Posted by Eian on 1999-06-30
There a ton of schemes that are used to perform just the operation that you have described. One of the most popular, and perhaps easiest is that you require some sort of "key" for the software to work. Hopefully, the key is derived from some sort of information that would make it unique to each computer. The only problem about this is that then you would have to generate a key for each and every copy that you sold. Another approach (I think that Nintendo did this, or perhaps Sony) was to actually put bad blocks (not necesarrly bad, just messed up in a certain way) in your media. Then, on load, your program makes sure that these "funky" blocks are present. Of course, this would best be implemented using a CD-ROM. Actually, even for a short time this fooled even the people with the CD burners, as the blocks were messed up in someway that (I don't know how) the burners didn't catch it. Hope this helps, Eian On 30 Jun 99, at 14:24, bbs wrote: > > Hi > If I want to sell a software per copy. how can i protect this ? > let say i'm using 1.44 diskette media or cd rom, > Is there any copy protection software out there that secure enough that i > can use ? Thanks ! > > > >
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