Implementation of (MD5) Algorithm

Abstract

This paper describes the (MD5) message-digest algorithm. The algorithm takes as input a message of arbitrary length and produces an output of 128-bit as "message digest" of the input . It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message digest. The MD5 algorithm is intended for digital signature applications, where large file must be "compressed" in a secure manner before being encrypted with a private (secret) key under a public-key cryptosystem such as RSA. This algorithm is fast on 32-bit machines, and does not require large substitution tables.