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 …

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 …

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 …

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 …

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 …

Network Security is the most vital component in information security because it is
responsible for securing all information passed through networked computers.[1] In this …

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

In this paper we have proposed a new algorithm of encrypting and decrypting images and
text files. The proposed method is implemented by combining the concepts of Diffie Hellman …

Nowadays, the development of information technology can be described as extremely rapid,
especially with the widespread use of the Internet; the security of communications in the …