Hi,
Thying to cleanup old emails I just found that one. I pasted your input
to the related ticket.
Sorry for the delay.
Cheers
On Thu, 21 Feb 2013 14:21:21 +0000 adrelanos <adrelanos@???>
wrote:
> I was trying to sketch a user interface for a MAC changer, fulfilling
> everything mentioned on https://tails.boum.org/todo/macchanger/
>
> To understand the problem better myself and to make sure we are all
> talking about the same thing, I thought it may be a good idea to
> create an overview. Therefore I made a nice table, which is attached
> below. I couldn't add it myself to the wiki page. "Error: Sorry, but
> that looks like spam to blogspam: bayes, 9 links found" Can you relax
> the spam protection for my user account adrelanos please? I promise
> not to spam. ;) Or just add it if you think that makes any sense.
>
> There are so many different threat models and goals, I am not sure it
> gets too difficult for the average user. For supporting all use cases,
> the user interface would become giant, just for deciding on which MAC
> to use.
>
> use case overview
> -----------------
>
> public computer could be a library.
>
> public network_C could be a free wifi hotspot in a mall.
>
> public network_A, public network_B, public network_D and public
> network_E could be different coffee houses with free wifi.
>
> number | place | past usage | threat model | new recommendation
> ------------- | ------------- | ------------- | ------------- |
> -------------
> 1 | home computer | real mac | none | macchiato mac random
> 2 | public computer | real mac | changing mac gets admin attention
> and/or network breaks | real mac
> 3 | public network_A | real mac | admin looks for consistent mac |
> real mac 4 | public network_B | macchanger random mac_B | admin looks
> for consistent mac, but not for Tor or popular vendor ids | macchanger
> random mac_B
> 5 | public network_C | never used | many users, admin logs mac
> addresses and looks out for unpopular vendor ids | random macchiato
> mac 6 | public network_D | never used | admin logs mac addresses,
> looks for unpopular vendor ids, looks for consistent mac | macchiato
> mac_D 7 | public network_E | never used | admin logs mac addresses,
> looks for unpopular vendor ids, looks for consistent mac | macchiato
> mac_E
>
> Legend:
>
> * Consistent mac: always the same after choosing one. Not showing up
> with a new mac each time.
> * macchiato mac random: popular vendor id, latter part varies every
> time
> * macchiato mac_D (or E): popular vendor id, latter part was random
> when the mac address was first created, after creating macchiato
> mac_D always get macchiato mac_D when choosing macchiato mac_D
>
> Or in words...
> --------------
>
> 1. "I am using my home computer, give me a macchiato mac random. I
> don't really need it, just give it to me. Feel so much better. Just
> in case." 2. "I am using a public computer, don't change the mac.
> Otherwise this might bring unwanted admin attention or the network
> simply gets unaccessible."
> 3. "I am using public network_A. I always used my real mac in past.
> The admin knows everyone and gets suspicious if someone changes its
> mac. Stick to my real mac."
> 4. "I am in public network_B again, I previously used macchanger to
> get the random mac_B. The admin looks if I am sticking to that mac,
> but doesn't know, that the vendor id doesn't even exist. Stick to the
> old random mac_B."
> 5. "I am using public network C for the first time. There are many
> users. I think the admin logs all mac addresses. I also think the
> admin knows about unpopular vendor ids and gnu macchanger. It's a
> popular network. The admin however won't remember me or anyone else.
> Give me a random mac from with a popular vendor id (macchiato)."
> 6. "I am using public network D for the first time. I think the admin
> logs mac addresses. I also think the admin looks for unpopular mac
> addresses and knows gnu macchanger. The admin also get suspicious if
> someone changes its mac. Give me a random mac with a popular vendor
> id, call it mac_D and re-use it when I next time visit this network."
> 7. "Yes, network_E has very similarities with network_D. I think the
> admin logs mac addresses. I also think the admin looks for unpopular
> mac addresses and knows gnu macchanger. The admin also get suspicious
> if someone changes its mac. Give me a random mac with a popular
> vendor id, call it mac_E and re-use it when I next time visit this
> network. Don't confuse it with other mac's"
>
> Thoughts
> --------
>
> Supporting use cases 6 and 7 would either require persistence or the
> user would have to remember or write down the mac address, which is
> difficult.
>
> An ideal solution doesn't require persistence.
>
> The user enters a word and using that word will result in creating the
> same macchiato mac_D or macchiato mac_E.
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