ALSAYIH, RIYADH ALNAJIH MISBAH (2020) A STEGANOGRAPHY LEAST SIGNIFICATION BITS (LSB) TECHNIQUE FOR HIDE TEXT DATA ENCRYPTION WITHIN IMAGE. Masters thesis, Universitas Islam Sultan Agung.
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Abstract
With the development of means of communication and the exchange of information over the Internet, and with the development of hacking operations, intruders became able to view, and change information, so the need to find means to preserve privacy and information exchange arose. Cryptography and steganography had a prominent role in this field Encryption distorts the message and steganography hides the message's presence. In this thesis, the proposed system uses both steganography and cryptography to provide a double layer of security. In cryptography, we use both a substitution and RSA algorithm to encrypt the message. In steganography, we used LSB technology with a stego key to embed data in the image, all of this to improve data security. A scale of Mean Square Error (MSE) and a scale of peak signal-to-noise ratio (PSNR) assessed system performance. The results showed that the image quality is good, and it is difficult to notice any difference between it and the original image. The results of both MSE and PSNR were good, as results of greencar1 image show the MSE start from 0.00024 to 0.1087 and the PSNR results start from 84.3151 to 57.7687. The results of Garden1 image show the MSE start from 0.00012 to 0.0618 and PSNR results start from 87.1186 to 60.2238. The results of Desert1 image show the MSE start from 0.00028 to 0.1498 and PSNR results starting from 83.5381 to 56.3746.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Pascasarjana Pascasarjana > Magister Teknik elektro |
| Depositing User: | Pustakawan 4 UNISSULA |
| Date Deposited: | 12 Jan 2022 03:48 |
| Last Modified: | 12 Jan 2022 03:48 |
| URI: | http://repository.unissula.ac.id/id/eprint/21579 |
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