International Journal of Computer Networks and Applications

M. Selvi ¹, B. Ramakrishnan ²

Affiliations
1 S.T. Hindu College, Nagercoil-2, IN
2 Department of Computer Science and Research Centre, S.T. Hindu College, Nagercoil-2, IN

Abstract

All the way through cooperative behaviour of the vehicular nodes information dissemination in VANETs occurs. Vital information like traffic jam, emergency brake procedures, road conditions, accident warnings, bad weather conditions, etc are messages transmitted in vehicular network. Misbehaviours and false hindering is a serious issue in VANET if any vehicles maliciously send messages. Deviation from the average behaviour of other vehicular nodes in the Consecutively to make VANET a secure network, detection of misbehaviors and the malicious vehicular nodes concerned in such misconducts is tremendously imperative. In this paper we have proposed a message broadcasting and message priority assignment in vehicular networks to resolve this problem. Initially the messages are prioritized using SMTP metric. we are using the three levels of priority's those are emergency, general request and entertainment request and then finally secured information transaction via., optimal blowfish algorithm based signcryption technique. The performance of the proposed algorithm is analyzed with existing techniques.

Keywords

VANET, Data Dissemination, Sybil Attack, DOS, Signcryption, Blowfish, Cuckoo Search.

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B. Ramakrishnan ¹, S. R. Sreedivya ², M. Selvi ²

Affiliations
1 Department of Computer Science and Research Centre, S.T. Hindu College, Nagercoil, Tamilnadu, IN
2 S.T. Hindu College, Nagercoil, Tamilnadu, IN

Abstract

A wide range of protocols are used to achieve secured message broadcasting in VANET. Most commonly used protocols are topology based routing and geography based routing protocols. In order to overcome the issues of these 2 protocols, we proposed a design of Adaptive routing protocol based on Cuckoo search algorithm (ARP-CS). The adaptive protocol combines the features of both topology routing and geographic routing protocols which ensures the secured transmission of data with less delay and high packet delivery ratio. ARP-CS provides reliable and secure routes between source and destination node with optimal distance and low routing overheads. ARP-CS uses a local stochastic broadcasting to find routes which reduces the network congestion thereby improving the packet delivery ratio.

Keywords

VANET, AODV, GPRS, Routing Protocol, Cuckoo Search.

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R. Bhagavath Nishanth ¹, B. Ramakrishnan ², M. Selvi ³

Affiliations
1 Velammal Engineering College, Chennai-66, IN
2 Department of Computer Science and Research Centre, S.T. Hindu College, Nagercoil, IN
3 S.T. Hindu College, Nagercoil, IN

Abstract

In a Cryptographic primordial, the functions of the digital signature and the public key encryption are concurrently carried out. To safely communicate incredibly large messages, the cryptographic primordial known as the signcryption is effectively employed. Though a lion's share of the public key based mechanism are appropriate for miniature messages, the hybrid encryption (KEM-DEM) offers a proficient and realistic method. In this document, we are cheered to launch an improved signcryption method, which takes cues from the KEM and DEM approaches. The KEM algorithm employs the KDF approach to summarize the symmetric key. The DEM algorithm makes use of the Elliptic curve cryptography technique to encrypt the original message. With an eye on safety aspects, we have testes three attacks and we are cheered to state that the attackers have failed miserably in locating the safety traits of our improved signcryption technique.

Keywords

Cryptographic, Signcryption, KEM, DEM, KDF.

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