Journal of Information Security, 2024, 15, 355-377 https://www.scirp.org/journal/jis ISSN Online: 2153-1242 ISSN Print: 2153-1234 DOI: 10.4236/jis.2024.153021 Jul. 17, 2024 355 Journal of Information Security A Novel LSB Steganography Technique for Enhancing Cloud Security Ahsan Ullah, Md. Inzamul Haque, Md. Mokarom Hossain, Md. Sadman Ahammad, Mst. Nishita Aktar Department of Computer Science and Engineering, World University of Bangladesh, Dhaka, Bangladesh Abstract Steganography is a technique that is frequently used to hide hidden informa- tion in multimedia artifacts including music, video, and images. In order to protect data saved in the cloud, this paper presents a steganography method for encrypting sound utilizing LSB-based computation. By using the least sig- nificant bit (LSB) of a byte to represent a message and then substituting each LSB bit with a binary message and encrypting a significant quantity of data. The proposed system uses the LSB technique of picture steganography, Mul- ti-Level Encryption Algorithm (MLEA) and Two-Level Encryption Algo- rithm (TLEA) data encryption to give the highest level of cloud security. Com- pared to other current schemes, the performance of the suggested method is 1.732125% better on average. Keywords Steganography, LSB, Cloud Computing, Security, Cryptography, TLEA, MLEA 1. Introduction The concept of steganography emerges as a compelling solution. Steganography, the art and science of concealing information within other data, offers a covert means of communication that complements encryption techniques. By embed- ding secret messages within innocuous carrier files, steganography enables the transmission of sensitive information without drawing unwanted attention. In this method, we use a cover image which is changed to the flipped cover image, and the pixel state of the image is changed. Changing the pixels causes the image to flip and change from left to right. Then the cover image is converted to RGB. Here among the three-color channels, we selected the green color. Then this How to cite this paper: Ullah, A., Haque, Md.I., Hossain, Md.M., Ahammad, Md.S. and Aktar, Mst.N. (2024) A Novel LSB Steganography Technique for Enhancing Cloud Security. Journal of Information Security, 15, 355-377. https://doi.org/10.4236/jis.2024.153021 Received: March 14, 2024 Accepted: July 14, 2024 Published: July 17, 2024 Copyright © 2024 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access