EMAP: Expedite Message Authentication Protocol for Vehicular Ad Hoc Networks
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EMAP: Expedite Message Authentication Protocol for Vehicular Ad Hoc Networks

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  • sir i need ur help. i do that project in my M.E(mini project). so pls send that project coding and details abt the project send my mail id sir..
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EMAP: Expedite Message Authentication Protocol for Vehicular Ad Hoc Networks EMAP: Expedite Message Authentication Protocol for Vehicular Ad Hoc Networks Presentation Transcript

  • EMAP: Expedite Message Authentication protocol For Vehicular Ad Hoc Networks Guided by… Presented by…. Mis: P. IRIN SAJI M.E., N.PONMUDISELVN AP/CSE II yr ME/CSE DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING AKSHEYAA COLLEGE OF ENGINEERING5
  • OBJECTIVE  The main aim of this project is to propose EMAP (Expedite Message Authentication protocol) for vehicular Ad hoc Networks, which replaces the time-consuming CRL(Certificate Revocation List) checking process by an efficient revocation checking process.
  • ABSTRACT • In vehicular networks, moving vehicles are enabled to communicate with each other via inter vehicle communications as well as with road-side units (RSUs) in vicinity via roadside-to-vehicle communications. • To ensure reliable operation of VANETs and increase the amount of authentic information gained from the received messages, each OBU should be able to check the revocation status of all the received certificates in a timely manner. View slide
  • CONT…. • Most of the existing works overlooked the authentication delay resulting from checking the CRL for each received certificate. • It introduce an expedite message authentication protocol (EMAP) which replaces the CRL checking process by an efficient revocation checking process using a fast and secure HMAC function and novel key sharing scheme employing probabilistic random key distribution which allows an OBU to update its compromised keys even if it previously missed some revocation messages. View slide
  • EXISTING SYSTEM • In VANETs, the primary security requirements are identified as entity authentication, message integrity, non-repudiation, and privacy preservation. • A well-recognized solution to secure VANETs is to deploy Public Key Infrastructure (PKI), and to use Certificate Revocation Lists (CRLs) for managing the revoked certificates. • In PKI, each entity in the network holds an authentic certificate, and every message should be digitally signed before its transmission
  • DEMERITS  Variety of attacks such as injecting false information  Modifying and replaying the disseminated messages can be easily launched.  A security attack on legitimate users.  The scale of VANET is very large.
  • Cont… • A CRL, usually issued by a Trusted Authority (TA), is a list containing all the revoked certificates. • In a PKI system, the authentication of any message is performed by first checking if the sender’s certificate is included in the current CRL, • Since the CRL size is expected to be very large, the delay of checking the revocation status of a certificate included in a received message is expected to be long.
  • LITERATURE SURVEY Paper1: Eviction of Misbehaving and Faulty Nodes in Vehicular Networks in the year of 2007 by M. Raya, P. Papadimitratos, I. Aad, D. Jungels, and J.-P. Hubaux.  Misbehaving or faulty network node to be detected and removed  Revocation using Compressed Certificate Revocation Lists (RC2RL) is used  LEAVE protocol is used  Event data recorders (EDRs), embeded in vehicle Merits security is a critical factor and a significant challenge to be met.  eviction is efficiently feasible and achieves a sufficient level of robustness. 
  • Cont… Demerits  There is a slight decrease in performance at very high densities  The average speed is much higher, and performance decreases slightly for very high speeds  Only consider for revocation  Delay will be occure
  • LITERATURE SURVEY Paper 2:TACKing Together Efficient Authentication, Revocation, and Privacy in VANETs-2009 By A. Studer, E. Shi, F. Bai, and A. Perrig,  It consisting of a central trusted authority and regional authorities (RAs) distributed all over the network  the trusted authority acts as the group manager and the vehicles act as the group members
  • CONT…  Merits  Efficiently prevents eavesdroppers from linking a vehicle’s different keys  Identify the valid vehicle  Less overhead for vehicle to vehicle communication Disadvantage  TACK not suitable for the safety applications in VANETs as the WAVE standard  This certificate is valid only within the coverage range of the RA
  • LITERATURE SURVEY Paper 3 K.P. Laberteaux, J.J. Haas, and Y. Hu, “Security CertificateRevocation List Distribution for VANET,” Proc. Fifth ACM int’lWorkshop VehiculAr InterNETworking, pp. 88-89, 2008. • • • In a VANET, a certificate authority issues keys and certificates to vehicles. Each vehicle distributes these certificates to other VANET participants Every vehicle must sign the certificate for security purpose Merits • epidemic distribution of certificate revocation lists which is quick and efficientEfficiently distribute the certificate • Certificate authority check the certificate status  Car-to-car epidemic distribution of certificate revocation lists
  • CONT…. Demerits • Only employ the road side unit Distribution point • Certificate Revocation List is consisting large certificate • Their is no Timestamp
  • LITERATURE SURVEY Paper 4:An Efficient Pseudonymous Authentication Scheme with Strong Privacy Preservation for Vehicular Communications in the year of 2010 by Yipin Sun, Student Member, IEEE, Rongxing Lu, Student Member, IEEE, Xiaodong Lin, Member, IEEE  PASS supports Roadside Unit aided distributed certificate service  PASS allows the vehicles to update certificates on road,  It provide privacy for certificate
  • Cont… Merits • Optimize revocation overhead • Reducing certificate overhead Demerits • Can not trace legitimate vehicle • Can’t provide location privacy
  • LITERATURE SURVEY  Paper5:Pseudonym Changing at Social Spots: An Effective Strategy for Location Privacy in VANETs in the year of 2012 by Rongxing Lu, Member, IEEE, Xiaodong Lin, Member, IEEE, Tom H. Luan,Xiaohui Liang, Student Member, IEEE, and Xue min (Sherman) Shen, Fellow, IEEE  As a prime target of Quality of Privacy (QoP) in ks (VANETs),  If the pseudonyms are changed in an improper time and location, such solution is invalid
  • Cont……. Advantage • It present an effective pseudonym changing at social spot Provable location privacy Demerits • It is not possible to track the vehicle exactly
  • PROPOSED SYSTEM  Expedite Message authentication protocol (EMAP) which replaces the CRL checking process by an efficient revocation checking process using a fast and secure HMAC function. EMAP is suitable not only for VANETs but also for any network employing a PKI system.  To the best of our knowledge, this is the first solution to reduce the authentication delay resulting from checking the CRL in VANETs.
  • MERITS  EMAP has the lowest computation complexity compared with the CRL checking processes employing linear and binary search algorithms.  The number of messages that can be verified using EMAP within 300 msec is greater than that using linear and binary CRL checking by 88.7 and 48.38 percent, respectively.  The proposed EMAP in authentication reduces the end-to-end delay compared with that using either the linear or the binary CRL checking process.
  • MODULES VANET Design  Message Authentication  Revocation Process 
  • Development of VANET architecture  The Vehicular Adhoc Network model consists of Trusted Authority (TA), Roadside Units (RSUs), On-Board Units (OBUs).  Trusted Authority, which is responsible for providing certificates and distributing secret keys to all OBUs in the network.  Roadside Units which are fixed Units distributed all over the network.  On-Board Units, which are embedded in vehicles. OBUs can communicate either with other OBUs through V2V communications or with RSUs through V2I communications
  • Message Authentication  If an OBU want to communicate other OBU means it send an encrypted message with a HMAC code using HMAC algorithm, it generate by using the sender id and common secret key which knows all the unrevoked OBUs.  The receiver OBU also generates the HMAC code by using common secret key.  Whether the HMAC code is same means the receiver knows the sender OBU is an authenticated OBU otherwise not process the message
  • USE CASE DIAGRAM :
  • SEQUENCE DIAGRAM:
  • COLLABORATION DIAGRAM
  • MAIN PAGE
  • TRUSTED AUTHORITY
  • CREATION OF ROADSIDE UNIT
  • ROADSIDE UNIT
  • ROADSIDE UNIT INPUT
  • ROADSIDE UNIT
  • ONBOARD UNIT INPUT
  • ONBOARD UNIT
  • ONBOARD UNIT INPUT
  • ONBOARD UNIT
  • ONBOARD UNIT
  • ONBOARD UNIT INPUT
  • ONBOARD UNIT
  • ONBOARD UNIT INPUT
  • ONBOARD UNIT
  • ONBOARD UNIT INPUT
  • ONBOARD UNIT
  • ONBOARD UNIT INPUT
  • ONBOARD UNIT
  • THANK YOU