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SECURE INSTANT MESSENGER

SECURE INSTANT MESSENGER. HUSKY HACKERS –GROUP 7 ABDULLA AL ALI DEEPAK KALRA RAGURAM KRISHNAMACHARI SHINN CHYANG. ARCHITECTURE. Client – Server Architecture Client pre-configured with server’s public key New Public / Private Key at the client Ticket-to-Chat generated at server.

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SECURE INSTANT MESSENGER

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  1. SECURE INSTANT MESSENGER HUSKY HACKERS –GROUP 7 ABDULLA AL ALI DEEPAK KALRA RAGURAM KRISHNAMACHARI SHINN CHYANG

  2. ARCHITECTURE Client – Server Architecture Client pre-configured with server’s public key New Public / Private Key at the client Ticket-to-Chat generated at server 1&2) Mutual authentication with server 3) User obtains ticket from server 4) Mutual authentication with client using the ticket

  3. GRAPHICAL USER INTERFACE Login List Chat

  4. LOGIN Pre-Condition: The user runs the client executable. Action: User enters username and password in the textboxes and clicks “Login”

  5. LIST Pre-Condition: The user has to be logged in. Action: User clicks on “LIST”

  6. PERMIT Pre-Condition: Client has a list of online users Action: User double clicks on a username

  7. PEER – PEER AUTHENTICATION Pre-Condition: Client has obtained the TICKET-to-B and knows IPB & PKB

  8. PEER – PEER MESSAGE EXCHANGE Pre-Condition: Client A and Client B have been mutually authenticated and established a session key. Action: Client A / B types another message and hits enter.

  9. LOGOUT Pre-Condition: Client A is logged in. Action: Client A clicks on “Logout”.

  10. QUESTIONS ???

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