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PHP

AddDetachedSignaturePk

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Demonstrates how to add a detached signature using a certifcate and it's corresponding private key. The easiest way of doing it is when both the certificate and private key are contained together within a PFX (.pfx or .p12) file. This example demonstrates how to use the certificate and its corresponding private key when they are stored in separate files -- a .cer for the certificate, and a .pem for the private key.

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Chilkat2 PHP
<?php

use Chilkat2\Cert;
use Chilkat2\Mime;
use Chilkat2\PrivateKey;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$mime = new Mime();

// Load the certificate from a .cer file.
$cert = new Cert();
try {
    $cert->LoadFromFile('aaworkarea/myCert.cer');

    // Load the private key from an encrypted PEM file.
    // (A private key can be loaded from other file formats also..)
    $privKey = new PrivateKey();
    $privKey->LoadEncryptedPemFile('aaworkarea/myPrivateKey.pem', 'myPassword');

    $mime->SetBodyFromPlainText('This is the plain-text MIME body.');

    // Sign the MIME (adds a PKCS7 detached signature)
    $mime->AddDetachedSignaturePk($cert, $privKey);

    // Save the S/MIME to a file.
    $mime->SaveMime('aaworkarea/signedMime.txt');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "success!\n";