PHP

Load a Private Key from PEM Text

Demonstrates the Chilkat PrivateKey.LoadPem method, which loads a private key from PEM text. The only argument is the PEM string. It has no password argument, so it cannot load an encrypted PEM — use LoadEncryptedPem for that.

Background: PEM is the Base64 text format (delimited by -----BEGIN----- lines) that most tooling uses for keys. This method is for the plain, unencrypted case where the key material sits in the clear inside the PEM — convenient, but it means the file itself is the only thing protecting the key. When the PEM is password-protected (a BEGIN ENCRYPTED PRIVATE KEY block or a legacy encrypted header), reach for the Encrypted loader instead.

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<?php

use Chilkat2\PrivateKey;

// Demonstrates the PrivateKey.LoadPem method, which loads a private key from PEM text.  The only
// argument is the PEM string.  This method has no password argument, so it cannot load an
// encrypted PEM -- use LoadEncryptedPem for that.

$privKey = new PrivateKey();

// The PEM text of an unencrypted private key.
$pemText = "-----BEGIN PRIVATE KEY-----\nMIIEvAIBADANBgkq...\n-----END PRIVATE KEY-----";

try {
    $privKey->LoadPem($pemText);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'Loaded a ', $privKey->KeyType, " private key.\n";