Title: Warning: openssl_encrypt()
Last modified: March 10, 2018

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# Warning: openssl_encrypt()

 *  Resolved [bartosz.petrynski](https://wordpress.org/support/users/bartoszpetrynski/)
 * (@bartoszpetrynski)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/warning-openssl_encrypt/)
 * When I initialise payment via Transferuj.pl I got warning message:
 * Warning: openssl_encrypt(): Using an empty Initialization Vector (iv) is potentially
   insecure and not recommended in /wp-content/plugins/woocommerce-transferujpl-
   payment-gateway/tpayWoocommerceGateway.php on line 563
 * Plugin version 2.5.8.

Viewing 6 replies - 1 through 6 (of 6 total)

 *  Plugin Author [tpay.com](https://wordpress.org/support/users/transferujpl/)
 * (@transferujpl)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10064433)
 * The warning has been fixed, please reinstall the module.
 *  [jurasjo](https://wordpress.org/support/users/jurasjo/)
 * (@jurasjo)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10149054)
 * `PHP Warning: openssl_encrypt(): Using an empty Initialization Vector (iv) is
   potentially insecure and not recommended in .../wp-content/plugins/woocommerce-
   transferujpl-payment-gateway/tpayWoocommerceGateway.php on line 563`
 * PHP 7.1.12 and plugin version 2.5.8 – warning occurs.
 *  Plugin Author [tpay.com](https://wordpress.org/support/users/transferujpl/)
 * (@transferujpl)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10149423)
 * [@jurasjo](https://wordpress.org/support/users/jurasjo/) please reinstall your
   module, because this problem is fixed in current version.
 *  [jurasjo](https://wordpress.org/support/users/jurasjo/)
 * (@jurasjo)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10149707)
 * Hi
 * What do You mean by saying: reinstall?
    Current version is 2.5.8 and I use the
   newest one.
 *  Plugin Author [tpay.com](https://wordpress.org/support/users/transferujpl/)
 * (@transferujpl)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10149719)
 * [@jurasjo](https://wordpress.org/support/users/jurasjo/) by reinstallation we
   mean to disable, remove and install module again from WordPress repository.
    
   There was probably some errors in updating the module source code.
 *  [jurasjo](https://wordpress.org/support/users/jurasjo/)
 * (@jurasjo)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10149720)
 * Ok.THX. I will try.

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘Warning: openssl_encrypt()’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/woocommerce-transferujpl-payment-
   gateway_e8eef5.svg)
 * [Tpay Payment Gateway for WooCommerce - tpay.com](https://wordpress.org/plugins/woocommerce-transferujpl-payment-gateway/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-transferujpl-payment-gateway/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/woocommerce-transferujpl-payment-gateway/)
 * [Active Topics](https://wordpress.org/support/plugin/woocommerce-transferujpl-payment-gateway/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-transferujpl-payment-gateway/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woocommerce-transferujpl-payment-gateway/reviews/)

 * 6 replies
 * 3 participants
 * Last reply from: [jurasjo](https://wordpress.org/support/users/jurasjo/)
 * Last activity: [8 years, 1 month ago](https://wordpress.org/support/topic/warning-openssl_encrypt/#post-10149720)
 * Status: resolved