Pseudorandom Binary Key Generation from Binary Files

This paper presents an algorithm to generate a long pseudorandom binary key using a binary file downloaded from the Internet as seed or input. This file can be of any type i.e. video, audio, text, image etc. The output is a long pseudorandom binary key. The generated key can be used to encrypt any type of data file using a stream cipher encryption algorithm. The key files obtained from the algorithm implementation are successfully tested by the well known NIST and ENT test suites for statistical validation.