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If you want to upgrade an existing deployment to use Encryption of Secrets, the steps are:
1.
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Your secrets are encrypted using a master key. This master key is a file stored on your server that contains a 256 alpha-numeric characters. This file must be secured on your server so that only the FirstWave system services have access to the master key.
The master key is generated automatically when you install your first FirstWave product, or when you enable Encryption of Secrets.