Encrypting pbiPassword in PowerBIEmbedded_AppOwnsData

Hopefully the subject line says it all.

Once upon a time I did a ton of work in .NET.....a LONG time ago  🙂

Really dumb question - how could I encrypt the password and username in the Web.cofig file?

Thanks

<MasterUser>
<!-- Note: Do NOT leave your credentials on code. Save them in secure place. -->
<add key="pbiUsername" value="[email protected]" />
<add key="pbiPassword" value="abcdefghijk" />
</MasterUser>