Rublon Rublon by: Rublon 2,173 total downloads last updated 5/9/2023 Latest version: 1.3.1 2FA Rublon Authentication Security MFA U2F WebAuthn FIDO FIDO2 SDK Enables multi-factor authentication (MFA) for .NET Framework applications. Supported authentication methods: WebAuthn/U2F Security Keys, Mobile Push, Mobile Passcodes (TOTP), SMS Passcodes, Email Links.