University of Twente Student Theses
BaatCheet : Android chat application coupling End-to-End encryption and LSB substitution
Dodeja, Ujjwal (2024) BaatCheet : Android chat application coupling End-to-End encryption and LSB substitution.
This is the latest version of this item.
|
PDF
4MB |
| Abstract: | In this era of rapid technological advancements, secure communication has become a paramount concern. Messaging applications like WhatsApp, Signal and Telegram offer End-to-end encryption (E2EE), which ensures that only the sender and receiver can read the messages. The persistent need for better security measures has led researchers to explore data-hiding techniques that use media files as data carriers, also known as steganography techniques. Image steganography, the hiding of data in images, has been widely used due to the high frequency of digital images on the Internet. Least Significant Bit (LSB) substitution is a technique that hides the secret data into the least significant bits of an image, and its computationally lightweight nature provides a delicate balance between security and operational efficiency compared to techniques like Discrete Cosine Transform, which provides higher embedding capacity. The study was aimed at achieving two primary goals: implementing End-to-End encryption and integrating LSB substitution for image steganography. The research looks into developing an E2EE Android-based chat application utilizing established E2EE protocols like Signal Protocol from Signal, and MTProto 2.0 from Telegram. Anonymous sign-ups and an extra security layer through LSB substitution distinguish the application from other E2EE chat applications like Telegram, Theerma, etc. This research produced an E2EE chat application incorporating LSB substitution. The research concludes with insights into involved cryptographic algorithms, the integration process with LSB, and its effects on the efficiency in terms of message exchange time, and communication capacity. |
| Item Type: | Essay (Bachelor) |
| Faculty: | EEMCS: Electrical Engineering, Mathematics and Computer Science |
| Subject: | 54 computer science |
| Programme: | Computer Science BSc (56964) |
| Link to this item: | https://purl.utwente.nl/essays/98212 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
Show download statistics for this publication
Show download statistics for this publicationRepository Staff Only: item control page