React Native

Encrypt / Decrypt a File and Verify it has not Changed

See more Encryption Examples

Demonstrates how to encrypt and decrypt a file, and verify it has not changed. React Native

import { Crypt2, FileAccess } from '@chilkat/react-native'

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

  const crypt = new Crypt2();

  crypt.cryptAlgorithm = 'aes';
  crypt.cipherMode = 'cbc';
  crypt.keyLength = 128;
  crypt.paddingScheme = 0;

  const ivHex = '000102030405060708090A0B0C0D0E0F';
  crypt.setEncodedIV(ivHex, 'hex');

  const keyHex = '00010203040506071011121314151617';
  crypt.setEncodedKey(keyHex, 'hex');

  const dataFile = 'qa_data/zips/HBIQ040615300005.ZIP';
  const outFile = 'qa_output/HBIQ040615300005.enc';
  const outFile2 = 'qa_output/HBIQ040615300005.ZIP';

  await crypt.ckEncryptFileAsync(dataFile, outFile);
  await crypt.ckDecryptFileAsync(outFile, outFile2);

  const fac = new FileAccess();
  const bEqual = fac.fileContentsEqual(dataFile, outFile2);
  if (!bEqual) {
    console.log('Decrypted file not equal to the original.');
  } else {
    console.log('Success.');
  }
}