International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Modifications of Arithmetic Coding (AC) are proposed to boost the protection of ancient AC. Chosen-plaintext attacks have been projected for these two ways once a similar key is used to cipher totally different messages. A tendency to provides a definition for security of cryptography mistreatment AC that's supported the shortcoming of the someone to differentiate between the cryptography of plain text from the cryptography of another. Mistreatment this definition, the authors prove that RAC is insecure although a replacement random secret's used to compress each message from the literature survey.