Challenge-Handshake Authentication Protocol (CHAP) MS-CHAPv2 NT LAN Manager (NTLM) NTLMv2 Wi-Fi Protected Access WPA2 Remote Authentication Dial In User Service (RADIUS) Diameter Secure Remote Password protocol (SRP) Protected Extensible Authentication Protocol (PEAP) Terminal Access Controller Access-Control System (TACACS) TACACS+ 28
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