DEVELOPMENT OF A NEW WAY TO ENCRYPT THE ARABIC LANGUAGE LETTERS USING THE SYMMETRIC ENCRYPTION SYSTEM

Abstract

It is not secret that the algorithms and methods used to encrypt messages in Arabic language are few and old, there are no modern encryption algorithms to encrypt the Arabic letters along the lines as the encryption algorithms of the letters in English, though they are few and uncommon use. On this basis, has been developed a way to encrypt the Arabic character letters by using a symmetric encryption system, XOR logical function, and binary & decimal encoding schemes to convert letters to decimal ambiguous numbers does not indicate the content of the message. Been using an encryption key length (15) digits, five of them to encode the character that the letter start with it, and the remaining parts are used with the XOR function. Possible to include or not include the key within the message, according to what was agreed upon between the parties. Encrypt each two symbols together and thus eliminating the problem of the most frequent letters in the Arabic language and by which they can predict the original text of the message. The encrypted text figures twice the size of the original text.