What is the Python or MariaDb command that encrypts values in the 'password' attribute of the '_Auth' table using the 'encryption_key' from 'site_config.json'?

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I am preparing a suite of data migration scripts from a legacy system to ErpNext.

There are values in the old system that must be encrypted in ErpNext. I want to avoid entering them manually via the user interface and instead write them directly into the _Auth data table in MariaDb.

Unfortunately I can’t figure out what encryption is used.

My encryption key in site_config.json looks something like this:

Kui59AV7LdZ7WHlscM8-FAKE-9l3sAv6yxBh7kh1RA3qE=

The encrypted result the ‘password’ attribute of the ‘_Auth’ table looks something like this :

gAAAAABeGxrTwncTxegBtBnCa4HVDMIEp3CFGpx80oWBnSxM2KIhRQS-fSa1Ofw0NeV9FbAJ0=

Is the encryption done by Python or by MariaDb. What’s the command?