Xbase++

SFTP Public-Key Authentication

See more SFTP Examples

Demonstrates how to authenticate with an SSH/SFTP server using publickey authentication. Xbase++

LOCAL nSuccess
LOCAL oSftp
LOCAL cHostname
LOCAL nPort
LOCAL oKey
LOCAL cPrivKey

nSuccess := 0

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

oSftp := CreateObject("Chilkat.SFtp")

//  Set some timeouts, in milliseconds:
oSftp:ConnectTimeoutMs := 5000
oSftp:IdleTimeoutMs := 15000

//  Connect to the SSH server.  
//  The standard SSH port = 22
//  The hostname may be a hostname or IP address.
cHostname := "sftp.example.com"
nPort := 22
nSuccess := oSftp:Connect(cHostname, nPort)
IF (nSuccess != 1)
    ? oSftp:LastErrorText
    oSftp:destroy()
    RETURN
ENDIF

oKey := CreateObject("Chilkat.SshKey")

//  Load a PEM file into a string variable:
//  (This does not load the PEM file into the key.  The LoadText
//  method is a convenience method for loading the full contents of ANY text
//  file into a string variable.)
cPrivKey := oKey:LoadText("myPrivateKey.pem")
IF (oKey:LastMethodSuccess != 1)
    ? oKey:LastErrorText
    oSftp:destroy()
    oKey:destroy()
    RETURN
ENDIF

//  Load a private key from a PEM string:
//  (Private keys may be loaded from OpenSSH and Putty formats.
//  Both encrypted and unencrypted private key file formats
//  are supported.  This example loads an unencrypted private
//  key in OpenSSH format.
nSuccess := oKey:FromOpenSshPrivateKey(cPrivKey)
IF (nSuccess != 1)
    ? oKey:LastErrorText
    oSftp:destroy()
    oKey:destroy()
    RETURN
ENDIF

//  Authenticate with the SSH server.  Chilkat SFTP supports
//  both password-based authenication as well as public-key
//  authentication.  
nSuccess := oSftp:AuthenticatePk("myLogin", oKey)
IF (nSuccess != 1)
    ? oSftp:LastErrorText
    oSftp:destroy()
    oKey:destroy()
    RETURN
ENDIF

? oSftp:LastErrorText
? "Public-Key Authentication Successful!"

oSftp:destroy()
oKey:destroy()