SQL Server itself has means to store Windows credentials, see CREATE CREDENTIAL.
I would suggest using Windows authentication in your application. If you do that, then you can set permissions on the shared folder and in the database and avoid storing credentials of any sort in the database.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.