Adding device certificates
To add a device certificate the project password shall be set first. Therefore, if a project is not secured with a password when adding a device certificate, a dialog appears to define it. The device certificates can be added in the ETS project via the following ways:
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Add a certificate via... |
1. ETS Dashboard
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2. Sidebar (from the Device Properties)
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3. Paste (Adding of certificates can be skipped) |
4. During device download
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| a | ...that does not exist |
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| b | ...that exists and is not linked to a device |
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| c | ...that exists and is linked to a device |
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Can be cancelled or continued plain |
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...with same serial number and different key (serial number not linked to any device) * Certificate error created by manufacturer |
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Can be cancelled or continued plain |
In all cases, dialog appears in which it is possible to manually add the device certificate by either:
- Typing it (22 characters*)
- Using a camera to scan the QR code format of the certificate (it possible to scan multiple, one after the other)
* The dialog input format is Base32, according to the specification e.g. the 22 characters of an certificate requires 36 Base32 characters (22*8/5 = 36), spread over six input blocks of six characters. Entering of 0 and 1 as an Base32 character is not possible (to prevent a mix- up with capital "O" or "I")
Backing up Certificates
Certificates (or, more accurately, at least the factory key) must be backed up in addition to the ETS project. The form used for this depends on how these are provided by the KNX device manufacturer (e.g. in printable form in a folder).
- If a project, which contained KNX Secure devices is lost, then the ones saved there and those currently used by ETS as well as the factory keys of devices are also lost. For a reconfiguration, (KNX Secure) devices must be reset locally using “Master Reset” (just as for normal projects without KNX Secure devices). When this takes place, the original factory key once again becomes active for KNX Secure devices (previously, these were keys provided by ETS).
- The original factory key is then (again) used for re-downloading.