PHP

Encrypt / Decrypt Secure Strings

See more Encryption Examples

Demonstrates how to use the EncryptSecureENC and DecryptSecureENC methods to encrypt/decrypt secure strings. These methods were added in Chilkat v9.5.0.71 (released January 2018). Chilkat2 PHP

<?php

use Chilkat2\Crypt2;
use Chilkat2\SecureString;

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

// Load the secure string with some text.
$secStr1 = new SecureString();
try {
    $secStr1->LoadFile('qa_data/txt/helloWorld.txt', 'utf-8');
} catch (\Chilkat2\Exception $e) {
    echo "Failed to load helloWorld.txt\n";
    exit;
}

$crypt = new Crypt2();

$crypt->CryptAlgorithm = 'aes';
$crypt->CipherMode = 'cbc';
$crypt->KeyLength = 128;
$crypt->SetEncodedKey('000102030405060708090A0B0C0D0E0F', 'hex');
$crypt->SetEncodedIV('000102030405060708090A0B0C0D0E0F', 'hex');
$crypt->EncodingMode = 'base64';

// Return the base64 encoded encrypted contents of secStr1.
$encryptedStr = $crypt->EncryptSecureENC($secStr1);
echo 'Encrypted string: ', $encryptedStr, "\n";

// Output:
// Encrypted string: qiq+IFhcjTkEIkZyf31V/g==

// Decrypt to secStr2:
$secStr2 = new SecureString();
$crypt->DecryptSecureENC($encryptedStr, $secStr2);

// Access the contents of secStr2
echo 'Decrypted string: ', $secStr2->Access(), "\n";

// Output:
// Decrypted string: Hello World!