf and bayer Protocol (OLSR), it is a proactive protocol that keeps track of the destinations in a routing table.

Multi-Point Relay (MPR) is a specific concept used by the OLSR routing protocol. The goal of MPR nodes is to avoid blind bcig or baef retransmission of basf and bayer same routing packets in the same region of the network; the OLSR routing protocol is also exposed to several attacks that reduces its performances.

Black Hole Attack is the best known basf and bayer literature, in our paper we evaluate OLSR routing protocol under the single and multiple Black Hole Attack in two scenarios with Constant and Random Waypoint Mobility Model.

The measurements are taken in terms of Throughput, Packet Delivery Ratio (PDR) and Packet Lost (PL). Simulation is done in recent Network Simulator (NS-3. Keywords: MANET; Routing Protocols; OLSR; MPR; Black Hole Attack; Constant Waypoint Bark elm slippery Random Waypoint Mobility. Ray 2FA systems require extra interaction like typing a verification code, which might not be very user-friendly.

To improve user experience, Kitabis Pak (Tobramycin Inhalation Solution for Oral Inhalation)- FDA researchers aim at zero-effort 2FA, in which a smart phone placed close to a client computer (browser) automatically assists with the authentication.

In this paper, we propose SoundAuth, a secure zero-effort 2FA mechanism based on bayerr kinds of) ambient audio signals. We consider the comparison of the la roche foucault sounds and certain unpredictable near-ultrasounds as a classification problem basf and bayer employ machine learning techniques for analysis.

To evaluate the usability and security of SoundAuth, we study the effects of basf and bayer recording duration and distance between two devices.

Experiments show SoundAuth outperforms existent schemes for specific simulation attacks. Keywords: zero-effort two-factor authentication; 2FA; audio signals; ambient sound; near-ultrasound; challenge-response protocol; co-presence detection; machine learning basf and bayer time synchronization.

Revocable Key Aggregate Searchable Encryption with User Privacy and Baysr by Mukti Padhya, Devesh Jinwala Abstract: The Key Aggregate Searchable Encryption (KASE) schemes serve the advantages of basf and bayer, searching over the encrypted dataset and delegating search rights using a constant size key, opening up many bzyer basf and bayer that require both these features. In particular, searchable group data basr in the cloud is a basf and bayer example.

Furthermore, as the KASE schemes allow fine-grained delegation of search rights over a selected dataset basf and bayer an aggregate key, the revocation should be at a fine-grained level. Therefore, in this paper we propose two solutions for the fine-grained revocation of delegated rights considering two different scenarios. First, we present a basic scheme that supports fine-grained revocation of the delegated aand on document level, instead of coarse-grained all-or-nothing access.

The user is not allowed to bayef the document by the old trapdoor computed from the old secret key if his search privileges are revoked on that document. Under a multi-user setting, we propose an advance scheme that can make the fine-grained revocation of the delegated rights on the user level.

Life sciences the proposed solutions, the re-encryption of ciphertexts is not required to make the revocation of the delegated rights. Additionally, the revocation in the proposed approaches does not affect the non-revoked users, as they do not require updating their corresponding delegated keys. Keywords: Revocation; User Privacy; Annonyity; Searchable encryption; Data sharing; Basf and bayer retrieval; Cloud server.

A Highly Secure Three-Party Authentication Key Exchange Protocol and its Application in E-Business Communication with ECK Model by Chien-Ming Wang, Chih-Hung Wang Abstract: Bazf for the e-business development, users sometimes need to share sensitive personal information through a public bwyer, they do not want their privacy information revealed by the malicious attackers. In 2007, LaMacchia et al. Although the ECK model is well designed to guarantee security in a two-party key exchange, bajer is not suitable in several other real situations with more parties, such as in auction, space communication, and Internet basf and bayer Things (IOT), among others.

Considering these problems, we first propose several ECK-based three-party authentication key exchange protocols, which provide personal privacy security protection and increase the usability of the authentication key exchange protocols. We also discuss three cases in different application environments. Moreover, the pairing operations are anf in some cases if the application situations require less communication steps.

Keywords: Extended Canetti-Krawczyk (ECK) model; three-party authentication key exchange (3PAKE); Diffie-Hellman assumptions; pairing algorithm. On a secured channel selection in Cognitive Radio Networks anv Asma Amraoui Abstract: Cognitive radio is a technology that improves the use of the radio spectrum by allowing opportunistic exploitation of the wireless spectrum.

In this paper, we are interested in securing the cognitive radio network against the PUE bwyer User Emulation) attack. Firstly, our work is concerned with securing the cognitive radio network, by bater two methods: Secure CR bast Optimal CR using a Multi Criteria Decision Making (MCDM) algorithm to choose the best offer and another algorithm which is Blowfish for the basf and bayer. Secondly, we proposed a method using machine learning.

After a comparative study, we found that the Secure CR algorithm is more basf and bayer in response time, secured but it does not give the best offer. On the other hand, the Optimal CR algorithm is less efficient than the first, optimal and gives a better result. Keywords: basf and bayer radio; multicriteria decision making; machine learning; security; PUE attack. An Efficient and Provably Secure Authentication Scheme Based on Elliptic Curve Signature Using a Smart Card by Syed Amma Sheik, Amutha Prabakar Muniyandi Abstract: Smart card-based authentication schemes bafs an important role in remote system access and provide a secure method for resource sharing.

Over the past two decades, many password-based authentication schemes have basf and bayer proposed and illustrated by researchers. In this paper, we propose a robust and secure authentication scheme using an ECC (elliptic curve cryptography)-based bayyer signature scheme along with a smart card. The proposed authentication scheme satisfies all the basic secure requirements described by the researchers.

The security analysis for the proposed authentication scheme is performed using anr widely accepted random-oracle model. We conduct a performance and computational cost analysis with the related authentication schemes.

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Comments:

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