Visual FoxPro

SFTP Public-Key Authentication (id_ed25519)

See more SFTP Examples

Demonstrates how to authenticate with an SSH/SFTP server using publickey authentication with an Ed25519 private key (id_ed25519). Visual FoxPro

LOCAL lnSuccess
LOCAL loKey
LOCAL lcPrivKeyText
LOCAL loSftp
LOCAL lcHostname
LOCAL lnPort

lnSuccess = 0

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

loKey = CreateObject('Chilkat.SshKey')

* The id_ed25519 file should contain something like this:
* (You can open it in a text editor..)

* -----BEGIN OPENSSH PRIVATE KEY-----
* b3BlbnNzaC1rZXktdjEAAAAACmFlczI1Ni1jdHIAAAAGYmNyeXB0AAAAGAAAABDIeK9+Xw
* 6Do9gnhtrJu5iJAAAAZAAAAAEAAAAzAAAAC3NzaC1lZDI1NTE5AAAAIMh/Ge7fjQCssmVd
* BqjYZbRAI0pY8IrnB6J1yLetq34OAAAAoMVP7cvy4hTiAINA3I4v55OonkpKza8mzfUW18
* RDQeYL3ovCVaAYOGcCpf/SW3QiY6tnXq+5WDEfJ7Z/kQ0nl2+1wSLOytxpyO+IY0rRtLrX
* 6e/agR4nbZpt/MFG6xqcNASbtDgg+9IWGvDrtXOLFofx07/zml+UjFL0tXRpCjOxeqKyXH
* t8SRgdT97d9/bYPwapaXY+b2DVVy5/LVx4Sq8=
* -----END OPENSSH PRIVATE KEY-----

lcPrivKeyText = loKey.LoadText("c:/temp/id_ed25519")
IF (loKey.LastMethodSuccess <> 1) THEN
    ? loKey.LastErrorText
    RELEASE loKey
    CANCEL
ENDIF

* If your private key was saved encrypted, then you'll need the password.
* In this example, the password "blahblah" is valid for the above key -- which is a real Ed25519 key generated/saved from puttygen.
loKey.Password = "blahblah"

lnSuccess = loKey.FromOpenSshPrivateKey(lcPrivKeyText)
IF (lnSuccess <> 1) THEN
    ? loKey.LastErrorText
    RELEASE loKey
    CANCEL
ENDIF

loSftp = CreateObject('Chilkat.SFtp')

* Set some timeouts, in milliseconds:
loSftp.ConnectTimeoutMs = 5000
loSftp.IdleTimeoutMs = 15000

lcHostname = "sftp.example.com"
lnPort = 22
lnSuccess = loSftp.Connect(lcHostname,lnPort)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loKey
    RELEASE loSftp
    CANCEL
ENDIF

* Authenticate with the SSH server.  Chilkat SFTP supports
* both password-based authenication as well as public-key
* authentication.  
lnSuccess = loSftp.AuthenticatePk("myLogin",loKey)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loKey
    RELEASE loSftp
    CANCEL
ENDIF

? loSftp.LastErrorText
? "Public-Key Authentication Successful!"

* Now go do whatever you're app needs to do...

RELEASE loKey
RELEASE loSftp