Security becomes an important issue when secure or sensitive information is sent over a
network where all computers are connected together. In such a network a computer is …

Today many of the activities are performed online through the Internet. One of the methods
used to protect the data while sending it through the Internet is cryptography. In a previous …

The Internet is now providing many online services. These online services need both a client
and a server to communicate with each other (this model is known as a client-server model) …

Nowadays, data security becomes a big issue and a challenge when sending sensitive data
through the Internet. For example; sending user password, performing money transaction (e …

In cryptographic application, the data sent to a remote host are encrypted first at the source
machine using an encryption key then the encrypted data are sent to the destination …

Nowadays, the rapid growth of Internet applications open the doors for people to
communicate and do business around the world and thus saving time, efforts and money …

Protecting the security and privacy of data has become extremely important in this period,
especially with the increase in new technologies and the adoption of government and …

Data security is the science of protecting data in information technology, including
authentication, data encryption, data decryption, data recovery, and user protection. To …

Data encryption techniques are used to protect data against hackers. Text-to-Image
encryption algorithm (TTIE) is an encryption algorithm proposed for data encryption. The …

Digital image is a collection of the pixel with different intensity values, and each image is in
the form of n* m, no of pixel (where n, m is no of Rows and Column) when we transfer a …