(PHP ActiveX) Duplicate openssl smime -decrypt -in some_file.dat.enc -binary -inform DER -inkey private.key -out some_file.dat

Demonstrates how to decrypt binary DER that was encrypted using the following openssl command:

openssl smime -encrypt -binary -aes-256-cbc -in some_file.dat -out some_file.dat.enc -outform DER cert.crt

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

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

// Duplicates the following openssl command:
// openssl smime -decrypt -in hello.txt.enc -binary -inform DER -inkey private.key -out hello.txt

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert')
$cert = new COM("Chilkat.Cert");
$success = $cert->LoadFromFile('qa_data/openssl/EE.cer');
if ($success == 0) {
    print $cert->LastErrorText . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
$bd = new COM("Chilkat.BinData");
$success = $bd->LoadFile('qa_data/openssl/EE.key');
// Assuming success..

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.PrivateKey')
$privKey = new COM("Chilkat.PrivateKey");
$success = $privKey->LoadAnyFormat($bd,'');
if ($success == 0) {
    print $privKey->LastErrorText . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2')
$crypt = new COM("Chilkat.Crypt2");
$success = $crypt->SetDecryptCert2($cert,$privKey);
if ($success == 0) {
    print $crypt->LastErrorText . "\n";
    exit;
}

$crypt->CryptAlgorithm = 'PKI';
$success = $crypt->CkDecryptFile('qa_data/openssl/hello.txt.enc','qa_output/hello.txt');
if ($success == 0) {
    print $crypt->LastErrorText . "\n";
    exit;
}

print 'Success.' . "\n";

?>