Cryptography & Network Security

Abstract: Cryptography is the practice and study of techniques to secure communication in the presence of adversarial behavior. On the other hand, Network security is the set of rules and configurations designed to protect the integrity, confidentiality, and accessibility of computer networks and data using both software and hardware technologies. Cryptography and network security are used to protect network and data communication take place over wireless networks and data which is stored in our systems. Cryptography is a network security tactic that is used to protect enterprise information and communication from cyber threats through the use of codes(encryption) using techniques such as merging words with images, and other ways to hide information in storage or transit. In this paper, we discussed about cryptography process, security mechanism, security services, attacks, types of cryptography, Steganography.