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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi shrubbery, <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Could you pls help to confirm this?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">BRs,<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Justin Huang<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">TEL: 86-21-65100909 ext.42463<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Justin (Xiaogang) Huang
<br>
<b>Sent:</b> 2016</span><span style="font-size:10.0pt;font-family:SimSun">Äê</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">1</span><span style="font-size:10.0pt;font-family:SimSun">ÔÂ</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">22</span><span style="font-size:10.0pt;font-family:SimSun">ÈÕ</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
10:45<br>
<b>To:</b> 'tac_plus@shrubbery.net'<br>
<b>Subject:</b> MSCHAP authen fails always<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">First many thanks for your great open source implementation.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I¡¯ve tried this tac_plus server(F4.0.4.28) and succeeded to authen with PAP/CHAP but always failed with MS-CHAP.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I dumped some more debug info and found that the NT compatible response was generated wrongly in server. The MD4 password hash is correct. But the DES encryption is not. Here I used the data in RFC2433 B.2 as the reference.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Please have a check and keep me informed if you confirm/reject it and/or make it fixed. Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">BRs,<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Justin Huang<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">TEL: 86-21-65100909 ext.42463<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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