JavaScript

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. JavaScript

var success = false;

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

var crypt = new CkCrypt2();

crypt.CryptAlgorithm = "aes";
crypt.CipherMode = "cbc";
crypt.KeyLength = 128;
crypt.PaddingScheme = 0;

var ivHex = "000102030405060708090A0B0C0D0E0F";
crypt.SetEncodedIV(ivHex,"hex");

var keyHex = "00010203040506071011121314151617";
crypt.SetEncodedKey(keyHex,"hex");

var dataFile = "qa_data/zips/HBIQ040615300005.ZIP";
var outFile = "qa_output/HBIQ040615300005.enc";
var outFile2 = "qa_output/HBIQ040615300005.ZIP";

success = crypt.CkEncryptFile(dataFile,outFile);
success = crypt.CkDecryptFile(outFile,outFile2);

var fac = new CkFileAccess();
var bEqual = fac.FileContentsEqual(dataFile,outFile2);
if (bEqual !== true) {
    console.log("Decrypted file not equal to the original.");
}
else {
    console.log("Success.");
}