V4-SW-Notes

From RFID Wiki

Contents 1 SW Support Needed 2 High-Level Functionality 3 Abstraction Layers 4 Definitions 5 Stuff to do 6 Future Project Ideas

[edit] SW Support Needed

• Laptop
• RFID Reader
• RFID Guardian

[edit] High-Level Functionality

• Tag auditing
• Scan auditing
• Selective Jamming
  • Upload a selected ACL to a u-controller, which runs the program
• SSL can be done without real-time constraints
• Leave space for the security features
  • Fuzzing (breaks through all layers)

(There's more that we need to add to this list.)

[edit] Abstraction Layers

Laptop (attached to Guardian):

• Application
• Application modules (Host)
• Stubs
• USB

RFID Guardian:

• USB
• Skeleton (USB interface)
• Application Modules (Microcontroller)
• RTOS
• HW

(Two halves communicate via USB.)

[edit] Definitions

• Stub - placeholder for something that you want to invoke remote
• Skeleton - thing that serves it on the server side

These things enable you do make calls over the network (i.e. USB) (Example: Guardian Protocol)

• Application module (on the left):
  • These are the non-realtime parts in the toolkit
  • Examples: Tag queries, ACL, SSL stuff, spoofing, jamming, scan logging
  • Future Stuff: Replay and relay attacks
    • But this is more complicated, because we need 2 Guardians
  • (Jamming is a special case of spoofing)
  • All things SSL happen here

• Application module (on the right):
  • Contain real-time parts of the toolkit
    • Example: ACL decision procedures
  • The Guardian just behaves like it's a network component
  • It doesn't do anything smart beyond pass-on packets
  • Sniffing the RFID interface (request / response)
  • Raw packet creation on the RFID interface
    • We craft frames and packets
  • The whole Kismet idea

• Application:
  • User can write their own application
  • Example: RFID Firewall Application

• Overview: Stuff is computed on the right, and pre-loaded on the left

[edit] Stuff to do

• TODO:Refine the list of application modules
  • Break down over left and right
  • Match up with the source code

• V4_SW_Layers - Tentative diagram for the V4 SW Layers

• TODO: Make a brainstorm list of any functionality we want to add
• TODO: Further augment list of high-level functionality

[edit] Future Project Ideas

• Right now, the host SW is only available under Linux/Cygwin
  • Porting this could be a potential project for a student/volunteer
    • (This including creating a Windows USB driver.)