Left to do:

• Update LLD & HLD
• Adding Logs to new code
• [V]Refactoring DAL

• [V]Adding Password option to GUI

• [V]Adding Password hashing functions

• Adding option to edit message in GUI

• Fix UnitTests

• [V]Retrieve messages via DAL
• [V]Filter messages via DAL
• Verify sort still working
• Send message via DAL

• [V]Register user via DAL
• [V]Login via DAL
• [V]Hashing mechanism as you described
• Create Update query gor edit message

Please write in whatsapp before you start coding something so we will know