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networking

TLS/SSL Handshake

The TLS (Transport Layer Security) handshake establishes a secure, encrypted connection between a client and server. During the handshake, both parties agree on a protocol version and cipher suite, the server presents its certificate for authentication, and they derive shared session keys for symmetric encryption. This process ensures that subsequent communication is confidential and tamper-proof.

Use Cases

  • Understanding how HTTPS secures web traffic between browsers and servers
  • Debugging certificate errors and TLS version mismatches in production
  • Configuring cipher suites and certificate chains for web servers
  • Implementing mutual TLS (mTLS) for service-to-service authentication

Visualization

SETUPClientBrowserServerTLS Enabled
Speed:1x
TLS Handshake — establishes an encrypted connection before any data is exchangedStep 1 / 8

Implementation

Output

Click "Run Code" to see output...