The much required Transport Layer Security version TLS 1.3 approved finally by IETF after 28 drafts. TLS 1.3 is not a minor redesign, it is a major redesign of TLS 1.2.
Internet Engineering Task Force (IETF) is an open source community of network designers, operators, vendors, and researchers who collaborate to evaluate the standards.
TLS1.3 – Enhanced Security and Speed
Web connections depend on TLS for securing network traffic and TLS 1.3 be a big step to move forward in securing connections with enhanced performance.
With TLS 1.3 forward secrecy is mandatory, which ensures your sessions key will not be compromised even if the private key that present in the server is compromised.
TLS 1.3 removes old and unsafe cryptographic primitives, it is built using modern analytic techniques to be safer, it is always forward secure, it encrypts more data, and it is faster than TLS 1.2.
TLS 1.3 now removes obsolete and insecure features from TLS 1.2, including the following:
Arbitrary Diffie-Hellman groups — CVE-2016-0701
EXPORT-strength ciphers – Responsible for FREAK and LogJam
It includes new algorithms, such as ed25519, ed448, X25519, X448 ChaCha20/Poly1305.
The TLS 1.3 version requires only a single round trip to set up the connections which give enormous speed for new connections.
TLS 1.3 is designed for speed, specifically by reducing the number of network round-trips required before data can be sent to one round-trip (1-RTT) or even zero round-trips (0-RTT) for repeat connections.
TLS 1.3 brings changes in handling Server Name Identification “the SNI value is explicitly specified in the handshake, so the servers do not require to associate the SNI value in the ticket”.
Source : GBHackers