Update docs/en/operations/server-configuration-parameters/settings.md

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## encryption {#server-settings-encryption} ## encryption {#server-settings-encryption}
It configures a command to obtain a key to be used by [encryption codecs](../../sql-reference/statements/create/table.md#create-query-encryption-codecs). Key (or keys) should be written in environment variables or set in the configuration file. Configures a command to obtain a key to be used by [encryption codecs](../../sql-reference/statements/create/table.md#create-query-encryption-codecs). Key (or keys) should be written in environment variables or set in the configuration file.
Keys can be hex or string with the length equal to 16 bytes. Keys can be hex or string with the length equal to 16 bytes.