(PHP Extension) SSH Key Fingerprint

Generates a fingerprint for an SSH key.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$key = new CkSshKey();

// Load an SSH key from an encrypted OpenSSH-formatted private key:
$key->put_Password('secret');

// First load the PEM into a string:
$keyStr = $key->loadText('privkey_openssh_encrypted.pem');

// Import into the SSH key object:
$success = $key->FromOpenSshPrivateKey($keyStr);
if ($success != true) {
    print $key->lastErrorText() . "\n";
    exit;
}

// Generate the fingerprint:

$fingerprint = $key->genFingerprint();

print $fingerprint . "\n";

// A sample fingerpring looks like this:
// ssh-dss 2048 d0:5f:f7:d6:49:60:7b:50:19:f4:41:59:d4:1f:61:7

?>