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NtlmAuth (jTDS API)
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net.sourceforge.jtds.jdbc</FONT>
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Class NtlmAuth</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>net.sourceforge.jtds.jdbc.NtlmAuth</B>
</PRE>
<HR>
<DL>
<DT>public class <B>NtlmAuth</B><DT>extends java.lang.Object</DL>
<P>
This class calculates the two "responses" to the nonce supplied by the server
as a part of NTLM authentication.
Much gratitude to the authors of this page, esp. for NTLMv2 info:
http://davenport.sourceforge.net/ntlm.html
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>$Id: NtlmAuth.java,v 1.7 2006/06/23 18:00:56 matt_brinkley Exp $</DD>
<DT><B>Author:</B></DT>
<DD>Matt Brinkley</DD>
</DL>
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TD>
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<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#NtlmAuth()">NtlmAuth</A></B>()</CODE>
<BR>
</TD>
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<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#answerLmChallenge(java.lang.String, byte[])">answerLmChallenge</A></B>(java.lang.String pwd,
byte[] nonce)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#answerLmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[])">answerLmv2Challenge</A></B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] clientNonce)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#answerNtChallenge(java.lang.String, byte[])">answerNtChallenge</A></B>(java.lang.String password,
byte[] nonce)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#answerNtlmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[], byte[])">answerNtlmv2Challenge</A></B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] targetInfo,
byte[] clientNonce)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#answerNtlmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[], byte[], byte[])">answerNtlmv2Challenge</A></B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] targetInfo,
byte[] clientNonce,
byte[] timestamp)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#answerNtlmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[], byte[], long)">answerNtlmv2Challenge</A></B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] targetInfo,
byte[] clientNonce,
long now)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#convertPassword(java.lang.String)">convertPassword</A></B>(java.lang.String password)</CODE>
<BR>
Used by answerNtlmChallenge. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#createBlob(byte[], byte[], byte[])">createBlob</A></B>(byte[] targetInformation,
byte[] clientChallenge,
byte[] timestamp)</CODE>
<BR>
Creates the NTLMv2 blob from the given target information block and
client challenge.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#createTimestamp(long)">createTimestamp</A></B>(long time)</CODE>
<BR>
Creates a timestamp in the format used in NTLMv2 responses.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#encryptNonce(byte[], byte[])">encryptNonce</A></B>(byte[] key,
byte[] nonce)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#hmacMD5(byte[], byte[])">hmacMD5</A></B>(byte[] data,
byte[] key)</CODE>
<BR>
Calculates the HMAC-MD5 hash of the given data using the specified
hashing key.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#lmv2Response(byte[], byte[], byte[])">lmv2Response</A></B>(byte[] hash,
byte[] clientData,
byte[] challenge)</CODE>
<BR>
Creates the LMv2 Response from the given hash, client data, and
Type 2 challenge.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#makeDESkey(byte[], int)">makeDESkey</A></B>(byte[] buf,
int off)</CODE>
<BR>
Turns a 7-byte DES key into an 8-byte one by adding parity bits. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#md5(byte[])">md5</A></B>(byte[] data)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#ntHash(java.lang.String)">ntHash</A></B>(java.lang.String password)</CODE>
<BR>
Creates the md4 hash of the unicode password. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/NtlmAuth.html#ntv2Hash(java.lang.String, java.lang.String, java.lang.String)">ntv2Hash</A></B>(java.lang.String domain,
java.lang.String user,
java.lang.String password)</CODE>
<BR>
</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
<!-- ============ FIELD DETAIL =========== -->
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="NtlmAuth()"><!-- --></A><H3>
NtlmAuth</H3>
<PRE>
public <B>NtlmAuth</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
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<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="answerNtChallenge(java.lang.String, byte[])"><!-- --></A><H3>
answerNtChallenge</H3>
<PRE>
public static byte[] <B>answerNtChallenge</B>(java.lang.String password,
byte[] nonce)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="answerLmChallenge(java.lang.String, byte[])"><!-- --></A><H3>
answerLmChallenge</H3>
<PRE>
public static byte[] <B>answerLmChallenge</B>(java.lang.String pwd,
byte[] nonce)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="answerNtlmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[], byte[])"><!-- --></A><H3>
answerNtlmv2Challenge</H3>
<PRE>
public static byte[] <B>answerNtlmv2Challenge</B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] targetInfo,
byte[] clientNonce)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="answerNtlmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[], byte[], byte[])"><!-- --></A><H3>
answerNtlmv2Challenge</H3>
<PRE>
public static byte[] <B>answerNtlmv2Challenge</B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] targetInfo,
byte[] clientNonce,
byte[] timestamp)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="answerNtlmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[], byte[], long)"><!-- --></A><H3>
answerNtlmv2Challenge</H3>
<PRE>
public static byte[] <B>answerNtlmv2Challenge</B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] targetInfo,
byte[] clientNonce,
long now)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="answerLmv2Challenge(java.lang.String, java.lang.String, java.lang.String, byte[], byte[])"><!-- --></A><H3>
answerLmv2Challenge</H3>
<PRE>
public static byte[] <B>answerLmv2Challenge</B>(java.lang.String domain,
java.lang.String user,
java.lang.String password,
byte[] nonce,
byte[] clientNonce)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="ntv2Hash(java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
ntv2Hash</H3>
<PRE>
private static byte[] <B>ntv2Hash</B>(java.lang.String domain,
java.lang.String user,
java.lang.String password)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="lmv2Response(byte[], byte[], byte[])"><!-- --></A><H3>
lmv2Response</H3>
<PRE>
private static byte[] <B>lmv2Response</B>(byte[] hash,
byte[] clientData,
byte[] challenge)</PRE>
<DL>
<DD>Creates the LMv2 Response from the given hash, client data, and
Type 2 challenge.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>hash</CODE> - The NTLMv2 Hash.<DD><CODE>clientData</CODE> - The client data (blob or client challenge).<DD><CODE>challenge</CODE> - The server challenge from the Type 2 message.
<DT><B>Returns:</B><DD>The response (either NTLMv2 or LMv2, depending on the
client data).</DL>
</DD>
</DL>
<HR>
<A NAME="hmacMD5(byte[], byte[])"><!-- --></A><H3>
hmacMD5</H3>
<PRE>
private static byte[] <B>hmacMD5</B>(byte[] data,
byte[] key)</PRE>
<DL>
<DD>Calculates the HMAC-MD5 hash of the given data using the specified
hashing key.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - The data for which the hash will be calculated.<DD><CODE>key</CODE> - The hashing key.
<DT><B>Returns:</B><DD>The HMAC-MD5 hash of the given data.</DL>
</DD>
</DL>
<HR>
<A NAME="md5(byte[])"><!-- --></A><H3>
md5</H3>
<PRE>
private static byte[] <B>md5</B>(byte[] data)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="createTimestamp(long)"><!-- --></A><H3>
createTimestamp</H3>
<PRE>
public static byte[] <B>createTimestamp</B>(long time)</PRE>
<DL>
<DD>Creates a timestamp in the format used in NTLMv2 responses.
Public so it could be unit tested.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>time</CODE> - current time, as returned from System.currentTimeMillis
<DT><B>Returns:</B><DD>little-endian byte array of number of tenths of microseconds since
Jan 1, 1601</DL>
</DD>
</DL>
<HR>
<A NAME="createBlob(byte[], byte[], byte[])"><!-- --></A><H3>
createBlob</H3>
<PRE>
private static byte[] <B>createBlob</B>(byte[] targetInformation,
byte[] clientChallenge,
byte[] timestamp)</PRE>
<DL>
<DD>Creates the NTLMv2 blob from the given target information block and
client challenge.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>targetInformation</CODE> - The target information block from the Type 2
message.<DD><CODE>clientChallenge</CODE> - The random 8-byte client challenge.
<DT><B>Returns:</B><DD>The blob, used in the calculation of the NTLMv2 Response.</DL>
</DD>
</DL>
<HR>
<A NAME="encryptNonce(byte[], byte[])"><!-- --></A><H3>
encryptNonce</H3>
<PRE>
private static byte[] <B>encryptNonce</B>(byte[] key,
byte[] nonce)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="ntHash(java.lang.String)"><!-- --></A><H3>
ntHash</H3>
<PRE>
private static byte[] <B>ntHash</B>(java.lang.String password)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD>Creates the md4 hash of the unicode password. This is used as the DES
key when encrypting the nonce for NTLM challenge-response
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="convertPassword(java.lang.String)"><!-- --></A><H3>
convertPassword</H3>
<PRE>
private static byte[] <B>convertPassword</B>(java.lang.String password)
throws java.io.UnsupportedEncodingException</PRE>
<DL>
<DD>Used by answerNtlmChallenge. We need the password converted to caps,
narrowed and padded/truncated to 14 chars...
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.io.UnsupportedEncodingException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="makeDESkey(byte[], int)"><!-- --></A><H3>
makeDESkey</H3>
<PRE>
private static byte[] <B>makeDESkey</B>(byte[] buf,
int off)</PRE>
<DL>
<DD>Turns a 7-byte DES key into an 8-byte one by adding parity bits. All
implementations of DES seem to want an 8-byte key.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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