4. Cryptography and network security

RSA cryptosystem

  Informationization of the society is advanced, and threats such as tapping, the falsification, the hacker, and computer virus increase very much correspondingly by the development of the information infrastructure of which it is basic the computer and is the network in recent years.Therefore, the value of information comes to be admitted in general, and the cryptography is an important technology centered in them.
  In this research, it researches for the especially famous RSA cryptosystem in the code that is called a public key cryptosystem, using pseudoprime numbers.

INTRODUCTION