A new fast stream cipher, MAJE4 is designed and

developed with a variable key size of 128-bit or 256-bit. The

randomness property of the stream cipher is analysed by using

the statistical tests. The performance evaluation of the stream

cipher is done in comparison with another fast stream cipher

called JEROBOAM. The focus is to generate a long

unpredictable key stream with better performance, which can

be used for cryptographic applications.

Keywords- cryptography, stream cipher, pseudo random

number generator (PRNG)