International Journal of Computer Science and Network
Cryptography enables the user to transmit confidential information across any insecure network so that it cannot be used by an intruder. Cryptography is the process that involves encryption and decryption of text using various mechanisms or algorithms. A cryptographic algorithm is a mathematical function that can be used in the process of encryption and decryption. Encryption is the process of converting the plain text into an unreadable form called a cipher text. This unreadable form cannot be easily understood by an intruder and sent across the insecure media.