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Refox - to post, or not to post - that is the question.
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À
07/03/2002 11:02:01
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00629158
Message ID:
00629645
Vues:
26
Hi Denis,

>And could you tell me why we'd have to lose all of those? There are probably ways to protect apps without losing anything.

For example, because each visual class has got a SaveAsClass method. If you have a reference to an object, you can save it into a VCX. The VCX wouldn't contain the source code, but it has the compiled object code and is not encrypted...

Another example. Assume you have written a sophisticated application that manages critical data. Because these data are very important and sensitive, you have encrypted them with Cryptor. Someone who wants to get at data that the application would normal prevent him from accessing just has to add an index on a UDF to a table that is not encrypted, but changed by the application. When the index expression is evaluated inside the application, the UDF has the same rights to all tables as your application, because it runs in the same environment as your code.

The problem is, all those features allow you to execute code inside an application which gives you full access to everything to which the application has access.


Christof
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Christof
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