Informatics Publishing Limited

R. Tamilselvi ¹, G. Ravindran ²

Affiliations
1 Department of Electronics, Communication Engineering, Sethu Institute of Technology, Kariapatti - 626106, Tamil Nadu, IN
2 Centre for Medical Electronics, Department of Electronics and Communication Engineering, Anna University, Chennai - 60001, Tamil Nadu, IN

Abstract

Objectives: To develop a new image encryption algorithm using logistics map and Radon transform. It aims at finding an optimum transformation technique that gives better encryption in terms of encryption quality and entropy. Methods/ Analysis: A Pseudo Random Bit Generator (PRBG) is used which outputs a sequence of statistically independent and unbiased binary digits. A novel method is developed using PRBG based on logistics maps and radon transform for DICOM image encryption. Encryption is evaluated based on encryption quality and entropy. Findings: The maximum encryption occurs when the angle of rotation is 135. Similarly, the results of entropy value indicate that the there is a higher encryption of 80% for 135 degree of rotation. The key added with the transformed image also increases the randomness and provides authentication of images. Conclusion/Application: Encryption quality and entropy are analyzed for the algorithm and the results are compared. Experimental results confirm that the encryption quality and entropy obtained from the images can clearly discriminate between the original and encrypted images.

Keywords

DICOM, Logistic Map, PRBG, Radon Transform and Block Transform

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N. Bharathi ¹, G. Ravindran ²

Affiliations
1 Department of Commerce, Delhi College of Arts and Commerce (University of Delhi), IN
2 Department of Management, KPR School of Management, Coimbatore - 641 407, Tamilnadu, IN

Abstract

The Economic reforms initiated by the Government of India during the mid of 1991 altered the business environment radically. The policy changes through LPG and IT helped our financial institutions for multifaceted growth. As a result financial awareness has contributed to dynamism in the Indian economy. Banking is the most leading sector in India and has been among the top performers in the markets. Banks are the front line financial institutions in our economy working under intense and healthy competition. Indian banks have opted for Mergers and Acquisitions (M&A) as a strategic tool for global entry mode and expansion in future. Mergers and Acquisitions is a pre-requisite that lead banks to the phase of consolidation amongst banks in future. This paper focuses on a comparison of pre and post merger of banks and its operational performance measured through selected II ratios.

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G. Ravindran ¹, S. Kamakshi ¹

Affiliations
1 School of Computing, SASTRA University, Thirumalaisamudram, Thanjavur - 613401Tamilnadu, IN

Abstract

Background/Objectives: Security is an important feature for the communication of data in the mobile network. But, however the existing work does not satisfy the security feature of the communication of data in the network. Methods: Due to lack of security in mobile agents, there are many chances of security breach through intruders. To overcome these disadvantages, a general secured aglets system has been proposed and load balancing is achieved effectively through various models. Findings: The evolved aglet system exhibits high security under the external attackers. Hence, it distributes workload for all intermediate client users and determines various time calculations like Total run-time and Elapsed-time. Applications: Some mobile agent applications are Mobile Computing, Personal Assistant, E-commerce, Data Collection, Secure Brokering, Information Distribution, Network Security testing, Database searches and Parallel Computing.

Keywords

Aglets, Load Balancing, Mobile Agents, Security.

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