CRYPTOGRAPHIC TECHNIQUE FOR COMMUNICATION SYSTEM

In Today’s world Sensitive data is increasingly used in communication over the internet. Thus Security of biggest concern internet users. Best solution use some cryptography algorithm which encrypts cipher and transfers it again decrypted to original data. The field deals with procedure for conveying information securely. Cryptography includes a set techniques scrambling or disguising so that available only someone who can restore its form. by using secret code was Egyptians 4000 years ago. However, science initiated Arabs since 600s. becomes vital twentieth century where played crucial role World War I 2. This paper focuses on analysis two types key exists, based availability publicly: Private Cryptography, Public Key Cryptography. Both sender recipient share must be kept private.