EMAP: Expedite Message Authentication Protocol
for Vehicular Ad Hoc Networks

EMAP: Expedite Message Authentication protoc...
Introduction:
A taxonomy of wireless networks

EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Network...
Ad Hoc Networks
• Non-infrastructure
• Fixed and Mobile Nodes
• Special Classes of Ad Hoc Networks
 Vehicular Ad Hoc Netw...
What is a VANET
(Vehicular Ad hoc NETwork)?
Roadside
base station

Emergency
event

Inter-vehicle
communications
Vehicle-t...
HMAC
 HMAC stands for Hash-based Message Authentication

Code
 It used to verify data integrity and authenticity of a
me...
Terms
 Some terms to help out with the next slide:
 H = hash function
 K = key
 M = message
 || = concatenation
 XOR...
A visual look
Objective:
 The main aim of this project is to propose

EMAP(Expedite Message Authentication Protocol)
for vehicular Ad h...
Existing System:
 In existing system, VANETs use the Public Key

Infrastructure (PKI) and Certificate Revocation Lists
(CR...
Demerits:
 A variety of attacks such as
 Injecting false information,
 Modifying and
 Replaying the disseminated messa...
Proposed System:
 Expedite Message Authentication Protocol (EMAP)

for VANETs, replaces the time-consuming CRL
checking p...
Merits:
 Decreased message loss ratio

 EMAP is secure and efficient.
 The number of messages that can be verified usin...
Modules:
 Vehicle-to-Vehicle (V2V) and Vehicle-toInfrastructure

 Expedite Message Authentication Protocol

EMAP: Expedi...
1. Vehicle-to-Vehicle (V2V) and Vehicle-toInfrastructure

 OBU’s can communicate either with other OBU’s

through V2V com...
2. Expedite Message Authentication Protocol
In this Module,
 A Trusted Authority (TA): provides anonymous
certificate and ...
System Requirements:
 Hardware Requirements:

System
Hard Disk
Floppy Drive
Monitor
Mouse
Ram

: Pentium IV 2.4 GHz.
: 40...
EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
Thank you

EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc
Networks
Upcoming SlideShare
Loading in …5
×

Emap expedite message authentication protocol for vehicular ad hoc networks

2,065 views

Published on

Emap expedite message authentication protocol for vehicular ad hoc networks slides

Published in: Education
0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,065
On SlideShare
0
From Embeds
0
Number of Embeds
7
Actions
Shares
0
Downloads
133
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Emap expedite message authentication protocol for vehicular ad hoc networks

  1. 1. EMAP: Expedite Message Authentication Protocol for Vehicular Ad Hoc Networks EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  2. 2. Introduction: A taxonomy of wireless networks EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  3. 3. Ad Hoc Networks • Non-infrastructure • Fixed and Mobile Nodes • Special Classes of Ad Hoc Networks  Vehicular Ad Hoc Networks  Wireless Mesh Networks  Wireless Sensor Networks  Bluetooth Scatternets… EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  4. 4. What is a VANET (Vehicular Ad hoc NETwork)? Roadside base station Emergency event Inter-vehicle communications Vehicle-to-roadside communications EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  5. 5. HMAC  HMAC stands for Hash-based Message Authentication Code  It used to verify data integrity and authenticity of a message  It uses current cryptographic hash functions with a secret key (SHA )
  6. 6. Terms  Some terms to help out with the next slide:  H = hash function  K = key  M = message  || = concatenation  XOR = XOR  o_key_pad = outer padding (one block long 0x36)  i_key_pad = inner padding (one block long 0x5c)  In short: HMAC(k,m) = H((k XOR o_key_pad) || H((k XOR i_key_pad) || m))
  7. 7. A visual look
  8. 8. 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. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  9. 9. Existing System:  In existing system, VANETs use the Public Key Infrastructure (PKI) and Certificate Revocation Lists (CRLs) in which the authentication of a received message is performed by checking if the Certificate of the sender is included in the current CRL. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  10. 10. Demerits:  A variety of attacks such as  Injecting false information,  Modifying and  Replaying the disseminated messages can be easily launched.  Delay in checking the revocation status of a certificate. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  11. 11. Proposed System:  Expedite Message Authentication Protocol (EMAP) for VANETs, replaces the time-consuming CRL checking process by an efficient revocation checking process which uses a keyed Hash Message Authentication Code (HMAC) and novel probabilistic key distribution. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  12. 12. Merits:  Decreased message loss ratio  EMAP is secure and efficient.  The number of messages that can be verified using EMAP within 300msec is greater than that using linear and binary CRL checking by 88.7 and 48.38 percent respectively EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  13. 13. Modules:  Vehicle-to-Vehicle (V2V) and Vehicle-toInfrastructure  Expedite Message Authentication Protocol EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  14. 14. 1. Vehicle-to-Vehicle (V2V) and Vehicle-toInfrastructure  OBU’s can communicate either with other OBU’s through V2V communications or with RSU’s through V2I communications. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  15. 15. 2. Expedite Message Authentication Protocol In this Module,  A Trusted Authority (TA): provides anonymous certificate and Distributing secret keys to all OBUs in the network.  Roadside units (RSUs): RSUs are fixed units distributed all over the network.  On-Board Units (OBUs): OBUs are embedded in vehicles. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  16. 16. System Requirements:  Hardware Requirements: System Hard Disk Floppy Drive Monitor Mouse Ram : Pentium IV 2.4 GHz. : 40 GB. : 1.44 Mb. : 15 VGA Color. : Logitech. : 512 Mb.  Software Requirements: Operating system Coding Language Front End : Windows 7 Ultimate (32-bit) : ASP.Net with C#. : Visual Studio 2010 Professional EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  17. 17. EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks
  18. 18. Thank you EMAP: Expedite Message Authentication protocol for Vehicular Ad Hoc Networks

×