Using MD5 AND RSA Algorithm Improve Security in ...

ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

Using MD5 AND RSA Algorithm Improve Security in MANETs Systems 1

Karamjeet Singh, 2Chakshu Goel M-Tech Scholar, S.B.S State Technical Campus, Ferozepur, Punjab 2 Asst. Professor, S.B.S State technical Campus Ferozepur,Punjab 1 [email protected], [email protected] 1

Abstract:- In this paper explain ad hoc and security mechanism.ad hoc network is a collection of various mobile nodes that dynamically form a network and are used for communicating with each other without the any network infrastructure or any centralized node. The main focus of this work is to secure the data transmission in mobile ad hoc network and this is possible by using hybrid approach. This hybrid approach is a combination of MD5 & RSA encryption algorithms which helps to protect data from the various attacks in the MANETs network. In this work, a 16-bit key is used which made it more secure. No one can decrypt the encrypted data without this 16-bit key.

II. Mobile Ad Hoc Network An ad-hoc network is a collection of various wireless mobile hosts Mobile Ad-hoc networks are self-configuring as well as selforganizing multi-hop wireless networks. Nodes communicating to physical media; they transmit and get signals [7]. If the destination node is not inside range of the source node, the source node help to intermediate nodes in order to communicate with the other node. Fig1 represent the Mobile ad-hoc network. The node transmit a message to another node that is out of range, the cooperation of other nodes in the network is required; it is represented by multi-hop communication. Therefore, each node at the same time must act both as a host as well as router.

Keyword:- Ad-Hoc network, MANETs, decrypt I. Introduction: In recent years, much interest has been involved in the design of Mobile Ad-hoc Network (MANET) technologies. Mobile adhoc networks are characterized by their selfconfiguration, open peer-to-peer network architecture. Existing security solutions for wired or wireless networks with infrastructure cannot be directly applied to MANETs. Due to different factors like including absence of already established trust

Fig. 1 Mobile Ad hoc Network

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ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

energy. For these nodes, the very important for optimization may be energy conservation. 3) Limited physical security: Mobile wireless networks are generally prone to physical security threats. The increased possibility attacks should be carefully considered secure communication [3], an important effect of any networking environment, is an important significant challenge in ad hoc networks. The communication in mobile ad hoc networks divide into two phases, first is route discovery and second is data transmission. And both Phases are vulnerable to a variety of attacks, Key management [4] is a important part of any secure communication structure. Most secure communication protocols rely on a secure and efficient key management system.

Mobile Ad-Hoc Networks (MANETs) are used to communication infrastructure in the Department of Defense’s vision Network Centric Warfare [1]. Global Information Grid (GIG), and MANETs can serve in Warfighter Information Network-Tactical (Win-T) to give command, communications, intelligence and reconnaissance (C4ISR) support [2]. Mobile Ad-Hoc Network is an autonomous system, where nodes are connected with each other with wireless links [7]. There is no restriction on the nodes to join or leave the network, so the nodes join or leave freely. Mobile Ad-Hoc network topology changes rapidly because the nodes move freely. This property of the nodes makes the mobile AdHoc networks unpredictable from the point of view of scalability and topology.

IV. Various Types of Mobile Ad hoc Network 1. Vehicular Ad-Hoc Networks (VANET’s) 2. Intelligent Vehicular Ad-Hoc Networks (In VANET’s) 3. Internet Based Mobile Ad-Hoc Networks (I MANET’s) Vehicular Ad-Hoc Networks (VANET’s) VANET is a type of Mobile Ad-Hoc network where vehicles are equipped with wireless..

Fig. 2 Mobile Ad hoc Network The communication in mobile ad hoc networks comprises two phases, the route discovery and the data transmission. Route discovery discover the routes and data transmission used for transmit the data to different nodes. III. MANETs have several characteristics:

Intelligent Vehicular Ad-Hoc Networks (InVANET’s) Vehicles that form Mobile Ad-Hoc Network for communication using WiMax IEEE802.16 and WiFi802.11. The aim of VANET’ avoid vehicle collision so as to keep passengers as safe. Internet Based Mobile Ad-Hoc Networks (iMANET’s) These are used for linking up the mobile nodes and fixed internet gateways. In these networks the various routing algorithms does not apply[2].

salient

1) Dynamic topologies: Nodes are freely to move;thus, the network topology--which is multihop--may change randomly without any times, it may consist of both bidirectional and unidirectional links [8]. 2) Energy-constrained operation: Some or all of the nodes in a MANET may rely their

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ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

The figure should make this process a bit more clear

Related Work:1) DES 2) PGP

PGP:-PGP algorithm the key pair is generated. One key of the pair is the Private key which should always be kept safe and never given to anyone. The other key is the public key which should be given to as many people as possible.

V. Introduction DES DES developed by IBM company. The US National Security Agency (NSA) create several modifications, after which it was developed as Federal Information Processing Standard (FIPS) standard 46-3 and ANSI standard X3.92.

VI. Some Important PGP terms 1) Key:-PGP key is a key pair, private key and a public key. The term “PGP key” refers to the public key.

Working DES:-Encryption message takes place in 16 stages. With the help of input key, sixteen 48 bit keys are created, one for every round. In case of every round, these round called S-boxes are used in DES. These Sboxes are fixed in the specification of the standard [9]. Recently it has been discovered that these S-boxes, against an attack called differential cryptanalysis. The message is divided into two parts. The right half is expanded from 32 to 48 bits using table. The result is added with the sub key for that round using the XOR operation [6]. Using the boxes the 48 resulting bits are then change again to 32 bits, the shuffled right half is now combined with the left half used by the XOR operation. In the further round, this combination is used as the new left half.

2) UID (User Identity):- it is defined by the public key it is big number 3) Signature:- the term “signature” refers to something you’ve used for the privacy. [10]. 4) Certificate:- certificate are used for the authentication or signed by the sender. And verified by the receiver.

The solution includes PGP & DES to represent the cipher encoded text of the original data. One key is used to protect data. key is of 16bit key. When user want to check the data then there is a need of one key & other is cipher encoded text which encrypted with the PGP Encryption & DES Encryption. Both work simultaneously. Figure 4.1 shows the key & cipher encoded text generated by PGP & DES Encryption.

Fig. 3 Processing of bits. Fig. 4 Encryption using PGP & DES www.sciencepublication.org

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ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

apprehension of the message digest. MD5 is the third message digest algorithm created by

After encryption the data will be secured for future & can’t be accessed by everyone. because this key is not known and cipher encoded text can’t be understand by anyone. This data can only be accessed or seeing by decryption of the data using key & cipher encoded text shown in figure 4.2.

Rivest. The MD5 algorithm is an extension of MD4, which the critical review found to be fast, but possibly not absolutely secure. In comparison, MD5 is not quite as fast as the MD4 algorithm, but offers much more assurance of data security. Introduction of RSA:- RSA used for encryption and authentication. The RSA algorithm is the mainly used in encryption and authentication algorithm it is part of the Web browsers from Microsoft and Netscape. The encryption system is based by RSA Security. VIII.

FLOW CHART:-

Fig. 5Decryption using PGP & DES

VII. Proposed work:In this paper two algorithm are combined MD5 and iterative RSA algorithm.

Working of MD5:- It is used to digital signature mechanism. MD5 is an algorithm used for verify data integrity with the help 128-bit message digest from data input and specific data as a fingerprint is to the specific individual. MD5, which was created by Professor Ronald L. Rivest of MIT, is intended for use with digital signature applications. MD5 is currently a standard, Internet Engineering Task Force (IETF) Request for Comments (RFC) 1321. According to the standard, it is "computationally infeasible" that any two messages that have been input to the MD5 algorithm could have as the output the same message digest, or that a false message could be created through

Fig. 6 Combination of MD5 and RSA. Flow chart 1 explains the input as a MD5 and iterative RSA to the data. Both algorithms generate secure data. Secure data is divided into the encrypted data and the and create the output data. Output data is divided into the decryptography and generate the original data.

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ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

IX. Result:-

Fig. 7 Range of Cluster

Fig. 10 Cluster

Fig. 8 Variation of ranges in different cluster.

Fig. 11 Cluster

Fig. 9 Range of different cluster.

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ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

X. Conclusion Various Securities in Mobile Ad-Hoc Network is the important concern for the basic functionality of network. MANETs often suffer from various security attacks because of its features like open medium, topology dynamically, and management, cooperative. This study has considered the hybrid system using MD5 & RSA encryption algorithm as a means of data security according to attacks. Any method seeking to statistically very improve data availability with the use of multiple node-disjoint paths must consider the actual physical proximity of data transmissions on various paths. In this method the MD5 & RSA are combined, to improve the security of such network. This secures the data as well as preserves the confidentiality and secure.

Fig. 12 Cluster

XI. Future Work In future, we will implement a hybrid algorithm to enhance the security in mobile ad hoc network. This hybrid algorithm consisting of Message Digest 5 & Iterative RSA algorithms and we expect the results of security enhancement to be far better.

Reference:[1] Network Centric Warfare, Department of Defense, Washington, DC, Jul. 2001, report to Congress. [2] Global Information Grid Architectural Vision, Department of Defense, Washington, DC, Jun. 2007. [3] Renu Dalal, Yudhvir Singh and Manju Khar, “A Review on Key Management Schemes in MANET” International Journal of Distributed and Parallel Systems (IJDPS) Vol.3, No.4, July 2012. [4] Panagiotis Papadimitratos ,Zygmunt J. Haas., “Secure message transmission in mobile ad hoc networks.”

Fig. 13 Cluster Figure 10, 11, 12 and 13 shows the various scenario of MANET with nodes cluster and its working.

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ISSN 2348-5426

International Journal of Advances in Science and Technology (IJAST) Vol 2 Issue 2 (June 2014)

[5] Jorg Liebeherr and Guangyu Dong, “An Overlay Approach to Data Security in Ad-Hoc Networks” [6] Danai Chasaki, Y. Sinan Hanay and Tilman Wolf, “Topology Reconstruction via Path Recording in Secure MANET” 978-14244-2677-5/08/$25.00 _c 2008 IEEE. [7] Panagiotis Papadimitratos and Zygmunt J. Haas, “Secure Data Transmission in Mobile Ad Hoc Networks” ACM Workshop on Wireless Security (WiSe 2003), San Diego, CA, September 19, 2003. [8] Abderrezak Rachedi and Abderrahim Benslimane, “A Secure Architecture for Mobile Ad Hoc Networks” International Conference on Mobile Ad-hoc and Sensor Networks (MSN'2006), Hong Kong : China (2006) DOI : 10.1007/11943952_36. [9] VLADIMIR BERMAN, “Enhancing Data Security in Mobile Ad Hoc Networks via Multipath Routing and Directional Transmission”. [10] Panagiotis Papadimitratos and Zygmunt J. Haas, “Secure Data Communication in Mobile Ad Hoc Networks” IEEE Journal On Selected Areas In Communications, Vol. 24, No. 2, February 2006.

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