(PHP ActiveX) IKOF Generation Code for Montenegro Fiscalization Service

Demonstrates computing the IKOF MD5 summary value as described in section 4.3 of this document: https://poreskauprava.gov.me/ResourceManager/FileDownload.aspx?rId=416042&rType=2

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.

$concatenatedParams = '12345678|2019-06-12T17:05:43+02:00|9952|bb123bb1231|cc123cc1231|ss123ss123|199.01';

// Get the private key from a pfx file.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Pfx')
$pfx = new COM("Chilkat.Pfx");
$success = $pfx->LoadPfxFile('qa_data/pfx/cert_test123.pfx','test123');
if ($success != 1) {
    print $pfx->LastErrorText . "\n";
    exit;
}

// privKey is a Chilkat.PrivateKey
$privKey = $pfx->GetPrivateKey(0);
if ($pfx->LastMethodSuccess == 0) {
    print $pfx->LastErrorText . "\n";
    exit;
}

// Create IIC signature according to RSASSA-PKCS-v1_5 using SHA256
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Rsa')
$rsa = new COM("Chilkat.Rsa");
$success = $rsa->ImportPrivateKeyObj($privKey);
if ($success == 0) {
    print $rsa->LastErrorText . "\n";
    exit;
}

// PKCS-v1_5 is used by default.
$rsa->EncodingMode = 'hex';
$rsa->Charset = 'utf-8';
$hexSig = $rsa->signStringENC($concatenatedParams,'sha256');

print 'Signature value result is: ' . $hexSig . "\n";

// Compute the MD5 hash of the bytes.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2')
$crypt = new COM("Chilkat.Crypt2");
$crypt->EncodingMode = 'hex';
$crypt->HashAlgorithm = 'md5';
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
$bd = new COM("Chilkat.BinData");
$bd->AppendEncoded($hexSig,'hex');
$md5_summary = $crypt->hashBdENC($bd);

print 'MD5 summary value is: ' . $md5_summary . "\n";


?>