EPM Automate vs REST encryption

This is a copy of the same question in the "Planning and Budgeting" community (EPM Automate vs REST encryption ). Not sure why we have separate MOSC version, but just to be sure more people see it...

I have an automation script in PowerShell that uses both EPM Automate ("EA") and the REST calls for various steps in the process. Both need login ability to EPBCS, and I am encrypting password into files. But currently I need to do it in two places, in two different ways - for EA I am using its "encrypt" command to create "pwd.epw" file, and for the REST calls I open POSTMAN, enter credentials under Basic Authentication method, and after refreshing request I copy resulting encrypted string into appropriate control file (xml).