Blum Blum Shub in Generating Key in RC4

Abstract

In the manufacture of RC4 encryption, a user always input the key as a security approval. The encryptor usually makes the core. Sometimes the encryptor does not feel that the key made is breakable. The Blum Blum Shub method can generate random key more secure. It means that the key generated can help the data from being solved by a hijacker. Blum Blum Shub uses two prime numbers to generate a key. When attached in RC4, a user does not need to create its key; and fully produce by the Blum Blum Shub module. The ciphertext will be more secure and robust after being combined with Blum Blum Shub.