Preventing date rollback

[Heiko Blume]

boyd at necisa.ho.necisa.oz (Boyd Roberts) writes:

>In article <rcosj.660348537 at chudich> rcosj at chudich.co.rmit.oz (John Simmons) writes:
>>
>>Couldn't you get your program to check the date fairly regularly when it is
>>run and write it away somewhere, keeping track of the latest date reached so
>>far, then refuse to run at any time/date earlier than the latest one stored.

>No.

>How are you going to stop the place where it's written from being re-witten?

seems like you never looked into what copy-protection has come up
with to hide something (data) from you. i recommend to get an
apple ][* and one of the later games from electronic arts.
then try to find out what's where on the floppy. remember,
there are only 143KB on these disks !

i'll call you for results in a year or so :-)

seriously, in the time of 600KB executables it should be
absolutely no problem to hide a little date in there
somewhere.
-- 
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