Objective: Gain an understanding of various cryptography protocols and their applications in securing communications and data.

Introduction to Cryptography Protocols

Key Concepts

  1. SSL/TLS (Secure Sockets Layer/Transport Layer Security):
    • Protocols for securing communications over computer networks.
    • Widely used for securing web browsing, email, VoIP, and other forms of internet communication.
  2. SSH (Secure Shell):
    • Protocol for secure remote login and other secure network services over an insecure network.
    • Primarily used for command-line login and remote command execution.
  3. IPSec (Internet Protocol Security):
    • A suite of protocols for securing internet protocol (IP) communications by authenticating and encrypting each IP packet in a data stream.
    • Often used in VPNs (Virtual Private Networks).

Common Cryptography Protocols

  1. HTTPS (Hypertext Transfer Protocol Secure):
    • An extension of HTTP, used for secure communication over a computer network within a web browser.
    • Utilizes SSL/TLS to encrypt the data.
  2. PGP/GPG (Pretty Good Privacy/GNU Privacy Guard):
    • Used for encrypting and decrypting texts, e-mails, files, directories, and whole disk partitions to increase the security of email communications.

Hands-on Exercise: Exploring SSL/TLS with a Web Browser

Practical Application

Further Reading and Resources