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(PowerBuilder) Using WS_FTP Self-signed Certificate file (.crt) and Private Key File. (.key)

Demonstrates how to use a self-signed certificate created by WS_FTP with Chilkat FTP2.

Note: It is usually not necessary for the FTP client to use a client-side certificate. Most FTP servers using SSL and TLS connections (explicit or implicit) do not require client-side certs. In addition, some high-security FTP servers require "real" certificates -- meaning certificates issued by a real certificate authority with a chain of authentication that leads to a trusted root certificate. The certificates created by WS_FTP are self-signed and untrusted.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Ftp
oleobject loo_CertStore
integer li_Success
oleobject loo_Cert

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Important:  Before running this program, convert your
// .crt and .key files to a .p12 using OpenSSL:
// The command is this:
// openssl pkcs12 -export -in test.crt -inkey test.key -out test.p12
// 

loo_Ftp = create oleobject
li_rc = loo_Ftp.ConnectToNewObject("Chilkat_9_5_0.Ftp2")
if li_rc < 0 then
    destroy loo_Ftp
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Ftp.Hostname = "ftp.***.com"
loo_Ftp.Port = 21
loo_Ftp.Username = "testLogin"
loo_Ftp.Password = "testPassword"

// This example will use explict TLS/SSL.
// Establish an explicit secure channel after connection
// on the standard FTP port 21.
loo_Ftp.AuthTls = 1

// The Ssl property is for establishing an implicit SSL connection
// on port 990.  Because this example uses explicit SSL, it 
// should remain 0.
loo_Ftp.Ssl = 0

// Create an instance of a certificate store object, load a .p12 file,
// locate the certificate we need, and use it for signing.
// (a P12/PFX file may contain more than one certificate.)
loo_CertStore = create oleobject
li_rc = loo_CertStore.ConnectToNewObject("Chilkat_9_5_0.CertStore")

// The 1st argument is the filename, the 2nd arg is the 
// .p12 file's password.  (OpenSSL will prompty you to set a password
// when converting the .crt and .key into a .p12).
li_Success = loo_CertStore.LoadPfxFile("test.p12","secret")
if li_Success <> 1 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Ftp
    destroy loo_CertStore
    return
end if

loo_Cert = loo_CertStore.FindCertBySubjectCN("Your cert's common name")
if loo_CertStore.LastMethodSuccess = 0 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Ftp
    destroy loo_CertStore
    return
end if

li_Success = loo_Ftp.SetSslClientCert(loo_Cert)

destroy loo_Cert

// Connect and login to the FTP server.
li_Success = loo_Ftp.Connect()
if li_Success <> 1 then
    Write-Debug loo_Ftp.LastErrorText
    destroy loo_Ftp
    destroy loo_CertStore
    return
else
    // LastErrorText contains information even when
    // successful. This allows you to visually verify
    // that the secure connection actually occurred.
    Write-Debug loo_Ftp.LastErrorText
end if

Write-Debug "Secure FTP Channel Established!"
Write-Debug loo_Ftp.LastErrorText

// Do whatever you're doing to do ...
// upload files, download files, etc...

// ...
// ...

li_Success = loo_Ftp.Disconnect()


destroy loo_Ftp
destroy loo_CertStore

 

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