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clarified potential DoS attack

git-svn-id: file:///home/ksmith/gitmigration/svn/xmpp/trunk@3390 4b5297f7-1745-476d-ba37-a9c6900126
Unknown User 9 years ago
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3acc0fdc84
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      xep-0170.xml

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xep-0170.xml View File

@@ -81,7 +81,7 @@
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     <p>That order MUST be followed if no other stream features are negotiated.</p>
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   </section2>
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   <section2 topic='Stream Compression' anchor='c2s-compress'>
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-    <p>&xep0138; is negotiated when it is not possible to set up TLS compression for whatever reason. It seems safest to negotiate stream compression after negotiation of both TLS (to safely complete the negotiation) and SASL (to prevent certain denial-of-service attacks). Therefore the following order is RECOMMENDED:</p>
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+    <p>&xep0138; is negotiated when it is not possible to set up TLS compression for whatever reason. It seems safest to negotiate stream compression after negotiation of both TLS (to safely complete the negotiation) and SASL (to prevent certain denial-of-service attacks caused by consumption of server resources for compression before the connecting entity is authenticated). Therefore the following order is RECOMMENDED:</p>
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     <ol>
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       <li>TLS</li>
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       <li>SASL</li>

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