React Native Requires Chilkat v11.0.0+

IKOF Generation Code for Montenegro Fiscalization Service

See more _Miscellaneous_ Examples

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 React Native

import { BinData, Crypt2, Pfx, PrivateKey, Rsa } from '@chilkat/react-native'

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

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

  // Get the private key from a pfx file.
  const pfx = new Pfx();
  try {
    pfx.loadPfxFile('qa_data/pfx/cert_test123.pfx', 'test123');
  } catch {
    console.log(pfx.lastErrorText);
    return;
  }

  const privKey = new PrivateKey();
  try {
    pfx.privateKeyAt(0, privKey);
  } catch {
    console.log(pfx.lastErrorText);
    return;
  }

  // Create IIC signature according to RSASSA-PKCS-v1_5 using SHA256
  const rsa = new Rsa();
  try {
    rsa.usePrivateKey(privKey);
  } catch {
    console.log(rsa.lastErrorText);
    return;
  }

  // PKCS-v1_5 is used by default.
  rsa.encodingMode = 'hex';
  rsa.charset = 'utf-8';
  const hexSig = rsa.signStringENC(concatenatedParams, 'sha256');

  console.log(`Signature value result is: ${hexSig}`);

  // Compute the MD5 hash of the bytes.
  const crypt = new Crypt2();
  crypt.encodingMode = 'hex';
  crypt.hashAlgorithm = 'md5';
  const bd = new BinData();
  bd.appendEncoded(hexSig, 'hex');
  const md5Summary = crypt.hashBdENC(bd);

  console.log(`MD5 summary value is: ${md5Summary}`);
}