View Source: mcookie(1) - Waikato Linux Users Group

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MCOOKIE
!!!MCOOKIE
NAME
SYNOPSIS
DESCRIPTION
BUGS
FILES
SEE ALSO
----
!!NAME


mcookie - generate magic cookies for xauth
!!SYNOPSIS


__mcookie [[-v] [[-f__ ''filename''
__]__
!!DESCRIPTION


__mcookie__ generates a 128-bit random hexadecimal number
for use with the X authority system. Typical
usage:


xauth add :0 . `mcookie`


The
-f__ is specified), and several bytes of information
from the first of the following devices which is present:
''/dev/random'', ''/dev/urandom'', files in
''/proc'', ''/dev/audio''.
!!BUGS


The entropy in the generated 128-bit is probably quite small
(and, therefore, vulnerable to attack) unless a
non-pseudorandom number generator is used (e.g.,
''/dev/random'' under Linux).


It is assumed that none of the devices opened will
block.
!!FILES


''/dev/random
/dev/urandom
/dev/audio
/proc/stat
/proc/loadavg''
!!SEE ALSO


X(1), xauth(1), __md5sum__(1)
----

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Last edited on Tuesday, June 4, 2002 12:22:19 am by "perry"

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