From: Jerry Whiting <jwhiting@igc.apc.org>
Date: Fri, 5 Apr 1996 16:51:26 +0800
To: cypherpunks@toad.com
Subject: time/date hash
Message-ID: <199604050027.QAA01957@igc2.igc.apc.org>
MIME-Version: 1.0
Content-Type: text/plain


Interesting note in current issue of PC Magazine about how DOS 4 and later generates volume ID numbers. Neil Rubenking describes a time/date hash of the form:
  month plus seconds
  day plus hundredths of seconds
  high byte of the year plus hours
  low byte of the year plus minutes

I've actually been thinking about such a time/date hash during idle brain cycles.  Any thoughts on how secure such a hash is, as in how collision proof if the input date is from today forward 50 years?

thanks,


Jerry Whiting
72627.746@compuserve.com  <- til our server is back up...