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Update README.md

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1 parent c34dc07 commit 20e31c485944366b535f7789587c1aae85bc989e @hueniverse committed Nov 26, 2012
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@@ -272,6 +272,10 @@ design violates the HTTP header boundaries, repeats information, and introduces
will not be aware of these “hidden” headers. In addition, any information repeated must be compared to the duplicated
information in the header and therefore only moves the problem elsewhere.
+### Why not just use HTTP Digest?
-
+Digest requires pre-negotiation to establish a nonce. This means you can't just make a request - you must first send
+a protocol handshake to the server. This pattern has become unacceptable for most web services, especially mobile
+where extra round-trip are costly. While Hawk includes support for sending a challenge when a request lacks
+authentication, it does not require it.

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