Create a certificate. CuteFTP Pro will generate three files including a Certificate Signing Request (.csr) file.
Send the .csr file to the server or a Certificate Authority (CA) such as Verisign (www.verisign.com) or Thawte (www.thawte.com).
The server or CA will use your .csr file to create a signed certificate (.crt) file.
The server or CA sends a signed certificate (.crt) file to you.
Replace your existing .crt file with the signed one.
Creating a certificate generates three files;
A Private key file (.key) - The private key should never be distributed to anyone. It is used to decrypt sessions encrypted by a public key.
A Certificate request file (.csr) - This file can be signed by GlobalSCAPE Secure FTP Server's Certificate Signing Utility or sent to intermediate Certificate Authority such as Verisign or Thawte for signing.
A Certificate file (.crt) - This is a signed certificate, whether self-signed or signed by an intermediate Certificate Authority.