Multilevel Steganography for Data Protection

Nowadays, the world is changing very fast. In this world, there are many technologies that are being developed to protect the data from the outer world. Here the outer world is referred to a hacker or the third man who is in between one end user and the other end user. There is many software’s which protects and transfers the data from the one machine to another machine or from one user to the other user, as in mobile phones, laptop, IoT devices, cloud, etc. There are also many algorithms and techniques, which protect data from unauthorized accesses. One of the techniques is called stenography. Two levels of data protection are carried out in the current proposed model. One is image stenography and another one is video stenography. Here, the text is encrypted by using digital encryption system (DES). The encrypted data is embedded in the image by using the LSB technique. The stegano image is converted to the base 16 in text format and embedded on to the video by using the frame converting technique. This process is called the multilevel stenography where the data is processed by two stenography techniques, i.e., image stenography and video stenography. This increases the security of data and the data is easily transmitted from one machine to the other machine providing multilevel security.