dl-breadcrumbs__homedl-breadcrumb-item__separatorConfiguration and programmingdl-breadcrumb-item__separatorProgramming with CODESYSdl-breadcrumb-item__separator...dl-breadcrumb-item__separatorCODESYS Development Systemdl-breadcrumb-item__separatorProtecting and Saving Projectsdl-breadcrumb-item__separatorEncrypting Projects with Certificates
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Encrypting Projects with Certificatesdl-permalink__symbolPermalink

Configuring a certificate for project file encryption in a user profile

When a project is encrypted with a certificate, this certificate is needed for decryption to open the project. You can assign this certificate to specific user profiles. To do this, select the certificate from the Windows Certificate Store on the “User” tab of the “Security Screen”.

  1. Double-click _cds_icon_cyber_screen_grey in the status bar or click “View  Security Screen”.

    The “Security Screen” view opens.

  2. In the “User” tab, select the user profile for which the communication will be encrypted. By default, the specified user profile is the one you have used on your computer to sign into Windows. You can also create a new user profile with _cds_icon_security_add.

  3. Click the _cds_icon_cert_store_open button in the “Project file decryption” area.

    The “Certificate Selection” dialog opens.

  4. Select a certificate with a private key from the list “Available certificates in the local Windows Certificate Store”. Certificates with a private key are identified by the _cds_icon_cert_private_key symbol.

  5. Click _cds_icon_arrow_up.

  6. The certificate is added to the upper part of the dialog.

  7. Click “OK” to confirm your selection.

    The selected certificate is displayed in the “Security Screen” in the “Project file decryption” area.

Encrypting a project with a certificate

A project encrypted with a certificate in connection with a user management allows you to restrict access to the project.

  1. Click “Project  Project Settings” and then select the “Security” category.

    The “Project Settings / Security” dialog opens.

  2. Select the “Encryption” option.

    The option fields “Password”, “Dongle”, and “Certificates” are available.

  3. Select the “Encryption” option.

    The certificates available for project encryption are listed in the lower part of the dialog. If no certificate has been specified yet, then click _cds_icon_cert_store_open to select a relevant certificate in the “Certificate Selection” dialog. Then return to the “Project Settings” dialog. Now the certificate is specified for encryption. Now the project can only be edited on computers of users who also have the certificate for file decryption.

Deleting a certificate in the user profile

You delete the certificate in the “Security Screen” view, either directly on the “User” tab or in the “Certificate Selection” dialog. The deletion will follow in the other dialog.

  • Dialog “Security Screen”, tab “User”, “Digital Signature”, or “Project Data Decryption”: Select a certificate and click _cds_icon_delete

  • Dialog “Certificate Selection”: in the “Security Screen” dialog, click _cds_icon_cert_store_open on the “User” tab. In the upper field of the “Certificate Selection” dialog, select the certificate to be deleted and click _cds_icon_delete.

Configuring a certificate for the digital signature in a user profile

To ensure that the project is not only encrypted with a certificate, but also that its authorship and integrity can be verified, you can add a signature to the project:

  1. Double-click _cds_icon_cyber_screen_grey in the status bar or click “View  Security Screen”.

    The “Security Screen” view opens.

  2. In the “User” tab, select the user profile for which the digital signature will be created. By default, the specified user profile is the one you have used on your computer to sign into Windows. You can also create a new user profile with _cds_icon_security_add.

  3. Click the _cds_icon_cert_store_open button in the “Digital signature” area.

    The “Certificate Selection” dialog opens.

  4. Select a certificate with a private key from the list “Available certificates in the local Windows Certificate Store”. Certificates with a private key are identified by the _cds_icon_cert_private_key symbol.

  5. Click _cds_icon_arrow_up.

    The certificate is added to the upper part of the dialog.

  6. Click “OK” to confirm your selection.

    The selected certificate is displayed in the “Security Screen” in the “Digital signature” area.