protected function encrypt($data, $key)
    {
        $keySize = openssl_cipher_iv_length(static::CRYPT_MODE);
        $padding = $keySize - (mb_strlen($data, '8bit') % $keySize);
        /** @noinspection CryptographicallySecureRandomnessInspection */
        $iv   = openssl_random_pseudo_bytes($keySize);
        $key  = $this->generateKey($key);
        $data .= str_repeat(chr($padding), $padding);

        // add in our IV and base64 encode the data
        $data = base64_encode(
            $iv
            . openssl_encrypt(
                $data, static::CRYPT_MODE, $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING, $iv
            )
        );

        return $data;
    }
protected function encrypt($data, $key)
    {
        $keySize = openssl_cipher_iv_length(static::CRYPT_MODE);
        $padding = $keySize - (mb_strlen($data, '8bit') % $keySize);
        /** @noinspection CryptographicallySecureRandomnessInspection */
        $iv   = openssl_random_pseudo_bytes($keySize);
        $key  = $this->generateKey($key);
        $data .= str_repeat(chr($padding), $padding);

        // add in our IV and base64 encode the data
        $data = base64_encode(
            $iv
            . openssl_encrypt(
                $data, static::CRYPT_MODE, $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING, $iv
            )
        );

        return $data;
    }
protected function encrypt ( $ data , $ key ) { $ keySize = openssl_cipher_iv_length ( static :: CRYPT_MODE ) ; $ padding = $ keySize - ( mb_strlen ( $ data , '8bit' ) % $ keySize ) ; /** @noinspection CryptographicallySecureRandomnessInspection */ $ iv = openssl_random_pseudo_bytes ( $ keySize ) ; $ key = $ this -> generateKey ( $ key ) ; $ data .= str_repeat ( chr ( $ padding ) , $ padding ) ; // add in our IV and base64 encode the data $ data = base64_encode ( $ iv . openssl_encrypt ( $ data , static :: CRYPT_MODE , $ key , OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING , $ iv ) ) ; return $ data ; }
Encrypt the given data.

@param string $data Session data to encrypt.
@param string $key

@return string Encrypted data.
Encrypt the given data .