PHP Extension

Load a Private Key from a File (Any Format)

Demonstrates the Chilkat PrivateKey.LoadAnyFormatFile method, which loads a private key from a file by inspecting its contents. The first argument is the file path and the second is the password (used if the detected key is encrypted).

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Background: This is the most convenient loader of all — point it at a key file whose format you do not know and it detects and loads it, whether PKCS #1/#8, encrypted PKCS #8, PEM, JWK, XML, or a Microsoft format. It is the pragmatic default for applications that accept keys from users or varied sources; use a format-specific loader only when you want to enforce a particular expected format.

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PHP Extension

<?php

include("chilkat.php");

$success = false;

//  Demonstrates the PrivateKey.LoadAnyFormatFile method, which loads a private key from a file by
//  inspecting its contents.  The 1st argument is the file path and the 2nd is the password (used
//  if the detected key is encrypted).

$privKey = new CkPrivateKey();

//  The key password is not hard-coded in a real application; obtain it from an interactive
//  prompt, environment variable, or a secrets vault.
$password = 'myKeyPassword';

//  This is the most convenient loader when the file's exact format is unknown: Chilkat inspects
//  the content and handles PKCS #1/#8, encrypted PKCS #8, PEM, JWK, XML, Microsoft formats, etc.
$success = $privKey->LoadAnyFormatFile('qa_data/some_private_key',$password);
if ($success == false) {
    print $privKey->lastErrorText() . "\n";
    exit;
}

print 'Loaded a ' . $privKey->keyType() . ' private key.' . "\n";

?>