Thank you for pointing me to SQlite! Upon reading for encryption libraries supporting both FPC 2.4.4 and FPC 3.0.0, I encountered DCPcrypt, LockBox3, and Delphi Encryption Compendium.
I will be using DCPcrypt for hashing (creates username and password hash upon registering, then compares upon login) and for strongly encrypting other data.
As for what you said, SQLite has extentions such as SQLiteCipher and wxSQLite3, though I am willing to encrypt date before writing in exchange for stronger encryption. Will see how it goes.
