Having discovered the importance of computers in al ranks and aspects of life, computer system is applicable to almost all human activities and has been employed to automates most activities especially in areas were management data is of outmost importance.

Due to unauthorized access to data in database, repose disclosure or modification will invade individual process, computers have been produced with an encipher and decipher package in various computer language like C++, paschal, Fortran, visual basic etc. voting modified from or RSA cipher encryption, the package is two keys are required. The two keys are public key and secret key respectively.

The project is aimed at developing a computer data security system using data, encryption know as cryptography to LEECOM FINANCE AND INVESTMENT LTD. it also takes a look at the present data security of LEECOM FINANCE AND INVESTMENT LTD, identifying the problems encountered in carrying out these process.  

                   BACKGROUND OF THE STUDY

When writing is new in a society, there will not be any data security, since the script itself is a cryptogram intelligible only to the few whom can read or write. But as literacy spread, cryptology appears soon after. This is true for the society in which we fine ourselves today.

According to Demmy (1989) data security simply means the act of protecting something against attack, security is done as a result of safety.

This is done to avoid the misuse of information relating to people of corporate bodies, whereby we protect our computer and data against unauthorized disclosure, modification and also security the system against virus and damage that might be caused by external force.

During the ancient times, record keeping was done by means of primitive notches cut into wooden stick, on bone fragments or marks pressed in clay tables. They soon improved with the development of papyrus and calamus pen. The ancient record keeping was well in hand and reached its peak in Roman Republic and Roman Empire.

The census of 1890 turned out to be especially significant in the evolution of recorded machine processible form, for this census. Harman Hollevith has developed the punched card as a unit record and invented machinery for processing these records some 60years later, the first electronic computer was constructed and their application in record keeping system ushered in the era of computerization.

From this humble beginning of antiquity, record keeping has grow into gigantic dimensions wit the advent of computer network, conferencing through computers and so on.

                         PURPOSE OF STUDY

This project work is carried out to make sure for maximum computerized data security system. It also prove the usefulness of computer in the case study. It will also enlighten the student in the course of studying relating to other fields of life.

This project will also provided detailed information on the concept of data security. The importance of computerize and the importance of data security in the field. There is always the need in lives of individuals and corporation for privacy and secrecy. The purpose of study of this project of computer data and information.


                   IMPORTANCE OF STUDY

The study work ensures that data (information) will be secured against unwanted bodies; by developing a better data security system for the company (LEECON FINANCE AND INVESTMENT LIMITED).

This study will also enable us to investigate a secured cryptosystem.