[Dovecot] Accessing plain text password from memory

Is there a way to retrieve the client's password in plain text from memory ?

I don't store the password in plain text in my postgreSQL but I need it when the client is connected to make crypto computation.

If I write a plugin to do the job, how could I retrieve the plain text password from master ?

Thank you for your help,

Regards, Stan.

Stanislas SABATIER s.sabatier@pobox.com