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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:15:21
Mok-Kong Shen (mok-kong.shen@stud.uni-muenchen.de)
Tue, 13 Oct 1998 10:28:52 +0100
>
> > I remember reading something somewhere (here?, sci.crypt?) about an
> > authentication method that has the user select a number of faces .. this
> > unique combination of faces is the user's key, essentially.
> >
> > It seems to me that if there were enough faces available to choose from,
> > a user could select faces (easier to remember than long unrelated
> > 'phrases' it seems) .. if each face has a number assigned to it, we can
> > hash the numbers of all the chosen faces to obtain some bits for keying
> > a cipher.
Doesn't this amount to saying that it is easier to remember a set
of pictures than a set of characters or words? If that is in fact
the case (I suppose this properly should be confirmed by psychologists)
I wonder why one has to restrict oneself to faces. The pictures could
just as well be those of any (easily recognizable familiar) objects.
It is the subset of pictures from among the whole set (a combinatorial
problem) that is the deciding factor in the authentification process,
isn't it? BTW, that would presumably avoid the problems with the IBM
patents.
M. K. Shen
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:15:21