Steganography is the practice of concealing the communication existence by hiding the
traveled message in cover media. This paper aims to study Discrete Cosine Transform …

E-Commerce or Electronic commerce is the buying and selling of goods and services in
which any commercial transactions through wireless electronic devices such as hand-held …

Security of the information stored in android-based smartphones is a hot research topic.
Image steganography can be employed to increase the security of the confidential data …

Today image steganography plays a key role for exchanging a secret data through the
internet. However, the optimal choice of images formats for processing steganography is still …

This work presents a new asymmetric data hiding technique that hides a variable number of
secret message bits in the discrete cosine transform (DCT) coefficients of a cover image …

For the security of digital data, different cryptosystems have been proposed in recent years.
The substitution boxes are used to generate confusion in the cryptosystems for hiding the …

Data protection has become a more critical issue and the necessity to secure a transmission
channel is become more serious. Therefore, steganography, the art of hidden data into a …

Steganography emerged as an effective technology for securing the data over the network.
Its specificity of concealing the existence of the secret data supports its application in …

In the present epoch, where technology is rising fast with new developments, the main
challenge for the sender is to ensure that information is sent in a correct and covert mode …

Comparative study of cryptography and steganography techniques shows that they have
some strong and weak points when they used alone. But as we know from soft computing …