Two Level Security in Delivering Message Using Encryption and Steganography Techniques
Nadzirah Mohamad Zamri, Syed Muhammad Hazry Asraf, Syed Zulkarnain Syed Idrus · Journal of Physics Conference Series · 2020
Data hiding is a process that secretly embedding information inside a data source without changing its original quality. Two popular techniques are steganography and cryptography [1]. Steganography is the art and science of hiding information by embedding messages into another image, audio or video [2]. Cryptography use mathematics to encrypt and decrypt data and transform plaintext into cipher text [3]. This study is about securing message by implementing the combination of steganography using Least Significant Bit (LSB) technique and cryptography using Vigenere cipher [4]. The methodology use is cyclic waterfall model. This model is simple and easy to understand. The phases also do not overlap with each other. The testing involves the process of embedding plaintext and cipher text into cover image. The results from the testing are the Mean Squared Error (MSE) and Peak Signal Noise Ratio (PSNR) value of the stego-image. The lower the MSE value and the higher the PSNR value is better image quality.