Shitou's dashboard

How to import configuration/rules from 4.3 (unencrypted) into 4.6 (expected XML with checksum)?

The export of 4.3 generates a standard XML config file.
But in 4.6 the Import expects an XML file containing a checksum at the beginning of the file content.
searched the net and found no post, no tool allowing to generate a checksum.

Dear support, thank you to give us the ability to upgrade to 4.6 and import the rules. A conversion tool would be appreciated and/or allow the Import of older version's configuration.

thanks you