From the last few decades, various methods have been developed and implemented to impose security in various types of applications in the network. Since text, images, audio, video are the part of digital data that are transferred over open public network so there is need to protect this digital data. Security is measured as a critical factor which is to be taken care of while transferring confidential data on the Internet. As the cyber crimes are increased day by day, network security alone is not sufficient for securing data. Protection of secret information from unauthorized users in a public network has become an important issue in the internet world.
Open nature of the internet, risks of illegitimate accessing and unauthorized tempering and access with transmitted data is increased day by day. Today, the demand of internet has made the transmission of digital media much easier and faster. First step in the decryption process is XOR execution and then decrypt the column encrypted image and finally decrypti ng row encrypted im age to reconstruct the original image. To decrypt the image, reverse operation of encryption is performed. Then we use XOR operation to shuffle all pixels to get the final encrypted image. After row encryption, column nee d to be encrypted by again generating random numbers using LFSR to reorder each pixels in the column of the image. In the encryption stage the LFSR will generate random numbers to reorder positions of each pixels in the row of the image. The encrypted image can be decoded in the decryption stage. In this method two step encryption is provided to give more security to the data. In order to protect data from unauthorized access a new concept is introduced and this is based on linear feedback shift register method. XOR execution and then decrypt the column encrypted image andįinally decrypting row encrypted image to reconstruct the originalĮncrypting data is a way to protect the data or to prevent the unauthorized access of data by other s and these data can be text, image audio, video or anything. Then we use XOR operation to shuffle all pixels to get Random numbers using LFSR to reorder each pixels in the column
After rowĮncryption, column need to be encrypted by again generating Reorder positions of each pixels in the row of the image. In theĮncryption stage the LFSR will generate random numbers to TheĮncrypted image can be decoded in the decryption stage. In this method two stepĮncryption is provided to give more security to the data. On linear feedback shift register method. Unauthorized access a new concept is introduced and this is based The unauthorized access of data by others and these data can be Encrypting data is a way to protect the data or to prevent
0 kommentar(er)
