(PHP ActiveX) Example: Crypt2.ClearEncryptCerts method

Demonstrates how to call the ClearEncryptCerts method.

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

$crypt = new COM("Chilkat.Crypt2");

// Tell the crypt object to use 3 certificates.
// Do this by calling AddEncryptCert for each certificate.

$cert1 = new COM("Chilkat.Cert");
// ...
// Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
// ...
$crypt->AddEncryptCert($cert1);

$cert2 = new COM("Chilkat.Cert");
// ...
$crypt->AddEncryptCert($cert2);

$cert3 = new COM("Chilkat.Cert");
// ...
$crypt->AddEncryptCert($cert3);

// Params for public-key encryption to create PKCS7 enveloped-data
$crypt->CryptAlgorithm = 'pki';
$crypt->Pkcs7CryptAlg = 'aes';
$crypt->KeyLength = 256;
$crypt->OaepHash = 'sha256';
$crypt->OaepPadding = 1;

$bd = new COM("Chilkat.BinData");
// ...
$success = $crypt->EncryptBd($bd);

// Let's say we now want to encrypt something else with different certs..
// First clear the encryption certs.
$crypt->ClearEncryptCerts();

$cert4 = new COM("Chilkat.Cert");
// ...
$crypt->AddEncryptCert($cert4);

$cert5 = new COM("Chilkat.Cert");
// ...
$crypt->AddEncryptCert($cert5);

// ...
// ...

// Encrypt using cert4 and cert5.
$success = $crypt->EncryptBd($bd);

?>