On Mon, Nov 13, 2000 at 03:55:05PM +0200, Adrian Snyman wrote:
> I have written this module for extracting the unique characters from
> an input line, as I have been unable to find something to do this ..
> (For creating a Cipher key) ..
> 
> If there is any use for this, please let me know. And if there are any
> problems, I will be happy to fix them.

    It sounds like you're trying to extract the high-entropy parts of a
string.  Just pulling the unique characters from an input string isn't
a reliable way to do this!  There are information-theoretic reasons
why this is so; one place you might start reading to understand this
problem more deeply is:

    http://www.counterpane.com/yarrow-notes.html

    Peace,
* Kurt Starsinic ([EMAIL PROTECTED]) ---------------- Senior Software Architect *
|     `. . . it is important to remember that the only perfectly secure     |
|      network is one that doesn't allow any data through at all and that   |
|      the only problem with such a network is that it is unusable.'        |
|      -- Ned Freed                                                         |

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