Re: gs extension to relax access rules?

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From	ken <ken@spamcop.net>
Newsgroups	comp.lang.postscript
Subject	Re: gs extension to relax access rules?
Date	Mon, 26 Mar 2018 07:54:55 +0100
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In article <c94cbcf0-df12-4a9c-95a5-16b7c1487f49@googlegroups.com>, 
luser.droog@gmail.com says...

> I'm able to get the StdVW array out of the Private
> dictionary, but the array itself appears to have
> no access. '0 get' failed which tells me it does
> not have read access. And 'cvx exec' failed which
> tells me it does not have exec access either.

Font dictionaries are often created as 'no access' specifically to 
prevent trivial theft of fonts, its a copyright protection thing. The 
font interpreter can (internally) ignore such restrictions of course, it 
only affects the PostScript world.

 
> Is there any workaround I can use to persuade gs
> to crack this array for me?

I can't really answer that, because it would be technically illegal to 
disclose a means to circumvent copyright protection measures.

Of course, Ghostscript is open source software, so clearly its possible 
to modify it in such a way as to ignore no access restrictions, as well 
as other methods for extracting the information you want.

			Ken

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Thread

gs extension to relax access rules? luser droog <luser.droog@gmail.com> - 2018-03-24 10:05 -0700
  Re: gs extension to relax access rules? ken <ken@spamcop.net> - 2018-03-26 07:54 +0100
    Re: gs extension to relax access rules? luser droog <luser.droog@gmail.com> - 2018-03-26 15:00 -0700

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