feat(classes) PS 1.5-1.7+ Cypher

[lea-BMS]

Provides different stubs for PrestaShop cypher classes

[lea-BMS]

Sample use-case:

/**
 * Get cross-version compatible cypher class
 *
 * @return Blowfish|PhpEncryption|Rijndael
 */
function getCipher()
{
    if (version_compare(_PS_VERSION_, '1.7', '>=') &&
        defined('_NEW_COOKIE_KEY_')) {
        return new PhpEncryption(_NEW_COOKIE_KEY_);
    } else {
        if (!defined('_RIJNDAEL_KEY_')) {
            return new Blowfish(_COOKIE_KEY_, _COOKIE_IV_);
        }
        return new Rijndael(_RIJNDAEL_KEY_, _RIJNDAEL_IV_);
    }
}

$secret = getCypher->encrypt('foo bar baz cuux');
echo getCypher->decrypt($secret);