Encryption (Bluetooth)
Enabling the encryption will result in encrypting the data sent by the logger over Bluetooth Low Energy interface. The encrypted data sent by the logger can only be decrypted by a device with the encryption key.
This feature is useful, if you need to be sure that only the authorised personnel can read the data over Bluetooth interface. Users who do not know the encryption key, will not be able to read the data.
If the logger communication is encrypted, only devices with a proper encryption key can read its measurements (right). Devices without the encryption key are not able to read the data (left)
In order to set the encryption key:
Connect to the logger with Efento mobile application, tap on the three dots in the upper right corner -> “Advanced” -> “Turn encryption on”
Key in the encryption key. Make sure you write it down as you will need to add it in mobile devices that will access the logger data
From now on, the communication is encrypted. You will need to add the encryption key in Efento in order to see the data sent by the logger
In order to switch the encryption off:
Connect to the logger with Efento mobile application, tap on the three dots in the upper right corner -> “Advanced” -> “Turn encryption off”
If the encryption has been turned on, once you try to connect to the logger with Efento mobile application, you will be asked to key in the encryption key. Once you add it, the application will store the encryption key and you will be able to access the logger without adding it again.
Efento mobile application allows you to add up to five default encryption keys. If a logger communication is encrypted with any of the added keys, Efento mobile application will automatically decrypt the data. This is useful for managing a fleet of loggers.
In order to add a default encryption key in Efento mobile application:
Enter the application settings (menu icon in the upper left corner -> “Configuration”)
Select “Default keys”
Press “Add encryption key” button
Add the encryption key and its label
If you want to delete an encryption key:
Enter the application settings (menu icon in the upper left corner -> “Configuration”)
Select “Default keys”
Tap and hold the encryption key you want to remove
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