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Journal of Theoretical and Applied Information Technology
Improving security and imperceptibility using modified least significant bit and fernet symmetric encryption
Author(s)
EZRA KARUNA WIJAYA
Computer Science Department, BINUS Graduate Program – Master of Computer Science Bina Nusantara University, Jakarta 11480, Indonesia
RICO KUMALA
Computer Science Department, BINUS Graduate Program – Master of Computer Science Bina Nusantara University, Jakarta 11480, Indonesia
BENFANO SOEWITO
Computer Science Department, BINUS Graduate Program – Master of Computer Science Bina Nusantara University, Jakarta 11480, Indonesia
Abstract
In our daily life in this digital era, information has become essential. Along with the development of technology and the importance of information, digital crimes such as theft of information also develop. One way to protect information is with steganography. Steganography is a technique to insert secret data or secret messages into an image. In this paper, we will modify the Least Significant Bit method so that the secret message will only be entered into one color bit and combine our proposed Least Significant Bit method with cryptography to improve the security and quality of the holding image. The cryptography technique that we will use is fernet symmetric encryption. In this study, we use the Python programming language. From the results of our research, the quality of the holding image increases for the better. We can express this based on the average PSNR value for each image which increases by 0.1% and decreases from the average MSE value, 2.1%. By implementing our proposed method we are able to improve security and imperceptibility proved by the RGB histogram which is very similar to the original images RGB histogram.
Publication Details
Page(s)
5660-5671
DOI
DOI not available
Published
Journal: Journal of Theoretical and Applied Information Technology, Volume: 100, Issue: 17, Year: 2022
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Keywords
cryptography, MSE, Fernet Symmetric Encryption, steganography, Least Significant Bit, PSNR, PSNR, PSNR, PSNR
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