SSL (Secure Socket Layer) and TLS (Transport Layer Security) are recent additions to the FTP protocol to support authentication and encryption. BlackMoon FTP Server fully supports these protocols and is compatible with any FTP client that supports it too. Using microsoft's built-in security API (SSPI), BlackMoon FTP Server uses certificate facilities in the operating system for maximum integration. These include

• Using system certificate stores
  
• Creating self-signed certificates for use with the ftp server
  
• Creating certificate signing requests for 3rd party certificate authorities and installing the signed certificates
  
• Verifying certificate issuer, certificate revocation list and certificate expiry dates
  
• Verifying against specific a certificate authority, generally trusted certificate authories or no verification on client certificates
  
• Supporting Site-to-Site (FXP) SSL transfers using SSCN or CPSV