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- Path: sparky!uunet!spool.mu.edu!agate!dog.ee.lbl.gov!ucbvax!FTP.COM!backman
- From: backman@FTP.COM (Larry Backman)
- Newsgroups: comp.protocols.tcp-ip.ibmpc
- Subject: Re: PC/TCP 2.1 copy protection
- Message-ID: <9209140007.AA26934@ftp.com>
- Date: 14 Sep 92 00:07:48 GMT
- Sender: daemon@ucbvax.BERKELEY.EDU
- Distribution: world
- Organization: The Internet
- Lines: 84
-
-
- >> >And what is to stop someone from either 1) patching the binaries to disable
- >> >the "copy protection" or 2) obtaining a non-protected version (as in FTP
- >> >Software's scheme for their site licenses) and then distributing these
- >> >versions freely? Has copy protection helped you any? No. Has it hampered your
- >> >legit customers? Most definitely. Do you honestly think it will take more than
- >> >a week or so for someone to figure out how to bypass any scheme you can think
- >> >of?
- There are clearly ways to break, avoid, step around, FTP Software's copy
- protection scheme. If someone does so; they probably are aware that
- they are violating a license. Its unlikely that without *serious* effort,
- code, and pain on all parts, that we can stop someone who doesn't give
- a damn about the license and is willing to spend more than a couple
- hours to devise a way around the serialization.
-
- That person is clearly doing something illegal.
-
- >> difficult any copy protection scheme is to break. I will say that the major
- >> reason that a company like FTP, SUN or B&W (correct me if I'm wrong, SUN & FTP),
- >> is adding copy protection/notification is not to stop the hackers from
- >> breaking the protection and running several copies, but to make companies think
- >> twice about illegaly copying software. In several foreign countries, companies
- >> don't think twice about using a single copy of software on all their machines.
- >> If they require a hacker to break the protection, they would have to consider
- >> their actions and most likely "do the right thing".
-
- Carl is absolutely correct. We are responding to a need expressed by others
- to stop the "casual" illegal copy, an illegal copy that often is done
- unwittingly. This need is often expressed by a reseller or distributor
- who is trying to sell into a mid to large account, and who cannot sell
- a site license as we can and who wants some level of assurance that their
- customer is not cheating them unwittingly.
-
- >> >And were Beame and Whiteside to implement the same scheme would we start
- >> >having problems with conflicting serial numbers between your product and
- >> >FTP Software's on the same net?? What about when the next vendor comes along
- >> >and thinks this is such a great idea and jumps on the band wagon (but of
- >> >course not taking the time to _ensure_ its serial numbers are unique).
- If this unlikely event were to take place I would be in contact with
-
- Carl quite fast, exchanging algorithms and seed numbers to assure that
- we wouldn;t ever collide. However; if another vendor does pick the same
- algorithm as we did, and uses the same starting seed, FTP would quickly
- resolve problems with that vendor.
-
- >> It is not as simple as you are descibing. The ARP packets have a
- >> series of special codes which indicate that it contains an "FTP serial #".
- >> If another company did this, they would choose a different "special code".
- >> Just like ethernet address, vendors must ensure that the special codes
- >> are different. Maybe (I don't know) FTP uses the letters "FTP" and B&W
- >> might use "B&W" ... :-)
- we do fold some of our own secret stuff into the serial # & key; its not
- "FTP" however...
-
- >> As I indicated previously, B&W does not have any protection
- >> scheme and that we have no plans at this time to add one. I should also note
- >> that the pressure to add one is coming from foreign distributors in certain
- >> countries.
-
- as we have heard and yielded to.
-
- Just for a reality check as to what copy protection really does for FTP...
- it adds overhead to
- * sales
- * production
- * support
- it potentially might add some small amount of revenue; certainly not
- worth the amount of administrative overhead we have to pour into
- it to make sure it works right. We do not make $$$ off this; it is
- a fact of doing business in a complex and competitive international
- marketplace.
-
- Each time this issue comes up you see most of the leading vendors
- speak up with good hard reasons why they are using or considering
- using copy protection. Its rare you see us all agree on something.
- There must be a reason :-).
-
- Consider how much easier it would all be if everyone paid for all the
- software they used....
-
-
- Larry Backman
- FTP Software
-
-