Basic questions belong on [EMAIL PROTECTED]
The answer is that this parameter is case insensitive, so it doesn't
matter what the capitalization is. In fact, any parameter expressed with
quoted strings in a BNF is case insensitive.
-Jonathan R.
Kirchhoff Mechthild wrote:
>
> Hello,
> I'm in doubt about the right form of the algorithm parameter in an
> WWW/Proxy-Authenticate header.
>
> In RFC 2617 it is defined as:
> algorithm = "algorithm" "=" ( "MD5" | "MD5-sess" |
> token )
>
> But later in RFC 2617 there is an example:
> File "digtest.c":
> #include <stdio.h>
> #include "digcalc.h"
> void main(int argc, char ** argv) {
> char * pszNonce =
> "dcd98b7102dd2f0e8b11d0f600bfb0c093";
> char * pszCNonce = "0a4f113b";
> char * pszUser = "Mufasa";
> char * pszRealm = "[EMAIL PROTECTED]";
> char * pszPass = "Circle Of Life";
> char * pszAlg = "md5";
> char szNonceCount[9] = "00000001";
> char * pszMethod = "GET";
> char * pszQop = "auth";
> char * pszURI = "/dir/index.html";
> HASHHEX HA1;
> HASHHEX HA2 = "";
> HASHHEX Response;
> DigestCalcHA1(pszAlg, pszUser, pszRealm,
> pszPass, pszNonce,
> pszCNonce, HA1);
> DigestCalcResponse(HA1, pszNonce,
> szNonceCount, pszCNonce, pszQop,
> pszMethod, pszURI, HA2, Response);
> printf("Response = %s\n", Response);
> };
>
> In the call flows (draft-ietf-call-flows-02.txt) I found:
>
> SIP/2.0 407 Proxy Authorization Required
> Via: SIP/2.0/UDP here.com:5060
> From: BigGuy <sip:[EMAIL PROTECTED]>
> To: LittleGuy <sip:[EMAIL PROTECTED]>
> Call-ID: [EMAIL PROTECTED]
> CSeq: 1 INVITE
> Proxy-Authenticate: Digest realm="MCI WorldCom SIP",
> domain="wcom.com", nonce="wf84f1ceczx41ae6cbe5aea9c8e88d359",
> opaque="", stale=FALSE, algorithm=MD5
> Content-Length: 0
>
> What should a SIP server do if it receives algorithm=md5 in a
> Proxy/-Authorization header?
> Reject the authentication header or accept it and take the response as
> if calculated using the MD5 algorithm?
>
> Thanks for your answers.
>
> Mit freundlichem Gruss / With kind regards
>
> Mechthild Kirchhoff
>
> SIEMENS
> ICN WN CC NA D15
> Schertlinstrasse 8
> D-81359 Muenchen
> Germany
>
> Tel. : +49-89-722-49533
> Email: [EMAIL PROTECTED]
>
> _______________________________________________
> sip-aaa mailing list
> [EMAIL PROTECTED]
> http://mailman.dynamicsoft.com/mailman/listinfo/sip-aaa
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Avenue
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PH: (973) 952-5000
http://www.dynamicsoft.com
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