Diffie-Hellman, Secret Key Exchange Demo

                    Alice

                        insert_emoticon
                    
                                    lock3. private
                                    number a (1
                                    < a < n): 
                                
                                    public key (ga mod n):
                                    
                                    secret key [(gb mod n)a]:
                                    
                    Internet

                        flash_on
                    
                                    1. small prime number g:
                                    
                                    2. large number n (2048-4096 bits):
                                    
                                    public key [ga mod n]:
                                    
                                    public key [gb mod n]:
                                    
                    Bob

                        face
                    
                                    lock4. private
                                    number b (1
                                    < b < n): 
                                
                                    public key [gb mod n]:
                                    
                                    secret key [(ga mod n)b]:

3. private number a (1 < a < n):

public key (g^a mod n):

secret key [(g^b mod n)^a]:

1. small prime number g:
2. large number n (2048-4096 bits):
public key [g^a mod n]:
public key [g^b mod n]:

4. private number b (1 < b < n):


public key [g^b mod n]:
secret key [(g^a mod n)^b]:

Alice insert_emoticon

Internet flash_on

Bob face

Alice

Internet

Bob