Ruby

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). Ruby

require 'chilkat'

success = false

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

key = Chilkat::CkSshKey.new()

# 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-----

privKeyText = key.loadText("c:/temp/id_ed25519")
if (key.get_LastMethodSuccess() != true)
    print key.lastErrorText() + "\n";
    exit
end

# 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.
key.put_Password("blahblah")

success = key.FromOpenSshPrivateKey(privKeyText)
if (success != true)
    print key.lastErrorText() + "\n";
    exit
end

sftp = Chilkat::CkSFtp.new()

# Set some timeouts, in milliseconds:
sftp.put_ConnectTimeoutMs(5000)
sftp.put_IdleTimeoutMs(15000)

hostname = "sftp.example.com"
port = 22
success = sftp.Connect(hostname,port)
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

# Authenticate with the SSH server.  Chilkat SFTP supports
# both password-based authenication as well as public-key
# authentication.  
success = sftp.AuthenticatePk("myLogin",key)
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

print sftp.lastErrorText() + "\n";
print "Public-Key Authentication Successful!" + "\n";

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