Analysis of LSB Algorithm Modification with Bit Inverse and Insertion based on Length of Message

Fahrul Ikhsan Lubis, Saib Suwilo, Poltak Sihombing

2020

Abstract

Steganographic demolition using the LSB Algorithm is increasingly being carried out by researchers for modifications as needed. Previously, the LSB algorithm has been modified by doing a bit inverse where the message is inserted into the container image and then modified by looking at the 2nd and 3rd LSB bits. If the two bits are different then the inverse of the entered message bit (bit 1 LSB) is performed. However, if the two values are the same then the entered message will not be inverted. This modification is considered good but still lacks in the pixel position of the image that is inserted with the message (modification is done by inserting sequential images in an image). To cover this weakness, in this study a modification of the LSB with insertion based on the length of the message was carried out. Message insertion was carried out on random pixels of an image using the LCG algorithm and the number of message bits that were inserted varies according to the message length. Moreover, the modifications made should produce a better stegoimage than before, as evidenced by calculating the PSNR of a stegoimage. From the modification test results, it was found better results than before both in text message archiving (66.29 dB > 61.8 dB) or in image messages (54.20 dB > 50.01 dB).

Paper Citation

in Harvard Style

Lubis F., Suwilo S. and Sihombing P. (2020). Analysis of LSB Algorithm Modification with Bit Inverse and Insertion based on Length of Message. In Proceedings of the International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies - Volume 1: CESIT, ISBN 978-989-758-501-2, pages 522-529. DOI: 10.5220/0010333500003051

in Bibtex Style

@conference{cesit20,
author={Fahrul Ikhsan Lubis and Saib Suwilo and Poltak Sihombing},
title={Analysis of LSB Algorithm Modification with Bit Inverse and Insertion based on Length of Message},
booktitle={Proceedings of the International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies - Volume 1: CESIT,},
year={2020},
pages={522-529},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010333500003051},
isbn={978-989-758-501-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies - Volume 1: CESIT,
TI - Analysis of LSB Algorithm Modification with Bit Inverse and Insertion based on Length of Message
SN - 978-989-758-501-2
AU - Lubis F.
AU - Suwilo S.
AU - Sihombing P.
PY - 2020
SP - 522
EP - 529
DO - 10.5220/0010333500003051