Design and Implementation of securing data using Cryptography and Steganography

It is a Python based application with use of flask a microservice based framework to demonstrate the combination of cryptography that is based on symmetric key and steganography that is based on modified LSB which helps to provide security to confidential data over an unsecured network.

Project Team Members :

• Awanit Ranjan (181CO161)
• Rutwik Mulay (181CO144)
• Kshitij Raj (181CO129)

Feel Free to head to this Youtube Video for demo of the project : https://youtu.be/N4Kap2nE2Pc

METHODOLOGY :

First, we take the original data and encrypt it into ciphertext by utilizing the proposed symmetric cryptography method in which we will break the 128 bits into 4 equal groups of 32 bit each this 32-bit block will be undergone some circular shift and xor operations with secret keys . ( These ideas are inspired by [1] and [2] ). After this, the encrypted data will be embedded in a Cover Image by use of proposed steganography strategy which is utilizing least significant bit (LSB) [ In this we are think of going with a mixture of LSB-1, LSB-2, LSB-3 (i.e storing at first, second, and a third bit from the least significant side) alternatingly. ] to finally create a new image which is a stego content this is sent over the channel and at receiver side the same process will occur but in reverse, starting from extracting encrypted content from stego and finally decrypting using proposed decryption algorithm again inspired by [1] and [2]. Although ideas are inspired, we will use our own proposed architecture for encryption and decryption finally converting into an application for sending data over insecure channels.

How To Run The Project :

Make Dirctory Crypto_Project :
mkdir Crypto_Project

Move Inside the Directory:
cd Crypto_Project

Clone The Repo:
git clone https://github.com/Awanit512/Implementation-of-securing-data-using-Crypto-and-Stegano

Move Inside The Clone Repo:
cd Implementation-of-securing-data-using-Crypto-and-Stegano

Install all Requirements:
pip install -r requirements.txt

Run the web application:
python3 app.py

After that Copy the link http://127.0.0.1:5000/ and paste it on your Broswe and you are good to go .

REFERENCES

[1] Marwa E. Saleh Abdel Magied A. Aly Fatma A. Omara. CSE from Minia University, ​ Data Security Using Cryptography and Steganography Techniques . ​ International Journal of Advanced Computer Science and applications, 2016.

[2] Ms. Hemlata Sharma, Ms. MithleshArya, and Mr. Dinesh Goyal. Department of CSE ​ Secure Image Hiding Algorithm using Cryptography and Steganography. 2013