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) …

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 …

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 …

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 …

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 …

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

This paper proposes a method to encrypt an image based on one of the primitive text
encryption algorithms, the Vigenere Cipher. The digital image is first converted to Base64 …

Security is the most challenging aspect in the internet and computer network applications.
Cryptography is the art of achieving security by making message unreadable. The basic task …

Normally, the encryption and decryption is done only to convert the text into an encrypted
form (ie) the confused form of text. In this type of method a hacker may easily hack the text …