(PHP ActiveX) PKCS7 Decrypt MIME

Loads a PKCS7 encrypted MIME file and decrypts. The cert and private key used for decryption is loaded from a PFX file.

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

$mime = new COM("Chilkat_9_5_0.Mime");

$success = $mime->UnlockComponent('Anything for 30-day trial.');
if ($success == 0) {
    print $mime->LastErrorText . "\n";
    exit;
}

//  Load the MIME
$success = $mime->LoadMimeFile('encryptedMime.txt');
if ($success == 0) {
    print $mime->LastErrorText . "\n";
    exit;
}

//  The AddPfxSourceFile and/or AddPfxSourceData
//  methods may be called one or more times (one per PFX)
//  to add sources from which the MIME component will
// search for certificates and private keys when decrypting.
$pfxPassword = 'myPassword';
$success = $mime->AddPfxSourceFile('myCertAndPrivateKey.pfx',$pfxPassword);
if ($success == 0) {
    print $mime->LastErrorText . "\n";
    exit;
}

//  Decrypt...
$success = $mime->Decrypt();
if ($success == 0) {
    print $mime->LastErrorText . "\n";
    exit;
}

//  Display the decrypted MIME:
print $mime->getMime() . "\n";

?>