SBES - SIGURNOST I BEZBEDNOST ELEKTROENERGETSKIH SISTEMA | SECURITY AND SAFETY OF ELECTRIC POWER SYSTEMS

Projekat iz predmeta Sigurnost i Bezbednost Elektroenergetskih Sistema, Fakultet Tehničkih Nauka.

Potrebno je realizovati sistem za sigurno korišćenje timer-a.

-Korisnici se autentifikuju pomoću Windows autentifikacionog protokola.

-Za autorizaciju sistema implementirati RBAC mehanizam. RBAC permisije koje sistem treba da ima su:

• See
  
• Change
  
• StartStop
  

-Mapiranje permisija na grupe treba učiniti konfigurabilnim.

-Servis treba da omogući:

• PokreniTimer (zahteva StartStop permisiju)
  
• ZaustaviTimer (zahteva StartStop permisiju)
  
• PonistiTimer (zahteva Change permisiju)
  
• PostaviTimer (zahteva Change permisiju) - vreme koje korisnik šalje serveru treba poslati šifrovano DES kriptografskim algoritmom u CBC modu
  
• OcitajTimer (zahteva See permisiju)
  

-Timer se zaustavlja ili kad ga neko uspešno zaustavi metodom ZaustaviTimer, ili kada istekne postavljeno vreme timer-a koji je neko od korisnika pokrenuo. -Poništavanje timer-a podrazumeva njegovo postavljanje na nulu. -Neophodno je logovati sve akcije koje korisnik vrši u sistemu, osim čitanja vremena štoperice. Logovati pomoću Windows Event Log-a.

---

Project in the subject of Security and Safety of Electric Power Systems, Faculty of Technical Sciences.

It is necessary to implement a system for safe use of the timer.

-Users are authenticated using the Windows authentication protocol.

-Implement the RBAC mechanism to authorize the system. The RBAC permissions that the system should have are:

• See
  
• Change
  
• StartStop
  

-Mapping permissions to groups should be made configurable.

-The service should enable:

• StartTimer (requires StartStop permission)
  
• StopTimer (requires StartStop permission)
  
• ResetTimer (requires Change permission)
  
• SetTimer (requires Change permission) - the time the user sends to the server should be sent encrypted with DES cryptographic algorithm in CBC mode
  
• Read Timer (requires See permission)
  

-The timer stops either when someone successfully stops it with the Stop Timer method, or when the set timer time that one of the users has started expires.
-Resetting the timer means setting it to zero. 
-It is necessary to log all actions performed by the user in the system, except for reading the stopwatch time. Log in using Windows Event Log.