In today�s world internet is being used by almost everyone. Numerous file exchanges take place online including many official documents. These files require some sort of security mechanisms while being transmitted over the internet. Cryptography is one such means by which a person can encrypt the data and send it through the internet. This way the data is safe and unreadable for the intruders. In this paper we have proposed a system which combines the advantages of parallel processing and cryptographic algorithms. The use of parallel processing enhances the speed of system when compared to the traditional crypto systems. In our approach we have divided a file into two slices and have applied a single algorithm with different key for each slice and the processing of the algorithm is done in a parallel environment. From our experiments we found out that the execution time of a cryptographic algorithm is considerably reduced in a parallel environment when compared to the generic sequential methods.