Encryption
TLS 1.3 cuts handshake latency in half and removes every cipher suite behind the worst HTTPS attacks. Learn exactly what changed and why upgrading matters.
Encryption
Learn how the TLS handshake works, how symmetric and asymmetric keys protect every HTTPS connection, and why TLS 1.3 made it faster and far more secure.
Privacy
The Signal Protocol powers encrypted messaging for billions of users. Learn how X3DH, the Double Ratchet, and sealed sender make messages truly private.