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- Path: lule.frontec.se!not-for-mail
- From: dast@sth.frontec.se (Daniel Stenberg (FRS))
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Key File Programming
- Date: 8 Feb 1996 07:50:10 GMT
- Organization: Frontec Railway Systems
- Message-ID: <4fc9vi$2id@lobo.lule.frontec.se>
- References: <4f9kvp$m70@rock101.genie.net>
- NNTP-Posting-Host: latour.sth.frontec.se
- X-Newsreader: TIN [UNIX 1.3 950515BETA PL0]
-
- IAN J. EINMAN (i.einman@genie.com) wrote:
- > Unless you are master-brainiac encryption-guru of the CIA Special Task
- > Force on Prime Number Modulo base 80 encryption Schemes, you will NEVER
- > NEVER NEVER be able to create a keyfile that a pirate cannot crack.
- > Don't think you can.
-
- That is IMHO a very stupid assumption, and probably based on the fact that
- you don't know much about encryption technology.
-
- I'd say any just-more-than-average programmer out there could fetch a book
- or article on the subject "public key encryption" and without too much effort
- create a keyfile that will be *HARD* to crack (say like a keyfile that would
- be or equal like 512 bits of RSA).
-
- I've written follow-ups like this a lot of times in this newsgroup, and I
- know a lot of people will read this and some will even reply that "if the
- program decrypts the keyfile, a hacker could get the decrypt routine and
- reverse it to encrypt a new one". It is not true. The basics of public key
- encryption is the fact that one of the keys is known, either the encryption
- key or the decryption key. They are not the same. Knowing one of them doesn't
- give you the other one. You can't simply reverse the operation without doing
- a whole lot of CPU, time and memory intensive calculations.
-
- > The pirates unfortunately include some of the smartest programmers in the
- > world. You will not stop them.
-
- Well, a strong keyfile will make the pirates to patch your executable to
- avoid the keyfile, but they can *NEVER* ever create a keyfile-maker that
- could damage any project pretty serious. It's all up to the author to
- decide.
-
- > If you create something decent, and support it well, people will pay you
- > for it.
-
- Of course, the main attraction will always be the power of the program itself,
- but my experience shows that programs entirely without cripples are more
- widely used un-registered than programs that feature a few (not too vital)
- cripples.
-
- --
- /****************************************************************************
- "I do not fear computers. Daniel.Stenberg@sth.frontec.se IRC: Bagder
- I fear the lack of them." http://www.lysator.liu.se/~matax
- -- Isaac Asimov FrexxEd - Never settle for less!
- ****************************************************************************/
-