CkPython

Set an FTPS Client Certificate from a PFX File

Demonstrates the Chilkat Ftp2.SetSslClientCertPfx method, which loads a client certificate and private key from a PFX/P12 file. The first argument is the file path and the second is its password.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: A PFX (PKCS #12) file bundles a certificate with its private key in one password-protected file — the format Windows and many corporate PKI tools export. This is the counterpart to SetSslClientCertPem for mutual-TLS authentication when your credentials are packaged as a single .pfx. Set it before connecting.

Chilkat CkPython Downloads

Download Chilkat for CkPython

CkPython

import sys
import chilkat

success = False

#  Demonstrates the Ftp2.SetSslClientCertPfx method, which loads a client certificate and private
#  key from a PFX/P12 file.  The 1st argument is the PFX file path and the 2nd is its password.

ftp = chilkat.CkFtp2()

ftp.put_Hostname("ftp.example.com")
ftp.put_Username("myFtpLogin")

#  Normally you would not hard-code the password in source.  You should instead obtain it
#  from an interactive prompt, environment variable, or a secrets vault.
ftp.put_Password("myPassword")

#  Use explicit FTPS (AUTH TLS) on the standard FTP port.
ftp.put_AuthTls(True)

#  Provide the PFX client certificate before connecting.  The password should come from a secure
#  source rather than being hard-coded.
pfxPassword = "myPfxPassword"
success = ftp.SetSslClientCertPfx("qa_data/client.pfx",pfxPassword)
if (success == False):
    print(ftp.lastErrorText())
    sys.exit()

success = ftp.Connect()
if (success == False):
    print(ftp.lastErrorText())
    sys.exit()

print("Connected with a PFX client certificate.")

success = ftp.Disconnect()
if (success == False):
    print(ftp.lastErrorText())
    sys.exit()