Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!sol.ctr.columbia.edu!ira.uka.de!fauern!opal!tmpmbx!scuzzy!src From: src@scuzzy.in-berlin.de (Heiko Blume) Newsgroups: comp.unix.internals Subject: Re: Preventing date rollback Message-ID: <1990Dec11.125711.1468@scuzzy.in-berlin.de> Date: 11 Dec 90 12:57:11 GMT References: <1959@necisa.ho.necisa.oz> Distribution: comp Organization: Contributed Software Lines: 28 boyd@necisa.ho.necisa.oz (Boyd Roberts) writes: >In article rcosj@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. -- Heiko Blume <-+-> src@scuzzy.in-berlin.de <-+-> (+49 30) 691 88 93 public source archive [HST V.42bis]: scuzzy Any ACU,f 38400 6919520 gin:--gin: nuucp sword: nuucp uucp scuzzy!/src/README /your/home