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by Kenjiro Cho #07 11/28/2002

privacy issues

• user private data in packets
  
  
  • only packet headers are of interest
    
    
  • remove protocol payload
    
    
    • just removing payload makes traces much safer
      
      
• anonimity of users
  
  
  • IP address can identify a user
    
    
  • need to scramble IP addresses in open traces
    
    
• trade-off:
  
  
  • how much privacy vs. how much details
    
    
• tcpdpriv: a tool for tcpdump file
  
  
  • to remove payload
    
    
  • to scramble addresses