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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> *<a name="line.18"></a> |
| <span class="sourceLineNo">019</span> */<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>package org.apache.mina.proxy.handlers.http.ntlm;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.security.Key;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.security.MessageDigest;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import javax.crypto.Cipher;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import javax.crypto.spec.SecretKeySpec;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>/**<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * NTLMResponses.java - Calculates the various Type 3 responses. Needs an MD4,<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * MD5 and DES crypto provider (Please note that default provider doesn't<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * provide MD4).<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * <a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * Copyright (c) 2003 Eric Glass Permission to use, copy, modify, and distribute<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * this document for any purpose and without any fee is hereby granted, provided<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * that the above copyright notice and this list of conditions appear in all<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * copies.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * <a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * @see <a href="http://curl.haxx.se/rfc/ntlm.html">NTLM RFC</a><a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * <a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @since MINA 2.0.0-M3<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> */<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>public class NTLMResponses {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> // LAN Manager magic constant used in LM Response calculation<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> public static final byte[] LM_HASH_MAGIC_CONSTANT =<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> new byte[]{ 'K', 'G', 'S', '!', '@', '#', '$', '%' };<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> /**<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * Calculates the LM Response for the given challenge, using the specified<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * password.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> *<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * @param password The user's password.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * @param challenge The Type 2 challenge from the server.<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> *<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * @return The LM Response.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> */<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> public static byte[] getLMResponse(String password, byte[] challenge) throws Exception {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> byte[] lmHash = lmHash(password);<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> return lmResponse(lmHash, challenge);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> }<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> /**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * Calculates the NTLM Response for the given challenge, using the<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * specified password.<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> *<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * @param password The user's password.<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * @param challenge The Type 2 challenge from the server.<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> *<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @return The NTLM Response.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> public static byte[] getNTLMResponse(String password, byte[] challenge) throws Exception {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> byte[] ntlmHash = ntlmHash(password);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> return lmResponse(ntlmHash, challenge);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> }<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> /**<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * Calculates the NTLMv2 Response for the given challenge, using the<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * specified authentication target, username, password, target information<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * block, and client nonce.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> *<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @param target The authentication target (i.e., domain).<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @param user The username.<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * @param password The user's password.<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * @param targetInformation The target information block from the Type 2<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * message.<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * @param challenge The Type 2 challenge from the server.<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * @param clientNonce The random 8-byte client nonce.<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> *<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * @return The NTLMv2 Response.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> */<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> public static byte[] getNTLMv2Response(String target, String user, String password, byte[] targetInformation,<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> byte[] challenge, byte[] clientNonce) throws Exception {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> return getNTLMv2Response(target, user, password, targetInformation, challenge, clientNonce,<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> System.currentTimeMillis());<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> /**<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * Calculates the NTLMv2 Response for the given challenge, using the<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * specified authentication target, username, password, target information<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * block, and client nonce.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> *<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * @param target The authentication target (i.e., domain).<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * @param user The username.<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * @param password The user's password.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * @param targetInformation The target information block from the Type 2<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * message.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * @param challenge The Type 2 challenge from the server.<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * @param clientNonce The random 8-byte client nonce.<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * @param time The time stamp.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> *<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * @return The NTLMv2 Response.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> */<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public static byte[] getNTLMv2Response(String target, String user, String password, byte[] targetInformation,<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> byte[] challenge, byte[] clientNonce, long time) throws Exception {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> byte[] ntlmv2Hash = ntlmv2Hash(target, user, password);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> byte[] blob = createBlob(targetInformation, clientNonce, time);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> return lmv2Response(ntlmv2Hash, blob, challenge);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> /**<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> * Calculates the LMv2 Response for the given challenge, using the<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * specified authentication target, username, password, and client<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * challenge.<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> *<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @param target The authentication target (i.e., domain).<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * @param user The username.<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> * @param password The user's password.<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> * @param challenge The Type 2 challenge from the server.<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> * @param clientNonce The random 8-byte client nonce.<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> *<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * @return The LMv2 Response.<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> */<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> public static byte[] getLMv2Response(String target, String user, String password, byte[] challenge,<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> byte[] clientNonce) throws Exception {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> byte[] ntlmv2Hash = ntlmv2Hash(target, user, password);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> return lmv2Response(ntlmv2Hash, clientNonce, challenge);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> }<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> /**<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> * Calculates the NTLM2 Session Response for the given challenge, using the<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> * specified password and client nonce.<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> *<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> * @param password The user's password.<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * @param challenge The Type 2 challenge from the server.<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> * @param clientNonce The random 8-byte client nonce.<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> *<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> * @return The NTLM2 Session Response. This is placed in the NTLM<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * response field of the Type 3 message; the LM response field contains<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> * the client nonce, null-padded to 24 bytes.<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> */<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> public static byte[] getNTLM2SessionResponse(String password, byte[] challenge, byte[] clientNonce)<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> throws Exception {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> byte[] ntlmHash = ntlmHash(password);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> MessageDigest md5 = MessageDigest.getInstance("MD5");<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> md5.update(challenge);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> md5.update(clientNonce);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> byte[] sessionHash = new byte[8];<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> System.arraycopy(md5.digest(), 0, sessionHash, 0, 8);<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> return lmResponse(ntlmHash, sessionHash);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span><a name="line.163"></a> |
| <span class="sourceLineNo">164</span> /**<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> * Creates the LM Hash of the user's password.<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> *<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> * @param password The password.<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> *<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> * @return The LM Hash of the given password, used in the calculation<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> * of the LM Response.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> */<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> private static byte[] lmHash(String password) throws Exception {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> byte[] oemPassword = password.toUpperCase().getBytes("US-ASCII");<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> int length = Math.min(oemPassword.length, 14);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> byte[] keyBytes = new byte[14];<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> System.arraycopy(oemPassword, 0, keyBytes, 0, length);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> Key lowKey = createDESKey(keyBytes, 0);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> Key highKey = createDESKey(keyBytes, 7);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> Cipher des = Cipher.getInstance("DES/ECB/NoPadding");<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> des.init(Cipher.ENCRYPT_MODE, lowKey);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> byte[] lowHash = des.doFinal(LM_HASH_MAGIC_CONSTANT);<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> des.init(Cipher.ENCRYPT_MODE, highKey);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> byte[] highHash = des.doFinal(LM_HASH_MAGIC_CONSTANT);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> byte[] lmHash = new byte[16];<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> System.arraycopy(lowHash, 0, lmHash, 0, 8);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> System.arraycopy(highHash, 0, lmHash, 8, 8);<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> return lmHash;<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> }<a name="line.188"></a> |
| <span class="sourceLineNo">189</span><a name="line.189"></a> |
| <span class="sourceLineNo">190</span> /**<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * Creates the NTLM Hash of the user's password.<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> *<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * @param password The password.<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> *<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> * @return The NTLM Hash of the given password, used in the calculation<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> * of the NTLM Response and the NTLMv2 and LMv2 Hashes.<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> */<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> private static byte[] ntlmHash(String password) throws Exception {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> byte[] unicodePassword = password.getBytes("UnicodeLittleUnmarked");<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> MessageDigest md4 = MessageDigest.getInstance("MD4");<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> return md4.digest(unicodePassword);<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> /**<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * Creates the NTLMv2 Hash of the user's password.<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> *<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> * @param target The authentication target (i.e., domain).<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> * @param user The username.<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> * @param password The password.<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> *<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> * @return The NTLMv2 Hash, used in the calculation of the NTLMv2<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> * and LMv2 Responses.<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> */<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> private static byte[] ntlmv2Hash(String target, String user, String password) throws Exception {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> byte[] ntlmHash = ntlmHash(password);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> String identity = user.toUpperCase() + target;<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> return hmacMD5(identity.getBytes("UnicodeLittleUnmarked"), ntlmHash);<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span><a name="line.219"></a> |
| <span class="sourceLineNo">220</span> /**<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> * Creates the LM Response from the given hash and Type 2 challenge.<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> *<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> * @param hash The LM or NTLM Hash.<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> * @param challenge The server challenge from the Type 2 message.<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> *<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> * @return The response (either LM or NTLM, depending on the provided<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> * hash).<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> */<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> private static byte[] lmResponse(byte[] hash, byte[] challenge) throws Exception {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> byte[] keyBytes = new byte[21];<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> System.arraycopy(hash, 0, keyBytes, 0, 16);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> Key lowKey = createDESKey(keyBytes, 0);<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> Key middleKey = createDESKey(keyBytes, 7);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> Key highKey = createDESKey(keyBytes, 14);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> Cipher des = Cipher.getInstance("DES/ECB/NoPadding");<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> des.init(Cipher.ENCRYPT_MODE, lowKey);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> byte[] lowResponse = des.doFinal(challenge);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> des.init(Cipher.ENCRYPT_MODE, middleKey);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> byte[] middleResponse = des.doFinal(challenge);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> des.init(Cipher.ENCRYPT_MODE, highKey);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> byte[] highResponse = des.doFinal(challenge);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> byte[] lmResponse = new byte[24];<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> System.arraycopy(lowResponse, 0, lmResponse, 0, 8);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> System.arraycopy(middleResponse, 0, lmResponse, 8, 8);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> System.arraycopy(highResponse, 0, lmResponse, 16, 8);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> return lmResponse;<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span><a name="line.248"></a> |
| <span class="sourceLineNo">249</span> /**<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * Creates the LMv2 Response from the given hash, client data, and<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * Type 2 challenge.<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> *<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * @param hash The NTLMv2 Hash.<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * @param clientData The client data (blob or client nonce).<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * @param challenge The server challenge from the Type 2 message.<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> *<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * @return The response (either NTLMv2 or LMv2, depending on the<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> * client data).<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> */<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> private static byte[] lmv2Response(byte[] hash, byte[] clientData, byte[] challenge) throws Exception {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> byte[] data = new byte[challenge.length + clientData.length];<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> System.arraycopy(challenge, 0, data, 0, challenge.length);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> System.arraycopy(clientData, 0, data, challenge.length, clientData.length);<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> byte[] mac = hmacMD5(data, hash);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> byte[] lmv2Response = new byte[mac.length + clientData.length];<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> System.arraycopy(mac, 0, lmv2Response, 0, mac.length);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> System.arraycopy(clientData, 0, lmv2Response, mac.length, clientData.length);<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return lmv2Response;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> /**<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * Creates the NTLMv2 blob from the given target information block and<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * client nonce.<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> *<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> * @param targetInformation The target information block from the Type 2<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> * message.<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> * @param clientNonce The random 8-byte client nonce.<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> * @param time the time stamp.<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> *<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> * @return The blob, used in the calculation of the NTLMv2 Response.<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> */<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> private static byte[] createBlob(byte[] targetInformation, byte[] clientNonce, long time) {<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> byte[] blobSignature = new byte[] { (byte) 0x01, (byte) 0x01, (byte) 0x00, (byte) 0x00 };<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> byte[] reserved = new byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 };<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> byte[] unknown1 = new byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 };<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> byte[] unknown2 = new byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 };<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> time += 11644473600000l; // milliseconds from January 1, 1601 -> epoch.<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> time *= 10000; // tenths of a microsecond.<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> // convert to little-endian byte array.<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> byte[] timestamp = new byte[8];<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> for (int i = 0; i < 8; i++) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> timestamp[i] = (byte) time;<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> time >>>= 8;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> byte[] blob = new byte[blobSignature.length + reserved.length + timestamp.length + clientNonce.length<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> + unknown1.length + targetInformation.length + unknown2.length];<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> int offset = 0;<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> System.arraycopy(blobSignature, 0, blob, offset, blobSignature.length);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> offset += blobSignature.length;<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> System.arraycopy(reserved, 0, blob, offset, reserved.length);<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> offset += reserved.length;<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> System.arraycopy(timestamp, 0, blob, offset, timestamp.length);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> offset += timestamp.length;<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> System.arraycopy(clientNonce, 0, blob, offset, clientNonce.length);<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> offset += clientNonce.length;<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> System.arraycopy(unknown1, 0, blob, offset, unknown1.length);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> offset += unknown1.length;<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> System.arraycopy(targetInformation, 0, blob, offset, targetInformation.length);<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> offset += targetInformation.length;<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> System.arraycopy(unknown2, 0, blob, offset, unknown2.length);<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> return blob;<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> }<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> /**<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * Calculates the HMAC-MD5 hash of the given data using the specified<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> * hashing key.<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> *<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> * @param data The data for which the hash will be calculated.<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> * @param key The hashing key.<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> *<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> * @return The HMAC-MD5 hash of the given data.<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> */<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> public static byte[] hmacMD5(byte[] data, byte[] key) throws Exception {<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> byte[] ipad = new byte[64];<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> byte[] opad = new byte[64];<a name="line.325"></a> |
| <span class="sourceLineNo">326</span><a name="line.326"></a> |
| <span class="sourceLineNo">327</span> // Stores key in pads and XOR it with ipad and opad values<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> for (int i = 0; i < 64; i++) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> if (i < key.length) {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> ipad[i] = (byte) (key[i] ^ 0x36);<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> opad[i] = (byte) (key[i] ^ 0x5c);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> } else {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> ipad[i] = 0x36;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> opad[i] = 0x5c;<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> }<a name="line.336"></a> |
| <span class="sourceLineNo">337</span><a name="line.337"></a> |
| <span class="sourceLineNo">338</span> byte[] content = new byte[data.length + 64];<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> System.arraycopy(ipad, 0, content, 0, 64);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> System.arraycopy(data, 0, content, 64, data.length);<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> MessageDigest md5 = MessageDigest.getInstance("MD5");<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> data = md5.digest(content);<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> content = new byte[data.length + 64];<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> System.arraycopy(opad, 0, content, 0, 64);<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> System.arraycopy(data, 0, content, 64, data.length);<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> return md5.digest(content);<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> }<a name="line.347"></a> |
| <span class="sourceLineNo">348</span><a name="line.348"></a> |
| <span class="sourceLineNo">349</span> /**<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> * Creates a DES encryption key from the given key material.<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> *<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> * @param bytes A byte array containing the DES key material.<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * @param offset The offset in the given byte array at which<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> * the 7-byte key material starts.<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> *<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> * @return A DES encryption key created from the key material<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> * starting at the specified offset in the given byte array.<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> */<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> private static Key createDESKey(byte[] bytes, int offset) {<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> byte[] keyBytes = new byte[7];<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> System.arraycopy(bytes, offset, keyBytes, 0, 7);<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> byte[] material = new byte[8];<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> material[0] = keyBytes[0];<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> material[1] = (byte) (keyBytes[0] << 7 | (keyBytes[1] & 0xff) >>> 1);<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> material[2] = (byte) (keyBytes[1] << 6 | (keyBytes[2] & 0xff) >>> 2);<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> material[3] = (byte) (keyBytes[2] << 5 | (keyBytes[3] & 0xff) >>> 3);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> material[4] = (byte) (keyBytes[3] << 4 | (keyBytes[4] & 0xff) >>> 4);<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> material[5] = (byte) (keyBytes[4] << 3 | (keyBytes[5] & 0xff) >>> 5);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> material[6] = (byte) (keyBytes[5] << 2 | (keyBytes[6] & 0xff) >>> 6);<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> material[7] = (byte) (keyBytes[6] << 1);<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> oddParity(material);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> return new SecretKeySpec(material, "DES");<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span><a name="line.374"></a> |
| <span class="sourceLineNo">375</span> /**<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> * Applies odd parity to the given byte array.<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> *<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> * @param bytes The data whose parity bits are to be adjusted for<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * odd parity.<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> */<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> private static void oddParity(byte[] bytes) {<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> for (int i = 0; i < bytes.length; i++) {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> byte b = bytes[i];<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> boolean needsParity = (((b >>> 7) ^ (b >>> 6) ^ (b >>> 5) ^ (b >>> 4) ^ (b >>> 3) ^ (b >>> 2) ^ (b >>> 1)) & 0x01) == 0;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> if (needsParity) {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> bytes[i] |= (byte) 0x01;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> } else {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> bytes[i] &= (byte) 0xfe;<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> }<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> }<a name="line.391"></a> |
| <span class="sourceLineNo">392</span>}<a name="line.392"></a> |
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| </div> |
| </body> |
| </html> |
