How to perform an NTLM challenge on the iPhone.

Posted by toast on Stack Overflow See other posts from Stack Overflow or by toast
Published on 2009-03-10T04:26:09Z Indexed on 2010/06/18 13:13 UTC
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iphone

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ntlm

I'm trying to access some web services in an iPhone application.

If I GET to the .asmx page, I authenticate and get the WSDL as expected.

However, if I POST to the .asmx page, setting the SOAPAction, Content-Type, Content-Length, and HTTPBody, I just keep getting didReceiveAuthenticationChallenge messages.

Additionally, I'm trying to POST to IIS using Integrated Windows Authentication (IWA), which means I'm trying to negotiate an NTLM challenge.

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