TLS 1.2 vs TLS 1.3

Keypoints :

• Encryption is essential for protecting sensitive data during online transactions.
• HTTPS secures data transmission, ensured by the TLS protocol.
• TLS evolved from the now-retired SSL and is recognized as the gold standard for online security.
• Free TLS/SSL certificates from services like Let’s Encrypt have made secure connections more accessible.
• TLS 1.2, despite its improvements over SSL, has vulnerabilities like Heartbleed and LogJam.
• TLS 1.3 aims to improve speed and security by reducing handshake latency and eliminating weak ciphers.
• The new 0-RTT mode allows data transmission during the handshake process.
• The protocol supports modern cryptography techniques for enhanced security.
• TLS 1.3 removes the complexity of cipher suites, focusing on separate negotiations for key exchange and encryption methods.
• Perfect Forward Secrecy is achieved by using Ephemeral Diffie-Hellman for key exchange in TLS 1.3.
• Old, vulnerable methods are no longer supported in TLS 1.3, simplifying server management.
• TLS 1.3 has been widely adopted by major browsers and services, although not all are fully compatible yet.