(Perl) SFTP Authentication using an SSH Certificate

See more SFTP Examples

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

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

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux

use 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 == 0) {
    print "Failed to load user_ecdsa_key-cert.pub" . "\r\n";
    exit;
}

$sbPrivKey = chilkat::CkStringBuilder->new();
$success = $sbPrivKey->LoadFile("qa_data/sshKeys/user_ecdsa_key","utf-8");
if ($success == 0) {
    print "Failed to load user_ecdsa_key" . "\r\n";
    exit;
}

$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 == 0) {
    print $key->lastErrorText() . "\r\n";
    exit;
}

# 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());

$sftp = chilkat::CkSFtp->new();

$hostname = "sftp.example.com";
$port = 22;
$success = $sftp->Connect($hostname,$port);
if ($success != 1) {
    print $sftp->lastErrorText() . "\r\n";
    exit;
}

$success = $sftp->AuthenticatePk("myLogin",$key);
if ($success != 1) {
    print $sftp->lastErrorText() . "\r\n";
    exit;
}

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