encryption error

Where is this “mytmoney” plugin from? I can’t find it. Basically, you need to contact its developers.

Please find below the full code.

<?php

/**
 
 *
 * Copyright: (c) 2015-2016 SkyVerge, Inc. ([email protected]) and WooCommerce
 *

 * This offline gateway forks the WooCommerce core "Cheque" payment gateway to create another offline payment method.
 */
 
defined( 'ABSPATH' ) or exit;

// Make sure WooCommerce is active
if ( ! in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) ) {
	return;
}

/**
 * Add the gateway to WC Available Gateways
 * 
 * @since 1.0.0
 * @param array $gateways all available WC gateways
 * @return array $gateways all WC gateways + offline gateway
 */
function wc_offline_add_to_gateways( $gateways ) {
	$gateways[] = 'WC_Gateway_Offline';
	return $gateways;
}
add_filter( 'woocommerce_payment_gateways', 'wc_offline_add_to_gateways' );

/**
 * Adds plugin page links
 * 
 * @since 1.0.0
 * @param array $links all plugin links
 * @return array $links all plugin links + our custom links (i.e., "Settings")
 */
function wc_offline_gateway_plugin_links( $links ) {

	$plugin_links = array(
		'<a href="' . admin_url( 'admin.php?page=wc-settings&tab=checkout&section=offline_gateway' ) . '">' . __( 'Configure', 'wc-gateway-offline' ) . '</a>'
	);

	return array_merge( $plugin_links, $links );
}
add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), 'wc_offline_gateway_plugin_links' );

/**
 * Offline Payment Gateway
 *
 * Provides an Offline Payment Gateway; mainly for testing purposes.
 * We load it later to ensure WC is loaded first since we're extending it.
 *
 * @class 		WC_Gateway_Offline
 * @extends		WC_Payment_Gateway
 * @version		1.0.0
 * @package		WooCommerce/Classes/Payment
 * @author 		SkyVerge
 */
add_action( 'plugins_loaded', 'wc_offline_gateway_init', 11 );

function wc_offline_gateway_init() {

	class WC_Gateway_Offline extends WC_Payment_Gateway {

		/**
		 * Constructor for the gateway.
		 */
		public function __construct() {
	  
			$this->id                 = 'offline_gateway';
			$this->icon               = apply_filters('woocommerce_offline_icon', '');
			$this->has_fields         = false;
			$this->method_title       = __( 'Offline', 'wc-gateway-offline' );
			$this->method_description = __( 'Allows offline payments. Very handy if you use your cheque gateway for another payment method, and can help with testing. Orders are marked as "on-hold" when received.', 'wc-gateway-offline' );
		  
			// Load the settings.
			$this->init_form_fields();
			$this->init_settings();
		  
			// Define user set variables
			$this->title        = $this->get_option( 'title' );
			$this->description  = $this->get_option( 'description' );
			$this->instructions = $this->get_option( 'instructions', $this->description );
		  
			// Actions
			add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
			add_action( 'woocommerce_thankyou_' . $this->id, array( $this, 'thankyou_page' ) );
		  
			// Customer Emails
			add_action( 'woocommerce_email_before_order_table', array( $this, 'email_instructions' ), 10, 3 );
		}
	
	
		/**
		 * Initialize Gateway Settings Form Fields
		 */
		public function init_form_fields() {
	  
			$this->form_fields = apply_filters( 'wc_offline_form_fields', array(
		  
				'enabled' => array(
					'title'   => __( 'Enable/Disable', 'wc-gateway-offline' ),
					'type'    => 'checkbox',
					'label'   => __( 'Enable Offline Payment', 'wc-gateway-offline' ),
					'default' => 'yes'
				),
				
				'title' => array(
					'title'       => __( 'Title', 'wc-gateway-offline' ),
					'type'        => 'text',
					'description' => __( 'This controls the title for the payment method the customer sees during checkout.', 'wc-gateway-offline' ),
					'default'     => __( 'Myt Money', 'wc-gateway-offline' ),
					'desc_tip'    => true,
				),
				
				'description' => array(
					'title'       => __( 'Description', 'wc-gateway-offline' ),
					'type'        => 'textarea',
					'description' => __( 'Payment method description that the customer will see on your checkout.', 'wc-gateway-offline' ),
					'default'     => __( 'Myt Money', 'wc-gateway-offline' ),
					'desc_tip'    => true,
				),
				
				'instructions' => array(
					'title'       => __( 'Instructions', 'wc-gateway-offline' ),
					'type'        => 'textarea',
					'description' => __( 'Instructions that will be added to the thank you page and emails.', 'wc-gateway-offline' ),
					'default'     => '',
					'desc_tip'    => true,
				),
			) );
		}
	
	
		/**
		 * Output for the order received page.
		 */
		public function thankyou_page() {
			if ( $this->instructions ) {
				echo wpautop( wptexturize( $this->instructions ) );
			}
		}
	
	
		/**
		 * Add content to the WC emails.
		 *
		 * @access public
		 * @param WC_Order $order
		 * @param bool $sent_to_admin
		 * @param bool $plain_text
		 */
		public function email_instructions( $order, $sent_to_admin, $plain_text = false ) {
		
			if ( $this->instructions && ! $sent_to_admin && $this->id === $order->payment_method && $order->has_status( 'on-hold' ) ) {
				echo wpautop( wptexturize( $this->instructions ) ) . PHP_EOL;
			}
		}
	
	
		/**
		 * Process the payment and return the result
		 *
		 * @param int $order_id
		 * @return array
		 */
		public function process_payment( $order_id ) {
			
global $woocommerce;

	
	// Get this Order's information so that we know
	// who to charge and how much
	$customer_order = new WC_Order( $order_id );
	
	// Are we testing right now or is it a real transaction
	$environment = ( $this->environment == "yes" ) ? 'TRUE' : 'FALSE';

	// Decide which URL to post to
	$environment_url = ( "FALSE" == $environment ) ? 'https://transportation.local/wordpress/redirect': 'https://transportation.local/wordpress/redirect';
	
			$appID="1000000661";
			$merTradeNo = 1234;			
			$paymentType="S";
			$publicKey="MIICIy9pMNhp1HKbZeRuwzPGFY9ch0xeLZqy5T2owQxki19tDzJICB5JMyBz1rNhaRc4ZYGM6Qxg3hOqZLQSbgM5o37WNjbmlPk5vtGRKBcmPbdamef1iEjWGqZth+bJUbG3zjkpyPOgtR1++/dCRi0meBtW9BXecmYktqPaUROgKmH8DJ2/alMRSiUxR9mWJTPJgmmeHYBMWTkKeDLcl2Rhlriz5hB8SvGLOqBsCAwEAAQ==";
			$apiKey="BH+0NAQRMiQyvF1KvOoZlA==";
			
			$notifyURL="https://www.myt.mu";
			$returnURL="https://www.myt.mu";
			$remark="This is a test payment";
			$lang="en";
	// This is where the fun stuff begins
			$payload = array(
			"totalPrice"           	=> $totalAmount_CNY,
			"totalPrice"			=> $customer_order->order_total
			);
			
	//encrypt payload
	$payload=json_encode($payload);
			$rsa= new phpseclib\Crypt\RSA();
			$rsa->setHash('sha1');
			$rsa->setMGFHash('sha1');
			$rsa->setEncryptionMode(RSA::ENCRYPTION_OAEP);
			$rsa->setPublicKeyFormat(RSA::PUBLIC_FORMAT_PKCS1);
			$rsa->loadKey($publickey);
			$encryptedPayload=base64_encode($rsa->encrypt($payload));
			$signaturedata="appID&merTradeNo=$merTradeNo$merTradeNo&payload=$encryptedPayload&paymentType=$paymentType";
			$sign=base64_encode(hash_hmac('sha512',$signaturedata,$apiKey,true));

	// Send this payload to Authorize.net for processing
	$response = wp_remote_post( $environment_url, array(
		'method'    => 'POST',
		'body'      => http_build_query( $sign ),
		'timeout'   => 90,
		'sslverify' => false,
	) );

	if ( is_wp_error( $response ) ) 
		throw new Exception( __( 'We are currently experiencing problems trying to connect to this payment gateway. Sorry for the inconvenience.', 'spyr-authorizenet-aim' ) );

	if ( empty( $response['body'] ) )
		throw new Exception( __( 'Authorize.net\'s Response was empty.', 'spyr-authorizenet-aim' ) );
		
	// Retrieve the body's resopnse if no errors found
	$response_body = wp_remote_retrieve_body( $response );

	// Parse the response into something we can read
	foreach ( preg_split( "/\r?\n/", $response_body ) as $line ) {
		$resp = explode( "|", $line );
	}

	// Get the values we need
	$r['response_code']             = $resp[0];
	$r['response_sub_code']         = $resp[1];
	$r['response_reason_code']      = $resp[2];
	$r['response_reason_text']      = $resp[3];

	// Test the code to know if the transaction went through or not.
	// 1 or 4 means the transaction was a success
	if ( ( $r['response_code'] == 1 ) || ( $r['response_code'] == 4 ) ) {
		// Payment has been successful
		$customer_order->add_order_note( __( 'Authorize.net payment completed.', 'spyr-authorizenet-aim' ) );
											 
		// Mark order as Paid
		$customer_order->payment_complete();

		// Empty the cart (Very important step)
		$woocommerce->cart->empty_cart();

		// Redirect to thank you page
		return array(
			'result'   => 'success',
			'redirect' => $this->get_return_url( $customer_order ),
		);
	} else {
		// Transaction was not succesful
		// Add notice to the cart
		wc_add_notice( $r['response_reason_text'], 'error' );
		// Add note to the order for your reference
		$customer_order->add_order_note( 'Error: '. $r['response_reason_text'] );
	}

}
		
		//function below calculates total and sets in a variable. Added on 1 July 2022 @roshanbi
		protected function calculate_totals() {
    $this->set_total( 'total', round( $this->get_total( 'items_total', true ) + $this->get_total( 'fees_total', true ) + $this->get_total( 'shipping_total', true ) + wc_round_tax_total( array_sum( $this->get_merged_taxes( true ) ), 0 ), 0 ) );
    $this->cart->set_total_tax( array_sum( $this->get_merged_taxes( false ) ) );
 
    // Allow plugins to hook and alter totals before final total is calculated.
    if ( has_action( 'woocommerce_calculate_totals' ) ) {
        do_action( 'woocommerce_calculate_totals', $this->cart );
    }
 
    // Allow plugins to filter the grand total, and sum the cart totals in case of modifications.
    $this->cart->set_total( max( 0, apply_filters( 'woocommerce_calculated_total', $this->get_total( 'total' ), $this->cart ) ) );
}

	
  } // end \WC_Gateway_Offline class
}

Sure, will check with them.

Regards,

Roshan

I did not need to see that. I asked a simple question. Anyhow, you’re using a commercial/premium theme/plugin, so please use their official support channel. We feel they are best equipped to support their products.

https://www.skyverge.com/contact/

Commercial products are not supported in these forums.