Key Exchange

Key exchange establishes shared session keys (often via ECDH) without sending the secret key directly over the network. If a feature sounds vague in marketing, look for measurable signals: audits, documentation, and testable settings. For most people, the biggest privacy win is shielding activity from local network observers and reducing ISP-level profiling. Elite VPN setups focus on reliability: stable reconnects, clean DNS handling, and a proven kill-switch behavior. VPN Surf and Elite VPN guidance aims to keep the concept actionable, not just theoretical.