GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES AN EFFICIENT METHOD FOR SECURED TRANSFER OF MEDICAL IMAGES

Sharmila Kumari, & Sudarshana
2017 unpublished
Transmission of multimedia data is in a secured manner in different channels is found to be one of the complex tasks. Due to heavy traffic in the network,chances of data drop are also very high. In such cases, intruder or any third party can tap the information where the security is compromised. Hence to reduce the transmission time, a novel method is introduced here that provides security of the data as well as compression for faster transmission of data. We have seen substitution cipher
more » ... tution cipher scheme has gained prominence in the cryptographic system. The proposed technique considers two arrays namely row array and column array where encrypted data is stored. Encryption is based on the key of random array. All color components of the pixels of the image are encrypted individually. Addition modulo 256 is applied one pixel values using a random number. Individually encrypted colors are combined together to form an encrypted image. This encrypted image is compressed using Deflate compression technique. Performance of the proposed method is evaluated on many images and comparative study with the existing system revealed that the proposed system possess better performance.
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