Encrypted and signed applications

An application can be encrypted and signed in order to protect a running application in a PLC and to protect a configured project. How to set-up the user management, the communication and the boot application in order to prevent unauthorized access is explained in an ‎⮫ application note.

Aim: You want to encrypt boot applications, downloads, and online changes with a certificate to make sure that the application on the controller cannot be exchanged at will. To do this, you need to download a corresponding certificate of the type "Encrypted Application" from the controller and install it to the "Windows Certificate Store" of your computer. This certificate is required for all development environments that need to make changes to the application on the controller. For example, if this application has to be downloaded from another computer, then the certificate also has to exist on this computer.

For more information see: ⮫ Security and ⮫ Security Screen