dovecot - Feb 2018 - VarExpandCrypt plugin usecase

Hai,
I found VarExpandCrypt plugin but not sure the usecase? Somewhere is  
more documentation for it?
https://wiki2.dovecot.org/Plugins/VarExpandCrypt


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> On February 9, 2018 at 3:40 AM tai74 at vfemail.net wrote:
> 
> 
> 
> Hai,
> I found VarExpandCrypt plugin but not sure the usecase? Somewhere is  
> more documentation for it?
> https://wiki2.dovecot.org/Plugins/VarExpandCrypt
> 
Hi!

var_expand_crypt plugin can be used for decrypting/encrypting variables.

It's most common usecase would be to decrypt user credentials encrypted
using reversible encryption (a.k.a. obfuscation).

It can be used for other purposes too, like transmitting information from proxy
to backend encrypted without using SSL.

Aki