An interactive explainer
The connection TCP just opened is a postcard. Every router on the path can read it, and change it. One extra round trip turns it into a sealed envelope. And the seal is worth nothing without a name on it.
TLS · HTTPS · Certificates · Encryption
Networking · Intermediate · 10 min · How two strangers get a secret past everyone in the room — an interactive explainer on ViLearn, with a simulation and a knowledge check. All explainers.
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