Re: Encryption for a program.

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#19

From: Mark Wooding
Date: Tue, 11 Aug 1998 00:00

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GIJoe <astoneha@argonet.co.uk> wrote:

> 1.  Encrypt all of the files and allow for them to be decyrpted later so
>     that none of the files can be copied.

This is a misconception.  Encrypting data doesn't stop you from copying
it; it just stops you from being able to interpret it.

Besides, in the context of an installer, all you can do is obscure the
files: the key has to be provided to the customer anyway, at which point
any copies become usable too.  Real cryptography won't buy you anything
here.

> 2.  Have a credit scheme so that it can only be installed once.

Unworkable.  Also, this may violate the customer's fair use rights.

This is technically pointless, and it's all on morally dodgy ground
anyway.  Stay well clear.

-- [mdw]

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From: mdw@catbert.ebi.ac.uk (Mark Wooding)
Subject: Re: Encryption for a program.
Date: 1998/08/11
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