A New Image Encryption Algorithm Based Slicing and Displacement Followed By Symmetric and Asymmetric Cryptography Technique

The Proposed Architecture for encryption and decryption of an image using suitable user-defined key is developed. The cipher image
generated by this method can be very in size as the original image due to image scaling to make 128 bits block at a time and is suitable for
practical use in the secure transmission of confidential information over the Internet.

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Demonstration of the Congestion Control Algorithms Implemented by TCP

In this paper, we have set up a network in which the Transmission Control Protocol (TCP) is its
end-to-end transmission protocol. We have analyzed the congestion window size with different methods.
The purpose of this study is to examine the congestion control algorithms implemented by TCP. The article
presents a number of scenarios to examine these algorithms. We have tested the scenarios for FTP that
transfers files of 1MB and 10MB sizes. The simulation results show the performance and effect of the file’s size.
The performance parameters in this work are: Sent Segment Sequence Number, Received Segment Ack Number
and Congestion Window Size. The OPNET Modeler simulation results show a good estimation of the traffic
examined in the network.

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