Monthly Archives: September 2008

BabelMap – navigating the spectacle of the seventeen planes

BabelMap stays open anytime I’m testing Unicode-enabled software for vulnerabilities.  It’s very useful for the advanced search – find all code points with the Zs category assigned, or the white space binary property.

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A shifting HTML5 spec could leave many applications vulnerable

We get into a dangerous situation when applications start implementing a standards-based specification that’s still in flux.  I think it’s made pretty clear in the HTML5 spec. Implementors should be aware that this specification is not stable. Implementors who are … Continue reading

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32nd Internationalization and Unicode Conference

Just got back from the IUC in San Jose and wanted to post my slides.

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Unicode root-cause security issues for generating test cases

When it comes to Unicode implementations, there’s a rich set of test cases to perform. Realizing it is the start. Automating it is the next step. Most Unicode-related security bugs can be categorized into the following root-causes: Canonicalization Interpreting non-shortest … Continue reading

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