About Lesson
Cryptography in Communication
Securing communication channels is one of the primary applications of cryptography. It ensures that messages, emails, and data exchanged over the internet remain private and untampered.
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Secure Sockets Layer (SSL) and Transport Layer Security (TLS):
- SSL/TLS protocols encrypt data transmitted over the internet, securing it from eavesdropping and man-in-the-middle attacks.
- They form the basis of HTTPS, the secure version of HTTP used in web browsing.
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End-to-End Encryption (E2EE):
- Used in messaging apps like WhatsApp, Signal, and Telegram.
- Ensures that only the sender and intended recipient can read the messages, as they are encrypted on the sender’s device and decrypted on the recipient’s.
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Virtual Private Networks (VPNs):
- VPNs use encryption to create secure tunnels for data transmission over public networks, ensuring privacy and protecting sensitive information from interception.