Video Steganography: Using Scrambling- AES Encryption and DCT, DST Steganography
Aayushi Ajmera, Mrunal Divecha, Shiraz Saptarshi Ghosh, Ishita Raval, Ratnesh N. Chaturvedi · 2019
Steganography is a creative work of concealing secret data or message within an ordinary, non-secret file. This helps to prevent detection of the existence secret data. Steganography takes information hiding one step ahead than data encryption. Data encryption hides the data, but Steganography hides the existence of the data. In this paper, we combine both Data Steganography and Data Encryption, thus providing double layer security. The paper deals with Multimedia Steganography which enables working successfully with video files, without obscuring the quality of the resultant video. The proposed technique deals with Steganography in Transform domain, thus overcoming the drawbacks of the spatial domain techniques. An important drawback of spatial domain technique is that data is prone to different attacks, whereas Transform domain provides a robust aftermath. Applying the advantages of Transform domain, we have used DCT and DST technique on the cover video whilst using Encryption algorithm of Scrambling- AES on the message image, ensuring double layer security.