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.TH ATALLA 8
.SH NAME
atalla \- initializing a challenge box
.SH DESCRIPTION
It is easiest to initialize an Atalla
(a.k.a. SNK) box at the same time you use the
.B -c
option of
.IR pwx ,
before you hand it to the user, not in the user's presence.
To initialize the box:
freak it out by giving five consecutive wrong PIN entries, for example by
pushing the sequence
.B ON
.B 0
.B ENTER
five times.
The box's display should now read
.BR "ES0 ----" ,
you push
.B 1
.BR ENTER .
The display now reads
.BR "ES1 ----" ,
you now enter eight bytes of secret key, which you may ask
.I pwx
to invent, and which the user will not know.
Each byte is represented by three octal digits, in the range
.B 000
through
.BR 277 ,
so it takes 24 key strokes to enter the secret key.
Now push
.BR ENTER ,
and a check sum of form
.B "C xxxxxxxx"
is displayed.
Push
.B ENTER
again
and another check sum is displayed,
this time of form
.BR "F xxxxxxxx" .
Push
.B ENTER
yet again
and
the display reads
.BR "EP1 ----" .
At this point the box may be handed to the user.
The user enters a personal password (his ``PIN'')
of 4 through 8 digits' length,
followed by
.BR ENTER ,
and again, as a check.
Thereafter the user must
type his personal password whenever he uses the box.
Instruct the user not to divulge his personal password, and
promise the user you will not divulge
his secret key.
.SH SEE ALSO
.IR passwd (1)
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