Ruby

SFTP Public-Key Authentication

See more SFTP Examples

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

require 'chilkat'

success = false

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

sftp = Chilkat::CkSFtp.new()

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

# Connect to the SSH server.  
# The standard SSH port = 22
# The hostname may be a hostname or IP address.
hostname = "sftp.example.com"
port = 22
success = sftp.Connect(hostname,port)
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

key = Chilkat::CkSshKey.new()

# 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.)
privKey = key.loadText("myPrivateKey.pem")
if (key.get_LastMethodSuccess() != true)
    print key.lastErrorText() + "\n";
    exit
end

# 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.
success = key.FromOpenSshPrivateKey(privKey)
if (success != true)
    print key.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";