Abstract:
Nowadays, people widely use computer networks to communicate from one place to another. Security is needed to protect data from hacker. Cryptography is one of the primary ways to do the job. In cryptography, encryption is the process of obscuring information to make it unreadable without special knowledge. This is usually done for security, and typically for confidential communications. This paper is implemented by combining Data Encryption Standard and Diffie-Hellman Key Exchange Algorithm (D-H) that will solve to protect a secure key. By using two algorithms, at first, if Diffie-Hellman Key Exchange Algorithm uses to compute, it gets the secret key in this system. And then getting secret key is needed to use again by DES algorithm for encryption and decryption techniques.
