Efficient Authentication and Key Management

Mechanisms for Smart Grid Communications

Abstract:

we propose an efficient key management protocol based on our enhanced

identity-based cryptography for secure SG communications using the public key

infrastructure. Secure key distribution schemes for group communications allow to

establish a secure multi cast communication between a group manager and group

members through an unreliable broadcast channel. Our proposed mechanisms are

capable of preventing various attacks while reducing the management overhead. The

improved efficiency for key management is realized by periodically refreshing all

public private key pairs as well as any multicast keys in all the nodes using only one

newly generated function broadcasted by the key generator entity.The article

classifies, analyzes and compares the most significant key distribution schemes, by

looking at the selective key distribution algorithms, at the predistributed secret data

management, and at the self-healing mechanisms. It reviews polynomial-based

algorithms, exponential arithmetic based algorithms, hash-based techniques, and

others. Propose classification of schemes based on the applied cryptographic

primitives. Self-healing group key distribution schemes can be used in various

network scenarios, thus, to make their analysis and comparison easier, we introduce

an abstract model of the network in which these schemes are applicable. We

identified three elements, or building blocks, of self healing key distribution scheme

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which can be used to classify and compare the existing solutions

Existing System:

1) Insecure mechanisms provided in the existing network.

2) Almost none of the schemes is suitable for large scale WSN in real- world

applications.

3) Existing solutions usually present some trade-off between scheme

performance and security level.

4) Identifies basic building blocks of the scheme and describes in details all major

types of existing solutions.

5) It also contains a thorough security and efficiency analysis of each solution,

and points out issues not identified.

Proposed System:

1) Functionality of the scheme is decomposed into three separate aspects, namely:

selective key distribution mechanism, predistributed secret data management

and self-healing mechanism, which are used to classify and compare schemes.

2) Self-healing group key distribution schemes can be used in multi-cast

networks with smart grid systems, which are established over a networksl,

such as machine-to-machine systems, cellular networks and wireless

networks.

3) Communications security is achieved by message encryption and

authentication using shared symmetric secret group key.

4) A prospective group key distribution scheme should satisfy the following

requirements:

• The scheme should prevent adversaries or unauthorized user nodes, which

are not in G, from learning the group key.

• Key distribution scheme has to provide fresh keys.

Software Requirements:

Platform : JAVA(JDK 1.6)

Front End : JAVA Swing

Back End : MySQL

IDE : Net Beans 6.9

Operating System : Microsoft Windows XP

Hardware Requirements:

Processor : Pentium IV Processor

RAM : 512 MB

Hard Disk : 10GB

Monitor : 14” VGA COLOR MONITOR