(PHP ActiveX) Load an SSH Key from a File (Many Formats Supported)

Demonstrates how to load an SSH public or private key object from a file. The file can be in any of the following formats:

• OpenSSH private key
• OpenSSH public key
• PuTTY private key
• RFC 4716 public key

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.SshKey')
$sshkey = new COM("Chilkat.SshKey");

// First, use the LoadText convenience method to load a text file (of any SSH key format)
// into a string:
$strKey = $sshkey->loadText('../mySshKeys/myKey.txt');

// Next, load the key into the SSH key object.

// If the key is an OpenSSH private key:
// (In actuality, the From* methods will automatically detect the format and load
// the key correctly.  For example, if a PuTTY private key is passed to FromOpenSshPrivateKey,
// it  will still load correctly.)
$success = $sshkey->FromOpenSshPrivateKey($strKey);
if ($success != 1) {
    print $sshkey->LastErrorText . "\n";
}
else {
    print 'Loaded OpenSSH private key.' . "\n";
    exit;
}

// If the key is an OpenSSH public key:
$success = $sshkey->FromOpenSshPublicKey($strKey);
if ($success != 1) {
    print $sshkey->LastErrorText . "\n";
}
else {
    print 'Loaded OpenSSH public key.' . "\n";
    exit;
}

// If the key is a PuTTY private key:
$success = $sshkey->FromPuttyPrivateKey($strKey);
if ($success != 1) {
    print $sshkey->LastErrorText . "\n";
}
else {
    print 'Loaded PuTTY private key.' . "\n";
    exit;
}

// If the key is an RFC 4716 public key:
$success = $sshkey->FromRfc4716PublicKey($strKey);
if ($success != 1) {
    print $sshkey->LastErrorText . "\n";
}
else {
    print 'Loaded RFC 4716 public key.' . "\n";
}


?>