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Re: Pushing all the buttons

• To: Marc Hadley <Marc.Hadley@S...>
• Subject: Re: Pushing all the buttons
• From: Rich Salz <rsalz@d...>
• Date: Mon, 22 Sep 2003 11:57:51 -0400
• Cc: xml-dev@l...
• In-reply-to: <1A512572-ED11-11D7-8785-0003937568DC@s...>
• References: <1A512572-ED11-11D7-8785-0003937568DC@s...>
• User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4b) Gecko/20030507

> For the record, there's nothing Java specific about the encoding. Data 
> is encoded using ASN.1 Packed Encoding Rules (PER). ASN.1 was around 
> long before Java, PER is not based on Java serialization. I would expect 
> a C based ASN.1 PER library to perform as well as a Java equivalent.

Do you force byte alignment within the PER message?

This will be comical when using crypto in XML, DER->base64->PER.  :)

Why not use DER?  Hand-coded (or probably more accurately, 
IDL-compiler-generated) parser could just skip the tags, in most cases 
the lengths would be single-byte, and you'd get better interop.  Seems 
like that's closer to the 80/20.

	/r$
-- 
Rich Salz, Chief Security Architect
DataPower Technology                           http://www.datapower.com
XS40 XML Security Gateway   http://www.datapower.com/products/xs40.html
XML Security Overview  http://www.datapower.com/xmldev/xmlsecurity.html

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