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Network Security Web-App-Sec
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Re: Canonicalization

Subject: Re: Canonicalization
Date: Wed, 12 Apr 2006 14:31:52 +0200
11 Apr 2006 13:12:29 -0000, susam_pal@yahoo.co.in <susam_pal@yahoo.co.in>:
I found the following paragraph in owasp.org. Can someone please elaborate on 
this?

Parameters must be converted to the simplest form before they are validated,
otherwise, malicious input can be masked and it can slip past filters. The 
process of
simplifying these encodings is called "canonicalization."

There is a (very short) article on Wikipedia, to begin with:
http://en.wikipedia.org/wiki/Canonicalization

There is an example, not directly related to security.

Yann
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