(Ruby) SSH Authentication using an SSH Certificate

See more SSH Examples

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://www.chilkatsoft.com/understanding_ssh_certificates.asp

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

sbSshCert = Chilkat::CkStringBuilder.new()
success = sbSshCert.LoadFile("qa_data/sshCert/user_ecdsa_key-cert.pub","utf-8")
if (success == false)
    print "Failed to load user_ecdsa_key-cert.pub" + "\n";
    exit
end

sbPrivKey = Chilkat::CkStringBuilder.new()
success = sbPrivKey.LoadFile("qa_data/sshKeys/user_ecdsa_key","utf-8")
if (success == false)
    print "Failed to load user_ecdsa_key" + "\n";
    exit
end

key = Chilkat::CkSshKey.new()
# Provide the password if the user_ecdsa_key is stored in an encrypted format.
key.put_Password("secret")
success = key.FromOpenSshPrivateKey(sbPrivKey.getAsString())
if (success == false)
    print key.lastErrorText() + "\n";
    exit
end

# Indicate that the SSH certificate is to be used for authentication.
# The UseSshCertificate method was added in Chilkat v11.0.0
key.UseSshCertificate(sbSshCert.getAsString())

ssh = Chilkat::CkSsh.new()

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

success = ssh.AuthenticatePk("myLogin",key)
if (success != true)
    print ssh.lastErrorText() + "\n";
    exit
end

print "Public-Key Authentication using an SSH Certificate was Successful!" + "\n";